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Denver International Airport to St. Louis Lambert International Airport flight
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Denver International Airport to St. Louis Lambert International Airport Flights Info

Cheapest one-way
MXN$759
Frontier Airlines Frontier Airlines 2h 4m · Direct Wed, Dec 16
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Cheapest return
MXN$1,578
Frontier Airlines Frontier Airlines 2h 10m · Direct Sat, Jan 2 - Sun, Jan 3
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Best time to book
October
Cheapest
Recommended airlines
Frontier Airlines Frontier AirlinesCheapest· From MXN$759 Frontier Airlines Frontier AirlinesMost booked

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 MXN$759 and round-trip from MXN$1,578. Based on Trip.com's latest 7-day flight data.

    • Cheapest nonstop
      DEN 07:47
      2h 10m
      Direct
      STL 10:57
      Denver - St. Louis | Sat, Jan 2 | Frontier Airlines
      STL 19:54
      2h 31m
      Direct
      DEN 21:25
      St. Louis - Denver | Sun, Jan 3 | Frontier Airlines
      MXN$1,578 MXN$2,639
      40% off
      40% off
      MXN$2,639 MXN$1,578
    • DEN 07:37
      2h 8m
      Direct
      STL 10:45
      Denver - St. Louis | Fri, Dec 11 | Frontier Airlines
      STL 15:04
      2h 33m
      Direct
      DEN 16:37
      St. Louis - Denver | Sun, Dec 13 | Frontier Airlines
      MXN$1,589 MXN$2,639
      40% off
      40% off
      MXN$2,639 MXN$1,589
    • DEN 16:12
      2h 3m
      Direct
      STL 19:15
      Denver - St. Louis | Tue, Nov 17 | Frontier Airlines
      STL 19:59
      2h 31m
      Direct
      DEN 21:30
      St. Louis - Denver | Tue, Nov 24 | Frontier Airlines
      MXN$1,623 MXN$2,639
      38% off
      38% off
      MXN$2,639 MXN$1,623
    • DEN 16:09
      2h 5m
      Direct
      STL 19:14
      Denver - St. Louis | Sun, Nov 22 | Frontier Airlines
      STL 19:59
      2h 31m
      Direct
      DEN 21:30
      St. Louis - Denver | Tue, Nov 24 | Frontier Airlines
      MXN$1,628
      38% off
      MXN$2,639 MXN$1,628
    • DEN 16:09
      2h 5m
      Direct
      STL 19:14
      Denver - St. Louis | Sat, Dec 5 | Frontier Airlines
      STL 19:59
      2h 31m
      Direct
      DEN 21:30
      St. Louis - Denver | Tue, Dec 8 | Frontier Airlines
      MXN$1,634
      38% off
      MXN$2,639 MXN$1,634
    • DEN 12:21
      2h 2m
      Direct
      STL 15:23
      Denver - St. Louis | Thu, Nov 26 | Frontier Airlines
      STL 19:59
      2h 31m
      Direct
      DEN 21:30
      St. Louis - Denver | Sun, Nov 29 | Frontier Airlines
      MXN$1,659
      37% off
      MXN$2,639 MXN$1,659
    • DEN 16:09
      2h 5m
      Direct
      STL 19:14
      Denver - St. Louis | Sun, Nov 29 | Frontier Airlines
      STL 19:59
      2h 31m
      Direct
      DEN 21:30
      St. Louis - Denver | Tue, Dec 1 | Frontier Airlines
      MXN$1,659
      37% off
      MXN$2,639 MXN$1,659
    • DEN 15:50
      2h 4m
      Direct
      STL 18:54
      Denver - St. Louis | Sun, Jan 10 | Frontier Airlines
      STL 19:49
      2h 31m
