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Cheap Flights from Denver to St Louis, MO, United States - DEN to STL Last modified: May 30, 2016 12:58 AM

Popular flights from Denver to St Louis Last modified: May 30, 2016 12:58 AM

We’ve got the inside scoop on finding the best time to fly for the best price. Not sure when to travel for your next vacation? Find details below on when-to-fly and when-to-buy.

Alaska Airlines
Departure Date Return Date Lowest Price
Aug 25, 2016 Aug 28, 2016 $438
Sep 7, 2016 Sep 14, 2016 $438
American Airlines
Departure Date Return Date Lowest Price
Aug 25, 2016 Aug 30, 2016 $252
Aug 30, 2016 Sep 6, 2016 $252
Sep 7, 2016 Sep 14, 2016 $252
Frontier Airlines
Departure Date Return Date Lowest Price
Aug 18, 2016 Aug 23, 2016 $108
Aug 25, 2016 Aug 30, 2016 $108
Sep 7, 2016 Sep 14, 2016 $108
Sep 21, 2016 Sep 27, 2016 $108
United Airlines
Departure Date Return Date Lowest Price
Aug 18, 2016 Aug 23, 2016 $137
Aug 25, 2016 Aug 30, 2016 $137
Aug 30, 2016 Sep 6, 2016 $137
Sep 1, 2016 Sep 5, 2016 $137
Sep 7, 2016 Sep 14, 2016 $137

How Much Does it Cost to Fly from Denver to St Louis (DEN to STL)?

We have collected flight cost data from across the web for travel from Denver to St Louis, and have found the average flight price for this trip to be $149.

When Can I Buy the Cheapest Flight from Denver to St Louis (DEN to STL)?

Airlines can adjust prices for plane tickets from Denver to St Louis based on the day and time that you decide to book your flight. We have collected data from all airlines, and have discovered that the best days to book flights are Tuesdays, Wednesdays, and Saturdays. Read our article to find more information about the best time to buy airline tickets.

How far in advance should you book flights from Denver to St Louis

The chart below shows up-to-date information regarding how far in advance a flight from Denver to St Louis should be booked.

Non Stop versus 1-Stop
Advanced PurchaseNon StopOne Stop
< 7 days $308 $396
7-14 days $206 $325
14-21 days $174 $301
21-30 days $155 $269
30-60 days $155 $269
60-90 days $108 $194
90+ days $108 $194

Cheapest Day To Fly from Denver to St Louis

The chart below shows up-to-date information regarding the cheapest days to fly from Denver to St Louis.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$174 $155 $146 $108 $143 $123 $194

Cheapest Weekend Non-Stop Flights for the Next 30 Days from Denver to St Louis

If you're ready to take a trip in the next 30 days and want to fly on the weekend, you might be wondering which weekend is the cheapest to fly. The chart below shows up-to-date data regarding weekend flight prices from Denver to St Louis.

Next 30 Days

SunMonTueWedThuFriSat
29 30 31 1 2 3 4
$308
5 6 7 8 9 10 11
$308 $258
12 13 14 15 16 17 18
$258 $194
19 20 21 22 23 24 25
$194 $194
26 27 28 29 30 1 2
$194 $219
3 4 5 6 7 8 9
$219

Non-Stop vs Connecting Flights from Denver to St Louis (DEN to STL)

Your Denver to St Louis flight can be significantly cheaper by choosing a multi-stop airline ticket. Although these connecting flights sacrifice some convenience, on average, travelers save 20%-60% when they choose to fly multi-stop versus a direct flight.

The average price for connecting flights from Denver to St Louis is $294.

The average price for non-stop flights from Denver to St Louis is $122.

The chart below shows up to date information regarding non-stop flights from Denver to St Louis.

Nonstop Flight Details from Denver to St Louis
CarrierMonTueWedThuFriSatSunEarliest FlightLatest Flight
Frontier 1 1 1 1 1 1 1 20:25 20:25
United 5 6 6 6 6 4 5 07:55 20:00

Round Trip vs One Way Flights from Denver to St Louis (DEN to STL)

We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from Denver to St Louis. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison.

