$110 Cheap Frontier Airlines flights San Diego (SAN) to Seattle (SEA)

View $110 flight on Tue, Sep 8, 2026Opens in a new window

$110 Cheap Frontier Airlines flights San Diego (SAN) to Seattle (SEA)

Prices were available within the past 7 days and start at $110 for one-way flights and $170 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, Apr 21 - Sun, May 3
SAN
San Diego
SEA
Seattle
$170 Roundtrip, found 1 day ago
$170
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, Apr 21 from San Diego to Seattle, returning Sun, May 3, priced at $170 found 1 day ago
Frontier Airlines
Fri, Apr 24 - Sat, May 2
SAN
San Diego
SEA
Seattle
$245 Roundtrip, found 1 day ago
$245
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Fri, Apr 24 from San Diego to Seattle, returning Sat, May 2, priced at $245 found 1 day ago

Find the cheapest month to fly from San Diego (SAN) to Seattle (SEA)

January is typically the cheapest month to fly

From $87 - $231 per traveler.

Travel information

Origin airport
San Diego Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Popular airline
Alaska Airlines
Distance
1681 km
Average flight time
3 hours 8 mins

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