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

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

How to find the cheapest flight from San Diego (SAN) to Denver (DEN)
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How to find the cheapest flight from San Diego (SAN) to Denver (DEN)
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How to find the cheapest flight from San Diego (SAN) to Denver (DEN)
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Cheap flights from San Diego to Denver in December 2025 , January 2026

24 Dec - 10 Jan $ 117.00
SAN
San Diego
Frontier Airlines
1 STOPS
DEN
Denver
DEN
Denver
Frontier Airlines
DIRECT
SAN
San Diego
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31 Dec - 09 Jan $ 168.00
SAN
San Diego
Frontier Airlines
DIRECT
DEN
Denver
DEN
Denver
Frontier Airlines
DIRECT
SAN
San Diego
Pick dates
16 Dec - 09 Jan $ 317.00
SAN
San Diego
Frontier Airlines
DIRECT
DEN
Denver
DEN
Denver
Frontier Airlines
DIRECT
SAN
San Diego
Pick dates

Last minute flights from San Diego to Denver

24 Dec - 31 Dec $ 223.00
SAN
San Diego
Frontier Airlines
1 STOPS
DEN
Denver
DEN
Denver
Frontier Airlines
DIRECT
SAN
San Diego
Pick dates
31 Dec - 31 Dec $ 275.00
SAN
San Diego
Frontier Airlines
DIRECT
DEN
Denver
DEN
Denver
Frontier Airlines
DIRECT
SAN
San Diego
Pick dates
16 Dec - 31 Dec $ 425.00
SAN
San Diego
Frontier Airlines
DIRECT
DEN
Denver
DEN
Denver
Frontier Airlines
DIRECT
SAN
San Diego
Pick dates

One-way flights to Denver from San Diego

10:57 AM - 3:43 PM
Frontier Airlines
1 Stops
5h 42m
SAN - DEN
$ 86
Kiwi
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4:47 PM - 4:47 PM
Frontier Airlines
0 Stops
2h 33m
SAN - DEN
$ 138
Kiwi
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8:42 PM - 8:42 PM
Hawaiian Airlines
0 Stops
2h 17m
SAN - DEN
$ 286
Kiwi
Pick dates

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

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