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Denver International Airport to St. Louis Lambert International Airport flight

Explore the cheapest one-way and round-trip flights from Denver International Airport to St. Louis Lambert International Airport over the next 90 days, with one-way fares from €40 and round-trip from €77. Based on Trip.com's latest 7-day flight data.

    • Cheapest nonstop
      DEN 7:47 AM
      2h 10m
      Nonstop
      STL 10:57 AM
      Denver - St. Louis | Sat, Dec 12 | Frontier Airlines
      STL 7:54 PM
      2h 31m
      Nonstop
      DEN 9:25 PM
      St. Louis - Denver | Sun, Dec 13 | Frontier Airlines
      €77 €110
      30% off
      30% off
      €110 €77
    • DEN 7:37 AM
      2h 8m
      Nonstop
      STL 10:45 AM
      Denver - St. Louis | Fri, Nov 20 | Frontier Airlines
      STL 3:04 PM
      2h 33m
      Nonstop
      DEN 4:37 PM
      St. Louis - Denver | Sun, Nov 22 | Frontier Airlines
      €77 €110
      30% off
      30% off
      €110 €77
    • DEN 4:12 PM
      2h 3m
      Nonstop
      STL 7:15 PM
      Denver - St. Louis | Tue, Oct 27 | Frontier Airlines
      STL 7:59 PM
      2h 31m
      Nonstop
      DEN 9:30 PM
      St. Louis - Denver | Tue, Nov 3 | Frontier Airlines
      €79 €110
      28% off
      28% off
      €110 €79
    • DEN 4:09 PM
      2h 5m
      Nonstop
      STL 7:14 PM
      Denver - St. Louis | Sun, Nov 1 | Frontier Airlines
      STL 7:59 PM
      2h 31m
      Nonstop
      DEN 9:30 PM
      St. Louis - Denver | Tue, Nov 3 | Frontier Airlines
      €79
      28% off
      €110 €79
    • DEN 4:09 PM
      2h 5m
      Nonstop
      STL 7:14 PM
      Denver - St. Louis | Sat, Nov 14 | Frontier Airlines
      STL 7:59 PM
      2h 31m
      Nonstop
      DEN 9:30 PM
      St. Louis - Denver | Tue, Nov 17 | Frontier Airlines
      €79
      28% off
      €110 €79
    • DEN 12:21 PM
      2h 2m
      Nonstop
      STL 3:23 PM
      Denver - St. Louis | Thu, Nov 5 | Frontier Airlines
      STL 7:59 PM
      2h 31m
      Nonstop
      DEN 9:30 PM
      St. Louis - Denver | Sun, Nov 8 | Frontier Airlines
      €80
      27% off
      €110 €80
    • DEN 4:09 PM
      2h 5m
      Nonstop
      STL 7:14 PM
      Denver - St. Louis | Sun, Nov 8 | Frontier Airlines
      STL 7:59 PM
      2h 31m
      Nonstop
      DEN 9:30 PM
      St. Louis - Denver | Tue, Nov 10 | Frontier Airlines
      €80
      27% off
      €110 €80
    • DEN 3:50 PM
      2h 4m
      Nonstop
      STL 6:54 PM
      Denver - St. Louis | Sun, Dec 20 | Frontier Airlines
      STL 7:49 PM
      2h 31m
      Nonstop
      DEN 9:20 PM
      St. Louis - Denver | Tue, Dec 22 | Frontier Airlines
      €80
      27% off
      €110 €80
    • DEN 12:21 PM
      2h 2m
      Nonstop
      STL 3:23 PM
      Denver - St. Louis | Thu, Oct 29 | Frontier Airlines
      STL 7:59 PM
      2h 31m
      Nonstop
      DEN 9:30 PM
      St. Louis - Denver | Tue, Nov 3 | Frontier Airlines
      €81
      26% off
      €110 €81
    • DEN 1:00 PM
      17h 25m
      1 stop
      STL 2:00 PM
      Denver - St. Louis | Wed, Oct 28 | Normal Airline
      STL 3:00 PM
      6h
      Nonstop
      DEN 4:00 PM
      St. Louis - Denver | Fri, Oct 30 | Normal Airline
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    • Cheapest
      DEN 4:09 PM
      2h 5m
      Nonstop
      STL 7:14 PM
      Denver - St. Louis | Mon, Nov 2 | Frontier Airlines
      €40 €48
      17% off
      17% off
      €48 €40
    • Cheapest
      DEN 4:09 PM
      2h 5m
      Nonstop
      STL 7:14 PM
      Denver - St. Louis | Sun, Nov 15 | Frontier Airlines
      €40 €48
      17% off
      17% off
      €48 €40
    • Cheapest
      DEN 4:09 PM
      2h 5m
      Nonstop
      STL 7:14 PM
      Denver - St. Louis | Mon, Nov 16 | Frontier Airlines
      €40 €48
      17% off
      17% off
      €48 €40
    • Cheapest
      DEN 12:21 PM
      2h 2m
