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Business Class Flight Deals from Seattle to Illinois from $682

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Top Deals on Business Class Flights from Seattle to Chicago

Seattle, US (SEA) - Chicago, US (CHI)

American Airlines Logo
American Airlines

May 24

SEA
4h 14m
Direct

May 25

ORD
American Airlines Logo
American Airlines

May 31

ORD
4h 41m
Direct

Jun 1

SEA

as low as

$682

Seattle, US (SEA) - Chicago, US (CHI)

American Airlines Logo
American Airlines

May 24

SEA
4h 19m
Direct

May 24

ORD
American Airlines Logo
American Airlines

May 31

ORD
4h 41m
Direct

Jun 1

SEA

as low as

$682

Seattle, US (SEA) - Chicago, US (CHI)

American Airlines Logo
American Airlines

May 24

SEA
9h 27m
CLT

May 25

ORD
American Airlines Logo
American Airlines

May 31

ORD
4h 41m
Direct

Jun 1

SEA

as low as

$728

Seattle, US (SEA) - Chicago, US (CHI)

American Airlines Logo
American Airlines

May 24

SEA
4h 34m
Direct

May 24

ORD
American Airlines Logo
American Airlines

May 31

ORD
4h 41m
Direct

Jun 1

SEA

as low as

$739

Seattle, US (SEA) - Chicago, US (CHI)

American Airlines Logo
American Airlines

May 24

SEA
9h 27m
CLT

May 25

ORD
American Airlines Logo
American Airlines

May 31

ORD
4h 38m
Direct

May 31

SEA

as low as

$866

Seattle, US (SEA) - Chicago, US (CHI)

American Airlines Logo
American Airlines

May 24

SEA
9h 27m
CLT

May 25

ORD
American Airlines Logo
American Airlines

May 31

ORD
4h 41m
Direct

May 31

SEA

as low as

$866

Seattle, US (SEA) - Chicago, US (CHI)

Alaska Airlines Logo
Alaska Airlines

May 24

SEA
4h 11m
Direct

May 24

ORD
Alaska Airlines Logo
Alaska Airlines

May 31

ORD
4h 34m
Direct

May 31

SEA

as low as

$946

Seattle, US (SEA) - Chicago, US (CHI)

Alaska Airlines Logo
Alaska Airlines

May 24

SEA
4h 17m
Direct

May 24

ORD
Alaska Airlines Logo
Alaska Airlines

May 31

ORD
4h 34m
Direct

May 31

SEA

as low as

$946

Seattle, US (SEA) - Chicago, US (CHI)

Alaska Airlines Logo
Alaska Airlines

May 24

SEA
4h 17m
Direct

May 24

ORD
Alaska Airlines Logo
Alaska Airlines

May 31

ORD
4h 34m
Direct

May 31

SEA

as low as

$946

Seattle, US (SEA) - Chicago, US (CHI)

United Airlines Logo
United Airlines

Jun 11

SEA
12h 30m
ORD

Jun 11

CHI
United Airlines Logo
United Airlines

Jun 15

CHI
6h 24m
SFO
SEA

Jun 15

SEA

as low as

$14967

Seattle, US (SEA) - Chicago, US (CHI)

United Airlines Logo
United Airlines

May 13

SEA
8h 10m
DEN
ORD

May 13

CHI
United Airlines Logo
United Airlines

May 17

CHI
9h 14m
SEA

May 17

SEA

as low as

$14976

Seattle, US (SEA) - Chicago, US (CHI)

United Airlines Logo
United Airlines

Jun 4

SEA
8h 15m
DEN
ORD

Jun 4

CHI
United Airlines Logo
United Airlines

Jun 7

CHI
6h 24m
SEA

Jun 7

SEA

as low as

$14976

Top Deals on Business Class Flights from Seattle to Peoria

Seattle, US (SEA) - Peoria, US (PIA)

American Airlines Logo
American Airlines

May 24

SEA
8h 40m
DFW

May 24

PIA
American Airlines Logo
American Airlines

May 31

PIA
7h 18m
ORD

Jun 1

SEA

as low as

$1222

Seattle, US (SEA) - Peoria, US (PIA)

American Airlines Logo
American Airlines

May 24

SEA
10h 25m
ORD

May 24

PIA
American Airlines Logo
American Airlines

May 31

PIA
10h 13m
DFW

Jun 1

SEA

as low as

$1284

Seattle, US (SEA) - Peoria, US (PIA)

