Cheap Flights from Washington Dulles International Airport to Ontario (ONT) Find and Compare the Best Airline Deals | Skyticket

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2025/4
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2025/4
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Total Fares（Round-Trip/Economy）: USD /Per Person

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

Washington Dulles－Ontario Airport
April Lowest Airfares
USD571

The airfare displayed above is for Delta Air Lines

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Washington Dulles－Ontario Airport
May Lowest Airfares
USD335

The airfare displayed above is for Delta Air Lines

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Washington Dulles－Ontario Airport
June Lowest Airfares
USD375

The airfare displayed above is for United Airlines

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Washington Dulles－Ontario Airport
July Lowest Airfares
USD379

The airfare displayed above is for United Airlines

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Washington Dulles－Ontario Airport
August Lowest Airfares -----

Washington D.C－Ontario
Estimated Flight Time
5 Hours 43 Minutes
Washington D.C－Ontario
Number of Operating Airlines
4

Operating Airlines for Washington Dulles－Ontario Airport Route
American Airlines

Alaska Airlines

Delta Air Lines

United Airlines

Other Destinations from:Washington D.C

Washington Dulles－Philadelphia(PHL)
USD231〜
* Fares vary in accordance to seat availability
Other Departures to: Ontario

Dallas/Fort Worth Airport－Ontario(ONT)
USD449〜
O'Hare Airport－Ontario(ONT)
USD256〜
Hartsfield-Jackson Atlanta Airport－Ontario(ONT)
USD302〜
Baltimore-Washington Airport－Ontario(ONT)
USD363〜
Dallas Love Field Airport－Ontario(ONT)
USD567〜
Ronald Reagan Washington National Airport－Ontario(ONT)
USD279〜
Chicago Midway Airport－Ontario(ONT)
USD263〜
* Fares vary in accordance to seat availability