$91 Cheap Frontier Airlines flights Seattle (SEA) to San Diego (SAN)

View $91 flight on Mon, May 11, 2026Opens in a new window

$91 Cheap Frontier Airlines flights Seattle (SEA) to San Diego (SAN)

Prices were available within the past 7 days and start at $91 for one-way flights and $208 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Jun 4 - Tue, Jun 16
SEA
Seattle
SAN
San Diego
$208 Roundtrip, found 2 days ago
$208
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Thu, Jun 4 from Seattle to San Diego, returning Tue, Jun 16, priced at $208 found 2 days ago
Frontier Airlines
Fri, Apr 24 - Tue, May 12
SEA
Seattle
SAN
San Diego
$233 Roundtrip, found 9 hours ago
$233
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Fri, Apr 24 from Seattle to San Diego, returning Tue, May 12, priced at $233 found 9 hours ago

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

January is typically the cheapest month to fly

From $87 - $151 per traveler.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
San Diego Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, United
Popular airline
Delta
Distance
1681 km
Average flight time
2 hours 47 mins

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