American Airlines Logo
American Airlines

May 24

SEA
7h 25m
ORD

May 25

PIA
American Airlines Logo
American Airlines

May 31

PIA
10h 13m
DFW

Jun 1

SEA

as low as

$1284

Seattle, US (SEA) - Peoria, US (PIA)

American Airlines Logo
American Airlines

May 24

SEA
15h 59m
ORD

May 24

PIA
American Airlines Logo
American Airlines

May 31

PIA
10h 13m
DFW

Jun 1

SEA

as low as

$1284

Seattle, US (SEA) - Peoria, US (PIA)

American Airlines Logo
American Airlines

May 24

SEA
25h 23m
ORD

May 25

PIA
American Airlines Logo
American Airlines

May 31

PIA
10h 13m
DFW

Jun 1

SEA

as low as

$1284

Seattle, US (SEA) - Peoria, US (PIA)

American Airlines Logo
American Airlines

May 24

SEA
11h 8m
CLT

May 24

PIA
American Airlines Logo
American Airlines

May 31

PIA
7h 18m
ORD

Jun 1

SEA

as low as

$1285

Seattle, US (SEA) - Peoria, US (PIA)

American Airlines Logo
American Airlines

May 24

SEA
7h 35m
DFW

May 24

PIA
American Airlines Logo
American Airlines

May 31

PIA
7h 18m
ORD

Jun 1

SEA

as low as

$1285

Seattle, US (SEA) - Peoria, US (PIA)

American Airlines Logo
American Airlines

May 24

SEA
8h 48m
CLT

May 24

PIA
American Airlines Logo
American Airlines

May 31

PIA
7h 18m
ORD

Jun 1

SEA

as low as

$1285

Seattle, US (SEA) - Peoria, US (PIA)

American Airlines Logo
American Airlines

May 24

SEA
22h 1m
ORD

May 25

PIA
American Airlines Logo
American Airlines

May 31

PIA
10h 13m
DFW

Jun 1

SEA

as low as

$1320

Seattle, US (SEA) - Peoria, US (PIA)

American Airlines Logo
American Airlines

May 24

SEA
16h 27m
ORD

May 25

PIA
American Airlines Logo
American Airlines

May 31

PIA
10h 13m
DFW

Jun 1

SEA

as low as

$1320

Top Deals on Business Class Flights from Seattle to Moline

Seattle, US (SEA) - Moline, US (MLI)

American Airlines Logo
American Airlines

May 24

SEA
8h 39m
ORD

May 25

MLI
American Airlines Logo
American Airlines

May 31

MLI
7h 25m
ORD

Jun 1

SEA

as low as

$1068

Seattle, US (SEA) - Moline, US (MLI)

American Airlines Logo
American Airlines

May 24

SEA
8h 56m
DFW

May 24

MLI
American Airlines Logo
American Airlines

May 31

MLI
7h 25m
ORD

Jun 1

SEA

as low as

$1141

Seattle, US (SEA) - Moline, US (MLI)

American Airlines Logo
American Airlines

May 24

SEA
9h 15m
DFW

May 25

MLI
American Airlines Logo
American Airlines

May 31

MLI
7h 25m
ORD

Jun 1

SEA

as low as

$1141

Seattle, US (SEA) - Moline, US (MLI)

American Airlines Logo
American Airlines

May 24

SEA
8h 39m
ORD

May 25

MLI
American Airlines Logo
American Airlines

May 31

MLI
10h 14m
DFW

Jun 1

SEA

as low as

$1281

Seattle, US (SEA) - Moline, US (MLI)

American Airlines Logo
American Airlines

May 24

SEA
8h 39m
ORD

May 25

MLI
American Airlines Logo
American Airlines

May 31

MLI
10h 8m
DFW

May 31

SEA

as low as

$1281

Seattle, US (SEA) - Moline, US (MLI)

American Airlines Logo
American Airlines

May 24

SEA
8h 39m
ORD

May 25

MLI
American Airlines Logo
American Airlines

May 31

MLI
8h 59m
DFW

May 31

SEA

as low as

$1351

Seattle, US (SEA) - Moline, US (MLI)

American Airlines Logo
American Airlines

May 24

SEA
10h 21m
ORD

May 24

MLI
American Airlines Logo
American Airlines

May 31

MLI
10h 8m
DFW

May 31

SEA

as low as

$1351

Seattle, US (SEA) - Moline, US (MLI)

Alaska Airlines Logo
Alaska Airlines

May 24

SEA
8h 11m
ORD

May 24

MLI
Alaska Airlines Logo
Alaska Airlines

May 31

MLI
8h 36m
ORD

May 31

SEA

as low as

$4078

Seattle, US (SEA) - Moline, US (MLI)

