Book your SEA to ONT flights with Expedia and find last-minute Seattle to Ontario airfare. Expedia offers discount airfare on multiple airline carriers that fly direct and indirect routes between SEA and ONT, with new flight deals and promotions almost daily. When you book your next trip from Seattle Tacoma Intl. to Ontario Intl. with Expedia, you can rest assured you’re getting great ticket prices and excellent service from one of the world’s most trusted travel providers.
SEA to ONT Flight Schedule
Browse popular flight destinations from Seattle (SEA), and plan your next exciting trip. Expedia has cheap flights from Seattle on multiple airline carriers, so book your next trip today!
Browse popular flight destinations from Ontario (ONT), and plan your next exciting trip. Expedia has cheap flights from Ontario on multiple airline carriers, so book your next trip today!
SEA to ONT Route Map
Route information for flights from Seattle Tacoma Intl. to Ontario Intl..
Airline carriers and aircraft used on flights from SEA to ONT
|Alaska Airlines, Inc.||Boeing 737-400 pax|
|Alaska Airlines, Inc.||Boeing 737-700 pax|
|American Airlines||Boeing 737 all pax models|