Compare live prices for STL to PHL. Use the search panel
to change origin, destination, passengers, cabin and trip type instantly.
STL → PHLApprox. 1306.01 km11 May 2026Live inventory
✈ Flight Search
Modify your route
From
To
Depart
Return
Adults
Children
Infants
Cabin
Trip Type
STL→PHL
Sort By
💰 Cheapest
⚡ Fastest
🕐 Earliest
🎚️ Filters
Stops Reset
0
0
0
Max Price Reset
Up to ₹5,00,000
Departure Time Reset
🌙 Night 12am–6am
🌅 Morning 6am–12pm
☀️ Afternoon 12pm–6pm
🌆 Evening 6pm–12am
Fare Type
Airlines All
Loading…
Select Fare
—
—
per person · incl. taxes
Stops Reset
0
0
0
Max Price Reset
Up to ₹5,00,000
Departure Time Reset
🌙 Night 12am–6am
🌅 Morning 6am–12pm
☀️ Afternoon 12pm–6pm
🌆 Evening 6pm–12am
Fare Type
Airlines All
Loading…
Showing 25
of 130
live flights
Frontier Airlines
F9-2636
16:19
05/11/2026
STL
St Louis Lambert International Airport
16h 40m
1 Stop
⏱ MCO · 10h 27mMCO Airport
08:59
05/12/2026
+1
PHL
Philadelphia International Airport
₹22,377
per person
✕ Non-refundable
American Airlines
AA-1308
06:29
05/11/2026
STL
St Louis Lambert International Airport
3h 16m
Non-stop
09:45
05/11/2026
PHL
Philadelphia International Airport
₹22,437
per person
✕ Non-refundable24 fare options
American Airlines
AA-3130
13:29
05/11/2026
STL
St Louis Lambert International Airport
3h 20m
Non-stop
16:49
05/11/2026
PHL
Philadelphia International Airport
₹22,437
per person
✓ Refundable24 fare options
Southwest Airlines
WN-4504
10:15
05/11/2026
STL
St Louis Lambert International Airport
3h 10m
Non-stop
13:25
05/11/2026
PHL
Philadelphia International Airport
₹23,216
per person
✕ Non-refundable9 fare options
Southwest Airlines
WN-3727
13:35
05/11/2026
STL
St Louis Lambert International Airport
3h 10m
Non-stop
16:45
05/11/2026
PHL
Philadelphia International Airport
₹23,216
per person
✕ Non-refundable9 fare options
Southwest Airlines
WN-3022
19:55
05/11/2026
STL
St Louis Lambert International Airport
3h 10m
Non-stop
23:05
05/11/2026
PHL
Philadelphia International Airport
₹23,216
per person
✕ Non-refundable9 fare options
Delta Air Lines
DL-2822
18:04
05/11/2026
STL
St Louis Lambert International Airport
5h 3m
1 Stop
⏱ DTW · 0h 53mDTW Airport
23:07
05/11/2026
PHL
Philadelphia International Airport
₹23,232
per person
✕ Non-refundable3 fare options
Delta Air Lines
DL-1371
13:59
05/11/2026
STL
St Louis Lambert International Airport
5h 28m
1 Stop
⏱ DTW · 1h 15mDTW Airport
19:27
05/11/2026
PHL
Philadelphia International Airport
₹23,232
per person
✕ Non-refundable3 fare options
Delta Air Lines
DL-1393
19:01
05/11/2026
STL
St Louis Lambert International Airport
5h 56m
1 Stop
⏱ ATL · 1h 11mATL Airport
00:57
05/12/2026
+1
PHL
Philadelphia International Airport
₹23,232
per person
✕ Non-refundable3 fare options
American Airlines
AA-2943
18:54
05/11/2026
STL
St Louis Lambert International Airport
5h 46m
1 Stop
⏱ CLT · 0h 52mCLT Airport
00:40
05/12/2026
+1
PHL
Philadelphia International Airport
₹23,355
per person
✓ Refundable24 fare options
American Airlines
AA-2958
14:12
05/11/2026
STL
St Louis Lambert International Airport
6h 35m
1 Stop
⏱ CLT · 1h 48mCLT Airport
20:47
05/11/2026
PHL
Philadelphia International Airport
₹23,355
per person
✕ Non-refundable24 fare options
American Airlines
AA-3128
05:51
05/11/2026
STL
St Louis Lambert International Airport
5h 48m
1 Stop
⏱ ORD · 1h 9mORD Airport
11:39
05/11/2026
PHL
Philadelphia International Airport
₹23,355
per person
✓ Refundable22 fare options
American Airlines
AA-6399
16:30
05/11/2026
STL
St Louis Lambert International Airport
5h 54m
1 Stop
⏱ ORD · 1h 5mORD Airport
22:24
05/11/2026
PHL
Philadelphia International Airport
₹23,355
per person
✓ Refundable24 fare options
American Airlines
AA-418
17:21
05/11/2026
STL
St Louis Lambert International Airport
6h 38m
1 Stop
⏱ ORD · 1h 55mORD Airport
23:59
05/11/2026
PHL
Philadelphia International Airport
₹23,355
per person
✓ Refundable23 fare options
American Airlines
AA-6399
16:30
05/11/2026
STL
St Louis Lambert International Airport
7h 29m
1 Stop
⏱ ORD · 2h 40mORD Airport
23:59
05/11/2026
PHL
Philadelphia International Airport
₹23,355
per person
✓ Refundable23 fare options
American Airlines
AA-6447
14:33
05/11/2026
STL
St Louis Lambert International Airport
7h 51m
1 Stop
⏱ ORD · 3h 7mORD Airport
