Cheap Flights From Sky Harbor Intl. (PHX) To Seattle - Tacoma Intl. (SEA)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Find The Best Dates To Fly

Cheapest Flights from Phoenix (PHX) to Seattle (SEA)

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were CA $164 round trip and CA $68 one way. Prices and availability subject to change. Additional terms may apply.

Thu., 13 Feb. - Wed., 19 Feb.
PHX
Phoenix
SEA
Seattle
CA $164 Roundtrip, found 2 days ago
CA $164
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu., 13 Feb. from Phoenix to Seattle, returning Wed., 19 Feb., priced at CA $164 found 2 days ago
Sat., 15 Feb. - Sat., 22 Feb.
PHX
Phoenix
PAE
Seattle
CA $193 Roundtrip, found 6 days ago
CA $193
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Sat., 15 Feb. from Phoenix to Seattle, returning Sat., 22 Feb., priced at CA $193 found 6 days ago
Thu., 13 Feb. - Wed., 19 Feb.
PHX
Phoenix
SEA
Seattle
CA $203 Roundtrip, found 2 days ago
CA $203
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu., 13 Feb. from Phoenix to Seattle, returning Wed., 19 Feb., priced at CA $203 found 2 days ago
Thu., 13 Feb. - Wed., 19 Feb.
PHX
Phoenix
SEA
Seattle
CA $204 Roundtrip, found 2 days ago
CA $204
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu., 13 Feb. from Phoenix to Seattle, returning Wed., 19 Feb., priced at CA $204 found 2 days ago
Fri., 21 Feb. - Sat., 22 Feb.
PHX
Phoenix
SEA
Seattle
CA $222 Roundtrip, found 6 days ago
CA $222
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Fri., 21 Feb. from Phoenix to Seattle, returning Sat., 22 Feb., priced at CA $222 found 6 days ago
Thu., 13 Feb. - Wed., 19 Feb.
PHX
Phoenix
PAE
Seattle
CA $232 Roundtrip, found 2 days ago
CA $232
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu., 13 Feb. from Phoenix to Seattle, returning Wed., 19 Feb., priced at CA $232 found 2 days ago
Thu., 13 Feb. - Wed., 19 Feb.
PHX
Phoenix
PAE
Seattle
CA $233 Roundtrip, found 2 days ago
CA $233
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu., 13 Feb. from Phoenix to Seattle, returning Wed., 19 Feb., priced at CA $233 found 2 days ago
Thu., 27 Feb. - Sun., 2 Mar.
PHX
Phoenix
SEA
Seattle
CA $234 Roundtrip, found 4 days ago
CA $234
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Thu., 27 Feb. from Phoenix to Seattle, returning Sun., 2 Mar., priced at CA $234 found 4 days ago
Thu., 27 Feb. - Sun., 2 Mar.
PHX
Phoenix
SEA
Seattle
CA $235 Roundtrip, found 4 days ago
CA $235
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Thu., 27 Feb. from Phoenix to Seattle, returning Sun., 2 Mar., priced at CA $235 found 4 days ago
Thu., 13 Feb. - Wed., 19 Feb.
PHX
Phoenix
SEA
Seattle
CA $247 Roundtrip, found 2 days ago
CA $247
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu., 13 Feb. from Phoenix to Seattle, returning Wed., 19 Feb., priced at CA $247 found 2 days ago

Frequently asked questions

Are there direct flights from PHX to Seattle - Tacoma Intl. Airport (SEA)?
If you want to travel from PHX to Sea-Tac Airport as quickly as possible, you’ll be happy to know multiple airlines operate direct flights. Pick your preferred seat with Alaska Airlines or Southwest Airlines.
What airlines fly from Phoenix Sky Harbor Airport to SEA?
If you’d prefer to fly direct from Sky Harbor Intl. Airport (PHX) to Seattle - Tacoma Intl. Airport (SEA), you’re not short on choice. We’ve listed some of the most in-demand airlines that advertise nonstop services on this route:

  • Alaska Airlines - (AS) with 230 flights every month
  • Southwest Airlines - (WN) with 126 flights every month
  • Delta - (DL) with 121 flights every month
  • American Airlines - (AA) with 91 flights every month

What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you’re looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you’re browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here’s the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.