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Good to Know: Flights from DEN
Useful information for finding cheap flights from Denver International and booking your next trip
Cheapest Round Trip Flight
$73
Frontier Airlines• nonstop • 3h 32mApr 19 – Apr 20
The cheapest round trip flight from Denver International to Lambert St Louis International is currently $73
Cheapest One way Flight
$171
Frontier Airlines• 1 stop• 30h 54mApr 22
The cheapest one way flight from Denver International to Philadelphia International is currently $171
Cheapest Direct Flight
$236
United Airlines• nonstop• 6h 42mSep 04
The cheapest nonstop flight from Denver International to Logan International is currently $236
Fastest Flight
3h 32m
The fastest nonstop flight from Denver International to Lambert St Louis International takes 3h 32m
Best Flight Deals from Denver
Compare and secure budget round-trip fares from Denver. Solutions designed for travel with a predetermined return date.
Apr 19 - Apr 20, Economy
Denver → St Louis
3h 32m
- • nonstop
Denver → St Louis
8h 53m
- • 1 stop
Frontier Airlines
Apr 19 - Apr 20, Economy
Denver → St Louis
5h 30m
10:25 AM - 2:55 PM • 1 stop
Denver → St Louis
7h 35m
7:50 PM - 11:45 PM • 1 stop
Southwest Airlines
Apr 19 - Apr 20, Economy
Denver → St Louis
9h 5m
10:10 AM - 4:55 PM • 1 stop
Denver → St Louis
6h 40m
3:50 PM - 6:50 PM • 1 stop
Southwest Airlines
Apr 19 - Apr 20, Economy
Denver → St Louis
20h 54m
10:00 AM - 9:00 PM • 1 stop
Denver → St Louis
11h 44m
9:55 PM - 11:30 AM • 1 stop
Frontier Airlines
Apr 19 - Apr 20, Economy
Denver → St Louis
10h 6m
4:30 PM - 11:36 PM • 1 stop
Denver → St Louis
8h 59m
3:25 PM - 8:04 PM • 1 stop
Delta Airlines
Explore your options for one-way flight tickets from Denver. Facilitates travel when a fixed return is not required.
For immediate travel needs, view the latest last-minute flights from Denver. Updated availability for urgent departures.
Apr 19 - Apr 20, Economy
Denver → St Louis
3h 32m
- • nonstop
Denver → St Louis
8h 53m
- • 1 stop
Frontier Airlines
Apr 19 - Apr 20, Economy
Denver → St Louis
5h 30m
10:25 AM - 2:55 PM • 1 stop
Denver → St Louis
7h 35m
7:50 PM - 11:45 PM • 1 stop
Southwest Airlines
Apr 19 - Apr 20, Economy
Denver → St Louis
9h 5m
10:10 AM - 4:55 PM • 1 stop
Denver → St Louis
6h 40m
3:50 PM - 6:50 PM • 1 stop
Southwest Airlines
Apr 19 - Apr 20, Economy
Denver → St Louis
20h 54m
10:00 AM - 9:00 PM • 1 stop
Denver → St Louis
11h 44m
9:55 PM - 11:30 AM • 1 stop
Frontier Airlines
Apr 19 - Apr 20, Economy
Denver → St Louis
10h 6m
4:30 PM - 11:36 PM • 1 stop
Denver → St Louis
8h 59m
3:25 PM - 8:04 PM • 1 stop
Delta Airlines
To minimize travel time, find optimal direct flights from DEN. Eliminate connections and arrive straight at your destination.
Sep 04 - Sep 12, Economy
Denver → Boston
6h 42m
3:56 PM - 9:58 PM • nonstop
Denver → Boston
7h 17m
5:08 PM - 7:45 PM • nonstop
United Airlines
Sep 04 - Sep 12, Economy
Denver → Boston
5h 55m
2:20 PM - 8:15 PM • nonstop
Denver → Boston
7h
5:40 AM - 8:00 AM • nonstop
Southwest Airlines
Sep 04 - Sep 12, Economy
Denver → Boston
6h 40m
6:30 PM - 12:30 AM • nonstop
Denver → Boston
7h 5m
3:55 PM - 6:20 PM • nonstop
Southwest Airlines
Sep 04 - Sep 12, Economy
Denver → Boston
6h 40m
11:59 PM - 5:59 AM • nonstop
Denver → Boston
7h 25m
7:55 AM - 10:40 AM • nonstop
United Airlines
Sep 04 - Sep 12, Economy
Denver → Boston
6h 47m
5:35 PM - 11:42 PM • nonstop
Denver → Boston
7h 17m
5:08 PM - 7:45 PM • nonstop
United Airlines
Origin Airport Information
| IATA Code | DEN |
| Name | Denver International |
| City | Denver |
| Country | US |
| Latitude | 39.861698150634766 |
| Longitude | -104.6729965209961 |
Popular Airlines
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