Baltimore — flights from Chicago to Baltimore

Flight Deals from Chicago to Baltimore from $92

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Good to Know

Essential information to help you plan your flight from Chicago to Baltimore.

Timing Your Trip

The best day, time of day, season and booking window for this route.

Price Drop Deals

Express Deal
Frontier AirlinesFrontier Airlinesfound Oct 10
11/02/26
7:55 am
ORDChicago O Hare Airport
28h 6mFLLFort Lauderdale Hollywood International Airport
11/03/26
1:01 pm
BWIBaltimore/Washington International Thurgood Marshall Airport
11/09/26
9:53 am
BWIBaltimore/Washington International Thurgood Marshall Airport
2h 30m
11/09/26
11:23 am
ORDChicago O Hare Airport
$143
Frontier AirlinesFrontier Airlinesfound Oct 10
11/02/26
6:00 am
ORDChicago O Hare Airport
1h 57m
11/02/26
8:57 am
BWIBaltimore/Washington International Thurgood Marshall Airport
11/09/26
9:53 am
BWIBaltimore/Washington International Thurgood Marshall Airport
2h 30m
11/09/26
11:23 am
ORDChicago O Hare Airport
$146
Frontier AirlinesFrontier Airlinesfound Oct 10
11/02/26
10:19 am
ORDChicago O Hare Airport
5h 25mATLHartsfield Jackson Atlanta International Airport
11/02/26
4:44 pm
BWIBaltimore/Washington International Thurgood Marshall Airport
11/09/26
9:53 am
BWIBaltimore/Washington International Thurgood Marshall Airport
2h 30m
11/09/26
11:23 am
ORDChicago O Hare Airport
$174
Frontier AirlinesFrontier Airlinesfound Oct 10
11/02/26
9:51 am
ORDChicago O Hare Airport
6h 42mMCOOrlando International Airport
11/02/26
5:33 pm
BWIBaltimore/Washington International Thurgood Marshall Airport
11/09/26
9:53 am
BWIBaltimore/Washington International Thurgood Marshall Airport
2h 30m
11/09/26
11:23 am
ORDChicago O Hare Airport
$174
Flight plus hotel
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Frontier AirlinesFrontier Airlinesfound Oct 10
11/02/26
6:16 am
MDWChicago Midway Airport
9h 28mATLHartsfield Jackson Atlanta International Airport
11/02/26
4:44 pm
BWIBaltimore/Washington International Thurgood Marshall Airport
11/09/26
9:53 am
BWIBaltimore/Washington International Thurgood Marshall Airport
2h 30m
11/09/26
11:23 am
ORDChicago O Hare Airport
$180
Frontier AirlinesFrontier Airlinesfound Oct 10
11/02/26
9:51 am
ORDChicago O Hare Airport
27h 17mMCOOrlando International Airport
11/03/26
2:08 pm
BWIBaltimore/Washington International Thurgood Marshall Airport
11/09/26
9:53 am
BWIBaltimore/Washington International Thurgood Marshall Airport
2h 30m
11/09/26
11:23 am
ORDChicago O Hare Airport
$180
Frontier AirlinesFrontier Airlinesfound Oct 15
11/18/26
6:08 am
MDWChicago Midway Airport
9h 6mATLHartsfield Jackson Atlanta International Airport
11/18/26
4:14 pm
BWIBaltimore/Washington International Thurgood Marshall Airport
11/25/26
2:29 pm
BWIBaltimore/Washington International Thurgood Marshall Airport
2h 28m
11/25/26
3:57 pm
ORDChicago O Hare Airport
$205
Southwest AirlinesSouthwest Airlinesfound Oct 10
11/02/26
5:05 am
MDWChicago Midway Airport
1h 50m
11/02/26
7:55 am
BWIBaltimore/Washington International Thurgood Marshall Airport
11/09/26
2:55 pm
BWIBaltimore/Washington International Thurgood Marshall Airport
2h 5m
11/09/26
4:00 pm
MDWChicago Midway Airport
$288
American AirlinesAmerican Airlinesfound Oct 10
11/02/26
9:00 pm
ORDChicago O Hare Airport
1h 55m
11/02/26
11:55 pm
BWIBaltimore/Washington International Thurgood Marshall Airport
11/09/26
11:48 am
BWIBaltimore/Washington International Thurgood Marshall Airport
2h 30m
11/09/26
1:18 pm
ORDChicago O Hare Airport
$291
Southwest AirlinesSouthwest Airlinesfound Oct 10
11/02/26
7:30 am
MDWChicago Midway Airport
1h 50m
11/02/26
10:20 am
BWIBaltimore/Washington International Thurgood Marshall Airport
11/09/26
7:05 pm
BWIBaltimore/Washington International Thurgood Marshall Airport
2h 5m
11/09/26
8:10 pm
MDWChicago Midway Airport
$288

