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Cheap Flights from Denver (DEN) to San Diego (SAN)
Prices were available within the past 7 days and start at £78 for one-way flights and £137 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
![Frontier Airlines](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/F9.gif)
Sat, 7 Dec - Sat, 14 Dec
DEN
Denver
SAN
San Diego
£137 Return, found 1 day ago
£137
Return
found 1 day ago
![Frontier Airlines](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/F9.gif)
Mon, 2 Dec - Mon, 9 Dec
DEN
Denver
SAN
San Diego
£169 Return, found 1 day ago
£169
Return
found 1 day ago
![Frontier Airlines](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/F9.gif)
Sat, 7 Dec - Thu, 19 Dec
DEN
Denver
SAN
San Diego
£181 Return, found 1 day ago
£181
Return
found 1 day ago
![Frontier Airlines](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/F9.gif)
Sat, 7 Dec - Fri, 20 Dec
DEN
Denver
SAN
San Diego
£197 Return, found 1 day ago
£197
Return
found 1 day ago
![Alaska Airlines](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif)
Mon, 16 Sep - Tue, 17 Sep
DEN
Denver
SAN
San Diego
£216 Return, found 2 days ago
£216
Return
found 2 days ago
![Alaska Airlines](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif)
Thu, 19 Sep - Mon, 23 Sep
DEN
Denver
SAN
San Diego
£217 Return, found 10 hours ago
£217
Return
found 10 hours ago
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