Find Deals on Flights from Lambert-St Louis to Denver International (STL - DEN)

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Lambert-St Louis to Denver International

(Round-trip)
Depart: Mon Feb 27 2017 Return: Wed Mar 1 2017 Trip spans 3 days
Frontier
Frontier
STL
10:50a
DEN
1:28p
2h 38m
nonstop
DEN
2:55p
STL
4:57p
2h 02m
nonstop
Depart: Tue Feb 28 2017 Return: Wed Mar 1 2017 Trip spans 2 days
Frontier
Frontier
STL
10:50a
DEN
1:28p
2h 38m
nonstop
DEN
2:55p
STL
4:57p
2h 02m
nonstop
Depart: Tue Mar 7 2017 Return: Thu Mar 9 2017 Trip spans 3 days
Frontier
Frontier
STL
10:50a
DEN
1:22p
2h 32m
nonstop
DEN
2:55p
STL
4:57p
2h 02m
nonstop
Depart: Fri Feb 24 2017 Return: Tue Feb 28 2017 Trip spans 5 days
Major Airline
Major Airline
STL
5:50a
DEN
8:28a
2h 38m
nonstop
DEN
9:55a
STL
11:57a
2h 02m
nonstop
Depart: Mon Mar 13 2017 Return: Tue Mar 14 2017 Trip spans 2 days
Frontier
Frontier
STL
11:50a
DEN
2:22p
2h 32m
nonstop
DEN
3:55p
STL
5:57p
2h 02m
nonstop
Depart: Tue Mar 14 2017 Return: Tue Mar 21 2017 Trip spans 8 days
Frontier
Frontier
STL
11:50a
DEN
2:22p
2h 32m
nonstop
DEN
3:55p
STL
5:57p
2h 02m
nonstop
Depart: Sat Apr 8 2017 Return: Tue Apr 11 2017 Trip spans 4 days
Delta
Delta
STL
11:19a
DEN
4:20p
5h 01m
1 stop
DEN
7:49a
STL
4:25p
8h 36m
1 stop
Depart: Tue May 23 2017 Return: Tue May 30 2017 Trip spans 8 days
American Airlines
American Airlines
STL
1:00a
DEN
6:09a
5h 09m
1 stop
DEN
11:00a
STL
6:55p
7h 55m
1 stop
Depart: Tue Mar 21 2017 Return: Tue Mar 28 2017 Trip spans 8 days
Frontier
Frontier
STL
11:50a
DEN
2:22p
2h 32m
nonstop
DEN
3:55p
STL
5:57p
2h 02m
nonstop
Depart: Wed Mar 22 2017 Return: Tue Mar 28 2017 Trip spans 7 days
Frontier
Frontier
STL
11:50a
DEN
2:22p
2h 32m
nonstop
DEN
3:55p
STL
5:57p
2h 02m
nonstop
Depart: Tue Mar 28 2017 Return: Wed Mar 29 2017 Trip spans 2 days
Frontier
Frontier
STL
11:50a
DEN
2:22p
2h 32m
nonstop
DEN
3:55p
STL
5:57p
2h 02m
nonstop
Depart: Wed Jun 7 2017 Return: Tue Jun 13 2017 Trip spans 7 days
United
United
STL
3:20a
DEN
5:46a
2h 26m
nonstop
DEN
11:50a
STL
1:50p
2h 00m
nonstop
Depart: Tue Apr 25 2017 Return: Tue May 2 2017 Trip spans 8 days
Frontier
Frontier
STL
9:50a
DEN
12:18p
2h 28m
nonstop
DEN
3:59p
STL
6:07p
2h 08m
nonstop
Depart: Mon Mar 20 2017 Return: Tue Mar 28 2017 Trip spans 9 days
Frontier
Frontier
STL
11:50a
DEN
2:22p
2h 32m
nonstop
DEN
3:55p
STL
5:57p
2h 02m
nonstop
Depart: Mon Mar 27 2017 Return: Tue Mar 28 2017 Trip spans 2 days
Frontier
Frontier
STL
11:50a
DEN
2:22p
2h 32m
nonstop
DEN
3:55p
STL
5:57p
2h 02m
nonstop
