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Flights from Denver to St. Louis
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Flights from Denver to St. Louis Starting at NZD 32

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • One way
  • Round-trip
      • Cheapest nonstop
        DEN06:00
        2h 16m
        Nonstop
        STL09:16
        Wed, Feb 26|Denver - St. Louis|Frontier Airlines
        NZD 32NZD 69
        54% OFF
        54% OFF
        NZD 69NZD 32

        Choose Frontier Airlines flights from Denver to St. Louis. The one-way direct flight with Frontier Airlines departs from Denver International Airport on Wed, Feb 26, arriving at St. Louis Lambert International Airport. One-way Prices start from NZD 32 including taxes and charges.

      • DEN06:00
        2h 16m
        Nonstop
        STL09:16
        Wed, Mar 12|Denver - St. Louis|Frontier Airlines
        NZD 36NZD 69
        49% OFF
        49% OFF
        NZD 69NZD 36

        Choose Frontier Airlines flights from Denver to St. Louis. The one-way direct flight with Frontier Airlines departs from Denver International Airport on Wed, Mar 12, arriving at St. Louis Lambert International Airport. One-way Prices start from NZD 36 including taxes and charges.

      • DEN06:00
        2h 16m
        Nonstop
        STL09:16
        Wed, Feb 5|Denver - St. Louis|Frontier Airlines
        NZD 49NZD 69
        28% OFF
        28% OFF
        NZD 69NZD 49

        Choose Frontier Airlines flights from Denver to St. Louis. The one-way direct flight with Frontier Airlines departs from Denver International Airport on Wed, Feb 5, arriving at St. Louis Lambert International Airport. One-way Prices start from NZD 49 including taxes and charges.

      • DEN06:00
        2h 16m
        Nonstop
        STL09:16
        Sat, Feb 8|Denver - St. Louis|Frontier Airlines
        NZD 49
        NZD 49

        Choose Frontier Airlines flights from Denver to St. Louis. The one-way direct flight with Frontier Airlines departs from Denver International Airport on Sat, Feb 8, arriving at St. Louis Lambert International Airport. One-way Prices start from NZD 49 including taxes and charges.

      • DEN06:00
        2h 16m
        Nonstop
        STL09:16
        Wed, Feb 12|Denver - St. Louis|Frontier Airlines
        NZD 49
        NZD 49

        Choose Frontier Airlines flights from Denver to St. Louis. The one-way direct flight with Frontier Airlines departs from Denver International Airport on Wed, Feb 12, arriving at St. Louis Lambert International Airport. One-way Prices start from NZD 49 including taxes and charges.

      • DEN06:00
        2h 16m
        Nonstop
        STL09:16
        Wed, Feb 19|Denver - St. Louis|Frontier Airlines
        NZD 49
        NZD 49

        Choose Frontier Airlines flights from Denver to St. Louis. The one-way direct flight with Frontier Airlines departs from Denver International Airport on Wed, Feb 19, arriving at St. Louis Lambert International Airport. One-way Prices start from NZD 49 including taxes and charges.

      • DEN06:00
        2h 16m
        Nonstop
        STL09:16
        Sat, Feb 15|Denver - St. Louis|Frontier Airlines
        NZD 49
        NZD 49

        Choose Frontier Airlines flights from Denver to St. Louis. The one-way direct flight with Frontier Airlines departs from Denver International Airport on Sat, Feb 15, arriving at St. Louis Lambert International Airport. One-way Prices start from NZD 49 including taxes and charges.

      • DEN06:00
        2h 16m
        Nonstop
        STL09:16
        Wed, Mar 5|Denver - St. Louis|Frontier Airlines
        NZD 49
        NZD 49

        Choose Frontier Airlines flights from Denver to St. Louis. The one-way direct flight with Frontier Airlines departs from Denver International Airport on Wed, Mar 5, arriving at St. Louis Lambert International Airport. One-way Prices start from NZD 49 including taxes and charges.

      • DEN06:00
        2h 16m
        Nonstop
        STL09:16
        Sat, Feb 22|Denver - St. Louis|Frontier Airlines
        NZD 52
        NZD 52

        Choose Frontier Airlines flights from Denver to St. Louis. The one-way direct flight with Frontier Airlines departs from Denver International Airport on Sat, Feb 22, arriving at St. Louis Lambert International Airport. One-way Prices start from NZD 52 including taxes and charges.

      • DEN06:00
        2h 16m
        Nonstop
        STL09:16
        Wed, Jan 29|Denver - St. Louis|Frontier Airlines
        NZD 53
        NZD 53

        Choose Frontier Airlines flights from Denver to St. Louis. The one-way direct flight with Frontier Airlines departs from Denver International Airport on Wed, Jan 29, arriving at St. Louis Lambert International Airport. One-way Prices start from NZD 53 including taxes and charges.

      • DEN01:00 pm
        3h 5m
        Nonstop
        STL02:00 pm
        Wed, Feb 5|Denver - St. Louis|Frontier Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Denver to St. Louis flight time & flight schedules

Flight info.
Departure
Arrival
Weekly Schedule

  1. F93302

    Frontier Airlines

    12:00

    DEN

    2.1h

    Nonstop

    15:07

    STL

    SMTWTFS
    Search

  2. F92349

    Frontier Airlines

    13:28

    DEN

    2.0h

    14:29

    LAS

    SMTWTFS
    Search

  3. F92018

    Frontier Airlines

    12:22

    LAS

    3.4h

    17:43

    STL

    SMTWTFS

  4. F94920

    Frontier Airlines

    14:14

    DEN

    3.9h

    20:06

    MCO

    S--WTFS
    Search

  5. F92635

    Frontier Airlines

    22:18

    MCO

    2.8h

    00:04

    STL

    SMTWTFS

  6. F94611

    Frontier Airlines

    19:49

    DEN

    2.1h

    20:54

    LAS

    SMTWTFS
    Search

  7. F92018

    Frontier Airlines

    12:22

    LAS

    3.4h

    17:43

    STL

    SMTWTFS
Find more flights and airlines

Find the best time to fly from Denver to St. Louis

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Airlines Flying from Denver to St. Louis

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.
Frontier Airlines logoFrontier AirlinesUnited Airlines logoUnited Airlines

FAQ

  • When are flight tickets from Denver (DEN) to St. Louis (STL) the cheapest?

    Airlines adjust prices for flights from Denver to St. Louis based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Denver (DEN) to St. Louis (STL) cost?

    According to Trip.com's data, the lowest price is around NZD 345.

  • How long does it take to fly from Denver (DEN) to St. Louis (STL) and what is the distance?

    It takes around 2 hours 9 minutes to fly from Denver (DEN) to St. Louis (STL).

  • What is the transportation method from the main airport to downtown in St. Louis?

    • The distance from St. Louis Lambert International Airport to downtown is about 20 km. It takes about 40 minutes by taxi.

  • What are the most popular airlines that fly from Denver (DEN) to St. Louis (STL)?

    Airlines with flights from Denver (DEN) to St. Louis (STL): Southwest Airlines, United Airlines, Volaris, Frontier Airlines and Air Canada.

How to find a cheap flight from Denver to St. Louis

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Denver to St. Louis. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Information from Denver to St. Louis

Cheapest nonstop flight priceNZD 31
Cheapest round-trip ticket priceNZD 83
Off-season for travelMarch
Peak season for travelOctober
Flight distance1,253.6 km
Average flight time2 hours 9 minutes
Popular airlineFrontier Airlines

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