Book Cheap Alaska Airlines flight from Ontario (ONT) to Seattle (SEA) from CA $121

Find The Best Day to Book a Cheap Alaska Airlines Flights From Ontario to Seattle

Cheapest Alaska Airlines Flights from Ontario (ONT) to Seattle (SEA)

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were CA $262 round trip and CA $121 one way. Prices and availability subject to change. Additional terms may apply.

Frequently asked questions

Can I catch a flight from ONT to Sea-Tac Airport right now?
Be sure to check out our Covid-19 Travel Advisor to discover if there are any current travel advice reports and quarantine requirements in effect in Seattle - Tacoma Intl. Airport (SEA) when flying in from Ontario Airport.
What terminal is Alaska Airlines at Los Angeles - Ontario Intl. Airport (ONT)?
Flights routinely take off from terminal 2 at Los Angeles - Ontario Intl. Airport (ONT) if you’ve booked a ticket with Alaska Airlines. On your way to SEA? Touch base with your airline (or do some online research) to find out which terminal you’ll be disembarking at.
Are there Alaska Airlines non-stop flights from ONT to SEA?
Direct flights are on offer with Alaska Airlines, which means you can fly from ONT to SEA quickly. Those inspirational travel experiences you’re chasing are one simple flight away.
How long is an Alaska Airlines flight from ONT to SEA?
No unpleasant jet lag, no restless legs — there’s a great deal to love about short-haul flights. If you’re traveling aboard Alaska Airlines from ONT to SEA, the trip will zoom by in roughly 3 hours and 6 minutes.
What type of aircraft does Alaska Airlines fly from ONT to SEA?
The Boeing 737-900 is more often than not used by Alaska Airlines between ONT and SEA. Browse through the aircraft safety card in your seat pocket if you want to learn a bit about it.
How many direct and indirect flights does Alaska Airlines fly from ONT to SEA?
Alaska Airlines operates around 2 flights every day from Los Angeles - Ontario Intl. Airport (ONT) to Sea-Tac Airport.
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 Seattle - Tacoma Intl. Airport (SEA), please visit our Customer Service Portal.
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 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that 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 2021, 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 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Grab a great Alaska Airlines flight from ONT to SEA 

To find a great deal on Alaska Airlines flights with Travelocity, simply enter your origin and destination airports, pick your travel dates, and hit search. From here, you can sort by price, flight duration, and arrival/departure time. You can also filter to find nonstop flights. 

Flying Alaska Airlines Los Angeles to Seattle gives you 4 fights to choose from. With that direct flight time of 38, you’ll be touching down before you know it.  

 

Find cheap flights with Alaska Airlines between Los Angeles and Seattle 

Alaska Airlines has a range of great fares on stacks of flights, and to find the most affordable for you, there are a few tricks you can try. Booking in advance, for example, is a great way to grab a fantastic deal. Also, choose the cheapest month, if you can. One-way flights from Los Angeles to Seattle with Alaska Airlines are May.  

The more flexible you are, the more affordable flights you’re likely to find. Consider one-way flights and connecting flights, as well as standard roundtrip and direct options. Even if you’re flying today, cheap last-minute flights are easy to find by entering your travel dates and hitting search.  

 

Reasons to book your Alaska Airlines flights with Travelocity 

Travelocity makes it easy to book a seat, anywhere in the world. The vast inventory, fast search, and advanced filters put some of the best deals on the planet in one place. Whether you’re traveling on business, with friends, family, or on your own, take your pick from some fantastic options. And with free cancellation and pay later options, you can travel more and worry less.  

Alaska Airlines Airports
Hop on a(n) Alaska Airlines flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
SEAUSASeattle - Tacoma Intl.115
ORDUSAO'Hare Intl.44
LAXUSALos Angeles Intl.24
PDXUSAPortland Intl.23
ANCUSATed Stevens Anchorage Intl.22
SFOUSASan Francisco Intl.21
SANUSASan Diego Intl.18
JNUUSAJuneau Intl.10
SJCUSANorman Y. Mineta San Jose Intl.10
GEGUSASpokane Intl.7

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