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Flights from Seattle to Phoenix Starting at £16

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • One way
  • Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Find the best time to fly from Seattle to Phoenix

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Airlines Flying from Seattle to Phoenix

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Frontier Airlines
From £16
Spirit Airlines
From £29
Alaska Airlines
From £42
Delta Air Lines
From £47
American Airlines
From £47
Southwest Airlines
From £73
Sun Country Airlines
From £110
United Airlines
From £262
ANA airlines

Find more flights and airlines

Alternative Routes from Seattle to Phoenix

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Seattle to Phoenix.

  • Cheapest
    Frontier Airlines
    SEA
    09:55
    3h 4m
    Direct
    PHX
    12:59
    Seattle-Tacoma International Airport - Sky Harbor International Airport
    Wed, Apr 17Frontier Airlines
    £16
  • Sun Country Airlines
    SEA
    08:30
    9h 11m
    1 transfer
    AZA
    17:41
    Seattle-Tacoma International Airport - Phoenix-Mesa Gateway Airport
    Sun, Apr 28Sun Country Airlines
    £134
  • Sun Country Airlines
    SEA
    08:30
    9h 11m
    1 transfer
    AZA
    17:41
    Seattle-Tacoma International Airport - Phoenix-Mesa Gateway Airport
    Sun, Apr 28Sun Country Airlines
    £134
    Find More Flights

How do I find the cheapest flights?

Flight Information from Seattle to Phoenix

Cheapest direct flight price

£16

Cheapest return ticket price

£32

Cheapest month

November

Peak season for travel

September