Alaska Airlines Logo
Alaska Airlines

May 24

SEA
8h 11m
ORD

May 24

MLI
Alaska Airlines Logo
Alaska Airlines

May 31

MLI
8h 59m
ORD

May 31

SEA

as low as

$4078

Seattle, US (SEA) - Moline, US (MLI)

Alaska Airlines Logo
Alaska Airlines

May 24

SEA
9h 10m
ORD

May 24

MLI
Alaska Airlines Logo
Alaska Airlines

May 31

MLI
8h 59m
ORD

May 31

SEA

as low as

$4078

Seattle, US (SEA) - Moline, US (MLI)

Alaska Airlines Logo
Alaska Airlines

May 24

SEA
9h 10m
ORD

May 24

MLI
Alaska Airlines Logo
Alaska Airlines

May 31

MLI
8h 36m
ORD

May 31

SEA

as low as

$4078

Seattle, US (SEA) - Moline, US (MLI)

Alaska Airlines Logo
Alaska Airlines

May 24

SEA
8h 28m
ORD

May 24

MLI
Alaska Airlines Logo
Alaska Airlines

May 31

MLI
8h 59m
ORD

May 31

SEA

as low as

$4078

Top Deals on Business Class Flights from Seattle to Bloomington

Seattle, US (SEA) - Bloomington, US (BMI)

American Airlines Logo
American Airlines

May 23

SEA
8h 42m
DFW

May 23

BMI
American Airlines Logo
American Airlines

May 30

BMI
10h 37m
DFW

May 31

SEA

as low as

$1129

Seattle, US (SEA) - Bloomington, US (BMI)

American Airlines Logo
American Airlines

May 23

SEA
9h 5m
ORD

May 24

BMI
American Airlines Logo
American Airlines

May 30

BMI
10h 37m
DFW

May 31

SEA

as low as

$1129

Seattle, US (SEA) - Bloomington, US (BMI)

American Airlines Logo
American Airlines

May 23

SEA
8h 42m
DFW

May 23

BMI
American Airlines Logo
American Airlines

May 30

BMI
6h 27m
ORD

May 30

SEA

as low as

$1163

Seattle, US (SEA) - Bloomington, US (BMI)

American Airlines Logo
American Airlines

May 23

SEA
9h 5m
ORD

May 24

BMI
American Airlines Logo
American Airlines

May 30

BMI
6h 27m
ORD

May 30

SEA

as low as

$1163

Seattle, US (SEA) - Bloomington, US (BMI)

American Airlines Logo
American Airlines

May 23

SEA
15h 8m
ORD
DFW

May 23

BMI
American Airlines Logo
American Airlines

May 30

BMI
10h 37m
DFW

May 31

SEA

as low as

$1249

Top Deals on Business Class Flights from Seattle to Champaign

Seattle, US (SEA) - Champaign, US (CMI)

American Airlines Logo
American Airlines

May 23

SEA
9h 9m
ORD

May 24

CMI
American Airlines Logo
American Airlines

May 30

CMI
7h 45m
ORD

May 31

SEA

as low as

$1039

Seattle, US (SEA) - Champaign, US (CMI)

American Airlines Logo
American Airlines

May 23

SEA
7h 5m
DFW

May 23

CMI
American Airlines Logo
American Airlines

May 30

CMI
7h 45m
ORD

May 31

SEA

as low as

$1039

Seattle, US (SEA) - Champaign, US (CMI)

American Airlines Logo
American Airlines

May 23

SEA
7h 5m
DFW

May 23

CMI
American Airlines Logo
American Airlines

May 30

CMI
9h 46m
DFW

May 30

SEA

as low as

$1226

Top Deals on Business Class Flights from Seattle to Springfield

Seattle, US (SEA) - Springfield, US (SPI)

American Airlines Logo
American Airlines

May 23

SEA
14h 37m
CLT
ORD

May 23

SPI
American Airlines Logo
American Airlines

May 30

SPI
12h 28m
ORD
DFW

May 31

SEA

as low as

$1203

Good to Know

Essential information to help you plan your flight Business Class from Seattle to Illinois

Cheapest Flight

$682

The lowest price we found in the last two weeks, departing May 24 and returning Jun 1

Airline AA4h 14m ‧ first

Fastest Flights

$946

The fastest flight that we found in the last two weeks, departing May 24 and returning May 31