      Direct
      DEN 21:20
      St. Louis - Denver | Tue, Jan 12 | Frontier Airlines
      MXN$1,659
      37% off
      MXN$2,639 MXN$1,659
    • DEN 12:21
      2h 2m
      Direct
      STL 15:23
      Denver - St. Louis | Thu, Nov 19 | Frontier Airlines
      STL 19:59
      2h 31m
      Direct
      DEN 21:30
      St. Louis - Denver | Tue, Nov 24 | Frontier Airlines
      MXN$1,662
      37% off
      MXN$2,639 MXN$1,662
    • DEN 13:00
      17h 25m
      1 stop
      STL 14:00
      Denver - St. Louis | Wed, Nov 18 | Normal Airline
      STL 15:00
      6h
      Direct
      DEN 16:00
      St. Louis - Denver | Fri, Nov 20 | Normal Airline
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    • Cheapest
      DEN 08:00
      2h 4m
      Direct
      STL 11:04
      Denver - St. Louis | Wed, Dec 16 | Frontier Airlines
      MXN$759 MXN$1,402
      46% off
      46% off
      MXN$1,402 MXN$759
    • DEN 07:47
      2h 10m
      Direct
      STL 10:57
      Denver - St. Louis | Sat, Dec 5 | Frontier Airlines
      MXN$812 MXN$1,402
      42% off
      42% off
      MXN$1,402 MXN$812
    • DEN 16:09
      2h 5m
      Direct
      STL 19:14
      Denver - St. Louis | Sun, Nov 22 | Frontier Airlines
      MXN$823 MXN$1,146
      28% off
      28% off
      MXN$1,146 MXN$823
    • DEN 16:09
      2h 5m
      Direct
      STL 19:14
      Denver - St. Louis | Sat, Dec 5 | Frontier Airlines
      MXN$823
      28% off
      MXN$1,146 MXN$823
    • DEN 16:09
      2h 5m
      Direct
      STL 19:14
      Denver - St. Louis | Sun, Dec 6 | Frontier Airlines
      MXN$823
      28% off
      MXN$1,146 MXN$823
    • DEN 12:21
      2h 2m
      Direct
      STL 15:23
      Denver - St. Louis | Thu, Dec 3 | Frontier Airlines
      MXN$823
      28% off
      MXN$1,146 MXN$823
    • DEN 07:47
      2h 10m
      Direct
      STL 10:57
      Denver - St. Louis | Sat, Jan 2 | Frontier Airlines
      MXN$823
      28% off
      MXN$1,146 MXN$823
    • DEN 16:09
      2h 5m
      Direct
      STL 19:14
      Denver - St. Louis | Sun, Nov 29 | Frontier Airlines
      MXN$823
      28% off
      MXN$1,146 MXN$823
    • DEN 07:10
      2h 10m
      Direct
      STL 10:20
      Denver - St. Louis | Wed, Jan 6 | Frontier Airlines
      MXN$823
      41% off
      MXN$1,402 MXN$823
    • DEN 13:00
      17h 25m
      1 stop
      STL 14:00
      Denver - St. Louis | Wed, Nov 18 | Normal Airline
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    • Cheapest nonstop
      DEN 08:00
      2h 4m
      Direct
      STL 11:04
      Denver - St. Louis | Wed, Dec 16 | Frontier Airlines
      MXN$759 MXN$1,402
      46% off
      46% off
      MXN$1,402 MXN$759
    • DEN 07:47
      2h 10m
      Direct
      STL 10:57
      Denver - St. Louis | Sat, Dec 5 | Frontier Airlines
      MXN$812 MXN$1,402
      42% off
      42% off
      MXN$1,402 MXN$812
    • DEN 16:09
      2h 5m
      Direct
      STL 19:14
      Denver - St. Louis | Sun, Nov 22 | Frontier Airlines
      MXN$823 MXN$1,146
      28% off
      28% off
      MXN$1,146 MXN$823
    • DEN 16:09
      2h 5m
      Direct
      STL 19:14
