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  1. Flights
  2. United States
  3. Philadelphia, PA
  4. St Louis, MO - Philadelphia, PA

Cheap Flights from St Louis, MO (STL) to Philadelphia, PA (PHL)

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Discover the cheapest flights from St Louis, MO to Philadelphia, PA
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Tue, May 12 - Wed, May 13
Frontier Airlines
Frontier Airlines1 stop
STL - PHL
Frontier Airlines
Frontier Airlines1 stop
PHL - STL
158$
149$
Prime price per passenger
Sat, Apr 11 - Mon, Apr 13
Frontier Airlines
Frontier Airlines1 stop
STL - PHL
Frontier Airlines
Frontier Airlines1 stop
PHL - STL
158$
149$
Prime price per passenger
Tue, Apr 14 - Tue, Apr 14
Frontier Airlines
Frontier Airlines1 stop
STL - PHL
Frontier Airlines
Frontier Airlines1 stop
PHL - STL
159$
150$
Prime price per passenger
Sun, May 3 - Sat, May 9
Frontier Airlines
Frontier Airlines1 stop
STL - PHL
Frontier Airlines
Frontier Airlines1 stop
PHL - STL
238$
226$
Prime price per passenger
Tue, Mar 24 - Wed, Mar 25
Frontier Airlines
Frontier Airlines1 stop
STL - PHL
American Airlines
American AirlinesDirect
PHL - STL
261$
Prime price per passenger
Sat, May 23 - Sat, May 30
American Airlines
American AirlinesDirect
STL - PHL
American Airlines
American AirlinesDirect
PHL - STL
443$
Prime price per passenger
Thu, Apr 2
Frontier Airlines
Frontier Airlines1 stop
STL - PHL
79$
77$
Prime price per passenger
Fri, May 8
Frontier Airlines
Frontier Airlines1 stop
STL - PHL
79$
77$
Prime price per passenger
Tue, Apr 14
American Airlines
American Airlines1 stop
STL - PHL
151$
136$
Prime price per passenger
Wed, May 20
American Airlines
American Airlines1 stop
STL - PHL
-11 %
153$
136$
Prime price per passenger
The prices shown on this page were available within the last 20 days for the specified periods and should not be considered the final price offered. Please note that availability and prices are subject to change.

Cheapest time to fly from St Louis, MO to Philadelphia, PA

If you’re planning to fly this route soon, keep in mind that the lowest fares are usually available at the beginning of April. Take advantage of this period to save on your flight tickets and make the most of your trip. Please note that prices may change after your search.
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week: Apr 6 - Apr 12
Flights from just $170
$240
$186
$180
$182
$170
$188
$191
$232
$182
$185
$276
$310
MarchAprilMay
Flying Time6 h and 9 mWhen flying from St Louis, MO to Philadelphia, PA, this can take around 6 h and 9 m in flying time, however this flight duration can vary due to other factors
Cheapest flight$77The best price for flights from St Louis, MO to Philadelphia, PA offered by eDreams, which have been found by our customers in the last 3 days
Origin airportSt. Louis Lambert International AirportWhen flying from St Louis, MO to Philadelphia, PA
Destination airportPhiladelphia International AirportFor the route from St Louis, MO to Philadelphia, PA
Peak seasonMarchMarch is the busiest time to fly from St Louis, MO to Philadelphia, PA according to search data results from our customers
Airlines operating this routeAmerican AirlinesAirline(s) that fly from St Louis, MO to Philadelphia, PA
One-way average Price275.20A flight from St Louis, MO to Philadelphia, PA at eDreams will cost around 275.20, this being based on prices of the previous 6 months of data
Best time to bookMarchJuly is one of the most frequent times to fly to Philadelphia, PA from St Louis, MO according to real data from our customers
Distance: 808 miles
St Louis, MO airports
Lambert-St Louis Internatl (STL)How far from city center: 12 miles
Philadelphia, PA airports
Philadelphia International Airport (PHL)How far from city center: 6 miles
Mercer County (TTN)How far from city center: 29 miles

Are you planning to travel to Philadelphia, PA for vacations, business or family visits? eDreams offers you the cheapest flights and best deals departing from St Louis, MO. With our fast search engine you will get a large selection of airfares from standard and low cost airlines worldwide and easily book your tickets for this route. If you are flexible we help you identify the cheapest day to fly to Philadelphia, PA and if you need to leave soon you can check our most convenient last minute fares. Read all the useful information about your next destination and proceed to the reservation, indicating your flight dates and completing your travel booking with hotels and car rental!

Frequently asked questions about flights from St Louis, MO to Philadelphia, PA

What are the benefits of booking flexible flight tickets?
Using the flexible flight ticket, you're guaranteed a refund or a rebooking option (without fees) in case of flight cancellations when travelling to United States. At eDreams have you covered!
On average, how much is the price of a flight from St Louis, MO to Philadelphia, PA?
When you fly from St Louis, MO to Philadelphia, PA the average price is 275.20. However, this price depends on many other factors such as seasonality or how far in advance the route has been booked.
For flights from St Louis, MO to Philadelphia, PA, how can I find the cheapest price?
The cheapest price for a flight from St Louis, MO to Philadelphia, PA is $77. At eDreams we use different machine learned based methodologies to find our costumers the best option available, considering airline combinations, stopovers and direct flights as well as different criteria for inbound and outbound journeys.
When booking, when is the best time to get the best prices for flights from St Louis, MO to Philadelphia, PA?
The most popular months to book a trip from St Louis, MO to Philadelphia, PA are June, September and August, based on the searches of our customers.
When is the best time to travel from St Louis, MO to Philadelphia, PA?
The best time of the year to visit Philadelphia, PA depends on lots of personal preferences, especially the price. Regarding popularity, July is the best month to fly to Philadelphia, PA from St Louis, MO in terms of searches from our customers, followed by August and September. If you prefer to avoid the busy season and get away from the crowds March, April and December are the months with fewer searches for St Louis, MO - Philadelphia, PA.
How long does the flight from St Louis, MO to Philadelphia, PA take?
Flight length from St Louis, MO to Philadelphia, PA is around 6 h and 9 m on average, at an average distance of 808.14 mi, for flights for the route (which may have 1 or more stops in other cities in between).

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