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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 August , September 2026

31 Aug - 16 Sep $ 203.00
SAN
San Diego
Frontier Airlines
DIRECT
DEN
Denver
DEN
Denver
Frontier Airlines
DIRECT
SAN
San Diego
Pick dates
25 Aug - 08 Sep $ 250.00
SAN
San Diego
Frontier Airlines
1 STOPS
DEN
Denver
DEN
Denver
Frontier Airlines
DIRECT
SAN
San Diego
Pick dates
26 Aug - 08 Sep $ 363.00
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

31 Aug - 31 Aug $ 335.00
SAN
San Diego
Frontier Airlines
DIRECT
DEN
Denver
DEN
Denver
Frontier Airlines
DIRECT
SAN
San Diego
Pick dates
25 Aug - 31 Aug $ 346.00
SAN
San Diego
Frontier Airlines
1 STOPS
DEN
Denver
DEN
Denver
Frontier Airlines
DIRECT
SAN
San Diego
Pick dates
26 Aug - 31 Aug $ 458.00
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

3:45 PM - 3:45 PM
Frontier Airlines
0 Stops
2h 35m
SAN - DEN
$ 168
Kiwi
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6:25 AM - 11:21 AM
Frontier Airlines
1 Stops
6h 52m
SAN - DEN
$ 179
Kiwi
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5:45 PM - 5:45 PM
Alaska Airlines
0 Stops
2h 28m
SAN - DEN
$ 279
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.