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

Flight details

Average flight time: 3 hours 7 minutes

Departing from: Phoenix Sky Harbor International Airport (PHX)

Arriving at: Seattle-Tacoma International Airport (SEA)


Route information


Nonstop flightsper day


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*Based on DOT published scheduled average Monday-Friday departures between 6/1/20 and 1/4/21, as of 6/1/20.

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

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 when you book with us.

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

2Fare difference may apply.