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Cheap Flights From St. Louis, Missouri (STL) To Denver, Colorado (DEN)

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Fares from St. Louis, MO (STL)
$145 RT to
Denver, CO (DEN)
Sorry this deal is over or has been sold out! But here’s another great Airfarewatchdog verified fare for this route!
$145 RT St. Louis to Denver, CO
Airline(s)
Frontier
Seats:
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.
Adv. Purchase:
14 Days
Available:
7 days/week, if available
Travel Starting:
Thursday, 13 November 2014
More Details:
Lowest fare found for travel within the next 30 days.
Last Updated:
Friday, 31 October 2014
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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.

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More Flights From St. Louis To Denver (STL-DEN)

Price
Details
$214 RT Non-Stop Flights. No min. stay. Fare can be bought one-way for half the... (Southwest) See all details »
  • Airline(s):
    Southwest
  • Seats are:
    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.
  • Available for travel:
    Mon-Thur & Sat
  • Travel starting:
    Wednesday, 03 December 2014
  • Travel ending:
    Wednesday, February 11, 2015
  • More Details:
    Non-Stop Flights, No Min. Stay, Fare Can Be Bought One-way For Half The Lowest Roundtrip Price, No Peak Holiday Travel At This Price
  • Last Updated:
    Thursday, October 30, 2014
  • Our Notes:
    Blackout dates apply: Dec. 17, 2014 - Jan. 5, 2015. This is a fare from Southwest - visit Southwest.com to find this fare. Other airlines often match Southwest ...moresales, so search other sites to find the best option.
$278 RT Nonstop; Travel this weekend (United) See all details »
  • Airline(s):
    United
  • Seats are:
    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.
  • Available for travel:
    Mon-Tue & Fri-Sat
  • Travel starting:
    Friday, 31 October 2014
  • Travel ending:
    Tuesday, November 4, 2014
  • More Details:
    Nonstop; Travel This Weekend
  • Last Updated:
    Tuesday, October 28, 2014
  • Our Notes:
    Depart*: Friday (after 7:00 Pm) Or Saturday - October 31 Or November 1 Return*: Monday Or Tuesday - November 3 Or 4

Reviews for St. Louis to Denver (STL-DEN)

based on 9 reviews
Flown this route before? Write a review
    1. Flight Rating

    2. Check-in Experience:

    3. In-flight Service:

    4. Seat Comfort:

    Very Nice

    by lauragall on January 28, 2011

    Flight from St. Louis to Denver

    Airline:
    Southwest
    RT/OW
    Round Trip
    Number of Stops:
    1 stop in Omaha, Nebraska
    Date of Flight:
    January 2011
    Seat Class:
    economy

    Older plane. Nice if attendants would leave beverage with you, not just give you one little cup mostly full of ice.

    1. Flight Rating

    2. Check-in Experience:

    3. In-flight Service:

    4. Seat Comfort:

    Everything was smooth

    by mimipearl on December 30, 2010

    Flight from St. Louis to Denver

    Airline:
    Frontier
    RT/OW
    Round Trip
    Number of Stops:
    No stops
    Date of Flight:
    December 2010
    Seat Class:
    economy

    Lucky for me, all the bad weather was on the coasts! On time, smooth flying, no obnoxious or crying passengers.

    1. Flight Rating

    2. Check-in Experience:

    3. In-flight Service:

    4. Seat Comfort:

    Fresh Baked Cookie and a Soda

    by john_f_walters on December 2, 2010

    Flight from St. Louis to Denver

    Airline:
    Frontier
    RT/OW
    Round Trip
    Number of Stops:
    No stops
    Date of Flight:
    November 2010
    Seat Class:
    economy

    Frontier doesn't have many flights leaving St. Louis so the airline has not automated the check-in procedure. The agent was pleasant, TSA security check was swift, the plane departed early and likewise arrived early in Denver.

    The departure from Denver was an opposite experience. The humorless ticket agent was terse and scolded us for coming to the ticket counter to check-in rather than use the self-service. The plane departed one hour late without any explanation to the full plane of passengers. The plane was an Airbus with individual monitors built into the back of the seat you face. However, you must pay a $6 fee to see a TV show or movie. Rather than go blank if you did not pay the fee, the screen constantly flashed the same ads for the entire trip (even the GPS feature required the fee). Since Frontier charges for checked luggage, most passengers had carry-on bags. Since the plane was full, the gate agent asked passengers to check carry-on luggage and she did so without charging the usual fee.

    The highlight of both legs of the flight was the freshly baked chocolate chip cookie served during the light with the complimentary beverage.

    1. Flight Rating

    2. Check-in Experience:

    3. In-flight Service:

    4. Seat Comfort:

    Great Flights

    by Coloradotravel on September 30, 2010

    Flight from St. Louis to Denver

    Airline:
    Southwest
    RT/OW
    Round Trip
    Number of Stops:
    No stops
    Date of Flight:
    September 2010
    Seat Class:
    economy

    First time flying Southwest and was very happy with the entire process. Paid the $10 for early boarding and I will do this whenever I fly SW. Departed on time and arrived on time. Flight attendants were very friendly and helpful. Booked on-line and had no problems at all.

