Home >> Fares From A City >> Denver, CO >> Denver, CO (DEN) To St. Louis, MO (STL)
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HOW TO FIND THIS FARE
  • AIRLINES
    Frontier
  • DAYS AVAILABLE FOR TRAVEL
    Mon-Thur
  • TRAVEL STARTING
    Tue, August 23, 2016
  • TRAVEL ENDING
    Wed, March 01, 2017
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. No peak holiday travel at this price. Late Summer/Fall/Winter travel.
Travel between late August and early March. Travel to Denver Mon-Wed; Travel from Denver Tue-Thu. Blackout dates apply: Sep. 1-2, 5-6; Nov. 18-29; Dec. 16, 2016 - Jan. 3, 2017; Jan. 12-17; Feb 16-21, 2017.

Fare found on FlyFrontier.com. Lower fares may be available for Frontier Discount Den members.

Frontier charges a $30-$35 fee each way for carry-on bags larger than 18x14x8 inches and a $25-$30 fee each way for first checked bag no larger than 62 linear inches (length + width + depth) and no heavier than 50 pounds. These bag fees apply to online purchases before check-in. Higher fees apply at the airport.

During booking on FlyFrontier.com, you can purchase "The Works", which includes one checked bag, one carry-on bag, stretch seating, no change fees, and refundability, for much less than purchasing these items separately.
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 Denver to St. Louis
4 Traveler Reviews
"American Airlines champion customer service"
Flight from Denver to St. Louis
Airline: American
RT/OW: roundtrip
Number of Stops: 1 stop in DFW
Date of Flight: February 2011
Seat Class: economy
Check-in Experience
In-flight Service
Seat Comfort
it has been many years since I enjoyed a trip on an airline as this trip on American Airlines. The esprit d'corps among the staff to provide quality service, especially during weather related delays, was refreshing and appreciated. This is what flying used to be about when the experience was grand and pleasurable. I will choose to fly American whenever I can.
Found by other travelers: Denver, CO (DEN) to St. Louis, MO (STL)
$188
Flight from Denver to (DEN - STL)
Fri, Jun 20 - Tue, Jun 24
Frontier
$314
Flight from Denver to (DEN - STL)
Sat, Jun 7 - Sat, Jun 14
Delta
$338
Flight from Denver to (DEN - STL)
Thu, Jun 26 - Sat, Jun 28
Frontier
$377
Flight from Denver to (DEN - STL)
Fri, Jun 6 - Sun, Jun 8
US Airways
$258
Flight from Denver to (DEN - STL)
Thu, Jun 19 - Mon, Jun 23
Frontier
$294
Flight from Denver to (DEN - STL)
Fri, Jun 6 - Mon, Jun 9
US Airways
$391
Flight from Denver to (DEN - STL)
Thu, Jun 12 - Sun, Jun 15
United
$188
Flight from Denver to (DEN - STL)
Fri, Jul 11 - Tue, Jul 15
Frontier
$268
Flight from Denver to (DEN - STL)
Tue, Jun 10 - Sun, Jun 15
Frontier
$218
Flight from Denver to (DEN - STL)
Sat, Jul 26 - Fri, Aug 1
Frontier
There are approximately 270 flights covering the route from Denver International Airport in Denver to Lambert-St. Louis International Airport in , provided by as many as 8 airlines.
The following airlines often offer cheap flights from Denver to
Continental
Southwest
American
United
Frontier
Your Travel Dates: to
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