Cheap Frontier Airlines flights Missoula (MSO) to Seattle (SEA)

Cheap Frontier Airlines flights Missoula (MSO) to Seattle (SEA)

Prices were available within the past 7 days and start at for one-way flights and $312 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Jul 18 - Thu, Jul 24

MSO

Missoula

SEA

Seattle

$312 Roundtrip, found 19 hours ago

$312

Roundtrip

found 19 hours ago

Select Frontier Airlines flight, departing Fri, Jul 18 from Missoula to Seattle, returning Thu, Jul 24, priced at $312 found 19 hours ago

Fri, Jul 18 - Sun, Jul 20

MSO

Missoula

SEA

Seattle

$331 Roundtrip, found 19 hours ago

$331

Roundtrip

found 19 hours ago

Select Frontier Airlines flight, departing Fri, Jul 18 from Missoula to Seattle, returning Sun, Jul 20, priced at $331 found 19 hours ago

Fri, Jul 18 - Sun, Jul 27

MSO

Missoula

SEA

Seattle

$385 Roundtrip, found 19 hours ago

$385

Roundtrip

found 19 hours ago

Select Frontier Airlines flight, departing Fri, Jul 18 from Missoula to Seattle, returning Sun, Jul 27, priced at $385 found 19 hours ago

Mon, Jul 21 - Thu, Jul 24

MSO

Missoula

SEA

Seattle

$458 Roundtrip, found 19 hours ago

$458

Roundtrip

found 19 hours ago

Select Frontier Airlines flight, departing Mon, Jul 21 from Missoula to Seattle, returning Thu, Jul 24, priced at $458 found 19 hours ago