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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 £33 and round-trip from £64. Based on Trip.com's latest 7-day flight data.

    • Cheapest nonstop
      DEN 07:47
      2h 10m
      Direct
      STL 10:57
      Denver - St. Louis | Fri, Dec 11 | Frontier Airlines
      STL 19:54
      2h 31m
      Direct
      DEN 21:25
      St. Louis - Denver | Sat, Dec 12 | Frontier Airlines
      £64 £87
      26% off
      26% off
      £87 £64
    • DEN 07:37
      2h 8m
      Direct
      STL 10:45
      Denver - St. Louis | Thu, Nov 19 | Frontier Airlines
      STL 15:04
      2h 33m
      Direct
      DEN 16:37
      St. Louis - Denver | Sat, Nov 21 | Frontier Airlines
      £65 £87
      25% off
      25% off
      £87 £65
    • DEN 16:12
      2h 3m
      Direct
      STL 19:15
      Denver - St. Louis | Mon, Oct 26 | Frontier Airlines
      STL 19:59
      2h 31m
      Direct
      DEN 21:30
      St. Louis - Denver | Mon, Nov 2 | Frontier Airlines
      £66 £87
      24% off
      24% off
      £87 £66
    • DEN 16:09
      2h 5m
      Direct
      STL 19:14
      Denver - St. Louis | Sat, Oct 31 | Frontier Airlines
      STL 19:59
      2h 31m
      Direct
      DEN 21:30
      St. Louis - Denver | Mon, Nov 2 | Frontier Airlines
      £66
      24% off
      £87 £66
    • DEN 16:09
      2h 5m
      Direct
      STL 19:14
      Denver - St. Louis | Fri, Nov 13 | Frontier Airlines
      STL 19:59
      2h 31m
      Direct
      DEN 21:30
      St. Louis - Denver | Mon, Nov 16 | Frontier Airlines
      £66
      24% off
      £87 £66
    • DEN 12:21
      2h 2m
      Direct
      STL 15:23
      Denver - St. Louis | Wed, Nov 4 | Frontier Airlines
      STL 19:59
      2h 31m
      Direct
      DEN 21:30
      St. Louis - Denver | Sat, Nov 7 | Frontier Airlines
      £67
      23% off
      £87 £67
    • DEN 16:09
      2h 5m
      Direct
      STL 19:14
      Denver - St. Louis | Sat, Nov 7 | Frontier Airlines
      STL 19:59
      2h 31m
      Direct
      DEN 21:30
      St. Louis - Denver | Mon, Nov 9 | Frontier Airlines
      £67
      23% off
      £87 £67
    • DEN 15:50
      2h 4m
      Direct
      STL 18:54
      Denver - St. Louis | Sat, Dec 19 | Frontier Airlines
      STL 19:49
      2h 31m
      Direct
      DEN 21:20
      St. Louis - Denver | Mon, Dec 21 | Frontier Airlines
      £67
      23% off
      £87 £67
    • DEN 12:21
      2h 2m
      Direct
      STL 15:23
      Denver - St. Louis | Wed, Oct 28 | Frontier Airlines
      STL 19:59
      2h 31m
      Direct
      DEN 21:30
      St. Louis - Denver | Mon, Nov 2 | Frontier Airlines
      £68
      22% off
      £87 £68
    • DEN 13:00
      17h 25m
      1 stop
      STL 14:00
      Denver - St. Louis | Tue, Oct 27 | Normal Airline
      STL 15:00
      6h
      Direct
      DEN 16:00
      St. Louis - Denver | Thu, Oct 29 | Normal Airline
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    • Cheapest
      DEN 07:47
      2h 10m
      Direct
      STL 10:57
      Denver - St. Louis | Sat, Dec 5 | Frontier Airlines
      £33 £218
      85% off
      85% off
      £218 £33
    • DEN 16:09
      2h 5m
      Direct
      STL 19:14
      Denver - St. Louis | Sat, Oct 31 | Frontier Airlines
      £34 £39
      13% off
      13% off
      £39 £34
    • DEN 16:09
      2h 5m
      Direct
      STL 19:14
      Denver - St. Louis | Fri, Nov 13 | Frontier Airlines
      £34 £39
      13% off
      13% off
      £39 £34
    • DEN 16:09
      2h 5m
      Direct
      STL 19:14
      Denver - St. Louis | Sat, Nov 14 | Frontier Airlines
      £34
      13% off
      £39 £34