Top Deals on flights from Chicago to Baltimore

Chicago, US (CHI) - Baltimore, US (BWI)

Frontier AirlinesFrontier Airlines

Oct 22

6:00 am
ORDChicago O Hare Airport
2h 3mNonstop

Oct 22

9:03 am
BWIBaltimore/Washington International Thurgood Marshall Airport
Search More

as low as

$92

Chicago, US (CHI) - Baltimore, US (BWI)

Frontier AirlinesFrontier Airlines

Oct 22

6:22 am
MDWChicago Midway Airport
9h 25m1 stop · ATL

Oct 22

4:47 pm
BWIBaltimore/Washington International Thurgood Marshall Airport
Search More

as low as

$121

Chicago, US (CHI) - Baltimore, US (BWI)

Frontier AirlinesFrontier Airlines

Oct 22

7:40 am
ORDChicago O Hare Airport
11h 37m1 stop · IAH

Oct 22

8:17 pm
BWIBaltimore/Washington International Thurgood Marshall Airport
Search More

as low as

$121

Chicago, US (CHI) - Baltimore, US (BWI)

Frontier AirlinesFrontier Airlines

Oct 22

6:58 pm
ORDChicago O Hare Airport
12h 22m1 stop · MCO

Oct 23

8:20 am
BWIBaltimore/Washington International Thurgood Marshall Airport
Search More

as low as

$121

Chicago, US (CHI) - Baltimore, US (BWI)

Frontier AirlinesFrontier Airlines

Oct 22

6:58 pm
ORDChicago O Hare Airport
21h 32m1 stop · MCO

Oct 23

5:30 pm
BWIBaltimore/Washington International Thurgood Marshall Airport
Search More

as low as

$121

Chicago, US (CHI) - Baltimore, US (BWI)

Frontier AirlinesFrontier Airlines

Oct 22

6:58 pm
ORDChicago O Hare Airport
24h 59m1 stop · MCO

Oct 23

8:57 pm
BWIBaltimore/Washington International Thurgood Marshall Airport
Search More

as low as

$121

Chicago, US (CHI) - Baltimore, US (BWI)

Southwest AirlinesSouthwest Airlines

Oct 22

7:25 am
MDWChicago Midway Airport
1h 45mNonstop

Oct 22

10:10 am
BWIBaltimore/Washington International Thurgood Marshall Airport
Search More

as low as

$140

Chicago, US (CHI) - Baltimore, US (BWI)

Southwest AirlinesSouthwest Airlines

Oct 22

11:00 am
MDWChicago Midway Airport
1h 45mNonstop

Oct 22

1:45 pm
BWIBaltimore/Washington International Thurgood Marshall Airport
Search More

as low as

$140

Chicago, US (CHI) - Baltimore, US (BWI)

Southwest AirlinesSouthwest Airlines

Oct 22

5:00 am
MDWChicago Midway Airport
1h 45mNonstop

Oct 22

7:45 am
BWIBaltimore/Washington International Thurgood Marshall Airport
Search More

as low as

$140

Chicago, US (CHI) - Baltimore, US (BWI)

Southwest AirlinesSouthwest Airlines

Oct 22

6:25 pm
MDWChicago Midway Airport
1h 50mNonstop

Oct 22

9:15 pm
BWIBaltimore/Washington International Thurgood Marshall Airport
Search More

as low as

$140

Chicago, US (CHI) - Baltimore, US (BWI)

