AZA - SEA

Find cheap flights from Phoenix-Mesa Gateway to Seattle

1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phoenix to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phoenix to Seattle, as well as popular online travel agencies
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Everything you should know

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Booking Insights
Flight Deals

Cheap Flights from Phoenix-Mesa Gateway to Seattle (AZA-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Phoenix-Mesa Gateway 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 flight deals from Phoenix-Mesa Gateway to Seattle

Multiple Airlines Logo
AZA
-
SEA
1123 mimulti-stop
Multiple Airlines Logo
SEA
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AZA
1123 mimulti-stop
Multiple Airlines
Booking Insights

KAYAK's insights & trends for Phoenix-Mesa Gateway to Seattle flights

Get data-powered insights and trends into flights from Phoenix-Mesa Gateway to Seattle to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Phoenix-Mesa Gateway Airport to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Phoenix-Mesa Gateway Airport to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Phoenix-Mesa Gateway Airport to Seattle is April, where tickets cost $0 (return) on average. On the other hand, the most expensive months are March and July, where the average cost of round-trip tickets is $416 and $332 respectively.

Good to know

Low seasonSeptember
Best time to beat the crowds with an average 40% drop in price.
Most popular time to fly and prices are also 33% lower on average.

When to book flights from Phoenix-Mesa Gateway to Seattle

Are your dates flexible? Find out the best times to travel from Phoenix-Mesa Gateway to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Phoenix-Mesa Gateway to Seattle flights

  • Do I need a passport to fly between Phoenix-Mesa Gateway and Seattle?

    No, a passport isn't needed to fly from Phoenix-Mesa Gateway to Seattle. However, local authorities might ask for an official ID.

  • Which aircraft models fly most regularly from Phoenix-Mesa Gateway to Seattle?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Phoenix-Mesa Gateway to Seattle?

    oneworld is the only airline alliance operating flights between Phoenix-Mesa Gateway and Seattle.

  • How does KAYAK find such low prices on flights from Phoenix-Mesa Gateway to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Phoenix-Mesa Gateway to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Phoenix-Mesa Gateway to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Phoenix-Mesa Gateway is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Phoenix-Mesa Gateway to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Phoenix-Mesa Gateway with another airline. Booking your flights between Phoenix-Mesa Gateway and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Phoenix-Mesa Gateway to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Phoenix-Mesa Gateway up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Phoenix-Mesa Gateway to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Phoenix to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Phoenix-Mesa Gateway to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Alaska AirlinesOverall score based on 12418 reviews
7.8Comfort
8.1Boarding
8.5Crew
7.1Food
7.0Entertainment
Airline reviews

90 minute delay boarding the plane, 45 minute delay on the terminal, 2 hours late arriving, currently waiting 45 minutes on the tarmac for a gate so we can BEGIN deboarding. Absolute mess. Definitely will be my last flight with Alaska.

4.0 OkayAnonymous, May 2026
JFK - SEA
Read more Alaska Airlines reviews

90 minute delay boarding the plane, 45 minute delay on the terminal, 2 hours late arriving, currently waiting 45 minutes on the tarmac for a gate so we can BEGIN deboarding. Absolute mess. Definitely will be my last flight with Alaska.

Extremely professional crew there are very friendly and first class. Everything worked well on the plane. Food was to be expected. Drinks were very good. Shout out to Charlie in first class who was an excellent flight attendant.

The plug in for my charger didn’t work and on my return flight back home the passenger in the window seat got up seven times

The boarding pass had no gate published and there are many fewer large boards with arrivals and departures I almost missed my flight trying to find the gate

Everyone was so kind, flight was wonderful, check in and baggage were easy. Thank you guys so much for a great trip

For such a long flight, Tampa to Seattle, was shocked to learn that no food was served. Also, there were no TV monitors to be able to watch a movie.

The staff at the check-in counter was responsive to the long queue and intervened to redirect the traffic: foreigners can't complete check-in without human agents; that is the real line which moves quickly enough. On-boarding and off-boarding were smooth and civilized. Overall the operations were efficient and the experience was pleasant.

Ok, but nothing special. Long flight with no blanket/pillow set.

Flight was delayed by 3 hrs. Forcing missed connection and overnight stay. Terrible.

Made our reservations 6 months ago. When we arrived at the airport we were informed they no longer have assigned seating. We were placed in the last row next to the restrooms. Our seats did not recline. I do not like the fact you are assigning seats. I don’t feel it’s fair. People who make last minute reservations sit in the middle seats. It’s did Southwest now have assigned seating and you assign seats. Even Southwest was more fair than Alaska.

Everything you need to know for your flight from Phoenix-Mesa Gateway to Seattle

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