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Ontario International Airport to Washington D.C. flight
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Cheap Flights from Ontario International Airport to Washington D.C.

Search for flights from Ontario International Airport to Washington D.C. and check out affordable one-way and round-trip options.

  • One way
  • Round-trip
sortSort: Price (Lowest)
  • Sort: Price (Lowest)
  • Sort: Departure (Earliest)
      • ONT00:59
        14h 8m
        1 stop
        DCA18:07
        Ontario - Washington D.C.|Sat, May 18|Frontier Airlines
        S$ 66S$ 141
        53% OFF
        53% OFF
        S$ 141S$ 66
      • ONT09:05
        23h 58m
        1 stop
        DCA12:03
        Ontario - Washington D.C.|Mon, May 20|Frontier Airlines
        S$ 70S$ 141
        51% OFF
        51% OFF
        S$ 141S$ 70
      • ONT00:59
        18h
        1 stop
        DCA21:59
        Ontario - Washington D.C.|Tue, May 14|Frontier Airlines
        S$ 72S$ 141
        49% OFF
        49% OFF
        S$ 141S$ 72
      • ONT00:59
        8h 1m
        1 stop
        DCA12:00
        Ontario - Washington D.C.|Sun, May 12|Frontier Airlines
        S$ 78
        S$ 78
      • ONT20:56
        18h 11m
        1 stop
        DCA18:07
        Ontario - Washington D.C.|Fri, May 17|Frontier Airlines
        S$ 85
        S$ 85
      • ONT00:49
        8h 20m
        1 stop
        DCA12:09
        Ontario - Washington D.C.|Tue, May 21|Frontier Airlines
        S$ 91
        S$ 91
      • ONT00:59
        8h 4m
        1 stop
        DCA12:03
        Ontario - Washington D.C.|Wed, May 22|Frontier Airlines
        S$ 96
        S$ 96
      • ONT07:26
        7h 35m
        1 stop
        DCA18:01
        Ontario - Washington D.C.|Wed, May 15|Frontier Airlines
        S$ 101
        S$ 101
      • ONT00:59
        8h 1m
        1 stop
        DCA12:00
        Ontario - Washington D.C.|Mon, May 13|Frontier Airlines
        S$ 106
        S$ 106
      • ONT00:59
        8h 4m
        1 stop
        DCA12:03
        Ontario - Washington D.C.|Wed, Jun 19|Frontier Airlines
        S$ 113
        S$ 113
      • ONT13:00
        3h 5m
        Direct
        WAS14:00
        Los Angeles - Washington D.C.|Sat, May 18|Frontier Airlines
        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 Ontario International Airport to Washington D.C.

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

Frontier Airlines
From S$ 66
Delta Air Lines
From S$ 176
Alaska Airlines
From S$ 184
United Airlines
From S$ 207
American Airlines
From S$ 247
Southwest Airlines
From S$ 306
ANA airlines
Find more flights and airlines

Flight Info of Flights from Ontario International Airport to Washington D.C.

Cheapest return ticket price

S$ 253

Cheapest direct flight price

S$ 104

Cheapest month

March

Peak season for travel

August

FAQs for Ontario International Airport to Washington D.C. Flights

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