    1. Flight Rating

    2. Check-in Experience:

    3. In-flight Service:

    4. Seat Comfort:

    good flight, but very dissappointed.

    by thartom on September 23, 2010

    Flight from St. Louis to Denver

    Airline:
    Frontier
    RT/OW
    Round Trip
    Number of Stops:
    No stops
    Date of Flight:
    September 2010
    Seat Class:
    economy

    On our return flight from Denver to St. Louis, the plane was looking over-booked. We were asked to stand-by and take the next flight, the deal being $200 vouchers and dinner. We agreed. After we were on the plane, the stewardess asked for the two stand-bys because two people did not have seats. My husband and I both waved and shouted, it's us. The two people sitting beside her asked what the deal was, she told them and they said we'll do it. She completely skipped over us and let them have the deal. Needless to say, At the point, we felt like it would'nt do any good to bring it up again, the people were gone, and we were getting ready for take-off. When we landed in St. Louis, we approached the Frontier counter and told the person what had happened, she gave us a card to contact Frontier and said she could not do anything. I then called Frontier after getting home and nicely told the rep. my story, she was sympathetic but said the time to do something was on the plane. I told her we had tried to. We were both in window seats, and it is not easy to stand up quickly or get into the aisle, but the stewardess did see us waving and shouting. So, again her answer was, I can't help you. I guess they are trained to "pass the buck" when it comes to handling customer service. The flight actually was very good, but the whole incident will influence my decision next time of which airline to purchase tickets from. Even if I have to pay a little more. Good customer service is very important to me.

    1. Flight Rating

    2. Check-in Experience:

    3. In-flight Service:

    4. Seat Comfort:

    Southwest-always good

    by ColoradoSlim on July 22, 2010

    Flight from St. Louis to Denver

    Airline:
    Southwest
    RT/OW
    Round Trip
    Number of Stops:
    No stops
    Date of Flight:
    May 2010
    Seat Class:
    economy

    Sothwest is always good and this trip was no exception. Friendly, helpful staff. They go the extra mile. Fly Southwest!

    1. Flight Rating

    2. Check-in Experience:

    3. In-flight Service:

    4. Seat Comfort:

    More room between the seat in front of you. The in-flight service was the best

    by Dodie60 on June 25, 2010

    Flight from St. Louis to Denver

    Airline:
    Southwest
    RT/OW
    Round Trip
    Number of Stops:
    1 stop in Kansas City, Missouri
    Date of Flight:
    May 2010
    Seat Class:
    economy

    So much room between the seats. The in-flight service was great.The transfer of luggage was great with the stop over.

    1. Flight Rating

    2. Check-in Experience:

    3. In-flight Service:

    4. Seat Comfort:

    On time both directions

    by goschem on June 2, 2010

    Flight from St. Louis to Denver

    Airline:
    Southwest
    RT/OW
    Round Trip
    Number of Stops:
    1 stop in Kansas City, Missouri
    Date of Flight:
    May 2010
    Seat Class:
    economy

    We left on time and the return flight was also on time. Actually arrived early going out to destination.

    I was concerned with the peanuts being served on the return flight because of the allergy issue.

    1. Flight Rating

    2. Check-in Experience:

    3. In-flight Service:

    4. Seat Comfort:

    Southwest-fine as usual

    by ColoradoSlim on June 1, 2010

    Flight from St. Louis to Denver

    Airline:
    Southwest
    RT/OW
    Round Trip
    Number of Stops:
    No stops
    Date of Flight:
    May 2010
    Seat Class:
    economy

    I fly Southwest whenever I can and thankfully, it serves the 2 locations to which I fly most frequently to visit family. I like its friendly personnel(one of its pilots bought me breakfast one day since we were in the Starbucks line together talking; I kept looking at my watch and the gate, when he asked where I was going; he told me that my flight was his plane, so I could relax). If you are fortunate to get one of the many funny flight attendants, you will truly enjoy the pre-flight announcements. Numerous other kindnesses and EXCELLENT prices, including no bag fees for checked bags, make it our choice. This last flight was no exception to the good prices and good service we have come to expect.

Flown this route before? Write a review
Sample Fares found by other travelers within the past 72 hours
Price From/To Depart/Return Airline
$335 Flight from St. Louis to Denver (STL-DEN) Thu, Jun 5 - Sun, Jun 8 Delta Air Lines
$345 Flight from St. Louis to Denver (STL-DEN) Fri, Jun 6 - Sun, Jun 8 Delta Air Lines
$348 Flight from St. Louis to Denver (STL-DEN) Thu, Jun 5 - Sat, Jun 7 Delta Air Lines
$350 Flight from St. Louis to Denver (STL-DEN) Fri, Jun 6 - Sun, Jun 8 American Airlines
$377 Flight from St. Louis to Denver (STL-DEN) Fri, Jun 6 - Sun, Jun 8 US Airways
$421 Flight from St. Louis to Denver (STL-DEN) Fri, Jun 6 - Sun, Jun 8 American Airlines
$460 Flight from St. Louis to Denver (STL-DEN) Fri, Jun 6 - Sun, Jun 8 American Airlines
$483 Flight from St. Louis to Denver (STL-DEN) Fri, Jun 6 - Sun, Jun 8 American Airlines
$491 Flight from St. Louis to Denver (STL-DEN) Thu, Jun 5 - Sun, Jun 8 Delta Air Lines
$558 Flight from St. Louis to Denver (STL-DEN) Thu, Jun 5 - Sun, Jun 8 Frontier Airlines
There are approximately 283 flights covering the route from Lambert-St. Louis International Airport in St. Louis to Denver International Airport in Denver, provided by as many as 8 airlines.

The following airlines sometimes offer nonstop cheap flights from St. Louis to Denver:

Transwest Air

As an alternative to flying from St. Louis, you may also want to try searching for cheap flights from Columbia (COU).
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