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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 April , May 2026

23 Apr - 24 May $ 56.00
DEN
Denver
Frontier Airlines
DIRECT
SAN
San Diego
SAN
San Diego
Frontier Airlines
DIRECT
DEN
Denver
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09 Apr - 07 May $ 122.00
DEN
Denver
Frontier Airlines
DIRECT
SAN
San Diego
SAN
San Diego
Frontier Airlines
DIRECT
DEN
Denver
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08 Apr - 05 May $ 223.00
DEN
Denver
Alaska Airlines
DIRECT
SAN
San Diego
SAN
San Diego
Alaska Airlines
DIRECT
DEN
Denver
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Last minute flights from Denver to San Diego

23 Apr - 30 Apr $ 139.00
DEN
Denver
Frontier Airlines
DIRECT
SAN
San Diego
SAN
San Diego
Frontier Airlines
DIRECT
DEN
Denver
Pick dates
09 Apr - 30 Apr $ 164.00
DEN
Denver
Frontier Airlines
DIRECT
SAN
San Diego
SAN
San Diego
Frontier Airlines
1 STOPS
DEN
Denver
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07 Apr - 30 Apr $ 293.00
DEN
Denver
Alaska Airlines
DIRECT
SAN
San Diego
SAN
San Diego
Alaska 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 30m
DEN - SAN
$ 28
Kiwi
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6:15 AM - 6:15 AM
Frontier Airlines
0 Stops
2h 37m
DEN - SAN
$ 94
Kiwi
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2:07 PM - 2:07 PM
Frontier Airlines
0 Stops
2h 29m
DEN - SAN
$ 149
Kiwi
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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.