Home >> Fares From A City >> St. Louis, MO >> St. Louis, MO (STL) To Denver, CO (DEN)
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Last Published Fare:
$137 Flight from to Denver (STL-DEN),
United
Expired: June 24, 2016
  • AIRLINES
    United
  • DAYS AVAILABLE FOR TRAVEL
    Mon-Thur
  • TRAVEL STARTING
    Tue, August 23, 2016
  • TRAVEL ENDING
    Tue, September 27, 2016
Peter T.
Staff Airfare Analyst
Peter's Notes:
Non-stop.
No min. stay. Fare can be bought one-way for half the lowest roundtrip price. Late Summer/Fall travel.
Travel between late August and September.

CheapAir charges a $12.50 booking fee.
Seats are not available on all flights or all dates of travel. You may need to have flexible travel dates to find this fare. Fares for travel on holidays may be higher.
All mandatory taxes/fees are included in the price. Tax-inclusive fare may be a few dollars higher or lower depending on the airport you connect through, if any. Baggage fees, if applicable, and other optional fees are not included. Our Dealhounds found this airfare using flexible date search. This means we searched a range of dates to find you the best price.
More Details
Close Details
Reviews for St. Louis to Denver
9 Traveler Reviews
"Very Nice"
Flight from St. Louis to Denver
Airline: Southwest
RT/OW: roundtrip
Number of Stops: 1 stop in OMA
Date of Flight: January 2011
Seat Class: economy
Check-in Experience
In-flight Service
Seat Comfort
Older plane. Nice if attendants would leave beverage with you, not just give you one little cup mostly full of ice.
Found by other travelers: St. Louis, MO (STL) to Denver, CO (DEN)
$278
Flight from to Denver (STL - DEN)
Wed, Jun 18 - Sun, Jun 22
Frontier
$308
Flight from to Denver (STL - DEN)
Thu, Jul 3 - Mon, Jul 7
Frontier
$198
Flight from to Denver (STL - DEN)
Tue, Jun 24 - Wed, Jun 25
Frontier
$483
Flight from to Denver (STL - DEN)
Fri, Jun 6 - Sun, Jun 8
American
$248
Flight from to Denver (STL - DEN)
Fri, Jun 27 - Tue, Jul 1
Frontier
$208
Flight from to Denver (STL - DEN)
Fri, Sep 26 - Sun, Sep 28
Frontier
$208
Flight from to Denver (STL - DEN)
Thu, Sep 25 - Sun, Sep 28
Frontier
$348
Flight from to Denver (STL - DEN)
Sun, Jun 8 - Fri, Jun 13
Frontier
$327
Flight from to Denver (STL - DEN)
Mon, Jun 9 - Fri, Jun 13
US Airways
$268
Flight from to Denver (STL - DEN)
Tue, Jun 10 - Fri, Jun 13
Frontier
There are approximately 283 flights covering the route from Lambert-St. Louis International Airport in to Denver International Airport in Denver, provided by as many as 8 airlines.
The following airlines often offer cheap flights from to Denver
Continental
Southwest
United
American
Frontier
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