Flights from Washington-DC to Ontario

Tips and tricks to help you find cheap flights from Washington-DC to Ontario

Favorite airline: Alaska Airlines
The favorite airline for flights from Washington-DC to Ontario is Alaska Airlines.
Alaska Airlines
50 %
American Airlines
27 %
United Airlines
9 %
Favourite connection: via Seattle-Tacoma
Stopover flights on this route are especially popular via Seattle-Tacoma, making up 55 % of bookings.
1 stopover Seattle-Tacoma International Airport, WA
10h 30min, from $430
55 %
1 stopover Dallas-Fort Worth International Airport, T
09h 10min, from $323
22 %
1 stopover Denver International Airport, CO
09h 34min, from $387
10 %
Flight information Washington-DC - Ontario