background

Flight Deals from Baltimore to Ontario International Airport from $132

Bundle + Save

Bundle + Save

Top flight deals from leading airlines:

AS LogoUA LogoQR LogoSQ LogoNH LogoEK LogoJL Logo

... and +100s more

Incredible Deals

Save up to 50% on select flights with Priceline

Bundle & Save

Save an average of $240 per person when bundling your flight and hotel together with Priceline

Best Price Guarantee

If a VIP member finds a better price elsewhere, we'll refund up to 200% of the difference

Help 24/7

We’re always here for you - reach us 24 hours a day, 7 days a week

Stops

  • Up to 1 stop
    $257

Airlines

  • Alaska Airlines
    $482
  • United Airlines
    $257

Cabin Class

  • Economy
    $257

Departure Airports

  • Baltimore/Washington International Thurgood Marshall Airport
    $257
  • Reagan Washington National Airport
    $482
  • Washington Dulles Airport
    $257

Arrival Airports

  • Bob Hope Airport
    $257
  • Los Angeles International Airport
    $482
  • Ontario International Airport
    $257

Layover Airports

  • San Francisco International Airport
    $257
  • Seattle Tacoma International Airport
    $482

Best Price. GUARANTEED.

Exclusively for Priceline Members
Tired of searching? Book now!
We'll refund the difference if you find a lower price.

United Airlines Logo
United Airlines

04/23/26

BWI
9h 15m
SFO

04/23/26

ONT
United Airlines Logo
United Airlines

05/14/26

BUR
9h 11m
SFO

05/15/26

IAD
$257
Alaska Airlines Logo
Alaska Airlines

04/22/26

BWI
10h 28m
SEA

04/22/26

ONT
Alaska Airlines Logo
Alaska Airlines

05/02/26

LAX
5h 8m
Direct

05/02/26

DCA
$482

Top Deals on flights from Baltimore to Ontario International Airport

Baltimore, US (BWI) - Los Angeles, US (LAX)

 Logo

May 20

BWI
16h 51m
IAH

May 21

ONT

as low as

$132

Baltimore, US (BWI) - Los Angeles, US (LAX)

United Airlines Logo
United Airlines

May 4

BWI
9h 17m
SFO

May 4

ONT

as low as

$134

Baltimore, US (BWI) - Los Angeles, US (LAX)

 Logo

May 20

BWI
7h 25m
DAL

May 20

ONT

as low as

$192

Good to Know

Essential information to help you plan your flight from Baltimore to Ontario International Airport

Cheapest Flight

$132

The lowest price we found in the last two weeks, departing May 20 and returning May 21

Airline F91 stop ‧ 16h 51m ‧ economy

Fastest Flights

$192

The fastest flight that we found in the last two weeks, departing May 20 and returning May 20

Airline WN1 stop ‧ 7h 25m ‧ economy

Cheapest Flight Round-trip

$257

Cheapest price found in the last 14 days, departing Apr 23 and returning May 15

Airline UA1 stop ‧ 9h 15m ‧ economy

Cheapest Flight One-way

$132

Cheapest price found in the last 14 days, departing May 20

Airline F91 stop ‧ 16h 51m ‧ economy

Cheapest Layover airport

$132

The cheapest layover airport to Los Angeles is currently $132

Airline F91 stop ‧ 16h 51m ‧ economy

Best Arrival airport

$132

The best arrival airport to Los Angeles is currently $132

Airline F91 stop ‧ 16h 51m ‧ economy

Best Departure airport

$132

The best departure airport to Los Angeles is currently $132

Airline F91 stop ‧ 16h 51m ‧ economy

Cheapest Airline

$132

The cheapest airline to Los Angeles is currently $132

Airline F91 stop ‧ 16h 51m ‧ economy

Fly from Baltimore to Los Angeles during early September for lower fares and avoid mid-December for the highest prices.

If you're planning to fly from Baltimore to Los Angeles, it's important to consider seasonal price variations. Expect higher fares, peaking around mid-December to late December with significant spikes, notably the highest cost on December 25. You'll also see elevated prices from mid-March to early April and from late June to early July, marking the high season. Conversely, the best time to secure lower fares is in early September when prices drop to their lowest, with another low period around late January. Price ranges can vary greatly, with lows below $250 and highs nearing $450.

Book your flight from Baltimore to Los Angeles 48 to 58 days in advance for the best prices, avoiding last-minute purchases to save significantly.

If you're planning to travel from Baltimore to Los Angeles, it's best to book your flight between 48 to 58 days before departure, as prices are lowest at around 49 days, ranging from $187. Avoid booking too early, as prices may spike to $431. Be cautious, as prices rise quickly after 46 days out, potentially reaching $516 if booked last minute within 16 days. To save on your trip, secure your tickets well in advance, ideally not waiting until you're within 16 days of departure.

Flights to Los Angeles