Search Flights to St Louis (STL)

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

$251

WNSouthwest Airlinesβ€’ 1 stop β€’ 10h 15m

Dec 18 – Dec 23

The cheapest round trip flight from Philadelphia International to Lambert St Louis International is currently $251

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Cheapest Direct Flight

$248

WNSouthwest Airlinesβ€’ nonstopβ€’ 3h 50m

Dec 18

The cheapest nonstop flight from Philadelphia International to Lambert St Louis International is currently $248

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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.

Dec 18 - Dec 23, Economy
WN
Philadelphia β†’ St Louis
10h 15m
3:20 PM - 8:35 PM β€’ 1 stop
WN
Philadelphia β†’ St Louis
3h 30m
8:10 AM - 11:20 AM β€’ nonstop
$251
Southwest Airlines
Dec 18 - Dec 23, Economy
WN
Philadelphia β†’ St Louis
12h
2:10 PM - 8:30 PM β€’ 2 stops
WN
Philadelphia β†’ St Louis
3h 30m
8:10 AM - 11:20 AM β€’ nonstop
$793
Southwest Airlines
Dec 18 - Dec 23, Economy
WN
Philadelphia β†’ St Louis
10h 15m
3:20 PM - 8:35 PM β€’ 1 stop
WN
Philadelphia β†’ St Louis
10h
4:50 PM - 11:50 PM β€’ 1 stop
$795
Southwest Airlines
Dec 18 - Dec 23, Economy
WN
Philadelphia β†’ St Louis
10h 55m
2:10 PM - 8:05 PM β€’ 1 stop
WN
Philadelphia β†’ St Louis
8h 50m
5:00 AM - 11:30 AM β€’ 1 stop
$795
Southwest Airlines
Dec 18 - Dec 23, Economy
UA
Philadelphia β†’ St Louis
8h 52m
2:50 PM - 7:22 PM β€’ 1 stop
UA
Philadelphia β†’ St Louis
8h 43m
11:05 AM - 5:28 PM β€’ 1 stop
$842
United Airlines
Dec 18 - Dec 23, Economy
DL
Philadelphia β†’ St Louis
8h 29m
2:24 PM - 6:33 PM β€’ 1 stop
DL
Philadelphia β†’ St Louis
7h 17m
5:13 PM - 10:50 PM β€’ 1 stop
$852
Delta Airlines

Compare & Book Cheapest Flights to St Louis, STL

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

Destination Airport Information

IATA CodeSTL
NameLambert St Louis International
CitySt Louis
CountryUS
Latitude38.74869918823242
Longitude-90.37000274658203

Popular Airlines

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