ONT to SEA (Ontario to Seattle) Flights

Last Minute Flights from ONT to SEA

Price found within the past 7 days for the specified period. Click for updated prices.

OriginDestinationTravel DatesFlights From*
ONTSeattleMay 16 to May 18$245
*Prices include taxes and fees

Cheapest ONT to SEA Flights

Price found within the past 7 days for the specified period. Click for updated prices.

OriginDestinationTravel DatesFlights From*
ONTSeattleJune 4 to June 10$96
ONTSeattleOctober 29 to November 5$153
ONTEverettJune 13 to June 16$170
ONTSeattleAugust 30 to August 30$171
*Prices include taxes and fees
ONT to SEA Flight Details
Origin airport
Los Angeles - Ontario Intl.
Origin airport IATA code
ONT
Destination airport
Seattle - Tacoma Intl.
Destination airport IATA code
SEA
Distance
956 mi

Ontario to Seattle Flights

Whether it’s for an obligation or the sake of your sanity, sometimes you need to get away. Maybe you need flights from Ontario to Seattle to attend your cousin’s wedding, to pitch a business idea to your boss, or simply treat yourself to a mini vacation. Regardless of the reasons behind packing your bags and needing to find our cheapest flights from ONT to SEA, we’ve got you covered here at Flights.com.

We present you with some of the most affordable deals on airfare, so stop that Google flights search. We want you to spend less on your flight from Ontario to Seattle, so you can spend more during your getaway. With Flights.com, you’ll find it simple to land airline tickets with itineraries matching your travel schedule. What’s more, we provide you with all the information you need to confidently make reservations on your family, business, or personal trip.