$84 Cheap Flights from Seattle to Ontario

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Find The Best Dates To Fly from Seattle - Tacoma Intl. to Los Angeles - Ontario Intl.

Amazing SEA to ONT Flight Deals

The cheapest flights to Los Angeles - Ontario Intl. found within the past 7 days were $138 round trip and $84 one way. Prices and availability subject to change. Additional terms may apply.

Flight Schedule for SEA to ONT

CarrierFlightDepart SEAArrive ONTFri
8/19
Sat
8/20
Sun
8/21
Mon
8/22
Tue
8/23
Wed
8/24
Thu
8/25
Stops
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DL365908:35 am11:21 amCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
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DL368002:00 pm04:53 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
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AS42002:24 pm04:59 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
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DL390707:54 pm10:39 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
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AS92408:30 pm11:05 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
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Best Los Angeles - Ontario Intl. Flight and Hotel Packages

Los Angeles - Ontario Intl. flight + hotel packages - economy flights

Hampton Inn & Suites Ontario
Element Ontario Rancho Cucamonga
Hotel Seville
Hampton Inn Riverside Downtown
Residence Inn Ontario Airport
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Frequently asked questions

 

Traveling From Seattle - Tacoma Intl.
Traveling To Los Angeles - Ontario Intl.
Shortest Flight Time 2 hours 34 mins
Earliest Departure Time 6:25AM PDT
Latest Departure Time 8:30PM PDT
Lowest Flight Price $138

Route Info

Flight path for flights from Seattle-Tacoma International Airport to LA/Ontario International Airport.

Distance:
962.00 miles

Airline carriers and aircraft used on flights from SEA to ONT

Airline Carrier
Aircraft
Alaska Airlines
Canadair Regional Jet
Alaska Airlines
Canadair Regional Jet 700

Discover our best flights from Seattle SEA to Ontario ONT. 

With 17 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times. 

 

Find our best return flights from Seattle SEA to Ontario ONT at the right price  

Airfares to Ontario ONT from Seattle SEA currently cost between $138 and $183. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way flights from Seattle SEA to Ontario ONT 

If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from Seattle SEA to Ontario ONT on Travelocity starting at $84. Prices and availability subject to change. Additional terms may apply. 

 

Get to Ontario ONT from Seattle SEA quicker with direct flights. 

Get to Ontario faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to ONT from SEA to take around 2 hour(s) 34 min(s).  

 

Find our cheapest airfares for flights from Seattle SEA to Ontario ONT

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to ONT from SEA. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.  

 

Get our best airfare deals for your flight from Seattle SEA to Ontario ONT today 

If you’re flexible about when you travel, November is usually the cheapest month to fly from Seattle SEA to Ontario ONT. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first. 

 

Book flexible airline tickets for flights to Ontario ONT from Seattle SEA 

Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to ONT from SEA have this option.  

 

Travel with confidence when you book flights to Ontario ONT from Seattle SEA with Travelocity 

We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving. 

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.