Flights from Phoenix (PHX) to Seattle/Tacoma (SEA)

Take a break from the Valley of the Sun and head to the Emerald City! Southwest Airlines® has direct flights from Phoenix Sky Harbor International Airport to Seattle-Tacoma International Airport. Find your flight to Seattle/Tacoma with Southwest® and get ready to pack your bags. Does your upcoming excursion have flexible dates? Check out our Low Fare Calendar and discover the lowest fares we’ve got on each day of the month. Don't forget to explore Southwest Vacations® to find package deals on flights, hotels, rental cars, and more.

Check out Phoenix to Seattle/Tacoma flights and book your trip now!

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Phoenix, AZ to Seattle/Tacoma, WA

departing on 1/16

one-way starting at*

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*Restrictions and exclusions apply. Seats and dates are limited. Select markets. 86 travel days available.

Check out Phoenix to Seattle/Tacoma flights and book yours now!

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Travel Advisory

During the ongoing COVID-19 pandemic, the availability, health and safety procedures, operations, and schedules for local attractions are changing constantly. Please contact attractions directly for hours of operation, potential temperature screenings, and other possible health and safety procedures and restrictions. Visit our Coronavirus Travel Information page for information about potential restrictions on air travel.

Flight details

Average flight time: 3 hours 12 minutes

Departing from: Phoenix Sky Harbor International Airport (PHX)

Arriving at: Seattle-Tacoma International Airport (SEA)


Route information


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Based on DOT published scheduled average flights Monday-Friday between 12/11/2020 and 2/28/2021, as of 12/11/2020.

Explore Seattle/Tacoma.

The Pacific Northwest is calling. Trade the desert of the American Southwest for the shores of the Puget Sound, and get ready to take in the sights. The Seattle/Tacoma area is home to mountains, vast forests of evergreen trees, and, of course, the Pacific Ocean. Go for a hike, or a boat ride, or camp out amongst the stars. There’s no one way to take in the Seattle scenery, flora, and fauna. Consider a tour of Puget Sound, or guide yourself on an exploration of the bays and harbors from Seattle to Tacoma. Spend a day heading to Mount Rainier National Park and climb, hike, bike, or just picnic. Visit the Tacoma Narrows Bridge and Vashon Island at Point Defiance Park. Try to fit each of these locations in on your trip, or plan to come back time and time again.

Hungry for more? You’ll certainly be hungry for food after all that hiking, biking, or climbing! Seattle is a great destination for foodies, thanks to its range of offerings from street food to haute cuisine. Fresh seafood abounds—and if you’re at some famous markets, they also fly! And who could forget the deep, rich coffee heritage of the Emerald City? Grab a cuppa from the landmark outposts of world-famous mud purveyors, or stop into a hole-in-the-wall coffee bar and discover something special.

It’s almost impossible to think about Seattle without conjuring the image of the Space Needle. Make sure to stop by this famous landmark before you depart—it’s recently been remodeled to offer even more special sights and experiences up amongst the Seattle skyline.

Travel tips


Infancy policy

One child over 14 days and under two (2) years of age, not occupying a seat, may be carried free of charge when traveling with an adult (12 years of age or older). Learn more.


Pet policy

Customers flying with a pet are subject to a pet fare. To learn more about traveling with your furry friend, explore the Southwest® pet policy.


Unaccompanied minor

Minors under the age of 18 are not permitted to fly unaccompanied on international flights or any itinerary that includes an international flight. Learn more.


Bags fly free®1

Start packing! Every ticketed Customer’s first two checked bags are free. Learn more.


The Southwest travel experience

At Southwest, we’re aware that a great trip from Phoenix to Seattle/Tacoma is built with more than cheap flights. That’s why we offer services and perks, from booking to boarding, that make your travel experience go smoothly. Find out more about the Southwest® Experience before you book your Phoenix to Seattle/Tacoma flight.

It’s simple and fun to fly with Southwest, no matter which of our destinations you choose. And when you search for your next flight to Seattle/Tacoma, you won’t be hassled by hidden fees—we offer low fares and, as always, bags fly free. That’s our Transfarency® promise. Enroll in our Click 'N Save® emails and stay in the loop about our latest flight deals. Looking for tours, activities, and more hidden gems? Check out Southwest Airlines® Experiences and earn Rapid Rewards® points when you fly with us.

1First and second checked bags. Weight and size limits apply.

2Fare difference may apply.

Questions we hear the most

How long is the flight from Phoenix to Seattle/Tacoma?

The average flight time from Phoenix to Seattle/Tacoma is 3 hours 12 minutes.

How many Southwest flights from Phoenix to Seattle/Tacoma occur daily?

There are 11 flights daily from Phoenix to Seattle/Tacoma on Southwest Airlines.

Does Southwest fly nonstop from Phoenix to Seattle/Tacoma?

Southwest flies nonstop from Phoenix to Seattle/Tacoma once daily.

What day is it cheapest to fly from Phoenix to Seattle/Tacoma?

To find the cheapest day and time to fly Phoenix to Seattle/Tacoma with Southwest, check out our Low Fare Calendar.

Can I rent a car at Seattle-Tacoma International Airport?

You can rent a car at Seattle-Tacoma International Airport—book yours with your flight.

Can I change my flight reservation for my flight from Phoenix to Seattle/Tacoma?

Yes! Flights from Phoenix to Seattle/Tacoma—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.

Where can I find the status of my flight from Phoenix to Seattle/Tacoma?

Check the status of your upcoming Southwest flight here.

Where can I find answers to other questions about flying from Phoenix to Seattle/Tacoma with Southwest?

Check out the Southwest Airlines® FAQs for answers about everything Southwest.