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Denver to San Marcos Flights (DEN-SAN) from $34
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Selected fares from Denver to San Marcos
The cheapest prices found with in the last 7 days for return flights were $58 and $34 for one-way flights to San Marcos 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)
Wed, Aug 14 - Tue, Aug 27
DEN
Denver Intl.
SAN
San Diego Intl.
$58 Roundtrip, found 2 days ago
$58
Roundtrip
found 2 days ago
![United](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif)
Wed, Nov 20 - Mon, Nov 25
DEN
Denver Intl.
SAN
San Diego Intl.
$111 Roundtrip, found 1 day ago
$111
Roundtrip
found 1 day ago
![American Airlines](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif)
Wed, Aug 14 - Fri, Aug 16
DEN
Denver Intl.
SAN
San Diego Intl.
$178 Roundtrip, found 2 days ago
$178
Roundtrip
found 2 days ago
Save more with San Marcos Flight + Hotel packages
Price found within the past 48 hours. Click for updated prices.
![Pala Casino Spa And Resort](https://images.trvl-media.com/lodging/2000000/1080000/1072000/1071947/8b4fe0bf_y.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh)
![Margaritaville Hotel San Diego Gaslamp Quarter](https://images.trvl-media.com/lodging/2000000/1120000/1117700/1117693/96700a90_y.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh)
![Paradise Point Resort & Spa](https://images.trvl-media.com/lodging/1000000/10000/3800/3731/d0f041ab_y.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh)
![The Wayfarer San Diego](https://images.trvl-media.com/lodging/1000000/20000/15600/15555/e83f0930_y.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh)
![The Sofia Hotel](https://images.trvl-media.com/lodging/2000000/1580000/1573900/1573807/19b5c11a_y.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh)
![Hotel Zindel](https://images.trvl-media.com/lodging/101000000/100830000/100828000/100827985/b1684454_y.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh)
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