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

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0 Children (2~11)
0 Infants (0~2)
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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 January , February 2026

26 Jan - 21 Feb $ 53.00
SAN
San Diego
Frontier Airlines
DIRECT
DEN
Denver
DEN
Denver
Frontier Airlines
DIRECT
SAN
San Diego
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22 Jan - 08 Feb $ 83.00
SAN
San Diego
Frontier Airlines
DIRECT
DEN
Denver
DEN
Denver
Frontier Airlines
DIRECT
SAN
San Diego
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22 Jan - 06 Feb $ 131.00
SAN
San Diego
Alaska Airlines
DIRECT
DEN
Denver
DEN
Denver
Alaska Airlines
DIRECT
SAN
San Diego
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Last minute flights from San Diego to Denver

26 Jan - 31 Jan $ 72.00
SAN
San Diego
Frontier Airlines
DIRECT
DEN
Denver
DEN
Denver
Frontier Airlines
DIRECT
SAN
San Diego
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21 Jan - 31 Jan $ 102.00
SAN
San Diego
Frontier Airlines
DIRECT
DEN
Denver
DEN
Denver
Frontier Airlines
DIRECT
SAN
San Diego
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17 Jan - 31 Jan $ 531.00
SAN
San Diego
United Airlines
DIRECT
DEN
Denver
DEN
Denver
United Airlines
DIRECT
SAN
San Diego
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One-way flights to Denver from San Diego

6:30 AM - 6:30 AM
Frontier Airlines
0 Stops
2h 35m
SAN - DEN
$ 34
Kiwi
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11:49 AM - 11:49 AM
Frontier Airlines
0 Stops
2h 29m
SAN - DEN
$ 64
Kiwi
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7:00 AM - 7:00 AM
Frontier Airlines
0 Stops
2h 31m
SAN - DEN
$ 64
Kiwi
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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.