Depart: Wed Mar 29 2017 Return: Thu Mar 30 2017 Trip spans 2 days
Frontier
Frontier
STL
11:50a
DEN
2:22p
2h 32m
nonstop
DEN
3:55p
STL
5:57p
2h 02m
nonstop
Depart: Wed Apr 5 2017 Return: Fri Apr 7 2017 Trip spans 3 days
Frontier
Frontier
STL
11:50a
DEN
2:18p
2h 28m
nonstop
DEN
3:55p
STL
5:57p
2h 02m
nonstop
Depart: Tue Apr 18 2017 Return: Fri Apr 21 2017 Trip spans 4 days
Frontier
Frontier
STL
11:50a
DEN
2:18p
2h 28m
nonstop
DEN
3:59p
STL
6:07p
2h 08m
nonstop
Depart: Tue Aug 8 2017 Return: Sat Aug 12 2017 Trip spans 5 days
Major Airline
Major Airline
STL
10:30p
DEN
6:45a
8h 15m
1 stop
DEN
1:00a
STL
9:16a
8h 16m
1 stop
Depart: Fri Jun 9 2017 Return: Tue Jun 13 2017 Trip spans 5 days
United
United
STL
3:50p
DEN
6:12p
2h 22m
nonstop
DEN
11:50a
STL
1:50p
2h 00m
nonstop
Direct flights STL to DEN on United
Flight # Depart STL Arrive DEN Sun Mon Tue Wed Thu Fri Sat Valid Between
4483 5:45 am 7:17 am Feb 17 - Mar 8
4503 5:45 am 7:11 am Mar 9 - Mar 9
4503 5:50 am 7:12 am Mar 10 - Mar 10
4503 5:50 am 7:12 am Mar 11 - Mar 11
4503 5:50 am 7:12 am Mar 12 - Apr 3
4503 5:50 am 7:12 am Mar 14 - Apr 1
4574 7:28 am 9:02 am Mar 1 - Mar 8
4505 7:30 am 8:56 am Mar 9 - Mar 10
4505 7:30 am 8:56 am Mar 12 - Apr 3
4505 8:50 am 10:16 am Mar 11 - Mar 11
4505 8:50 am 10:16 am Mar 14 - Apr 1
4695 8:50 am 10:21 am Mar 9 - Mar 10
4695 8:50 am 10:21 am Mar 13 - Apr 3
4695 8:50 am 10:21 am Mar 12 - Apr 2
4562 8:52 am 10:23 am Feb 28 - Mar 7
4726 8:52 am 10:28 am Mar 6 - Mar 8
4726 8:52 am 10:28 am Feb 26 - Mar 3
4530 10:52 am 12:23 pm Mar 4 - Mar 4
4726 10:53 am 12:29 pm Mar 5 - Mar 5
5340 10:53 am 12:29 pm Feb 17 - Mar 8
3610 11:25 am 12:50 pm Mar 13 - Mar 22
3610 11:25 am 12:50 pm Mar 16 - Mar 16
3610 11:25 am 12:50 pm Mar 10 - Mar 10
3610 11:25 am 12:50 pm Mar 23 - Mar 31
4643 11:25 am 12:50 pm Mar 12 - Apr 2
3610 11:30 am 12:55 pm Mar 9 - Mar 9
4643 11:35 am 1:00 pm Mar 18 - Apr 1
4643 11:35 am 1:00 pm Mar 11 - Mar 11
4481 4:40 pm 6:07 pm Mar 11 - Mar 11
4481 4:40 pm 6:07 pm Mar 18 - Mar 25
4481 4:40 pm 6:07 pm Mar 9 - Mar 10
4481 4:40 pm 6:07 pm Mar 14 - Mar 28
4481 4:40 pm 6:07 pm Mar 12 - Apr 3
4481 4:41 pm 6:08 pm Mar 15 - Mar 29
4615 4:43 pm 6:15 pm Mar 4 - Mar 4
4481 4:48 pm 6:15 pm Feb 16 - Mar 8
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

St. Louis
$57
Destination

Denver
$57
Airlines Airline reviews

131 travelers who booked a flight from St. Louis to Denver rated their chosen airlines with an average of 5.8.

Overall
6.1
Boarding
6.5
Crew
7.1
Comfort
5.6
Food
4.4
Entertainment
4.3