      Nonstop
      STL 3:23 PM
      Denver - St. Louis | Fri, Nov 13 | Frontier Airlines
      €40
      17% off
      €48 €40
    • Cheapest
      DEN 7:47 AM
      2h 10m
      Nonstop
      STL 10:57 AM
      Denver - St. Louis | Sun, Dec 13 | Frontier Airlines
      €40
      17% off
      €48 €40
    • Cheapest
      DEN 4:09 PM
      2h 5m
      Nonstop
      STL 7:14 PM
      Denver - St. Louis | Mon, Nov 9 | Frontier Airlines
      €40
      17% off
      €48 €40
    • Cheapest
      DEN 7:47 AM
      2h 10m
      Nonstop
      STL 10:57 AM
      Denver - St. Louis | Wed, Dec 9 | Frontier Airlines
      €40
      17% off
      €48 €40
    • Cheapest
      DEN 8:00 AM
      2h 4m
      Nonstop
      STL 11:04 AM
      Denver - St. Louis | Fri, Dec 11 | Frontier Airlines
      €40
      17% off
      €48 €40
    • Cheapest
      DEN 12:21 PM
      2h 2m
      Nonstop
      STL 3:23 PM
      Denver - St. Louis | Fri, Nov 20 | Frontier Airlines
      €40
      17% off
      €48 €40
    • DEN 1:00 PM
      17h 25m
      1 stop
      STL 2:00 PM
      Denver - St. Louis | Wed, Oct 28 | Normal Airline
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    • Cheapest nonstop
      DEN 4:09 PM
      2h 5m
      Nonstop
      STL 7:14 PM
      Denver - St. Louis | Mon, Nov 2 | Frontier Airlines
      €40 €48
      17% off
      17% off
      €48 €40
    • DEN 4:09 PM
      2h 5m
      Nonstop
      STL 7:14 PM
      Denver - St. Louis | Sun, Nov 15 | Frontier Airlines
      €40 €48
      17% off
      17% off
      €48 €40
    • DEN 4:09 PM
      2h 5m
      Nonstop
      STL 7:14 PM
      Denver - St. Louis | Mon, Nov 16 | Frontier Airlines
      €40 €48
      17% off
      17% off
      €48 €40
    • DEN 12:21 PM
      2h 2m
      Nonstop
      STL 3:23 PM
      Denver - St. Louis | Fri, Nov 13 | Frontier Airlines
      €40
      17% off
      €48 €40
    • DEN 7:47 AM
      2h 10m
      Nonstop
      STL 10:57 AM
      Denver - St. Louis | Sun, Dec 13 | Frontier Airlines
      €40
      17% off
      €48 €40
    • DEN 4:09 PM
      2h 5m
      Nonstop
      STL 7:14 PM
      Denver - St. Louis | Mon, Nov 9 | Frontier Airlines
      €40
      17% off
      €48 €40
    • DEN 7:47 AM
      2h 10m
      Nonstop
      STL 10:57 AM
      Denver - St. Louis | Wed, Dec 9 | Frontier Airlines
      €40
      17% off
      €48 €40
    • DEN 8:00 AM
      2h 4m
      Nonstop
      STL 11:04 AM
      Denver - St. Louis | Fri, Dec 11 | Frontier Airlines
      €40
      17% off
      €48 €40
    • DEN 12:21 PM
      2h 2m
      Nonstop
      STL 3:23 PM
      Denver - St. Louis | Fri, Nov 20 | Frontier Airlines
      €40
      17% off
      €48 €40
    • DEN 1:00 PM
      17h 25m
      1 stop
      STL 2:00 PM
      Denver - St. Louis | Wed, Oct 28 | Normal Airline
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    • Cheapest nonstop
      DEN 7:47 AM
      2h 10m
      Nonstop
      STL 10:57 AM
      Denver - St. Louis | Sat, Dec 5 | Frontier Airlines
      €40 €277
      86% off
      86% off
      €277 €40
    • DEN 4:09 PM
      2h 5m
      Nonstop
      STL 7:14 PM
      Denver - St. Louis | Sat, Oct 31 | Frontier Airlines
      €40 €277
      86% off
      86% off
      €277 €40
    • DEN 3:50 PM
      2h 4m
      Nonstop
      STL 6:54 PM
      Denver - St. Louis | Fri, Jan 1 | Frontier Airlines
      €40 €277
      86% off
      86% off
      €277 €40
    • DEN 7:37 AM
      2h 8m
      Nonstop
      STL 10:45 AM
      Denver - St. Louis | Thu, Nov 19 | Frontier Airlines
      €40
      86% off
      €277 €40
    • DEN 4:09 PM
      2h 5m
      Nonstop
      STL 7:14 PM
      Denver - St. Louis | Mon, Nov 16 | Frontier Airlines
      €40
      86% off
      €277 €40
    • DEN 4:09 PM
      2h 5m
      Nonstop
      STL 7:14 PM
      Denver - St. Louis | Fri, Nov 13 | Frontier Airlines
      €40
      86% off
      €277 €40