    • DEN 12:21
      2h 2m
      Direct
      STL 15:23
      Denver - St. Louis | Wed, Nov 11 | Frontier Airlines
      £34
      13% off
      £39 £34
    • DEN 07:47
      2h 10m
      Direct
      STL 10:57
      Denver - St. Louis | Fri, Dec 11 | Frontier Airlines
      £34
      13% off
      £39 £34
    • DEN 16:09
      2h 5m
      Direct
      STL 19:14
      Denver - St. Louis | Sat, Nov 7 | Frontier Airlines
      £34
      13% off
      £39 £34
    • DEN 07:47
      2h 10m
      Direct
      STL 10:57
      Denver - St. Louis | Mon, Dec 7 | Frontier Airlines
      £34
      13% off
      £39 £34
    • DEN 08:00
      2h 4m
      Direct
      STL 11:04
      Denver - St. Louis | Wed, Dec 9 | Frontier Airlines
      £34
      13% off
      £39 £34
    • DEN 13:00
      17h 25m
      1 stop
      STL 14:00
      Denver - St. Louis | Tue, Oct 27 | Normal Airline
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    • Cheapest nonstop
      DEN 07:47
      2h 10m
      Direct
      STL 10:57
      Denver - St. Louis | Sat, Dec 5 | Frontier Airlines
      £33 £218
      85% off
      85% off
      £218 £33
    • DEN 16:09
      2h 5m
      Direct
      STL 19:14
      Denver - St. Louis | Sat, Oct 31 | Frontier Airlines
      £34 £39
      13% off
      13% off
      £39 £34
    • DEN 16:09
      2h 5m
      Direct
      STL 19:14
      Denver - St. Louis | Fri, Nov 13 | Frontier Airlines
      £34 £39
      13% off
      13% off
      £39 £34
    • DEN 16:09
      2h 5m
      Direct
      STL 19:14
      Denver - St. Louis | Sat, Nov 14 | Frontier Airlines
      £34
      13% off
      £39 £34
    • DEN 12:21
      2h 2m
      Direct
      STL 15:23
      Denver - St. Louis | Wed, Nov 11 | Frontier Airlines
      £34
      13% off
      £39 £34
    • DEN 07:47
      2h 10m
      Direct
      STL 10:57
      Denver - St. Louis | Fri, Dec 11 | Frontier Airlines
      £34
      13% off
      £39 £34
    • DEN 16:09
      2h 5m
      Direct
      STL 19:14
      Denver - St. Louis | Sat, Nov 7 | Frontier Airlines
      £34
      13% off
      £39 £34
    • DEN 07:47
      2h 10m
      Direct
      STL 10:57
      Denver - St. Louis | Mon, Dec 7 | Frontier Airlines
      £34
      13% off
      £39 £34
    • DEN 08:00
      2h 4m
      Direct
      STL 11:04
      Denver - St. Louis | Wed, Dec 9 | Frontier Airlines
      £34
      13% off
      £39 £34
    • DEN 13:00
      17h 25m
      1 stop
      STL 14:00
      Denver - St. Louis | Tue, Oct 27 | Normal Airline
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    • Cheapest nonstop
      DEN 07:47
      2h 10m
      Direct
      STL 10:57
      Denver - St. Louis | Sat, Dec 5 | Frontier Airlines
      £33 £218
      85% off
      85% off
      £218 £33
    • DEN 16:09
      2h 5m
      Direct
      STL 19:14
      Denver - St. Louis | Sat, Oct 31 | Frontier Airlines
      £34 £218
      84% off
      84% off
      £218 £34
    • DEN 15:50
      2h 4m
      Direct
      STL 18:54
      Denver - St. Louis | Fri, Jan 1 | Frontier Airlines
      £34 £218
      84% off
      84% off
      £218 £34
    • DEN 07:37
      2h 8m
      Direct
      STL 10:45
      Denver - St. Louis | Thu, Nov 19 | Frontier Airlines
      £34
      84% off
      £218 £34
    • DEN 16:09
      2h 5m
      Direct
      STL 19:14
      Denver - St. Louis | Mon, Nov 16 | Frontier Airlines
      £34
      84% off
      £218 £34
    • DEN 16:09
      2h 5m
      Direct
      STL 19:14
      Denver - St. Louis | Fri, Nov 13 | Frontier Airlines
      £34
      84% off
      £218 £34
    • DEN 15:50
      2h 4m
      Direct
      STL 18:54
      Denver - St. Louis | Mon, Jan 4 | Frontier Airlines
