$159 Cheap Frontier Airlines flights Baltimore (BWI) to Seattle (SEA)

$159 Cheap Frontier Airlines flights Baltimore (BWI) to Seattle (SEA)

Prices were available within the past 7 days and start at $159 for one-way flights and $249 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Jul 30 - Tue, Aug 5

BWI

Baltimore

SEA

Seattle

$249 Roundtrip, found 11 hours ago

$249

Roundtrip

found 11 hours ago

Select Frontier Airlines flight, departing Wed, Jul 30 from Baltimore to Seattle, returning Tue, Aug 5, priced at $249 found 11 hours ago

Wed, Jul 30 - Tue, Aug 5

BWI

Baltimore

SEA

Seattle

$257 Roundtrip, found 11 hours ago

$257

Roundtrip

found 11 hours ago

Select Frontier Airlines flight, departing Wed, Jul 30 from Baltimore to Seattle, returning Tue, Aug 5, priced at $257 found 11 hours ago

Wed, Jul 30 - Wed, Aug 6

BWI

Baltimore

SEA

Seattle

$318 Roundtrip, found 11 hours ago

$318

Roundtrip

found 11 hours ago

Select Frontier Airlines flight, departing Wed, Jul 30 from Baltimore to Seattle, returning Wed, Aug 6, priced at $318 found 11 hours ago

Wed, Jul 16 - Mon, Jul 28

BWI

Baltimore

SEA

Seattle

$326 Roundtrip, found 4 days ago

$326

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Wed, Jul 16 from Baltimore to Seattle, returning Mon, Jul 28, priced at $326 found 4 days ago

Wed, Jul 16 - Fri, Jul 25

BWI

Baltimore

SEA

Seattle

$331 Roundtrip, found 4 days ago

$331

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Wed, Jul 16 from Baltimore to Seattle, returning Fri, Jul 25, priced at $331 found 4 days ago

Wed, Jul 30 - Mon, Aug 4

BWI

Baltimore

SEA

Seattle

$332 Roundtrip, found 11 hours ago

$332

Roundtrip

found 11 hours ago

Select Frontier Airlines flight, departing Wed, Jul 30 from Baltimore to Seattle, returning Mon, Aug 4, priced at $332 found 11 hours ago

Sun, Jul 27 - Mon, Aug 4

BWI

Baltimore

SEA

Seattle

$339 Roundtrip, found 11 hours ago

$339

Roundtrip

found 11 hours ago

Select Frontier Airlines flight, departing Sun, Jul 27 from Baltimore to Seattle, returning Mon, Aug 4, priced at $339 found 11 hours ago

Wed, Jul 30 - Sat, Aug 9

BWI

Baltimore

SEA

Seattle

$379 Roundtrip, found 11 hours ago

$379

Roundtrip

found 11 hours ago

Select Frontier Airlines flight, departing Wed, Jul 30 from Baltimore to Seattle, returning Sat, Aug 9, priced at $379 found 11 hours ago