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Cheap flights from Denver (DEN) to San Diego (SAN)

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0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Denver (DEN) to San Diego (SAN)

How to find the cheapest flight from Denver (DEN) to San Diego (SAN)
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How to find the cheapest flight from Denver (DEN) to San Diego (SAN)
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How to find the cheapest flight from Denver (DEN) to San Diego (SAN)
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Cheap flights from Denver to San Diego in August , September 2026

30 Aug - 16 Sep $ 183.00
DEN
Denver
Frontier Airlines
DIRECT
SAN
San Diego
SAN
San Diego
Frontier Airlines
DIRECT
DEN
Denver
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25 Aug - 09 Sep $ 241.00
DEN
Denver
Frontier Airlines
1 STOPS
SAN
San Diego
SAN
San Diego
Frontier Airlines
DIRECT
DEN
Denver
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26 Aug - 09 Sep $ 260.00
DEN
Denver
Frontier Airlines
DIRECT
SAN
San Diego
SAN
San Diego
Frontier Airlines
DIRECT
DEN
Denver
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Last minute flights from Denver to San Diego

30 Aug - 31 Aug $ 304.00
DEN
Denver
Frontier Airlines
DIRECT
SAN
San Diego
SAN
San Diego
Frontier Airlines
DIRECT
DEN
Denver
Pick dates
25 Aug - 31 Aug $ 331.00
DEN
Denver
Frontier Airlines
1 STOPS
SAN
San Diego
SAN
San Diego
Frontier Airlines
1 STOPS
DEN
Denver
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23 Aug - 31 Aug $ 428.00
DEN
Denver
United Airlines
DIRECT
SAN
San Diego
SAN
San Diego
United Airlines
DIRECT
DEN
Denver
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One-way flights to San Diego from Denver

10:29 PM - 10:29 PM
Frontier Airlines
0 Stops
2h 22m
DEN - SAN
$ 137
Kiwi
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9:45 AM - 1:07 PM
Frontier Airlines
1 Stops
6h 5m
DEN - SAN
$ 179
Kiwi
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10:29 PM - 10:29 PM
Frontier Airlines
0 Stops
2h 22m
DEN - SAN
$ 198
Kiwi
Pick dates

How to find the cheapest flight from Denver (DEN) to San Diego (SAN)

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