      Denver - St. Louis | Sat, Dec 5 | Frontier Airlines
      MXN$823
      28% off
      MXN$1,146 MXN$823
    • DEN 16:09
      2h 5m
      Direct
      STL 19:14
      Denver - St. Louis | Sun, Dec 6 | Frontier Airlines
      MXN$823
      28% off
      MXN$1,146 MXN$823
    • DEN 12:21
      2h 2m
      Direct
      STL 15:23
      Denver - St. Louis | Thu, Dec 3 | Frontier Airlines
      MXN$823
      28% off
      MXN$1,146 MXN$823
    • DEN 07:47
      2h 10m
      Direct
      STL 10:57
      Denver - St. Louis | Sat, Jan 2 | Frontier Airlines
      MXN$823
      28% off
      MXN$1,146 MXN$823
    • DEN 16:09
      2h 5m
      Direct
      STL 19:14
      Denver - St. Louis | Sun, Nov 29 | Frontier Airlines
      MXN$823
      28% off
      MXN$1,146 MXN$823
    • DEN 07:10
      2h 10m
      Direct
      STL 10:20
      Denver - St. Louis | Wed, Jan 6 | Frontier Airlines
      MXN$823
      41% off
      MXN$1,402 MXN$823
    • DEN 13:00
      17h 25m
      1 stop
      STL 14:00
      Denver - St. Louis | Wed, Nov 18 | Normal Airline
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    • Cheapest nonstop
      DEN 08:00
      2h 4m
      Direct
      STL 11:04
      Denver - St. Louis | Wed, Dec 16 | Frontier Airlines
      MXN$759 MXN$3,948
      81% off
      81% off
      MXN$3,948 MXN$759
    • DEN 07:47
      2h 10m
      Direct
      STL 10:57
      Denver - St. Louis | Sat, Dec 5 | Frontier Airlines
      MXN$812 MXN$3,948
      79% off
      79% off
      MXN$3,948 MXN$812
    • DEN 15:50
      2h 4m
      Direct
      STL 18:54
      Denver - St. Louis | Fri, Jan 1 | Frontier Airlines
      MXN$823 MXN$3,948
      79% off
      79% off
      MXN$3,948 MXN$823
    • DEN 07:37
      2h 8m
      Direct
      STL 10:45
      Denver - St. Louis | Thu, Nov 19 | Frontier Airlines
      MXN$823
      79% off
      MXN$3,948 MXN$823
    • DEN 15:50
      2h 4m
      Direct
      STL 18:54
      Denver - St. Louis | Mon, Jan 4 | Frontier Airlines
      MXN$823
      79% off
      MXN$3,948 MXN$823
    • DEN 07:10
      2h 10m
      Direct
      STL 10:20
      Denver - St. Louis | Wed, Jan 6 | Frontier Airlines
      MXN$823
      79% off
      MXN$3,948 MXN$823
    • DEN 07:47
      2h 10m
      Direct
      STL 10:57
      Denver - St. Louis | Mon, Dec 7 | Frontier Airlines
      MXN$828
      79% off
      MXN$3,948 MXN$828
    • DEN 07:47
      2h 10m
      Direct
      STL 10:57
      Denver - St. Louis | Sat, Dec 12 | Frontier Airlines
      MXN$828
      79% off
      MXN$3,948 MXN$828
    • DEN 07:47
      2h 10m
      Direct
      STL 10:57
      Denver - St. Louis | Mon, Dec 14 | Frontier Airlines
      MXN$828
      79% off
      MXN$3,948 MXN$828
    • DEN 13:00
      17h 25m
      1 stop
      STL 14:00
      Denver - St. Louis | Wed, Nov 18 | Normal Airline
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    • DEN 11:08
      4h 23m
      1 stop
      STL 16:31
      Denver - St. Louis | Tue, Nov 17 | Delta Air Lines
      MXN$4,698 MXN$11,139
      57% off
      57% off
      MXN$11,139 MXN$4,698
    • DEN 17:52
      2h 7m
      Direct
