Cheap Flights from San Diego to Aspen

View €76 flight on Mon, 18 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 €76 for one-way flights and €175 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, 14 Aug - Mon, 18 Aug
SAN
San Diego
DEN
Denver
€175 Return, found 5 days ago
€175
Return
found 5 days ago
Select American Airlines flight, departing Thu, 14 Aug from San Diego to Denver, returning Mon, 18 Aug, priced at €175 found 5 days ago
Delta
Sat, 1 Nov - Sun, 2 Nov
SAN
San Diego
DEN
Denver
€179 Return, found 6 days ago
€179
Return
found 6 days ago
Select Delta flight, departing Sat, 1 Nov from San Diego to Denver, returning Sun, 2 Nov, priced at €179 found 6 days ago
Delta
Thu, 14 Aug - Mon, 18 Aug
SAN
San Diego
DEN
Denver
€186 Return, found 5 days ago
€186
Return
found 5 days ago
Select Delta flight, departing Thu, 14 Aug from San Diego to Denver, returning Mon, 18 Aug, priced at €186 found 5 days ago
Delta
Sat, 1 Nov - Sun, 2 Nov
SAN
San Diego
DEN
Denver
€188 Return, found 6 days ago
€188
Return
found 6 days ago
Select Delta flight, departing Sat, 1 Nov from San Diego to Denver, returning Sun, 2 Nov, priced at €188 found 6 days ago
United
Sat, 1 Nov - Sun, 2 Nov
SAN
San Diego
DEN
Denver
€188 Return, found 6 days ago
€188
Return
found 6 days ago
Select United flight, departing Sat, 1 Nov from San Diego to Denver, returning Sun, 2 Nov, priced at €188 found 6 days ago
JetBlue Airways
Sat, 25 Oct - Sun, 26 Oct
SAN
San Diego
DEN
Denver
€420 Return, found 6 days ago
€420
Return
found 6 days ago
Select JetBlue Airways flight, departing Sat, 25 Oct from San Diego to Denver, returning Sun, 26 Oct, priced at €420 found 6 days ago

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

September is typically the cheapest month to fly

From €41 - €110 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.