Southwest AirlinesSouthwest Airlines

Oct 22

8:55 pm
MDWChicago Midway Airport
1h 55mNonstop

Oct 22

11:50 pm
BWIBaltimore/Washington International Thurgood Marshall Airport
Search More

as low as

$140

Chicago, US (CHI) - Baltimore, US (BWI)

Frontier AirlinesFrontier Airlines

Nov 2

7:55 am
ORDChicago O Hare Airport
28h 6m1 stop · FLL

Nov 3

1:01 pm
BWIBaltimore/Washington International Thurgood Marshall Airport
Search More

as low as

$143

Best Baltimore Hotel + Flight Packages

Chicago - Baltimore packages

Best Baltimore Hotel + Flight + Car Packages

Chicago - Baltimore packages

When is the cheapest time to fly?

Cheapest in late January at about $234

Fares from Chicago to Baltimore are lowest in late January, around $234, and February is the cheapest month overall, averaging $242. They peak in late December at about $318, $84 more than the low. The yearly average is $282.

JanFebMarAprMayJunJulAugSepOctNovDec$0$60$120$180$240$300$360
Show the data
When is the cheapest time to fly?
MonthAverage fareEarly monthLate month
January$244$254$234
February$242$238$245
March$278$264$292
April$285$287$282
May$299$292$305
June$313$311$316
July$312$311$314
August$285$299$272
September$266$263$269
October$278$278$278
November$278$270$285
December$304$289$318

How far in advance should I book?

Cheapest about 5 weeks out at $143

Book about 5 weeks before departure for the best fares from Chicago to Baltimore, around $143. Booking in the final days before the flight costs about $254, $111 more. Booking six months ahead runs about $219.

1w2w1mo2mo3mo4mo5mo$0$40$80$120$160$200$240$280
Show the data
How far in advance should I book? (selected points, lowest and highest included)
Days before departureAverage fare
180 days$219
172 days$217
164 days$215
156 days$211
148 days$204
140 days$198
132 days$197
124 days$196
116 days$191
108 days$187
100 days$186
92 days$180
84 days$173
76 days$171
68 days$168
2mo$163
52 days$154
44 days$149
36 days$145
32 days$143
28 days$145
20 days$165
12 days$202
4 days$240
0 days$254
0 days$254

What's the cheapest day of the week to fly?

Thursday is the cheapest day of the week to fly from Chicago to Baltimore. At $274 it is 10% cheaper than the average day. Sunday is the most expensive day, 15% above average.

$352Sun$326Mon$309Tue$296Wed$274Thu$283Fri$303Sat
Show the data
What's the cheapest day of the week to fly?
DayAverage fare
Sun$352
Mon$326
Tue$309
Wed$296
Thu$274
Fri$283
Sat$303

When is the best time of day to fly?

Morning (5am - 12pm) is the cheapest time of day to fly from Chicago to Baltimore. At $296 it is 11% cheaper than the average time. Afternoon (2pm - 5pm) is the most expensive time, 12% above average.

$296Morning$337Midday$371Afternoon$318Evening$341Late Night
Show the data
When is the best time of day to fly?
Time of dayAverage fare
Morning$296
Midday$337
Afternoon$371
Evening$318
Late Night$341

What do round-trip flights from Chicago to Baltimore cost?

Share of fares in each price range, adjusted to current prices.

4%$0to $15025%$150to $30032%$300to $45021%$450to $6006%$600to $7508%$750to $9004%$900and up
Show the data
What do round-trip flights from Chicago to Baltimore cost?
Price rangeShare of fares
$0 to $1504%
$150 to $30025%
$300 to $45032%
$450 to $60021%
$600 to $7506%
$750 to $9008%
$900 and up4%
Methodology: learn how we calculate these charts

The charts “When is the cheapest time to fly?”, “How far in advance should I book?”, “What's the cheapest day of the week to fly?” and “What do round-trip flights from Chicago to Baltimore cost?” are built from the prices Priceline customers actually paid for flights on this route over the past 12 months or more.

