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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 January , February 2026

28 Jan - 25 Feb $ 156.00
STL
St Louis
Frontier Airlines
1 STOPS
SAN
San Diego
SAN
San Diego
Frontier Airlines
1 STOPS
STL
St Louis
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22 Jan - 04 Feb $ 441.00
STL
St Louis
Alaska Airlines
1 STOPS
SAN
San Diego
SAN
San Diego
Alaska Airlines
1 STOPS
STL
St Louis
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13 Jan - 07 Feb $ 713.00
STL
St Louis
Alaska Airlines
1 STOPS
SAN
San Diego
SAN
San Diego
Alaska Airlines
1 STOPS
STL
St Louis
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Last minute flights from St Louis to San Diego

28 Jan - 01 Feb $ 234.00
STL
St Louis
Frontier Airlines
1 STOPS
SAN
San Diego
SAN
San Diego
Frontier Airlines
2 STOPS
STL
St Louis
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22 Jan - 31 Jan $ 593.00
STL
St Louis
Alaska Airlines
1 STOPS
SAN
San Diego
SAN
San Diego
Alaska Airlines
1 STOPS
STL
St Louis
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13 Jan - 31 Jan $ 681.00
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

3:46 PM - 9:44 PM
Frontier Airlines
1 Stops
9h 45m
STL - SAN
$ 103
Kiwi
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2:50 PM - 6:10 PM
Alaska Airlines
1 Stops
8h 8m
STL - SAN
$ 226
Kiwi
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8:45 AM - 11:24 AM
United Airlines
1 Stops
6h 14m
STL - SAN
$ 294
Kiwi
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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.