    • DEN 3:50 PM
      2h 4m
      Nonstop
      STL 6:54 PM
      Denver - St. Louis | Mon, Jan 4 | Frontier Airlines
      €40
      86% off
      €277 €40
    • DEN 7:47 AM
      2h 10m
      Nonstop
      STL 10:57 AM
      Denver - St. Louis | Fri, Dec 11 | Frontier Airlines
      €40
      86% off
      €277 €40
    • DEN 7:10 AM
      2h 10m
      Nonstop
      STL 10:20 AM
      Denver - St. Louis | Wed, Jan 6 | Frontier Airlines
      €40
      86% off
      €277 €40
    • DEN 1:00 PM
      17h 25m
      1 stop
      STL 2:00 PM
      Denver - St. Louis | Wed, Oct 28 | Normal Airline
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    • Cheapest nonstop
      DEN 4:09 PM
      2h 5m
      Nonstop
      STL 7:14 PM
      Denver - St. Louis | Sat, Oct 31 | Frontier Airlines
      €40 €277
      86% off
      86% off
      €277 €40
    • DEN 4:09 PM
      2h 5m
      Nonstop
      STL 7:14 PM
      Denver - St. Louis | Fri, Oct 30 | Frontier Airlines
      €69 €277
      75% off
      75% off
      €277 €69
    • DEN 9:35 AM
      2h 3m
      Nonstop
      STL 12:38 PM
      Denver - St. Louis | Tue, Oct 27 | United Airlines
      €114 €277
      59% off
      59% off
      €277 €114
    • DEN 5:54 PM
      2h 7m
      Nonstop
      STL 9:01 PM
      Denver - St. Louis | Sun, Nov 1 | United Airlines
      €215
      22% off
      €277 €215
    • DEN 12:21 PM
      2h 2m
      Nonstop
      STL 3:23 PM
      Denver - St. Louis | Wed, Oct 28 | Frontier Airlines
      €232
      16% off
      €277 €232
    • DEN 5:00 PM
      5h 54m
      1 stop
      STL 11:54 PM
      Denver - St. Louis | Mon, Nov 2 | Delta Air Lines
      €100
      64% off
      €277 €100
    • DEN 5:00 PM
      5h 54m
      1 stop
      STL 11:54 PM
      Denver - St. Louis | Sun, Nov 1 | Delta Air Lines
      €214
      23% off
      €277 €214
    • DEN 1:00 PM
      17h 25m
      1 stop
      STL 2:00 PM
      Denver - St. Louis | Wed, Oct 28 | Normal Airline
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    • DEN 12:21 PM
      2h 2m
      Nonstop
      STL 3:23 PM
      Denver - St. Louis | Fri, Nov 13 | Frontier Airlines
      €40 €48
      17% off
      17% off
      €48 €40
    • DEN 12:21 PM
      2h 2m
      Nonstop
      STL 3:23 PM
      Denver - St. Louis | Fri, Nov 20 | Frontier Airlines
      €40 €48
      17% off
      17% off
      €48 €40
    • DEN 1:55 PM
      2h 2m
      Nonstop
      STL 4:57 PM
      Denver - St. Louis | Wed, Nov 4 | United Airlines
      €114 €409
      72% off
      72% off
      €409 €114
    • DEN 1:55 PM
      2h 2m
      Nonstop
      STL 4:57 PM
      Denver - St. Louis | Sat, Oct 31 | United Airlines
      €114
      72% off
      €409 €114
    • DEN 1:55 PM
      2h 2m
      Nonstop
      STL 4:57 PM
      Denver - St. Louis | Fri, Nov 27 | United Airlines
      €147
      64% off
      €409 €147
    • DEN 1:55 PM
      2h 2m
      Nonstop
      STL 4:57 PM
      Denver - St. Louis | Fri, Nov 13 | United Airlines
      €190
      54% off
      €409 €190
    • DEN 1:55 PM
      2h 2m
      Nonstop
      STL 4:57 PM
      Denver - St. Louis | Fri, Nov 6 | United Airlines
      €213
      48% off
      €409 €213
    • DEN 1:55 PM
      2h 2m
      Nonstop
      STL 4:57 PM
      Denver - St. Louis | Sat, Nov 28 | United Airlines
      €231
      44% off
      €409 €231
    • DEN 12:21 PM
      2h 2m
      Nonstop
      STL 3:23 PM
      Denver - St. Louis | Wed, Oct 28 | Frontier Airlines
      €232
      16% off
      €277 €232
    • DEN 1:00 PM
      17h 25m
      1 stop
      STL 2:00 PM
      Denver - St. Louis | Wed, Oct 28 | Normal Airline
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Displayed flight fares from Denver to St. Louis are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Trip.com Price Insights: Flights from Denver International Airport to St. Louis Lambert International Airport

