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Cheap flights from St Louis (STL) to San Diego (SAN)

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1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from St Louis (STL) to San Diego (SAN)

How to find the cheapest flight from St Louis (STL) to San Diego (SAN)
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How to find the cheapest flight from St Louis (STL) to San Diego (SAN)
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How to find the cheapest flight from St Louis (STL) to San Diego (SAN)
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Cheap flights from St Louis to San Diego in July , August 2026

28 Jul - 27 Aug $ 277.00
STL
St Louis
Alaska Airlines
1 STOPS
SAN
San Diego
SAN
San Diego
Alaska Airlines
1 STOPS
STL
St Louis
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28 Jul - 25 Aug $ 277.00
STL
St Louis
Alaska Airlines
1 STOPS
SAN
San Diego
SAN
San Diego
Alaska Airlines
1 STOPS
STL
St Louis
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23 Jul - 20 Aug $ 553.00
STL
St Louis
United Airlines
1 STOPS
SAN
San Diego
SAN
San Diego
United Airlines
1 STOPS
STL
St Louis
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Last minute flights from St Louis to San Diego

25 Jul - 31 Jul $ 577.00
STL
St Louis
United Airlines
1 STOPS
SAN
San Diego
SAN
San Diego
United Airlines
1 STOPS
STL
St Louis
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24 Jul - 31 Jul $ 577.00
STL
St Louis
United Airlines
1 STOPS
SAN
San Diego
SAN
San Diego
United Airlines
1 STOPS
STL
St Louis
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28 Jul - 31 Jul $ 918.00
STL
St Louis
Alaska Airlines
1 STOPS
SAN
San Diego
SAN
San Diego
Alaska Airlines
1 STOPS
STL
St Louis
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One-way flights to San Diego from St Louis

8:08 PM - 10:29 PM
Frontier Airlines
1 Stops
5h 43m
STL - SAN
$ 178
Kiwi
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8:08 PM - 7:40 AM
Frontier Airlines
1 Stops
14h 57m
STL - SAN
$ 184
Kiwi
Pick dates
8:08 PM - 10:29 PM
Frontier Airlines
1 Stops
5h 43m
STL - SAN
$ 195
Kiwi
Pick dates

How to find the cheapest flight from St Louis (STL) to San Diego (SAN)

Related info for your journey
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How to find the cheapest flight from St Louis (STL) to San Diego (SAN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from St Louis (STL) to San Diego (SAN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.