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Flights Fare Calendar Find minimum fare between Seattle - Tacoma Intl. and Los Angeles - Ontario Intl. Click this button to get previous days data Click this button to get next days data $408 $350 $291 $233 $175 $117 $58 $0 23 24 25 26 27 28 29 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F Price is $270 on Alaska Airlines Price is $250 on Alaska Airlines Price is $303 on Alaska Airlines Price is $223 on Delta Price is $270 on Alaska Airlines Price is $166 on Delta Price is $220 on Alaska Airlines Price is $173 on Delta Price is $217 on Alaska Airlines Price is $167 on Alaska Airlines Price is $167 on Alaska Airlines Price is $408 on Alaska Airlines Price is $212 on Southwest Airlines Price is $165 on United Price is $162 on Delta Price is $162 on Delta Price is $172 on Delta Price is $271 on Frontier Airlines Price is $187 on Alaska Airlines Price is $137 on Alaska Airlines Price is $137 on Alaska Airlines Price is $143 on Delta Price is $237 on Alaska Airlines Price is $237 on Alaska Airlines Price is $212 on Alaska Airlines Price is $257 on Alaska Airlines Price is $172 on Delta Price is $170 on Alaska Airlines Price is $190 on Alaska Airlines Price is $237 on Alaska Airlines

Amazing SEA to ONT Flight Deals

The cheapest flights to Los Angeles - Ontario Intl. found within the past 7 days were $132 round trip and $72 one way. Prices and availability subject to change. Additional terms may apply.

Flight Schedule for SEA to ONT

Carrier Flight Depart SEA Arrive ONT Thu
6/24
Fri
6/25
Sat
6/26
Sun
6/27
Mon
6/28
Tue
6/29
Wed
6/30
Stops
DL 3659 07:40 am 10:27 am Check fare Check fare Check fare Check fare Check fare Check fare Check fare 0 stop(s)
AS 537 08:49 am 11:25 am Check fare Check fare Check fare Check fare Check fare Check fare Check fare 0 stop(s)
AS 420 11:26 am 01:59 pm Check fare Check fare Check fare Check fare Check fare Check fare Check fare 0 stop(s)
DL 3680 01:57 pm 04:44 pm Check fare Check fare Check fare Check fare Check fare Check fare Check fare 0 stop(s)
AS 918 03:57 pm 06:31 pm Check fare Check fare Check fare Check fare Check fare Check fare Check fare 0 stop(s)
DL 3563 07:43 pm 10:20 pm Check fare Check fare Check fare Check fare Check fare Check fare Check fare 0 stop(s)
AS 924 07:59 pm 10:33 pm Check fare Check fare Check fare Check fare Check fare Check fare Check fare 0 stop(s)

Best Los Angeles - Ontario Intl. Flight and Hotel Packages

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

FAQs about flights from Seattle - Tacoma Intl. Airport (SEA) to Los Angeles - Ontario Intl. Airport (ONT)

Can I catch a flight from Seattle, WA Airport (SEA-Seattle - Tacoma Intl.) to Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.) right now?

For any current Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.) quarantine requirements and travel advice, go to our Covid-19 Travel Advisor. Check before you book your flight, so you don't get caught up en route.

Are there direct flights from Seattle - Tacoma Intl. Airport (SEA) to ONT?

Your next amazing adventure is on the opposite side of just one flight. You can fly direct from Seattle - Tacoma Intl. Airport (SEA) to ONT with multiple airlines, including Delta and Alaska Airlines.

If I am not able to travel due to COVID-19, can I change my booking to a later date?

For more info about changing your flight to ONT, please visit our Customer Service Portal.

How long is the flight from SEA to ONT?

The journey from SEA to ONT will be a walk in the park, with flights taking a mere 2 hours and 36 minutes all up. With such a quick journey ahead of you, you'll arrive feeling relaxed and ready to enjoy the next leg of your trip.

What is the flight distance from SEA to Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.)?

Traveling 963 mi between Seattle - Tacoma Intl. Airport (SEA) and Seattle - Tacoma Intl. Airport (SEA) calls for a glass of vino and some quality screen time. Sit back, get comfortable and enjoy the journey.

What airlines fly from Seattle, WA Airport (SEA-Seattle - Tacoma Intl.) to Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.)?

If you're looking for direct flights from Seattle - Tacoma Intl. Airport (SEA) to ONT, you have plenty of options. Listed below are the most in-demand airlines that will take you straight to Los Angeles:

  • Delta - (DL) with 130 flights every month
  • Alaska Airlines - (AS) with 54 flights every month
  • Alaska Airlines - (AS) with 54 flights every month
  • Delta - (DL) with 130 flights every month
What is the best day to buy a plane ticket?

This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2020. Wednesday and Friday prices are also good, but you may want to prepare your budget if booking on a Sunday, as data shows the end of the week is when prices are generally at their highest.

What are the cheapest days to fly?

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2020, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

How far in advance can you book a flight?

Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2020 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2 weeks to 2 months prior to their travel dates.

How can I save money on airline tickets?

We'll let you in on a secret...You can save big on flights if you mix and match your airlines and fare types. In fact, travelers who booked flights on Travelocity in 2020 saved nearly 40% when their return flights consisted of two different airlines or fare types.

*According to flight demand on Travelocity.com from January to December 2020. Savings are subject to change based on departure location, date and destination.

Seattle - Tacoma Intl. to Los Angeles - Ontario Intl. Flight FAQ

Traveling FromSeattle - Tacoma Intl.
Traveling ToLos Angeles - Ontario Intl.
Shortest Flight Time2 hours 33 mins
Earliest Departure Time7:40AM PDT
Latest Departure Time7:59PM PDT
Lowest Flight Price$132

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

Popular Flight Routes from Seattle (SEA)

Seattle - Tacoma Intl. to Los Angeles - Ontario Intl. Flight FAQ

Traveling FromSeattle - Tacoma Intl.
Traveling ToLos Angeles - Ontario Intl.
Shortest Flight Time2 hours 33 mins
Earliest Departure Time7:40AM PDT
Latest Departure Time7:59PM PDT
Lowest Flight Price$132

Popular Flight Routes from Ontario (ONT)

Travelers at ONT love to visit these top cities. Roam to the top destinations from Ontario(ONT) today with the cheap prices from Travelocity!

*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.