Cheap Flights from Ontario International Airport to Washington D.C (DCA) Find and Compare the Best Airline Deals | Skyticket

Departure Date

2025/8
Sun	Mon	Tue	Wed	Thu	Fri	Sat
					1Search	2Search
3Search	4Search	5Search	6Search	7Search	8Search	9251
10Search	11Search	12Search	13Search	14Search	15Search	16Search
17Search	18Search	19Search	20Search	21Search	22Search	23Search
24Search	25Search	26Search	27Search	28Search	29Search	30Search
31Search

Select Return Date　　 Change Departure Date

Return Date

2025/8
Sun	Mon	Tue	Wed	Thu	Fri	Sat
					1------	2------
3------	4------	5------	6------	7------	8------	9------
10------	11------	12------	13------	14------	15------	16------
17------	18------	19------	20------	21------	22------	23------
24------	25------	26------	27------	28------	29------	30------
31------

　　Select Departure Date

Currency:US Dollar Loading Searching Fares Updating Fares

Departure Date

―

Return Date

Total Fares（Round-Trip/Economy）: USD /Per Person

* Displayed fare(s) may differ from the actual search result

Ontario－Ronald Reagan Washington National Airport
August Lowest Airfares
USD251

The airfare displayed above is for Delta Air Lines

Set calendar for this month
Ontario－Ronald Reagan Washington National Airport
September Lowest Airfares
USD279

The airfare displayed above is for Delta Air Lines

Set calendar for this month

Ontario－Ronald Reagan Washington National Airport
October Lowest Airfares
USD297

The airfare displayed above is for Delta Air Lines

Set calendar for this month
Ontario－Ronald Reagan Washington National Airport
November Lowest Airfares
USD480

The airfare displayed above is for United Airlines

Set calendar for this month
Ontario－Ronald Reagan Washington National Airport
December Lowest Airfares -----

Ontario－Washington D.C
Estimated Flight Time
5 Hours 38 Minutes
Ontario－Washington D.C
Number of Operating Airlines
4

Operating Airlines for Ontario－Ronald Reagan Washington National Airport Route
American Airlines

Alaska Airlines

Delta Air Lines

United Airlines

Other Destinations from:Ontario

Ontario－Washington D.C(Washington Dulles)
USD283〜
Ontario－Washington D.C(Baltimore-Washington)
USD316〜
Ontario－Chicago(O'Hare)
USD226〜
Ontario－Chicago(Midway)
USD247〜
Ontario－Dallas(Love Field)
USD236〜
Ontario－Dallas(/Fort Worth)
USD239〜
Ontario－San Diego(SAN)
USD428〜
Ontario－Atlanta(Hartsfield-Jackson)
USD141〜
* Fares vary in accordance to seat availability
Other Departures to: Washington D.C

Philadelphia Airport－Washington D.C(Ronald Reagan Washington National)
USD367〜
* Fares vary in accordance to seat availability