Flights
Hotels
From
To
1 traveler
Unsupported Browser!
Find Flights
Flights
Hotels
1 traveler
Unsupported Browser!
Find Flights

Cheap Flights from Denver to St Louis, MO, United States - DEN to STL

Popular flights from Denver to St Louis

If your flight days are flexible and you looking for a good deal, our charts on cheap flights provide some insight regarding affordable flight options for your next big adventure.

American Airlines
Departure Date Return Date Lowest Price
Mar 3, 2016 Mar 7, 2016 $235
Frontier Airlines
Departure Date Return Date Lowest Price
Feb 16, 2016 Feb 23, 2016 $108
Feb 17, 2016 Mar 2, 2016 $108
United Airlines
Departure Date Return Date Lowest Price
Apr 8, 2016 Apr 12, 2016 $205

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 $128.

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 $108 $568
7-14 days $178 $309
14-21 days $118 $227
21-30 days $113 $219
30-60 days $118 $211
60-90 days $118 $219
90+ days $118 $229

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
$148 $108 $108 $123 $138 $113 $163

Lowest Fares Chart By Month from Denver to St Louis

The chart below shows the lowest fare by month when flying from Denver to St Louis.

Month Origin Destination Carrier Depart Date Return Date Stops Price
February Denver St Louis Frontier 2/16/16 2/23/16 0 $108
March Denver St Louis Frontier 3/12/16 3/15/16 0 $113
April Denver St Louis Frontier 4/6/16 4/12/16 0 $118
May Denver St Louis Frontier 5/10/16 5/25/16 0 $118
June Denver St Louis Frontier 6/1/16 6/14/16 0 $123
July Denver St Louis Frontier 7/20/16 7/27/16 0 $173
August Denver St Louis Frontier 8/1/16 8/8/16 0 $218
September Denver St Louis United 9/15/16 9/20/16 0 $293

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
14 15 16 17 18 19 20
$308
21 22 23 24 25 26 27
$308 $193
28 29 1 2 3 4 5
$193 $158
6 7 8 9 10 11 12
$158 $113
13 14 15 16 17 18 19
$113 $173
20 21 22 23 24 25 26
$173

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 $240.

The average price for non-stop flights from Denver to St Louis is $159.

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 20:15 20:15
United 6 2 4 6 6 4 5 07:57 20:06

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 $99.

The average price for round trip flights from Denver to St Louis is $196.

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 4 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 37 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 81% 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)

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
Delta SLC 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 TUL 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, Frontier, Spirit, United $78
Denver to Dallas - Ft Worth American, Alaska, Frontier, Spirit, United $78
Denver to Atlanta American, Alaska, Frontier, Spirit, United $136
Denver to Los Angeles American, Alaska, Frontier, Spirit, United, Virgin America $94
Denver to Minneapolis - St Paul American, Alaska, Frontier, Spirit, Sun Country, United $98
Denver to Nashville American, Alaska, Frontier, United $162
Denver to Houston American, Frontier, Spirit, United $78
Denver to Detroit American, Frontier, Spirit, United $78
Denver to Kansas City Frontier, United $88
Denver to Orlando American, JetBlue, Frontier, Spirit, Sun Country, United $181
Denver to Las Vegas American, Alaska, Frontier, Spirit, United $86
Denver to Washington American, JetBlue, Frontier, United $162
Denver to New York American, JetBlue, Frontier, Spirit, Sun Country, United $181
Denver to Charlotte American, Frontier, United $150
Denver to Indianapolis American, Frontier, United $148
Denver to Cincinnati American, Alaska, Frontier, United $162
Denver to Springfield American, United $312
Denver to Milwaukee American, Frontier, United $128
Denver to Bloomington - Normal American $322
Denver to Louisville American, United $312
Denver to Memphis American, Alaska, Frontier, United $144
Denver to Little Rock American, Alaska, United $272
Denver to Madison American, Frontier, United $128

Cheap Domestic Flights to St Louis - STL

FlightsAirlineLowest Price
Colorado Springs to St Louis American, United $245
Hayden - Steamboat to St Louis American, Alaska, United $566
Montrose to St Louis American, United $412
Vail to St Louis American, United $466
Aspen to St Louis American, United Check Dates
Gunnison to St Louis American, Alaska, United Check Dates
Colorado Springs to Chicago American, United $403
Cheap Flights from Denver to St Louis, MO, United States, from $108 Round trip from DEN to STL