      STL 20:59
      Denver - St. Louis | Tue, Nov 17 | United Airlines
      MXN$6,864 MXN$11,139
      38% off
      38% off
      MXN$11,139 MXN$6,864
    • DEN 12:21
      2h 2m
      Direct
      STL 15:23
      Denver - St. Louis | Wed, Nov 18 | Frontier Airlines
      MXN$3,689 MXN$11,139
      67% off
      67% off
      MXN$11,139 MXN$3,689
    • DEN 06:30
      4h 51m
      1 stop
      STL 12:21
      Denver - St. Louis | Thu, Nov 19 | Delta Air Lines
      MXN$4,445
      60% off
      MXN$11,139 MXN$4,445
    • DEN 07:37
      2h 8m
      Direct
      STL 10:45
      Denver - St. Louis | Thu, Nov 19 | Frontier Airlines
      MXN$823
      93% off
      MXN$11,139 MXN$823
    • DEN 18:11
      4h 50m
      1 stop
      STL 00:01
      Denver - St. Louis | Thu, Nov 19 | American Airlines
      MXN$3,212
      71% off
      MXN$11,139 MXN$3,212
    • DEN 07:55
      2h 8m
      Direct
      STL 11:03
      Denver - St. Louis | Fri, Nov 20 | Frontier Airlines
      MXN$4,725
      57% off
      MXN$11,139 MXN$4,725
    • DEN 16:14
      6h 8m
      1 stop
      STL 23:22
      Denver - St. Louis | Fri, Nov 20 | Delta Air Lines
      MXN$8,020
      28% off
      MXN$11,139 MXN$8,020
    • DEN 13:00
      17h 25m
      1 stop
      STL 14:00
      Denver - St. Louis | Wed, Nov 18 | Normal Airline
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    • DEN 12:21
      2h 2m
      Direct
      STL 15:23
      Denver - St. Louis | Thu, Dec 3 | Frontier Airlines
      MXN$823 MXN$1,146
      28% off
      28% off
      MXN$1,146 MXN$823
    • DEN 12:21
      2h 2m
      Direct
      STL 15:23
      Denver - St. Louis | Thu, Dec 10 | Frontier Airlines
      MXN$825 MXN$1,146
      28% off
      28% off
      MXN$1,146 MXN$825
    • DEN 12:21
      2h 2m
      Direct
      STL 15:23
      Denver - St. Louis | Wed, Nov 18 | Frontier Airlines
      MXN$3,689 MXN$9,739
      62% off
      62% off
      MXN$9,739 MXN$3,689
    • DEN 13:55
      2h 2m
      Direct
      STL 16:57
      Denver - St. Louis | Sat, Nov 28 | United Airlines
      MXN$4,787
      51% off
      MXN$9,739 MXN$4,787
    • DEN 13:55
      2h 2m
      Direct
      STL 16:57
      Denver - St. Louis | Thu, Nov 19 | United Airlines
      MXN$4,803
      51% off
      MXN$9,739 MXN$4,803
    • DEN 13:55
      2h 2m
      Direct
      STL 16:57
      Denver - St. Louis | Wed, Nov 25 | United Airlines
      MXN$5,364
      45% off
      MXN$9,739 MXN$5,364
    • DEN 13:55
      2h 2m
      Direct
      STL 16:57
      Denver - St. Louis | Wed, Nov 18 | United Airlines
      MXN$5,492
      44% off
      MXN$9,739 MXN$5,492
    • DEN 13:55
      2h 2m
      Direct
      STL 16:57
      Denver - St. Louis | Fri, Nov 27 | United Airlines
      MXN$5,625
      42% off
      MXN$9,739 MXN$5,625
    • DEN 13:55
      2h 2m
      Direct
      STL 16:57
      Denver - St. Louis | Fri, Nov 20 | United Airlines
      MXN$7,012
      28% off
      MXN$9,739 MXN$7,012
    • DEN 13:00
      17h 25m
      1 stop
      STL 14:00
      Denver - St. Louis | Wed, Nov 18 | 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.

