SEA

Find cheap Alaska Airlines flights to Seattle from $54

1 adult
1 adult, Economy, 0 bags

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Flight Deals

Cheap Alaska Airlines Flight Deals to Seattle

 
Here are some of the best deals found on KAYAK recently from Alaska Airlines to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip Alaska Airlines flight deals to Seattle

Tue, Jan 27 - Tue, Feb 3
Alaska Airlines Logo
7:00 am - 9:11 am
DEN
-
SEA
3h 11mnonstop
Alaska Airlines Logo
8:55 am - 12:38 pm
SEA
-
DEN
2h 43mnonstop
$108Alaska Airlines
Sat, Jan 24 - Sat, Jan 24
Alaska Airlines Logo
7:00 am - 9:11 am
DEN
-
SEA
3h 11mnonstop
Alaska Airlines Logo
12:30 pm - 4:13 pm
SEA
-
DEN
2h 43mnonstop
$111Alaska Airlines
Wed, Jan 28 - Sat, Jan 31
Alaska Airlines Logo
7:00 am - 9:11 am
DEN
-
SEA
3h 11mnonstop
Alaska Airlines Logo
8:55 am - 12:38 pm
SEA
-
DEN
2h 43mnonstop
$113Alaska Airlines
Fri, Jan 23 - Sat, Jan 24
Alaska Airlines Logo
1:37 pm - 3:46 pm
DEN
-
SEA
3h 09mnonstop
Alaska Airlines Logo
8:55 am - 12:38 pm
SEA
-
DEN
2h 43mnonstop
$116Alaska Airlines
Sun, Jan 11 - Mon, Jan 12
Alaska Airlines Logo
7:00 am - 9:11 am
DEN
-
SEA
3h 11mnonstop
Alaska Airlines Logo
7:54 pm - 11:35 pm
SEA
-
DEN
2h 41mnonstop
$117Alaska Airlines
Fri, Feb 6 - Mon, Feb 9
Alaska Airlines Logo
11:49 am - 6:43 pm
DEN
-
SEA
7h 54m1 stop
Alaska Airlines Logo
7:54 pm - 11:35 pm
SEA
-
DEN
2h 41mnonstop
$126Alaska Airlines
Tue, Jan 6 - Sat, Jan 10
Alaska Airlines Logo
11:31 am - 4:01 pm
DEN
-
SEA
5h 30m1 stop
Alaska Airlines Logo
7:54 pm - 11:35 pm
SEA
-
DEN
2h 41mnonstop
$127Alaska Airlines
Fri, Feb 13 - Sat, Feb 21
Alaska Airlines Logo
8:42 am - 11:03 am
SFO
-
SEA
2h 21mnonstop
Alaska Airlines Logo
8:41 pm - 10:56 pm
SEA
-
SFO
2h 15mnonstop
$132Alaska Airlines
Mon, Jan 5 - Mon, Jan 12
Alaska Airlines Logo
8:46 pm - 11:04 pm
SFO
-
SEA
2h 18mnonstop
Alaska Airlines Logo
8:25 am - 12:23 pm
SEA
-
SFO
3h 58m1 stop
$133Alaska Airlines
Wed, Jan 28 - Wed, Feb 4
Alaska Airlines Logo
2:58 pm - 6:43 pm
SFO
-
SEA
3h 45m1 stop
Alaska Airlines Logo
5:59 pm - 8:12 pm
SEA
-
SFO
2h 13mnonstop
$134Alaska Airlines
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$54
Average price round-trip$376
Good deal one-way$657
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 16% increase in price.
Flight from Denver to Seattle
(avg. price over the last 2 weeks)
or less

When to book flights with Alaska Airlines to Seattle

Average price per month
Flight prices as travel date approaches

FAQs for flying to Seattle with Alaska Airlines

  • Is Alaska Airlines cheaper than other airlines flying to Seattle?

    With an average return price of $476, Alaska Airlines is cheaper than United Airlines when it comes to flights to Seattle. However, the cheapest airline flying to Seattle is Delta, with an average return price of $419.

