Southwest® flights from Phoenix to Seattle/Tacoma from $46
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Low fares from Phoenix to Seattle/Tacoma
$
Phoenix (PHX)to
Seattle/Tacoma (SEA)
Depart: 01/10/2026
One-way
Basic
From
$46
Seen: 1 hour ago
Phoenix (PHX)to
Seattle/Tacoma (SEA)
Depart: 03/03/2026
One-way
Basic
From
$47
Seen: 7 minutes ago
Phoenix (PHX)to
Seattle/Tacoma (SEA)
Depart: 01/13/2026
One-way
Basic
From
$47
Seen: 45 minutes ago
Phoenix (PHX)to
Seattle/Tacoma (SEA)
Depart: 01/12/2026
One-way
Basic
From
$56
Seen: 48 minutes ago
Phoenix (PHX)to
Seattle/Tacoma (SEA)
Depart: 01/08/2026
One-way
Basic
From
$56
Seen: 10 minutes ago
Phoenix (PHX)to
Seattle/Tacoma (SEA)
Depart: 02/18/2026
One-way
Basic
From
$57
Seen: 1 hour ago
Explore flights from Phoenix to Seattle/Tacoma
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Travel tips for your next Southwest flight
How to board the plane earlier on open seating flights departing on or before January 26, 2026:
Southwest seats are first come, first served based on check-in order. But there are ways to board the plane earlier!
- Purchase EarlyBird Check-In®1 for automatic check-in and a better boarding position.
- Purchase Upgraded Boarding2 to get an A1-A15 boarding position (depending on availability).
- Purchase a Business Select® fare or upgrade to Business Select to get a guaranteed A1-A15 boarding position.
Enjoy movies, sips, and snacks during your flight.
Take advantage of inflight entertainment with free movies4, free live TV5, free texting6, and $8 inflight Internet7.
We also offer free sodas, coffee, and snacks8—learn more about the inflight food and beverage experience.
Make the most of our Rapid Rewards® Program.
Rapid Rewards Members can redeem their points for flights, hotel stays, rental cars, gift cards, and more. And your points never expire!
Flight Details
Departing from:
Sky Harbor International Airport
Arriving at:
Seattle/Tacoma International Airport
Average flight time:
3 hours 4 minutes
Distance:
1107 miles
Route Information
156† Weekly flights
- 3‡ Nonstop flights per day Monday through Friday
- 3‡ Nonstop flights on Saturday
- 3‡ Nonstop flights on Sunday
† Weekly flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025. Note: route may not operate every day of the week.
‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025.
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.
Questions we hear the most
The average flight time from Phoenix to Seattle/Tacoma is 3 hours 4 minutes.
There are 156 weekly flights from Phoenix to Seattle/Tacoma on Southwest Airlines.
Yes, Southwest flies nonstop from Phoenix to Seattle/Tacoma 3 times per day from Monday through Friday.
Yes, Southwest flies nonstop from Phoenix to Seattle/Tacoma 3 times per day on Saturdays and Sundays.
To find the lowest fares by day and time to fly Phoenix to Seattle/Tacoma with Southwest, check out our Low Fare Calendar.
You can rent a car at Seattle/Tacoma International Airport book yours with your flight.
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.
Check the status of your upcoming Southwest flight.
Check out the Southwest Airlines® Help Center for answers about everything Southwest.
Explore Flights from Other Popular Origins
Popular Flights from Phoenix
1EarlyBird Check-In® pricing starts at $15 one-way, and is subject to availability. Pricing may vary based on the popularity and length of each (one-way) flight. Please see optional travel charges for more details.
2Upgraded boarding prices and benefits are per eligible segment. Flights must be within 24 hours of departure to be eligible for upgraded boarding.
3Where available. Available only on WiFi-enabled aircraft. Limited-time offer.
4Due to licensing restrictions, on WiFi-enabled international flights, free live TV and iHeartRadio may not be available for the full duration of flight.
5Texting only allows access to iMessage and WhatsApp (which must be downloaded and activated before connecting to SouthwestWiFi).
6Internet access for $8 per device from takeoff to landing. Price is subject to change. May not be available for the full duration of flight. In order to provide a top-notch Internet experience, we prohibit access to certain high-bandwidth applications and websites. We also prohibit access to certain obscene or offensive content.
7Flights traveling 175 miles or less will have only water available. Complimentary snacks are served on flights over 175 miles. If you’re flying between Hawaii and the continental U.S., you’ll have even more snacks to choose from.