What is the cheapest month for one-way flights from Denver International Airport to St. Louis Lambert International Airport?

Data is based on average one-way flight prices from Denver International Airport to St. Louis Lambert International Airport in Trip.com's database over the past 12 months.

Based on Trip.com’s data from the past 12 months, if you’re looking for a low-cost one-way ticket from Denver International Airport to St. Louis Lambert International Airport, the best time to buy is in October, with an average price of €41. You’ll want to avoid November, when the average price can reach as high as €317.

€317
€179
€41
0
    Cheapest
  • €105
    Jul
  • €152
    Aug
  • €117
    Sep
  • €41
    Oct
  • €317
    Nov
  • €101
    Dec
  • €72
    Jan
  • €42
    Feb
  • €62
    Mar
  • €228
    Apr
  • €72
    May
  • €121
    Jun

What is the cheapest day of the week to fly from Denver International Airport to St. Louis Lambert International Airport?

The data is based on the past 12 months and shows the average ticket prices from Denver International Airport to St. Louis Lambert International Airport for each day of the week in the Trip.com database.

Based on Trip.com’s data from the past 12 months, the cheapest day to depart from Denver International Airport to St. Louis Lambert International Airport is Wednesday, with average fares typically lower than other days. You’ll want to avoid flying on Tuesday, as ticket prices are usually the highest that day.

€259
€182
€105
€28
    Cheapest
  • €146
    Mon
  • €259
    Tue
  • €105
    Wed
  • €176
    Thu
  • €189
    Fri
  • €196
    Sat
  • €185
    Sun

Which airline offers the cheapest flights from Denver International Airport to St. Louis Lambert International Airport?