The average price for one way flights from Denver to St Louis is $133.

The average price for round trip flights from Denver to St Louis is $233.

Denver to St Louis Flight Questions

Below are some common questions that asked about this flight route:

Question: How long is a direct flight from Denver to St Louis?
Answer: The average Denver to St Louis flight time is 2 hours and 8 minutes.
Question: How many miles are there between Denver and St Louis?
Answer: The distance from Denver to St Louis is 767 miles.
Question: How common are direct flights from Denver to St Louis?
Answer: There are 41 direct flights from Denver to St Louis.
Question: What is the most popular airline for non-stop flights from Denver to St Louis?
Answer: United Airlines provides 82% of the non-stop flights between Denver and St Louis.
Question: What are the most popular connecting cities when flying from Denver to St Louis?
Answer: Minneapolis - St Paul, MN

Airlines Flying from Denver to St Louis (DEN to STL) Number of flights searched: 194Last modified: May 30, 2016 12:58 AM

Below are the different airlines that fly from Denver to St Louis with the average price of their plane tickets. Just remember that different airlines offer different levels of comfort and service, so consider convenience when choosing your airline.

Below is the full flight schedule summary of the next 30 days for flights from Denver to St Louis.

Denver to St Louis
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American DFW X X X X X X X
Alaska SEA X X X X X X X
Alaska SEA / PDX X X X X X X X
Delta DTW X X X X X X X
Frontier - X X X X X X X
United - X X X X X X X
United ORD X X X X X X X
Southwest - X X X X X X X
Southwest MCI X X X X X X X

Airports for Your Route

These pages contain information about the major airports in Denver and St Louis, so you can feel comfortable knowing how to get around whether you are about to take off or you just landed.

Cheap Domestic Flights from Denver - DEN

FlightsAirlineLowest Price
Denver to Chicago American, Alaska, Frontier, Spirit, United $117
Denver to Dallas - Ft Worth American, Alaska, Frontier, Spirit, United $77
Denver to Atlanta American, Alaska, Frontier, Spirit, United $148
Denver to Los Angeles American, Alaska, Frontier, Spirit, United, Virgin America $87
Denver to Minneapolis - St Paul American, Alaska, Frontier, Spirit, Sun Country, United $108
Denver to Nashville American, Frontier, United $141
Denver to Houston American, Frontier, Spirit, United, Great Lakes $108
Denver to Detroit American, Alaska, Frontier, Spirit, United $177
Denver to Kansas City Frontier, United $108
Denver to Orlando American, JetBlue, Frontier, Spirit, Sun Country, United $218
Denver to Las Vegas American, Alaska, Frontier, Allegiant, Spirit, United $87
Denver to Washington American, Alaska, JetBlue, Frontier, United $198
Denver to New York American, Alaska, JetBlue, Frontier, Spirit, Sun Country, United $224
Denver to Charlotte American, Alaska, Frontier, United $207
Denver to Indianapolis American, Frontier, United $161
Denver to Cincinnati American, Frontier, United $183
Denver to Springfield American, United $372
Denver to Milwaukee American, Alaska, Frontier, United $164
Denver to Bloomington - Normal American $354
Denver to Louisville American, Alaska, United $305
Denver to Memphis American, Alaska, Frontier, United $154
Denver to Little Rock American, United $289
Denver to Madison American, Alaska, Frontier, United $178

Cheap Domestic Flights to St Louis - STL

FlightsAirlineLowest Price
Colorado Springs to St Louis American, United $300
Hayden - Steamboat to St Louis American, United $418
Montrose to St Louis American, United $478
Vail to St Louis American, United Check Dates
Aspen to St Louis American, United Check Dates
Gunnison to St Louis United Check Dates
Colorado Springs to Chicago American, United $408
Cheap Flights from Denver to St Louis, MO, United States, from $108 Round trip from DEN to STL