Cheap Flight Tickets from Denver (DEN) to St Louis (STL), Starting at $285

Good to Know: Cheapest and Fastest DEN - STL Flights

Useful information for finding best airline tickets from Denver International to Lambert St Louis International on your next trip.

Cheapest Round Trip Flight

$892

UA United Airlines • nonstop • 3h 27m

Oct 25 – Nov 01

The cheapest round trip flight from Denver to St Louis (DEN-STL-DEN) is currently $892

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Cheapest Direct Flight

$285

WN Southwest Airlines • nonstop • 3h 20m

Oct 25

The cheapest nonstop flight from Denver to St Louis (DEN-STL) is currently $285

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Fastest Flight

2h 35m

The fastest nonstop flight from Denver to St Louis (DEN-STL) takes 2h 35m

Top Airlines Flying from Denver to St Louis

Delta Airline, DL

Delta Airlines

United Airlines, UA

United Airlines

Alaska Airlines -AS

Alaska Airlines

Southwest Airlines-WN

Southwest Airlines

American Airlines, AA

American Airlines

Latest Flight Deals from Denver (DEN) to St Louis (STL)

Compare and book low fare round-trip air tickets from Denver to St Louis. Ideal for travelers with confirmed return itineraries.

Oct 25 - Nov 01, Economy
UA
Denver → St Louis
3h 27m
5:54 PM - 9:01 PM • nonstop
UA
Denver → St Louis
3h 51m
8:50 AM - 10:21 AM • nonstop
$892
United Airlines
Oct 25 - Nov 01, Economy
UA
Denver → St Louis
8h 59m
3:01 PM - 9:40 PM • 1 stop
UA
Denver → St Louis
3h 51m
4:39 PM - 6:10 PM • nonstop
$902
United Airlines
Oct 25 - Nov 01, Economy
UA
Denver → St Louis
3h 22m
1:55 PM - 4:57 PM • nonstop
UA
Denver → St Louis
10h 7m
6:15 AM - 11:22 AM • 1 stop
$902
United Airlines
Oct 25 - Nov 01, Economy
UA
Denver → St Louis
7h 38m
1:25 PM - 7:23 PM • 1 stop
UA
Denver → St Louis
3h 49m
1:40 PM - 3:09 PM • nonstop
$902
United Airlines
Oct 25 - Nov 01, Economy
DL
Denver → St Louis
8h 23m
6:05 AM - 12:08 PM • 1 stop
DL
Denver → St Louis
7h 21m
6:21 AM - 10:02 AM • 1 stop
$961
Delta Airlines
Oct 25 - Nov 01, Economy
AS
Denver → St Louis
17h 39m
12:00 PM - 11:59 PM • 1 stop
AS
Denver → St Louis
50h 14m
6:00 AM - 11:14 AM • 1 stop
$1406
Alaska Airlines

Fly from Denver to St Louis with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Denver to St Louis? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Denver to St Louis Flights

What are the airports in Denver?
DEN
What’s the most popular airline flying from DEN to STL?
The most popular airline flying from Denver to St Louis are
Can I fly from DEN to STL non-stop?
Yes, you can fly DEN to STL non-stop on
Which airlines fly nonstop between Denver and St Louis?
The non-stop flights between Denver and St Louis are .
What’s the earliest departure time from DEN to STL Airport?
The earliest flight leaves DEN at 6:05 am and lands in STL - Lambert St Louis International
What are the airports in St Louis?
STL
Can I make changes to my Denver to St Louis flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from DEN to STL?
Read the fare rules of the Denver to St Louis air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Denver and St Louis?
operate flights between Denver and St Louis
How long does a flight from Denver to St Louis take?
It takes approximately 2 hour to fly non-stop from DEN to STL, which is 769.57 miles by air.
Which airlines provide the cheapest flights from Denver (DEN) to St Louis (STL) ?
In the past couple of days, the cheapest tickets to STL from DEN were found on AS : USD 1406
Do I need a passport to fly between DEN and STL?
No
What’s the latest departure time from DEN to STL ?
The last flight leaves DEN at 5:54 pm

Denver (DEN) to St Louis (STL): Airport Information

Origin Airport Denver International , Denver, US
Destination Airport Lambert St Louis International , St Louis, US
Distance 770 miles

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