CA $214 Cheap Alaska Airlines fights from St. Louis (STL) to San Diego (SAN)

View CA $214 flight on Tue, Sep. 2, 2025Opens in a new window

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Alaska Airlines flights from St. Louis to San Diego (STL→SAN)

Prices were available within the past 7 days and start at CA $214 for one-way flights and CA $429 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed., Aug. 13 - Wed., Sep. 3
STL
St. Louis
SAN
San Diego
CA $429 Roundtrip, found 5 days ago
CA $429
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed., Aug. 13 from St. Louis to San Diego, returning Wed., Sep. 3, priced at CA $429 found 5 days ago
Alaska Airlines
Thu., Nov. 13 - Sun., Nov. 16
STL
St. Louis
SAN
San Diego
CA $458 Roundtrip, found 1 day ago
CA $458
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu., Nov. 13 from St. Louis to San Diego, returning Sun., Nov. 16, priced at CA $458 found 1 day ago
Alaska Airlines
Thu., Nov. 13 - Sun., Nov. 16
STL
St. Louis
SAN
San Diego
CA $548 Roundtrip, found 1 day ago
CA $548
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu., Nov. 13 from St. Louis to San Diego, returning Sun., Nov. 16, priced at CA $548 found 1 day ago
Flight from St. Louis to San Diego (STL - SAN) route information
Origin airport
Lambert-St. Louis Intl.
Destination airport
San Diego Intl.
Distance
2487 km
Average flight time
3 hours 6 mins
*Available to Expedia members.