  • Which other airlines fly to Seattle?

    Along with Alaska Airlines, you can also fly to Seattle with Delta, American Airlines, United Airlines and Southwest.

  • How much is a flight to Seattle with Alaska Airlines?

    On average, Alaska Airlines flights to Seattle cost $311 for one-way and $476 return.

  • Which airport do Alaska Airlines flights to Seattle fly into?

    You’ll fly into Seattle/Tacoma Airport when flying to Seattle with Alaska Airlines.

  • Are there any other airlines in oneworld that fly to Seattle?

    The only other oneworld airline flying to Seattle is American Airlines.

Top tips for your flights to Seattle with Alaska Airlines

  • Looking to fly from the United States to Seattle with Alaska Airlines? 25% of our users found flights for the following prices or less: From San Luis Obispo $178 one-way, $287 round-trip; from Baltimore $232 one-way, $372 round-trip; from San Antonio $248 one-way, $449 round-trip.
  • The cheapest flight to Seattle with Alaska Airlines found on KAYAK in the last 2 weeks departed from Great Falls and cost $83.
  • If you’re intending to fly with Alaska Airlines, book your flight to Seattle at least 2 weeks before departure to ensure a below-average price.
  • High season for flights to Seattle with Alaska Airlines is July and prices are highest at this time. The cheapest month to fly is January.

Alaska Airlines customer reviews

8.0
Very good10,000 verified ratings
8.1Boarding
7.0Entertainment
7.1Food
7.8Comfort
8.5Crew
Pros +
  • Crew was good. (in 1348 reviews)
Cons -
  • Full flight amidst this pandemic? (in 1480 reviews)
Show reviews that mention
Traveler rating:
Sort by:
M
10.0 Wonderful
It was cozy 😊
J
8.0 Very good
I liked that I made it onto the flight rather than “missing” the connection. We left PDX early in the morning along with half of Portland arriving at about the same time as we did- 2 hours prior to our flight leaving. The layover was for less than an hour and we were concerned that we would not make the connection, but as it turns out, the flight leaving LAX was even more delayed in departure due to needing some maintenance repair for the a/c of the plane. As for the food- it seems not so very nice that you are not feeding people and offering complementary alcohol on the international flights any more.
A
10.0 Wonderful
I was standing in line to use the restroom. A First Class passenger wanted to use the restroom after me, but Jaques made me wait on Flight 3418 from BOI to SJC on December 12, 2025. I felt this was inappropriate and rude.
A
4.0 Mediocre
The flight was fine. The connecting flight was a nightmare. Gate change without text or email notification was super frustrating and I ended up missing my connecting flight. Return flight was delayed and had I not quadruple checked flight time, gate and refreshed the Alaska Airlines app every 5 minutes, I would have taken a flight that would not arrive in time for my connecting flight. Ended up flying Delta home.
D
10.0 Wonderful
Short trip from Honolulu to Kauai. Not a major issue. Only concern was the drop off of the luggage for departure. Only one person handling all of the passengers. She was busting her butt.
D
10.0 Wonderful
There was no food or entertainment so quit asking about that! Everything else was fine.
D
8.0 Very good
There was no food or entertainment. I was in the middle seat which was uncomfortable. The flight and crew were fine.
A
10.0 Wonderful
Still not loving the inflight entertainment
A
8.0 Very good
Excellent service, my kids thoroughly enjoyed the picnic pack
A
8.0 Very good
Service was excellent and the fact that I didn’t have to request to sit next to my kids when there were no seats next to each other was amazing. Love how Alaska anticipated the seat arrangements. One feature that would take the flight from good to amazing would be to have a screen available with headphones with games and movies, but the kids loved the little boxes and were entertaining with the game—it also helped them get away from too much screen time.
Read more about Alaska Airlines

Everything you need to know for your flight to Seattle

Other airlines flying to Seattle

Flight deals from the most popular airlines with KAYAK users flying the route
Frontier flights to Seattle
Delta flights to Seattle
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Southwest flights to Seattle
American Airlines flights to Seattle