Where a route has too few bookings to fill every point in a chart, we borrow the shape of the curve from a group of routes with similar price behavior and fit it to the fares booked on this route.

Because past fares don’t reflect today’s market, we then adjust the historical prices for current conditions such as inflation and fuel costs, using the round-trip fares found in recent searches on this route.

The chart “When is the best time of day to fly?” is calculated directly from the fares found in recent searches, not from historical bookings.

Frequently Asked Questions

Everything you need to know about flying from Chicago to Baltimore.

What is the typical flight duration from Chicago to Baltimore?

The flight from Chicago to Baltimore is about 610 miles. It typically takes 1 hour 50 minutes nonstop. The return leg to Chicago is slightly longer at about 2 hours 5 minutes.
Methodology
Flight times and distances come from our flight-schedule database, which combines published airline timetables, U.S. government schedule data from the Bureau of Transportation Statistics (BTS), and observed flight operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). The typical flight time is the median scheduled block time across all carriers on the route, computed the same way in both directions so the difference reflects prevailing winds rather than any change in method. Distance is the great-circle distance between the two airports, so the actual flown track is typically 2-5% longer.

Are there any direct flights from Chicago to Baltimore?

Yes, there are direct flights from Chicago to Baltimore, currently scheduled non-stop on Southwest Airlines (from Midway), United Airlines (from O'Hare), and American Airlines (from O'Hare, with some flights operated by Republic Airways and Envoy Air). Southwest runs up to 44 weekly flights, United 34, and American 21, and all three carriers fly daily. Flights depart throughout the day from around 5:05 AM to 9:25 PM.
Methodology
Airlines and weekly frequencies are compiled from our flight-schedule database, which combines published airline timetables, U.S. government schedule data from the Bureau of Transportation Statistics (BTS), and observed flight operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). We count each operating carrier's scheduled weekly departures and the days it flies; where there is no nonstop service, connecting carriers are identified by linking scheduled nonstop segments through common hub airports. Where a median fare is shown for a carrier, it reflects the real fares Priceline users found on this route in the last 72 hours.

What are the ground transportation options in Baltimore?

Getting from BWI to downtown Baltimore is straightforward, with the MTA Light Rail being the most direct and heavily used public option at just $2.00 each way, with trains running roughly every ten to fifteen minutes during the day. Ride-share services like Uber and Lyft are also very popular and pick up on the outer curb of the upper level, offering a faster but pricier door-to-door trip of about 15 to 20 minutes. Taxis are readily available outside baggage claim near doors 5 and 13, while several rental car companies operate on-site for those planning to drive themselves. Amtrak and MARC commuter rail serve the airport via a free shuttle to the nearby rail station, which is excellent for connections beyond Baltimore, though it is less convenient for reaching the city center itself. The Light Rail is generally the most-used mode for downtown trips because of its low fare, dedicated right-of-way, and direct station at the terminal.
References

When is the cheapest time to fly from Chicago to Baltimore?

Fares from Chicago to Baltimore are lowest in late January, around $234. February is the cheapest month overall, averaging $242, followed by January ($244) and September ($266). June is the most expensive month at about $313, and fares peak in late December at about $318. The yearly average is $282. Fares are adjusted to current market conditions.
Methodology
Seasonal fares come from Priceline's own air booking-summary archive, analysed in-house and refreshed monthly. For each day of the year we take a representative round-trip fare, a blend of the 25th-percentile and average ticket price over the route's bookings, and smooth the series into a seasonal curve; the half-month low and high and the monthly figures quoted here are averages of that curve. Thin and international routes borrow their seasonal shape from the nearest busy routes, with the price level anchored to the route's own bookings.

How far in advance should I book tickets from Chicago to Baltimore?

Book about 5 weeks before departure for the best fares from Chicago to Baltimore, around $143. Booking in the final days before the flight costs about $254, $111 more. Booking six months ahead runs about $219. Fares are adjusted to current market conditions.
Methodology
Booking-window guidance comes from the same monthly in-house analysis of Priceline's own air booking-summary archive. We aggregate the route's bookings by how many days before departure they were made, from about 180 days out to the day of travel, smooth the curve, and highlight the stretch of lead times with the lowest average fare. Thin and international routes borrow the curve shape from the nearest busy routes, anchored to the route's own price level. It reflects current fares and is refreshed monthly.

