$120 Cheap Frontier Airlines flights Sioux Falls (FSD) to Seattle (SEA)

$120 Cheap Frontier Airlines flights Sioux Falls (FSD) to Seattle (SEA)

Prices were available within the past 7 days and start at $120 for one-way flights and $248 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Jun 2 - Mon, Jun 9

FSD

Sioux Falls

SEA

Seattle

$248 Roundtrip, found 1 day ago

$248

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Jun 2 from Sioux Falls to Seattle, returning Mon, Jun 9, priced at $248 found 1 day ago

Sun, Jun 1 - Fri, Jun 6

FSD

Sioux Falls

SEA

Seattle

$268 Roundtrip, found 1 day ago

$268

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Jun 1 from Sioux Falls to Seattle, returning Fri, Jun 6, priced at $268 found 1 day ago

Mon, Jun 2 - Sun, Jun 8

FSD

Sioux Falls

SEA

Seattle

$300 Roundtrip, found 1 day ago

$300

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Jun 2 from Sioux Falls to Seattle, returning Sun, Jun 8, priced at $300 found 1 day ago

Mon, Jun 2 - Thu, Jun 12

FSD

Sioux Falls

SEA

Seattle

$301 Roundtrip, found 1 day ago

$301

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Jun 2 from Sioux Falls to Seattle, returning Thu, Jun 12, priced at $301 found 1 day ago

Sun, Jun 1 - Sun, Jun 8

FSD

Sioux Falls

SEA

Seattle

$320 Roundtrip, found 1 day ago

$320

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Jun 1 from Sioux Falls to Seattle, returning Sun, Jun 8, priced at $320 found 1 day ago

Sun, Jun 1 - Thu, Jun 12

FSD

Sioux Falls

SEA

Seattle

$321 Roundtrip, found 1 day ago

$321

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Jun 1 from Sioux Falls to Seattle, returning Thu, Jun 12, priced at $321 found 1 day ago

Mon, Jun 2 - Fri, Jun 13

FSD

Sioux Falls

SEA

Seattle

$351 Roundtrip, found 1 day ago

$351

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Jun 2 from Sioux Falls to Seattle, returning Fri, Jun 13, priced at $351 found 1 day ago

Sun, Jun 1 - Fri, Jun 13

FSD

Sioux Falls

SEA

Seattle

$371 Roundtrip, found 1 day ago

$371

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Jun 1 from Sioux Falls to Seattle, returning Fri, Jun 13, priced at $371 found 1 day ago

Mon, Jun 2 - Mon, Jun 9

FSD

Sioux Falls

SEA

Seattle

$407 Roundtrip, found 1 day ago

$407

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Jun 2 from Sioux Falls to Seattle, returning Mon, Jun 9, priced at $407 found 1 day ago