Airline AS4h 11m ‧ first

Cheapest Flight Round-trip

$682

Cheapest price found in the last 14 days, departing May 24 and returning Jun 1

Airline AA4h 14m ‧ first

Cheapest Layover airport

$14967

The cheapest layover airport to Chicago is currently $14967

Airline UA1 stop ‧ 12h 30m ‧ business

Best Arrival airport

$1129

The best arrival airport to Bloomington is currently $1129

Airline AA1 stop ‧ 9h 5m ‧ first

Best Departure airport

$1129

The best departure airport to Bloomington is currently $1129

Airline AA1 stop ‧ 9h 5m ‧ first

Cheapest Airline

$1129

The cheapest airline to Bloomington is currently $1129

Airline AA1 stop ‧ 9h 5m ‧ first

Frequently Asked Questions

Which cities in Illinois can I fly to directly or with one stop from Seattle?

From Seattle you can fly directly to Chicago O'Hare, the main gateway, or to Midway with connections. Other Illinois cities like Springfield or Peoria typically require one-stop flights through hubs such as Dallas, Denver or Minneapolis. Travelers choose airports based on their destination in Illinois, with O'Hare serving most of Chicago and suburbs, while Midway is closer to downtown.

How long is the flight from Seattle to Illinois?

From Seattle to Chicago O'Hare (ORD), non-stop flights usually last about 4 hours, while one-stop flights typically range from 5½ to 7 hours depending on layover duration. Eastbound flights may be slightly shorter due to prevailing winds.

Are there direct flights from Seattle to Illinois?

There are no non-stop flights from Seattle to Illinois airports. Most travelers connect via hubs such as Denver, Dallas, or Chicago O'Hare, with total travel times typically around 4 to 6 hours including the layover.

Which airlines fly from Seattle to Illinois?

Seattle to Illinois is mainly served by Alaska, Delta, United non-stops, with one-stop options via hubs like Denver, Salt Lake, or Chicago.

When is the cheapest time to fly from Seattle to Illinois?

Flights from Seattle to Illinois tend to be more affordable in late winter and early spring before the summer travel peak, with midweek departures generally cheaper than weekends. Booking a few weeks in advance and flying during off-peak hours can also help save money.

How far in advance should I book flights from Seattle to Illinois?

For Seattle to Illinois, booking 4 to 8 weeks ahead generally offers good options and prices, with earlier booking recommended for peak summer and holiday periods.

What are the most popular areas to visit in Illinois and how does that affect where I should fly?

In Illinois, Chicago is the main gateway for city attractions via Chicago O'Hare International Airport, offering easy access to museums, architecture, and nightlife. For visitors heading to more suburban or natural sites, Midway Airport serves the southwestern suburbs. If you're visiting southern Illinois for outdoor activities or historic sites, plan to fly into St. Louis Lambert Airport, which is nearby and provides access to that region.

Which airports in Illinois are best to fly into from Seattle?

From Seattle to Illinois, Chicago O'Hare International Airport is the busiest hub with the most flight options, ideal for connecting to major cities and regional travel. Chicago Midway Airport offers more budget-friendly options and is convenient for southwestern Illinois. Both airports work well for road trips across the state, with O'Hare serving as the primary gateway for international and domestic flights.

Are overnight or red eye flights available from Seattle to Illinois?

Most flights from Seattle to Illinois airports like Chicago O'Hare or Midway operate during daytime hours, with red eye flights being uncommon due to the relatively short flight duration of around four to five hours. Travelers often prefer daytime flights for convenience and better scheduling.

What is the baggage allowance on flights from Seattle to Illinois?

Baggage allowances from Seattle to Illinois vary by airline and fare class. Basic economy tickets may not include checked bags or may charge extra, while standard economy typically includes one checked bag and a carry-on. Premium cabins generally allow more baggage and additional privileges. Always check with your airline for specific baggage policies.

What cabin and seat options are typical from Seattle to Illinois?

Flights from Seattle to Illinois generally offer Economy with optional extra legroom seats, with domestic-style Business or First class available on some longer or premium services, but lie-flat seats are uncommon on this route.

Are same day changes or standby possible on this route from Seattle to Illinois?

Same day changes or standby options from Seattle to Illinois vary by airline and fare class, with flexible and premium tickets offering the best chances and basic fares being most restrictive.

What time of day is usually cheapest for flights from Seattle to Illinois?

From Seattle to Illinois, flights departing in the late morning or early afternoon on weekdays tend to be less expensive, though fares can vary depending on the day and season.

Flights to Illinois