How long does the flight from Philadelphia to St. Louis take?

Flight time from Philadelphia (PHL) to St. Louis (STL) depends on routing, aircraft type, and whether the flight is direct or connecting. A direct flight typically reflects great-circle distance plus winds, while one-stop options can add several hours depending on the layover airport. Check the exact duration in the search results above, where we show block time per itinerary along with stop count.

Which airlines fly from Philadelphia to St. Louis?

Airline availability for PHL to STL changes by season and sometimes week to week as carriers adjust capacity. Our search above pulls live schedules and returns the airlines currently selling this route, both direct and connecting. Codeshare and interline itineraries are included, so you may see results operated by one carrier but sold by another.

Are there direct flights from Philadelphia to St. Louis?

Direct (nonstop) availability on PHL to STL varies by date, day of week, and season. Busy city pairs usually have multiple daily nonstops, while thinner routes may only have direct service a few days per week or only during peak seasons. Use our search above with flexible dates to see which days actually have nonstop options.

What is the cheapest month to fly from Philadelphia to St. Louis?

Prices on PHL to STL shift with seasonality, school holidays, and major events at both ends. Our 12-month price calendar below the search results shows the lowest fare found per departure date, which makes it easy to spot the cheapest weeks at a glance. Flexibility of a few days around your target date often unlocks significantly lower fares.

Philadelphia to St. Louis flights

Direct and connecting flights from Philadelphia (PHL) to St. Louis (STL). Compare airlines, aircraft, and fares.

Distance: 1,306 km (812 mi)
Flight time: ~1h 52m
Airlines: 2
Aircraft types: 4

Airlines flying PHL → STL

Airline	Aircraft types	Observations
Southwest Airlines	2	2
American Airlines	1	1

Aircraft on this route

Boeing 737 — 1 operator
Airbus A321 — 1 operator
Boeing 737 — 1 operator
Bombardier CRJ — 1 operator

Airport details

Departure: Philadelphia International Airport (PHL)

City: Philadelphia
Country: United States
IATA / ICAO: PHL / KPHL

Arrival: St Louis Lambert International Airport (STL)

City: St. Louis
Country: United States
IATA / ICAO: STL / KSTL

Operating airlines

American Airlines (AA)
Southwest Airlines (WN)

Distance: 1309 km. Duration: 158 minutes.

Other routes from Philadelphia

Other routes to St. Louis

Frequently asked questions

How many airlines fly PHL to STL?

2 airlines operate the PHL to STL route in our 90-day observed dataset.

What aircraft fly the PHL-STL route?

The most commonly observed aircraft on PHL to STL include: Boeing 737, Airbus A321, Boeing 737.

How long is the Philadelphia to St. Louis flight?

The estimated flight time from Philadelphia (PHL) to St. Louis (STL) is approximately 1h 52m, based on a cruise speed of 850 km/h.

What's the distance from Philadelphia to St. Louis?

The great-circle distance from Philadelphia (PHL) to St. Louis (STL) is approximately 1,306 km (812 miles).

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