      £34
      84% off
      £218 £34
    • DEN 07:47
      2h 10m
      Direct
      STL 10:57
      Denver - St. Louis | Fri, Dec 11 | Frontier Airlines
      £34
      84% off
      £218 £34
    • DEN 07:10
      2h 10m
      Direct
      STL 10:20
      Denver - St. Louis | Wed, Jan 6 | Frontier Airlines
      £34
      84% off
      £218 £34
    • DEN 13:00
      17h 25m
      1 stop
      STL 14:00
      Denver - St. Louis | Tue, Oct 27 | Normal Airline
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    • Cheapest nonstop
      DEN 16:09
      2h 5m
      Direct
      STL 19:14
      Denver - St. Louis | Sat, Oct 31 | Frontier Airlines
      £34 £321
      89% off
      89% off
      £321 £34
    • DEN 16:09
      2h 5m
      Direct
      STL 19:14
      Denver - St. Louis | Fri, Oct 30 | Frontier Airlines
      £58 £321
      82% off
      82% off
      £321 £58
    • DEN 09:35
      2h 3m
      Direct
      STL 12:38
      Denver - St. Louis | Tue, Oct 27 | United Airlines
      £95 £321
      70% off
      70% off
      £321 £95
    • DEN 17:54
      2h 7m
      Direct
      STL 21:01
      Denver - St. Louis | Sun, Nov 1 | United Airlines
      £180
      44% off
      £321 £180
    • DEN 12:21
      2h 2m
      Direct
      STL 15:23
      Denver - St. Louis | Wed, Oct 28 | Frontier Airlines
      £194
      40% off
      £321 £194
    • DEN 16:12
      2h 3m
      Direct
      STL 19:15
      Denver - St. Louis | Mon, Oct 26 | Frontier Airlines
      £285
      11% off
      £321 £285
    • DEN 17:00
      5h 54m
      1 stop
      STL 23:54
      Denver - St. Louis | Sun, Nov 1 | Delta Air Lines
      £179
      44% off
      £321 £179
    • DEN 13:00
      17h 25m
      1 stop
      STL 14:00
      Denver - St. Louis | Tue, Oct 27 | Normal Airline
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    • DEN 12:21
      2h 2m
      Direct
      STL 15:23
      Denver - St. Louis | Wed, Nov 11 | Frontier Airlines
      £34 £39
      13% off
      13% off
      £39 £34
    • DEN 12:21
      2h 2m
      Direct
      STL 15:23
      Denver - St. Louis | Wed, Nov 18 | Frontier Airlines
      £34 £39
      13% off
      13% off
      £39 £34
    • DEN 13:55
      2h 2m
      Direct
      STL 16:57
      Denver - St. Louis | Wed, Nov 4 | United Airlines
      £95 £436
      78% off
      78% off
      £436 £95
    • DEN 13:55
      2h 2m
      Direct
      STL 16:57
      Denver - St. Louis | Sat, Oct 31 | United Airlines
      £96
      78% off
      £436 £96
    • DEN 13:55
      2h 2m
      Direct
      STL 16:57
      Denver - St. Louis | Fri, Nov 27 | United Airlines
      £123
      72% off
      £436 £123
    • DEN 13:55
      2h 2m
      Direct
      STL 16:57
      Denver - St. Louis | Fri, Nov 13 | United Airlines
      £159
      64% off
      £436 £159
    • DEN 13:55
      2h 2m
      Direct
      STL 16:57
      Denver - St. Louis | Fri, Nov 6 | United Airlines
      £179
      59% off
      £436 £179
    • DEN 12:21
      2h 2m
      Direct
      STL 15:23
      Denver - St. Louis | Wed, Oct 28 | Frontier Airlines
      £194
      11% off
      £218 £194
    • DEN 13:55
      2h 2m
      Direct
      STL 16:57
      Denver - St. Louis | Sat, Nov 28 | United Airlines
      £194
      56% off
      £436 £194
    • DEN 13:00
      17h 25m
      1 stop
      STL 14:00
      Denver - St. Louis | Tue, Oct 27 | 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 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 one-way ticket prices from Denver International Airport to St. Louis Lambert International Airport for each month in the Trip.com database.