22:24
05/11/2026
PHL
Philadelphia International Airport
₹23,355
per person
✓ Refundable23 fare options
Delta Air Lines
DL-1485
17:20
05/11/2026
STL
St Louis Lambert International Airport
7h 37m
1 Stop
⏱ ATL · 2h 56mATL Airport
00:57
05/12/2026
+1
PHL
Philadelphia International Airport
₹23,464
per person
✕ Non-refundable2 fare options
Frontier Airlines
F9-4567
20:08
05/11/2026
STL
St Louis Lambert International Airport
9h 29m
1 Stop
⏱ DEN · 2h 18mDEN Airport
05:37
05/12/2026
+1
PHL
Philadelphia International Airport
₹24,517
per person
✕ Non-refundable🔥 Last 2 seats
Southwest Airlines
WN-4489
05:40
05/11/2026
STL
St Louis Lambert International Airport
4h 55m
1 Stop
⏱ MDW · 0h 50mMDW Airport
10:35
05/11/2026
PHL
Philadelphia International Airport
₹25,033
per person
✕ Non-refundable9 fare options
Southwest Airlines
WN-3816
15:25
05/11/2026
STL
St Louis Lambert International Airport
8h 20m
1 Stop
⏱ MCO · 2h 15mMCO Airport
23:45
05/11/2026
PHL
Philadelphia International Airport
₹25,033
per person
✕ Non-refundable9 fare options
Southwest Airlines
WN-1764
16:40
05/11/2026
STL
St Louis Lambert International Airport
5h 5m
1 Stop
⏱ MDW · 0h 55mMDW Airport
21:45
05/11/2026
PHL
Philadelphia International Airport
₹25,220
per person
✓ Refundable8 fare options
Southwest Airlines
WN-826
13:45
05/11/2026
STL
St Louis Lambert International Airport
8h 0m
1 Stop
⏱ MDW · 3h 50mMDW Airport
21:45
05/11/2026
PHL
Philadelphia International Airport
₹25,220
per person
✓ Refundable8 fare options
Southwest Airlines
WN-5047
14:20
05/11/2026
STL
St Louis Lambert International Airport
9h 25m
1 Stop
⏱ MCO · 3h 25mMCO Airport
23:45
05/11/2026
PHL
Philadelphia International Airport
₹25,220
per person
✓ Refundable8 fare options
Southwest Airlines
WN-2952
15:00
05/11/2026
STL
St Louis Lambert International Airport
9h 35m
1 Stop
⏱ DEN · 2h 40mDEN Airport
00:35
05/12/2026
+1
PHL
Philadelphia International Airport
₹25,220
per person
✓ Refundable8 fare options
American Airlines
AA-2444
07:05
05/11/2026
STL
St Louis Lambert International Airport
7h 20m
1 Stop
⏱ ORD · 2h 41mORD Airport
14:25
05/11/2026
PHL
Philadelphia International Airport
₹25,230
per person
✓ Refundable21 fare options
😕 No flights match your filters.
St. Louis (STL)
📍 St Louis Lambert International Airport
🌍 United States
🕐 GMT -6
📐 Latitude: 38.748697
📐 Longitude: -90.370003
Philadelphia (PHL)
📍 Philadelphia International Airport
🌍 United States
🕐 GMT -5
📐 Latitude: 39.87189865112305
📐 Longitude: -75.24109649658203
✈ Distance: St. Louis,USA to Philadelphia,USA — 1306.01 km
📅 Results on this page are loaded for 11 May 2026. Click View all flights for the complete live search.
St. Louis to Philadelphia — what to expect when booking
The STL–PHL route is served by multiple carriers throughout the year.
Fares on this route can move quickly — a price available now may not be there 30 minutes later.
If your dates are flexible, try shifting your departure by a day or two using the date strip above.
Mid-week departures often show lower base fares compared to weekend starts on many routes.
The distance between St. Louis,USA and Philadelphia,USA is approximately
1306.01 km.
Before you book
Compare nearby dates
The date strip above lets you scan nearby fares without restarting the search.
Open full search for more control
Route page shows a limited live set. Full search opens the complete inventory with fresh results.
Check fare details
Each result shows baggage, refundability and fare details before you proceed.
❓ Frequently asked questions — St. Louis to Philadelphia flights
Generally yes — fares on most routes are most competitive around 4–6 weeks before departure. Booking earlier usually means better availability and a lower base fare when your dates are fixed.
The straight-line distance between St. Louis,USA (STL) and Philadelphia,USA (PHL) is approximately 1306.01 km. Actual flying distance may vary slightly depending on routing.
Non-stop availability on this route varies by airline schedule and season. Use the filters below to quickly check whether direct options are available on your selected date.
Mid-week departures often show lower prices than weekend travel on many routes. Use the date strip above to compare nearby days quickly.