$72 Cheap Frontier Airlines flights Phoenix (PHX) to Seattle (SEA)

$72 Cheap Frontier Airlines flights Phoenix (PHX) to Seattle (SEA)

Prices were available within the past 7 days and start at $72 for one-way flights and $142 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Sep 22 - Thu, Sep 25

PHX

Phoenix

SEA

Seattle

$142 Roundtrip, found 5 days ago

$142

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Mon, Sep 22 from Phoenix to Seattle, returning Thu, Sep 25, priced at $142 found 5 days ago

Thu, Sep 25 - Sun, Sep 28

PHX

Phoenix

SEA

Seattle

$152 Roundtrip, found 4 days ago

$152

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Thu, Sep 25 from Phoenix to Seattle, returning Sun, Sep 28, priced at $152 found 4 days ago

Thu, Sep 4 - Wed, Sep 10

PHX

Phoenix

SEA

Seattle

$159 Roundtrip, found 5 days ago

$159

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Thu, Sep 4 from Phoenix to Seattle, returning Wed, Sep 10, priced at $159 found 5 days ago

Sun, Aug 31 - Sun, Sep 7

PHX

Phoenix

SEA

Seattle

$160 Roundtrip, found 5 days ago

$160

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sun, Aug 31 from Phoenix to Seattle, returning Sun, Sep 7, priced at $160 found 5 days ago

Sat, Dec 13 - Sat, Jan 3

PHX

Phoenix

SEA

Seattle

$171 Roundtrip, found 5 hours ago

$171

Roundtrip

found 5 hours ago

Select Frontier Airlines flight, departing Sat, Dec 13 from Phoenix to Seattle, returning Sat, Jan 3, priced at $171 found 5 hours ago

Sat, Sep 27 - Mon, Sep 29

PHX

Phoenix

SEA

Seattle

$171 Roundtrip, found 5 days ago

$171

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sat, Sep 27 from Phoenix to Seattle, returning Mon, Sep 29, priced at $171 found 5 days ago