Cheap Flights from San Diego to Aspen

View €77 flight on Sat, 16 Aug 2025Opens in a new window

Popular airlines from San Diego to Aspen

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Cheap flights from San Diego to Aspen (SAN-DEN)

Prices were available within the past 7 days and start at €77 for one-way flights and €163 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, 23 Aug - Mon, 25 Aug
CLD
Carlsbad
DEN
Denver
€163 Return, found 6 days ago
€163
Return
found 6 days ago
Select American Airlines flight, departing Sat, 23 Aug from Carlsbad to Denver, returning Mon, 25 Aug, priced at €163 found 6 days ago
American Airlines
Sat, 23 Aug - Mon, 25 Aug
SAN
San Diego
DEN
Denver
€163 Return, found 6 days ago
€163
Return
found 6 days ago
Select American Airlines flight, departing Sat, 23 Aug from San Diego to Denver, returning Mon, 25 Aug, priced at €163 found 6 days ago
American Airlines
Sat, 16 Aug - Mon, 18 Aug
SAN
San Diego
DEN
Denver
€172 Return, found 1 day ago
€172
Return
found 1 day ago
Select American Airlines flight, departing Sat, 16 Aug from San Diego to Denver, returning Mon, 18 Aug, priced at €172 found 1 day ago
United
Sat, 23 Aug - Mon, 25 Aug
SAN
San Diego
DEN
Denver
€186 Return, found 6 days ago
€186
Return
found 6 days ago
Select United flight, departing Sat, 23 Aug from San Diego to Denver, returning Mon, 25 Aug, priced at €186 found 6 days ago
Delta
Sat, 16 Aug - Mon, 18 Aug
SAN
San Diego
DEN
Denver
€189 Return, found 1 day ago
€189
Return
found 1 day ago
Select Delta flight, departing Sat, 16 Aug from San Diego to Denver, returning Mon, 18 Aug, priced at €189 found 1 day ago
JetBlue Airways
Sat, 23 Aug - Mon, 25 Aug
SAN
San Diego
DEN
Denver
€412 Return, found 6 days ago
€412
Return
found 6 days ago
Select JetBlue Airways flight, departing Sat, 23 Aug from San Diego to Denver, returning Mon, 25 Aug, priced at €412 found 6 days ago

Find the cheapest month to fly from San Diego (SAN) to Denver (DEN)

August is typically the cheapest month to fly

From €41 - €119 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.