Outbound | Return | Airlines | Shop | Baggage | Price | ||
---|---|---|---|---|---|---|---|
Best option Denver St. Louis | Outbound 11/03/25 direct F93302 02h 07min | Return 11/12/25 direct F94567 02h 28min | | ![]() | ? | $119 | |
Denver St. Louis | Outbound 11/03/25 direct F93302 02h 07min | Return 11/12/25 direct F94567 02h 28min | | ![]() | $127 | ||
Denver St. Louis | Outbound 11/03/25 direct F93302 02h 07min | Return 11/12/25 direct F94567 02h 28min | | ![]() | $133 | ||
Denver St. Louis | Outbound 11/03/25 direct F93302 02h 07min | Return 11/12/25 direct F94567 02h 28min | | ![]() | $134 | ||
Denver St. Louis | Outbound 10/10/25 direct F93302 02h 07min | Return 11/04/25 direct F94567 02h 28min | | ![]() | ? | $156 | |
Denver St. Louis | Outbound 10/18/25 direct UA5617 02h 13min | Return 11/17/25 direct UA2132 02h 20min | | ![]() | ? | $214 | |
Denver St. Louis | Outbound 09/04/25 direct UA0652 02h 03min | Return 09/28/25 1 Stopover (ORD) UA1156, UA2296 06h 48min | | ![]() | ? | $216 | |
Denver St. Louis | Outbound 10/18/25 direct UA5617 02h 13min | Return 11/17/25 direct UA1396 02h 22min | | ![]() | ? | $220 | |
Denver St. Louis | Outbound 09/04/25 direct UA5617 02h 13min | Return 09/28/25 1 Stopover (ORD) UA1156, UA2296 06h 48min | | ![]() | ? | $228 | |
Denver St. Louis | Outbound 10/18/25 1 Stopover (CLT) AA3299, AA2497 07h 09min | Return 11/17/25 1 Stopover (DFW) AA1363, AA0577 06h 45min | | ![]() | ? | $233 |
Stops
- Direct flight
Airline
- Frontier Airlines
- United Airlines
- American Airlines
- Alaska Airlines
Tips and tricks to help you find cheap flights from Denver to St. Louis
Favorite airline: Frontier Airlines
Flight tickets on the route Denver – St. Louis are most frequently booked with Frontier Airlines.

Frontier Airlines
62 %

United Airlines
38 %
Important flight information
Flight information: Denver - St. Louis
Roundtrip from | $ 118,20 |
---|---|
Flight duration | min. 01:50 / max. 07:30 |
Return flight duration | min. 02:20/ max. 11:15 |
Distance | 1237 km |
Flights per week | 123 |
Departure airport | Airport Denver International Airport, CO (DEN) |
Arrival airport | Airport St. Louis - Lambert International Airport (STL) |
Destination country | Flights to United States |
Alternative routes to United States
- Flight Denver - Las Vegas from $ 109
- Flight Denver - San Francisco from $ 169
- Flight Denver - Miami from $ 206
- Flight Denver - New York from $ 223
- Flight Denver - Los Angeles from $ 134
- Flight Denver - Seattle-Tacoma from $ 148
- Flight Denver - Chicago from $ 170
- Flight Denver - New York from $ 226
- Flight Denver - Tampa from $ 184
- Flight Denver - Dallas from $ 144
Alternative flights to St. Louis
- Flight Atlanta - St. Louis from $ 125
- Flight Los Angeles - St. Louis from $ 255
- Flight Tampa - St. Louis from $ 194
- Flight Orlando - St. Louis from $ 154
- Flight Las Vegas - St. Louis from $ 189
- Flight Boston - St. Louis from $ 254
- Flight Miami - St. Louis from $ 306
- Flight Fort Myers - St. Louis from $ 224
- Flight Dallas - St. Louis from $ 137
- Flight Chicago - St. Louis from $ 128
Flight destinations with a similar price
- Flight St. Louis - Hamburg from $ 747
- Flight St. Louis - Dusseldorf from $ 800
- Flight St. Louis - Frankfurt from $ 628
- Flight St. Louis - Berlin from $ 586
- Flight St. Louis - Munich from $ 608
- Flight St. Louis - Dublin from $ 530
- Flight St. Louis - Puerto Vallarta from $ 371
- Flight St. Louis - Amsterdam from $ 562
Flight destinations with a similar price
- Flight Denver - Las Vegas from $ 109
- Flight Denver - Phoenix - Sky Harbor from $ 124
- Flight Denver - Salt Lake City from $ 119
- Flight Denver - Houston - George Bush from $ 129