Cheap Flights from St. Louis to Aspen

  • Plan, book, fly with confidence
  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 15% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards
    Sign in

Cheap flights from St. Louis to Aspen (STL-DEN)

Prices were available within the past 7 days and start at €94 for one-way flights and €187 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, 29 Jan - Wed, 5 Feb
STL
St. Louis
DEN
Denver
€187 Return, found 6 days ago
€187
Return
found 6 days ago
Select Delta flight, departing Wed, 29 Jan from St. Louis to Denver, returning Wed, 5 Feb, priced at €187 found 6 days ago
American Airlines
Wed, 29 Jan - Wed, 5 Feb
STL
St. Louis
DEN
Denver
€189 Return, found 6 days ago
€189
Return
found 6 days ago
Select American Airlines flight, departing Wed, 29 Jan from St. Louis to Denver, returning Wed, 5 Feb, priced at €189 found 6 days ago
Delta
Wed, 29 Jan - Wed, 5 Feb
STL
St. Louis
DEN
Denver
€197 Return, found 6 days ago
€197
Return
found 6 days ago
Select Delta flight, departing Wed, 29 Jan from St. Louis to Denver, returning Wed, 5 Feb, priced at €197 found 6 days ago
American Airlines
Sat, 11 Jan - Mon, 13 Jan
STL
St. Louis
DEN
Denver
€199 Return, found 4 days ago
€199
Return
found 4 days ago
Select American Airlines flight, departing Sat, 11 Jan from St. Louis to Denver, returning Mon, 13 Jan, priced at €199 found 4 days ago
American Airlines
Sat, 11 Jan - Mon, 13 Jan
STL
St. Louis
DEN
Denver
€200 Return, found 4 days ago
€200
Return
found 4 days ago
Select American Airlines flight, departing Sat, 11 Jan from St. Louis to Denver, returning Mon, 13 Jan, priced at €200 found 4 days ago
Delta
Wed, 29 Jan - Wed, 5 Feb
STL
St. Louis
DEN
Denver
€206 Return, found 6 days ago
€206
Return
found 6 days ago
Select Delta flight, departing Wed, 29 Jan from St. Louis to Denver, returning Wed, 5 Feb, priced at €206 found 6 days ago
*Available to Expedia members.