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Dulles International Airport to Ontario International Airport flight
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Cheap Flights from Dulles International Airport to Ontario International Airport

Search for flights from Washington D.C. to Los Angeles and check out affordable one-way and round-trip options.

  • One way
  • Round-trip
sortSort by: Lowest Price
  • Sort by: Lowest Price
  • Sort by: Earliest Flight
      • IAD07:15
        7h 58m
        1 stop
        ONT12:13
        Washington D.C. - Ontario|Wed, May 8|Delta Air Lines
        $117$147
        20% OFF
        20% OFF
        $147$117
      • IAD07:00
        7h 16m
        1 stop
        ONT11:16
        Washington D.C. - Ontario|Tue, May 21|Delta Air Lines
        $119$147
        19% OFF
        19% OFF
        $147$119
      • IAD22:00
        11h 26m
        1 stop
        ONT06:26
        Washington D.C. - Ontario|Tue, May 14|United Airlines
        $130$147
        12% OFF
        12% OFF
        $147$130
      • IAD08:15
        17h 12m
        2 stops
        ONT22:27
        Washington D.C. - Ontario|Sat, May 18|United Airlines
        $130
        $130
      • IAD07:10
        8h 3m
        1 stop
        ONT12:13
        Washington D.C. - Ontario|Tue, May 7|Delta Air Lines
        $130
        $130
      • IAD07:00
        7h 16m
        1 stop
        ONT11:16
        Washington D.C. - Ontario|Tue, Jun 4|Delta Air Lines
        $133
        $133
      • IAD06:00
        8h 40m
        1 stop
        ONT11:40
        Washington D.C. - Ontario|Sat, May 11|Delta Air Lines
        $134
        $134
      • IAD19:20
        23h 42m
        2 stops
        ONT16:02
        Washington D.C. - Ontario|Fri, May 24|Sun Country Airlines
        $135
        $135
      • IAD07:15
        7h 58m
        1 stop
        ONT12:13
        Washington D.C. - Ontario|Tue, May 14|Delta Air Lines
        $135
        $135
      • IAD06:00
        8h 32m
        1 stop
        ONT11:32
        Washington D.C. - Ontario|Sat, May 4|Delta Air Lines
        $136
        $136
      • IAD13:00
        3h 5m
        Direct
        ONT14:00
        Washington D.C. - Los Angeles|Fri, May 10|Delta Air Lines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Selected Airlines from Dulles International Airport to Ontario International Airport

See which airlines fly from Washington D.C. to Los Angeles. Find the airline that best meets your travel needs by comparing prices and treat yourself to an enjoyable journey.

Delta Air Lines
From $117
United Airlines
From $130
Sun Country Airlines
From $135
Alaska Airlines
From $136
Southwest Airlines
From $169
American Airlines
From $175
ANA airlines
Find more flights and airlines

Find Cheaper Flights from Washington D.C. to Los Angeles. Enjoy nonstop flights with 1 airline

Explore other flights from Washington D.C. to Los Angeles to find the best alternative options.

  • Cheapest
    Frontier Airlines
    DCA
    18:51
    28h 42m
    1 transfer
    LAX
    20:33
    Ronald Reagan Washington National Airport - Los Angeles International Airport
    Mon, May 6Frontier Airlines
    $77
  • Alaska Airlines
    IAD
    18:05
    5h 35m
    Direct
    LAX
    20:40
    Dulles International Airport - Los Angeles International Airport
    Tue, Jun 4Alaska Airlines
    $98
  • Alaska Airlines
    IAD
    18:05
    5h 35m
    Direct
    LAX
    20:40
    Dulles International Airport - Los Angeles International Airport
    Tue, Jun 4Alaska Airlines
    $98
    Find More Flights

Dulles International Airport to Ontario International Airport Flights Info

Flight distance3,604.16km
Cheapest one-way ticket price$116
Cheapest return ticket price$185

FAQs for Dulles International Airport to Ontario International Airport Flights

  • What time does the earliest flight from Washington Dulles International Airport to Ontario International Airport depart?

    The earliest flight departs from Washington Dulles International Airport (IAD) at 06:10 and arrives in Ontario International Airport (ONT) at 10:10.

  • What time does the latest flight from Washington Dulles International Airport to Ontario International Airport depart?

    The latest flight departs from Washington Dulles International Airport (IAD) at 17:40 and arrives in Ontario International Airport (ONT) at 22:05.

  • What is the transportation method from the main airport to downtown in Los Angeles?

    • The distance from Los Angeles International Airport to downtown is about 19km. It takes about 30 minutes by taxi.
    • The distance from Ontario International Airport to downtown is about 59km. It takes about 1 hour 10 minutes by taxi.

  • What's the closest airport to Ontario International Airport (ONT)?

    The closest airport to Ontario International Airport (ONT) is Chino Airport. The distance is around 9km.

  • Which airline operates the most direct flights from Washington Dulles International Airport (IAD) to Ontario International Airport (ONT)?

    Southwest Airlines is a very popular airline operating an average of 112 flights per month.

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