The cheapest airline flying from Denver International Airport to St. Louis Lambert International Airport is Frontier Airlines (from €40) among 6 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Frontier Airlines
From €40
Delta Air Lines
From €80
American Airlines
From €88
United Airlines
From €121
Alaska Airlines
From €250
Hahn Air
From €343

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What is the flight schedule from Denver International Airport to St. Louis Lambert International Airport?

Check the schedule for flights from Denver to St. Louis and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule

  1. F93302

    Denver International Airport

    3:50 PM

    DEN

    2h 4m

    6:54 PM

    STL

    S - T - T F -
    Search

  2. F93600

    Denver International Airport

    10:38 AM

    DEN

    3h 11m

    Nonstop

    3:49 PM

    ATL

    S M T W T F S
    Search

  3. F94473

    Hartsfield–Jackson Atlanta International Airport

    4:51 PM

    ATL

    1h 49m

    Nonstop

    5:40 PM

    STL

    S - T - T - -

  4. F92015

    Denver International Airport

    7:28 AM

    DEN

    2h 2m

    Nonstop

    8:30 AM

    LAS

    - - - - - F -
    Search

  5. F93108

    Harry Reid Intl. Airport

    7:15 AM

    LAS

    3h 18m

    Nonstop

    12:33 PM

    STL

    S - - W T - S

  6. F93294

    Denver International Airport

    6:57 PM

    DEN

    3h 2m

    Nonstop

    11:59 PM

    ATL

    S M T W T F S
    Search

  7. F94473

    Hartsfield–Jackson Atlanta International Airport

    4:51 PM

    ATL

    1h 49m

    Nonstop

    5:40 PM

    STL

    S - T - T - -
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About Denver International Airport and St. Louis Lambert International Airport

Learn about Denver International Airport (DEN) and St. Louis Lambert International Airport (STL) — including location, terminals, transportation, and travel tips.

Flight distance 1,237.36 km
Cheapest one-way ticket price €40
Cheapest return ticket price €77

FAQs for Denver International Airport to St. Louis Lambert International Airport Flights

  • How long is the flight from Denver International Airport to St. Louis Lambert International Airport?

    Denver International Airport to St. Louis Lambert International Airport takes about 1 hour 43 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 6 daily flights from Denver International Airport (DEN) to St. Louis Lambert International Airport (STL).
  • The earliest flight from Denver International Airport to St. Louis Lambert International Airport departs at 05:50, and the last departs at 20:45, with about 28 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from Denver International Airport (DEN) to St. Louis Lambert International Airport (STL) is quite popular. Without considering departure times or holidays, tickets cost around €129 in November, the most expensive month to book this route.
  • The earliest flight departs from Denver International Airport (DEN) at 06:00 and arrives in St. Louis Lambert International Airport (STL) at 09:07.
  • The latest flight departs from Denver International Airport (DEN) at 20:45 and arrives in St. Louis Lambert International Airport (STL) at 23:58.
    • The distance from St. Louis Lambert International Airport to downtown is about 20 km. It takes about 40 minutes by taxi.
  • Frontier Airlines is a very popular airline operating an average of 2039 flights per month.
  • One-way flights from Denver International Airport to St. Louis Lambert International Airport currently start from €40, and round-trip fares start from €77. The current lowest fare is a Frontier Airlines flight departing on Mon, Nov 2; prices may vary depending on availability.
  • Yes. United Airlines and Frontier Airlines operate direct flights from Denver International Airport to St. Louis Lambert International Airport, with an average flight time of 1 hour 42 minutes, and around 80 weekly flights. Actual flight frequency may vary by season.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from Denver International Airport to St. Louis Lambert International Airport is €196. Prices may vary depending on the departure date, airline, and availability.
  • Frontier Airlines and Volaris are the most popular budget airlines flying from Denver International Airport to St. Louis Lambert International Airport, with one-way fares starting from €40. Compare final prices carefully, as baggage, seat selection and payment fees may apply.
  • Denver International Airport to St. Louis Lambert International Airport operates around 79 weekly flights, mainly by United Airlines and Frontier Airlines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Denver International Airport and St. Louis Lambert International Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

Popular Destinations

Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.