Southwest Airlines flights from STL to PHL
Find comprehensive Southwest Airlines flight information, schedules, and booking details for direct flights from STL to PHL. Southwest Airlines operates 3-9 flights daily flights on this route.• Flight Duration: 2h 04m - 2h 23m (average flight time)• Distance: 816 miles (1313 km) (air miles between airports)• Daily Flights: 3-9 flights (scheduled departures per day)
STL
PHL
FLIGHT TIME
2h 04m - 2h 23m
FLIGHT DISTANCE
816 miles (1313 km)
2h 5m - 2h 10m
08:10
21:10
816 miles (1313 km)
March
1 (Show)
43
Southwest Airlines Flight Schedule from STL to PHL
| Flight | Airline | Departure | Arrival | Aircraft |
|---|---|---|---|---|
WN3014 |  Southwest Airlines | 08:10 | 11:20:00 | Boeing 737-700 (winglets) Passenger/BBJ1 |
WN1991 | Southwest Airlines | 14:40 | 17:45:00 | Boeing 737-700 (winglets) Passenger/BBJ1 |
WN4441 | Southwest Airlines | 21:10 | 00:15:00 | Boeing 737-700 (winglets) Passenger/BBJ1 |
Southwest Airlines Monthly Flight Calendar
December 2025
Route Insights
Duration variability: Flight duration on this route can vary based on aircraft type, wind conditions, and airline scheduling. Average duration is 2h 04m - 2h 23m.
Pricing patterns: March typically offers lower prices due to reduced demand outside peak travel seasons.
Best departure times: Peak departure times are 8:00, 14:00, 21:00, offering more flight options and potentially better connections.
STL - PHL flight price statistics
$406
ApproximateThe numbers are average prices found based on user searches for direct flights between the airports. It's calculated from the cheapest prices found per month for a round-trip with 1 adult and can vary depending on the amount of data we have for this particular route.
$429
Jan$508
Feb$277
Mar$346
Apr$356
May$478
Jun$397
Jul$346
Aug$445
Sep$479
Oct$418
Nov$397
DecSouthwest Airlines Terminal Information
Terminal information for Southwest Airlines on this route is currently being updated. Please check back soon or contact the airports directly for terminal details.
Frequently Asked Questions about Southwest Airlines Flights
How many Southwest Airlines flights operate from STL to PHL?
Southwest Airlines operates 3 flights from STL to PHL.
What city does PHL airport serve?
PHL airport serves Philadelphia.
How long is the Southwest Airlines flight from STL to PHL?
The flight duration is approximately 2h 04m - 2h 23m.
What is the distance from STL to PHL?
The distance is 816 miles (1313 km).
What aircraft does Southwest Airlines use on this route?
Southwest Airlines uses Boeing 737-700 (winglets) Passenger/BBJ1 on this route.
Which other airlines operate on this route?
1 other airline operates on this route: American Airlines.
What are the earliest and latest Southwest Airlines flight departure times?
The earliest Southwest Airlines flight departs at 08:10 and the latest departs at 21:10.
What is the cheapest month to fly Southwest Airlines from STL to PHL?
March is typically the cheapest month to fly Southwest Airlines on this route.
What is the average price for a Southwest Airlines flight from STL to PHL?
The average price for a round-trip Southwest Airlines flight on this route is approximately $406. Prices can vary based on booking time and demand.
How many Southwest Airlines flights operate per week on this route?
Southwest Airlines operates approximately 43 flights per week from STL to PHL.