Flights to Aspen from San Diego

View ฿3,555 flight on Mon, 15 Sep 2025Opens in a new window

Popular airlines from San Diego to Aspen

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Cheap Flights from San Diego (SAN) to Aspen (DEN)

Prices were available within the past 7 days and start at ฿3,555 for one-way flights and ฿8,895 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 7 Aug - Sun, 10 Aug
SAN
San Diego
DEN
Denver
฿8,895 Return, found 6 days ago
฿8,895
Return
found 6 days ago
Select Delta flight, departing Thu, 7 Aug from San Diego to Denver, returning Sun, 10 Aug, priced at ฿8,895 found 6 days ago
United
Thu, 7 Aug - Sun, 10 Aug
SAN
San Diego
DEN
Denver
฿9,070 Return, found 6 days ago
฿9,070
Return
found 6 days ago
Select United flight, departing Thu, 7 Aug from San Diego to Denver, returning Sun, 10 Aug, priced at ฿9,070 found 6 days ago
American Airlines
Thu, 7 Aug - Sun, 10 Aug
SAN
San Diego
DEN
Denver
฿9,390 Return, found 6 days ago
฿9,390
Return
found 6 days ago
Select American Airlines flight, departing Thu, 7 Aug from San Diego to Denver, returning Sun, 10 Aug, priced at ฿9,390 found 6 days ago
United
Thu, 7 Aug - Sun, 10 Aug
SAN
San Diego
DEN
Denver
฿10,215 Return, found 6 days ago
฿10,215
Return
found 6 days ago
Select United flight, departing Thu, 7 Aug from San Diego to Denver, returning Sun, 10 Aug, priced at ฿10,215 found 6 days ago
United
Thu, 7 Aug - Sun, 10 Aug
SAN
San Diego
DEN
Denver
฿10,535 Return, found 6 days ago
฿10,535
Return
found 6 days ago
Select United flight, departing Thu, 7 Aug from San Diego to Denver, returning Sun, 10 Aug, priced at ฿10,535 found 6 days ago
American Airlines
Thu, 7 Aug - Sun, 10 Aug
CLD
Carlsbad
DEN
Denver
฿10,565 Return, found 6 days ago
฿10,565
Return
found 6 days ago
Select American Airlines flight, departing Thu, 7 Aug from Carlsbad to Denver, returning Sun, 10 Aug, priced at ฿10,565 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 ฿1,556 - ฿4,153 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.