Are overnight (red‑eye) flights available from Chicago to Baltimore?

No nonstop red-eye flights operate from Chicago to Baltimore. Connecting itineraries with an overnight long leg do exist, such as a Southwest flight departing Atlanta at 10:55 PM and landing in Baltimore at 12:50 AM, or a Southwest flight departing Houston Hobby at 9:35 PM and arriving at 1:35 AM.
Methodology
Red-eye flights are identified from scheduled local departure and arrival times and block times in our flight-schedule database — built from published airline timetables and official schedule data, including U.S. Department of Transportation records for domestic routes. A flight counts as a red-eye when it departs in the afternoon or evening (3 p.m. or later local time) or in the early hours before 4 a.m., and is in the air at some point between midnight and 4 a.m. local time at both its departure airport and its arrival airport. An evening flight that lands before midnight at its destination is never counted, nor is a morning departure or a daytime long-haul that reaches the next calendar date only because of time zones. Each red-eye is labelled with its timing (for example, overnight and landing the next morning, or late-night and landing after midnight). For connecting itineraries the same rule is applied to the longer leg, from one representative day's flight search.

Which airlines usually operate this route from Chicago to Baltimore?

Southwest Airlines operates the most non-stop flights from Chicago to Baltimore, with 44 weekly departures from Midway, while United Airlines runs 34 weekly flights from O'Hare. American Airlines also serves the route from O'Hare with 21 weekly flights, operated by Republic Airways and Envoy Air under the American Eagle brand. All three carriers fly daily, with Southwest typically offering the lowest fares.
Methodology
Airlines and weekly frequencies come from our flight-schedule database, which combines published airline timetables, U.S. government schedule data from the Bureau of Transportation Statistics (BTS), and observed flight operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). We count each operating carrier's scheduled weekly departures and the days it flies; where there is no nonstop service, connecting carriers are identified by linking scheduled nonstop segments through common hub airports. Where a typical fare is shown for a carrier, it is the median of the real fares Priceline users found on this route in the last 72 hours.

How reliable are on‑time arrivals on this route from Chicago to Baltimore?

United Airlines is the most reliable carrier on this route, with 79.6% of flights arriving within 15 minutes of schedule and a 0.5% cancellation rate. American Eagle (operated by Envoy) follows at 77.5%, then Southwest at 79.0% from Midway, with Frontier trailing at 67.2% from O'Hare.
Methodology
On-time arrival and cancellation rates come from the U.S. Bureau of Transportation Statistics (BTS) Airline On-Time Performance dataset, which covers U.S. domestic routes only; a flight counts as on time when it arrives within 15 minutes of schedule. Carriers are ranked by arrival on-time rate on this route, and the carrier list itself comes from our flight-schedule database, which combines published airline timetables, U.S. government schedule data from the Bureau of Transportation Statistics (BTS), and observed flight operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI).

Which airport should I use in Baltimore?

Baltimore has one primary commercial airport, Baltimore/Washington International Thurgood Marshall Airport (BWI), located about 10 miles south of downtown Baltimore and roughly 30 miles northeast of Washington, D.C. It serves as a focus city for Southwest Airlines and offers a range of domestic and international flights, making it the standard choice for this route.

How do I get to Chicago O'Hare International Airport from the city center?

From downtown Chicago to O'Hare International Airport, the CTA Blue Line 'L' train is the most popular and affordable option, running 24/7 and taking about 45 minutes. Taxis and ride-share services like Uber or Lyft offer door-to-door convenience in roughly 30–40 minutes at a higher cost. Metra's North Central Service provides weekday commuter rail from Union Station, while Pace suburban buses serve the airport via the Multi-Modal Facility.
References

Are there hotels or sleeping facilities at Baltimore airport?