Based on Trip.com's data from the past 12 months, the cheapest one-way flights from Denver International Airport to St. Louis Lambert International Airport are usually in October, with an average price of £34. It is best to avoid November, when the average price can reach £265.

£265
£150
£34
0
    Cheapest
  • £88
    Jul
  • £127
    Aug
  • £98
    Sep
  • £34
    Oct
  • £265
    Nov
  • £85
    Dec
  • £60
    Jan
  • £35
    Feb
  • £52
    Mar
  • £191
    Apr
  • £60
    May
  • £101
    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 departure day from Denver International Airport to St. Louis Lambert International Airport is Wednesday, with average prices usually lower than other days. Avoid departing on Tuesday as prices are typically highest on that day.

£217
£153
£88
£24
    Cheapest
  • £122
    Mon
  • £217
    Tue
  • £88
    Wed
  • £147
    Thu
  • £158
    Fri
  • £164
    Sat
  • £155
    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 £34) among 6 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Frontier Airlines
From £34
Delta Air Lines
From £67
American Airlines
From £74
United Airlines
From £101
Alaska Airlines
From £209
Hahn Air
From £288

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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

    15:50

    DEN

    2h 4m

    18:54

    STL

    S - T - T F -
    Search

  2. F93600

    Denver International Airport

    10:38

    DEN

    3h 11m

    Direct

    15:49

    ATL

    S M T W T F S
    Search

  3. F94473

    Hartsfield–Jackson Atlanta International Airport

    16:51

    ATL

    1h 49m

    Direct

    17:40

    STL

    S - T - T - -

  4. F92015

    Denver International Airport

    07:28

    DEN

    2h 2m

    Direct

    08:30

    LAS

    S - - - - F -
    Search

  5. F93108

    Harry Reid International Airport

    07:15

    LAS

    3h 18m

    Direct

    12:33

    STL

    S - - W T - S

  6. F93294

    Denver International Airport

    18:57

    DEN

    3h 2m

    Direct

    23:59

    ATL

    S M T W T F S
    Search

  7. F94473

    Hartsfield–Jackson Atlanta International Airport

    16:51

    ATL

    1h 49m

    Direct

    17:40

    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 1,237.36km
Cheapest one-way ticket price £33
Cheapest return ticket price £64

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 44 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 £108 in November, the most expensive month to book this route.
    • The distance from St. Louis Lambert International Airport to downtown is about 20km, by taxi about 40 minutes.
  • 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 £34, and round-trip fares start from £64. The current lowest fare is a Frontier Airlines flight departing on Sat, Oct 31; 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 £164. 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 £34. 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.

Find Cheap Flights with Trip.com

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

Book with no extra fees

Prices displayed on this page are all-inclusive (including taxes, fuel surcharges, civil aviation development fund, etc.), with all fees confirmed before payment. Fees for luggage, meals, Wi-Fi, 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 have been updated within the last 24 hours—sometimes even in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the cancellation and change policies for each flight ticket during the booking process, including any fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply according to the airline's ticket policy.
Cancellation/change due to a flight schedule change:
If the flight schedule has changed 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 visit the customer support pages.