Cheap flights from Ontario to Seattle

Bing travel utilizes over a billion airfares on a daily basis to bring you Price Predictors, and now we're using that data to uncover cheap flights from Ontario to Seattle every day. Note that deals are compiled on yesterday's lowest airfares and can change often.

Featured flight deal from Ontario to Seattle

Lowest fares from Ontario to Seattle

Use our flexible travel graph to find the lowest airfare from Ontario to Seattle. Currently the cheapest flight you can find in the next 30 days from Ontario to Seattle departs on 06/02/2012 and returns 06/05/2012 with a low fare of $228.

View complete flexible search for ONT to SEA (modify trip length and dates)

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