There are sleep cabins inside the terminal at Minute Suites, located near Gate C3 in Concourse C, offering private suites with a daybed that sleeps two for $65 per hour. Several nearby hotels provide free airport shuttles, including Aloft BWI, Hilton Baltimore BWI Airport, Holiday Inn BWI Airport, Country Inn & Suites by Radisson, and BWI Airport Marriott, all within about 1.2 to 1.5 miles. The airport remains open 24 hours, and travelers can also rest in seating areas throughout the concourses.
References

What facilities and services are available to travelers at Baltimore/Washington International Thurgood Marshall Airport?

Travelers arriving at Baltimore/Washington International Thurgood Marshall Airport can use free Wi-Fi throughout the terminal and on airport shuttles. The airport has four animal relief areas, two before security and two after security. Family restrooms are available in many locations throughout the terminal building. Nursing mothers have access to private rooms and nursing pods throughout the airport. Children's play areas are available, and information desks are located in the international concourse arrivals area. The airport is non-smoking, and there are no luggage storage lockers.
References

Are there accessible services or children's facilities at the Chicago and Baltimore airports?

Chicago O'Hare International Airport coordinates wheelchair assistance through each airline, offers sensory-friendly resources and the Hidden Disabilities Sunflower program, and provides accessible Companion Plus Restrooms plus service animal relief areas. Baltimore/Washington International Thurgood Marshall Airport participates in the same Sunflower program, partners with Aira for visual assistance, and has family restrooms throughout the terminal including three with adult changing stations. Passengers at both airports should arrange wheelchair assistance directly with their airline before travel, and can contact TSA Cares for security screening accommodations.
References

What aircraft are typically used on flights from Chicago to Baltimore?

Southwest Airlines flies the most between Chicago and Baltimore, using Boeing 737-700 and Boeing 737 family aircraft from Midway. United operates from O'Hare with Airbus A320, Boeing 737 MAX 9, Boeing 737-800, and Boeing 737 family jets. American Eagle service, operated by Envoy Air and Republic Airways, uses Embraer E170 and E175 regional jets.
Methodology
Aircraft types come from our flight-schedule database, which combines published airline timetables, U.S. government schedule data from the Bureau of Transportation Statistics (BTS), and observed flight operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). For U.S. routes the type is grounded in the tail number that actually operated the flight; elsewhere it comes from the airline's filed equipment code. Where the source does not commit to a specific variant we name the aircraft family (for example Airbus A320 family) rather than guess, and where no reliable type is on file the aircraft is omitted rather than estimated. Types describe typical scheduled equipment and can vary with seasonal or day-of-week assignments and last-minute swaps.

Which airline alliances serve flights from Chicago to Baltimore?

On the Chicago–Baltimore route, Southwest, United, and American Airlines are the carriers currently scheduled nonstop, with American's flights operated by regional partners Republic Airways and Envoy Air. United belongs to Star Alliance and American belongs to oneworld, while Southwest is a major carrier that belongs to no alliance. Other alliances may serve this route via connecting itineraries.
Methodology
Airlines and weekly frequencies are compiled from our flight-schedule database, which combines published airline timetables, U.S. government schedule data from the Bureau of Transportation Statistics (BTS), and observed flight operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). We count each operating carrier's scheduled weekly departures and the days it flies; where there is no nonstop service, connecting carriers are identified by linking scheduled nonstop segments through common hub airports. Where a median fare is shown for a carrier, it reflects the real fares Priceline users found on this route in the last 72 hours.

What are the best airport lounge options when departing from Chicago?

Chicago O'Hare has a wide range of lounge options for departing travelers, with United operating several United Clubs in Terminals 1 and 2 plus a Polaris Lounge reserved for international first- and business-class passengers. American Airlines offers Admirals Club locations in Terminal 3 and a Flagship Lounge for premium international flyers, while Delta's Sky Club sits in Terminal 5. Terminal 5 also hosts international-brand lounges including Air France, LOT Polish, Swissport, SAS, SWISS, and British Airways spaces, with access typically tied to airline status, cabin class, or memberships like Priority Pass.
References

Are same‑day changes or standby possible on this route?

Same‑day changes and standby are possible on this route only where the airline and fare allow, with flexible and premium tickets offering the most options while Basic Economy generally does not.