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Good to Know: Flights to STL
Useful information for finding cheap flights to Lambert St Louis International and booking your next trip
Cheapest Round Trip Flight
$421
Delta Airlines• 1 stop • 9h 14mMar 13 – Mar 16
The cheapest round trip flight from Philadelphia International to Lambert St Louis International is currently $421
Cheapest One way Flight
$175
Southwest Airlines• 1 stop• 12h 35mFeb 19
The cheapest one way flight from Tampa International to Lambert St Louis International is currently $175
Cheapest Direct Flight
$451
Southwest Airlines• nonstop• 4h 5mMar 13
The cheapest nonstop flight from Phoenix Sky Harbor International to Lambert St Louis International is currently $451
Fastest Flight
3h 50m
The fastest nonstop flight from Philadelphia International to Lambert St Louis International takes 3h 50m
Best Flight Deals to St Louis
Identify the most efficient round-trip flights to St Louis. We present options balancing cost and convenience for your return journey.
Mar 13 - Mar 16, Economy
Philadelphia → St Louis
9h 14m
12:59 PM - 5:53 PM • 1 stop
Philadelphia → St Louis
7h 38m
6:59 PM - 12:57 AM • 1 stop
Delta Airlines
Mar 13 - Mar 16, Economy
Philadelphia → St Louis
13h 45m
1:30 PM - 8:55 PM • 1 stop
Philadelphia → St Louis
10h 35m
5:20 PM - 12:55 AM • 1 stop
Southwest Airlines
Mar 13 - Mar 16, Economy
Philadelphia → St Louis
9h 3m
12:36 PM - 5:19 PM • 1 stop
Philadelphia → St Louis
3h 38m
6:00 AM - 9:18 AM • nonstop
American Airlines
Mar 13 - Mar 16, Economy
Philadelphia → St Louis
12h 9m
7:14 AM - 1:43 PM • 1 stop
Philadelphia → St Louis
3h 37m
2:00 PM - 5:17 PM • nonstop
American Airlines
Mar 13 - Mar 16, Economy
Philadelphia → St Louis
10h 32m
12:21 PM - 5:53 PM • 1 stop
Philadelphia → St Louis
6h 42m
6:57 PM - 11:59 PM • 1 stop
American Airlines
For travel requiring no set return, access available one-way flights to St Louis (STL). These options support extended stays or open-ended plans.
Maximize your time in St Louis, not in transit. Discover non-stop direct flights to STL for the quickest, most straightforward journey to the Strip.
Mar 13 - Mar 16, Economy
Phoenix → St Louis
4h 5m
8:05 PM - 12:50 AM • nonstop
Phoenix → St Louis
5h 30m
2:35 PM - 4:05 PM • nonstop
Southwest Airlines
Mar 13 - Mar 16, Economy
Phoenix → St Louis
4h 10m
5:00 AM - 9:50 AM • nonstop
Phoenix → St Louis
5h 35m
5:15 AM - 6:50 AM • nonstop
Southwest Airlines
Mar 13 - Mar 16, Economy
Philadelphia → St Louis
3h 53m
11:11 AM - 12:44 PM • nonstop
Philadelphia → St Louis
3h 37m
2:00 PM - 5:17 PM • nonstop
American Airlines
Mar 13 - Mar 16, Economy
Philadelphia → St Louis
3h 52m
9:20 PM - 10:52 PM • nonstop
Philadelphia → St Louis
3h 38m
6:00 AM - 9:18 AM • nonstop
American Airlines
Mar 13 - Mar 16, Economy
Philadelphia → St Louis
3h 50m
6:15 AM - 7:45 AM • nonstop
Philadelphia → St Louis
3h 25m
7:40 PM - 10:45 PM • nonstop
Southwest Airlines
Destination Airport Information
| IATA Code | STL |
| Name | Lambert St Louis International |
| City | St Louis |
| Country | US |
| Latitude | 38.74869918823242 |
| Longitude | -90.37000274658203 |
Popular Airlines
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