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 MXN$759) among 1 carriers operating this route. Based on Trip.com's latest 7-day flight data.
easyJet logo easyJet Wizz Air UK logo Wizz Air UK British Airways logo British Airways Jet2.com logo Jet2.com Virgin Atlantic logo Virgin Atlantic
Frontier Airlines logo Frontier Airlines

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 MXN$837. It is best to avoid November, when the average price can reach MXN$6,555.

MXN$6,555
MXN$3,696
MXN$837
0
    Cheapest
  • MXN$2,175
    Jul
  • MXN$3,141
    Aug
  • MXN$2,413
    Sep
  • MXN$837
    Oct
  • MXN$6,555
    Nov
  • MXN$2,089
    Dec
  • MXN$1,479
    Jan
  • MXN$862
    Feb
  • MXN$1,287
    Mar
  • MXN$4,712
    Apr
  • MXN$1,487
    May
  • MXN$2,490
    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 Tuesday, with average prices usually lower than other days. Avoid departing on Saturday as prices are typically highest on that day.

MXN$4,062
MXN$3,026
MXN$1,989
MXN$953
  • MXN$3,316
    Mon
  • MXN$1,989
    Tue
  • MXN$2,165
    Wed
  • MXN$3,642
    Thu
  • MXN$3,112
    Fri
  • MXN$4,062
    Sat
  • MXN$3,971
    Sun

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 W T F -
    Search

  2. DL2544

    Denver International Airport

    05:40

    DEN

    1h 35m

    Direct

    07:15

    SLC

    S M T W T F S
    Search

  3. DL2455

    Salt Lake City International Airport

    09:30

    SLC

    2h 53m

    Direct

    13:23

    STL

    S M T W T F S

  4. DL1553

    Denver International Airport

    12:45

    DEN

    1h 33m

    Direct

    14:18

    SLC

    S M T W T F S
    Search

  5. DL2666

    Salt Lake City International Airport

    20:45

    SLC

    2h 51m

    Direct

    00:36

    STL

    S M T W T F S

  6. F92015

    Denver International Airport

    06:41

    DEN

    2h 2m

    Direct

    07:43

    LAS

    - - - W T F S
    Search

  7. F93108

    Harry Reid International Airport

    09:50

    LAS

    3h 26m

    Direct

    15:16

    STL

    S - - W - F S

  8. F94646

    Denver International Airport

    06:40

    DEN

    3h 44m

    Direct

    12:24

    MCO

    S - - W T F S
    Search

  9. F92635

    Orlando International Airport

    21:33

    MCO

    2h 43m

    Direct

    23:16

    STL

    S - - W - F -

  10. F92520

    Denver International Airport

    19:20

    DEN

    3h 33m

    Direct

    00:53

    MCO

    S M T W T F S
    Search

  11. F92629

    Orlando International Airport

    18:25

    MCO

    2h 46m

    Direct

    20:11

    STL

    - - - - T - -

  12. F92520

    Denver International Airport

    19:20

    DEN

    3h 33m

    Direct

    00:53

    MCO

    S M T W T F S
    Search

  13. F92635

    Orlando International Airport

    21:33

    MCO

    2h 43m

    Direct

    23:16

    STL

    S - - W - F -
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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 42 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 5 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 06:30, and the last departs at 19:20, with about 10 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 MXN$3,578 in December, 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 MXN$823, and round-trip fares start from MXN$1,578. The current lowest fare is a Frontier Airlines flight departing on Sun, Nov 22; 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 39 minutes, and around 63 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 MXN$3,887. 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 MXN$823. Compare final prices carefully, as baggage, seat selection and payment fees may apply.
  • Denver International Airport to St. Louis Lambert International Airport operates around 63 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.