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Cheap Flights from Philadelphia to St Louis, MO, United States - PHL to STL

Popular flights from Philadelphia to St Louis

If your flight days are flexible and you looking for a good deal, our charts on cheap flights provide some insight regarding affordable flight options for your next big adventure.

American Airlines
Departure Date Return Date Lowest Price
Apr 23, 2016 Apr 25, 2016 $317
United Airlines
Departure Date Return Date Lowest Price
Apr 23, 2016 Apr 25, 2016 $317

How Much Does it Cost to Fly from Philadelphia to St Louis (PHL to STL)?

We have collected flight cost data from across the web for travel from Philadelphia to St Louis, and have found the average flight price for this trip to be $322.

When Can I Buy the Cheapest Flight from Philadelphia to St Louis (PHL to STL)?

Airlines can adjust prices for plane tickets from Philadelphia to St Louis based on the day and time that you decide to book your flight. We have collected data from all airlines, and have discovered that the best days to book flights are Tuesdays, Wednesdays, and Saturdays. Read our article to find more information about the best time to buy airline tickets.

How far in advance should you book flights from Philadelphia to St Louis

The chart below shows up-to-date information regarding how far in advance a flight from Philadelphia to St Louis should be booked.

Non Stop versus 1-Stop
Advanced PurchaseNon StopOne Stop
< 7 days $524 $531
7-14 days $319 $319
14-21 days $319 $319
21-30 days $325 $331
30-60 days $319 $319
60-90 days $317 $317
90+ days $320 $329

Cheapest Day To Fly from Philadelphia to St Louis

The chart below shows up-to-date information regarding the cheapest days to fly from Philadelphia to St Louis.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$330 $320 $319 $319 $319 $317 $330

Lowest Fares Chart By Month from Philadelphia to St Louis

The chart below shows the lowest fare by month when flying from Philadelphia to St Louis.

Month Origin Destination Carrier Depart Date Return Date Stops Price
February Philadelphia St Louis American 2/26/16 3/1/16 0 $319
March Philadelphia St Louis United 3/23/16 3/28/16 1 $319
April Philadelphia St Louis American 4/23/16 4/25/16 0 $317
May Philadelphia St Louis American 5/4/16 5/5/16 0 $320
June Philadelphia St Louis American 6/2/16 6/9/16 0 $335
July Philadelphia St Louis United 7/5/16 7/6/16 1 $332
August Philadelphia St Louis American 8/3/16 8/9/16 0 $358
September Philadelphia St Louis United 9/15/16 9/25/16 1 $389

Cheapest Weekend Non-Stop Flights for the Next 30 Days from Philadelphia to St Louis

If you're ready to take a trip in the next 30 days and want to fly on the weekend, you might be wondering which weekend is the cheapest to fly. The chart below shows up-to-date data regarding weekend flight prices from Philadelphia to St Louis.

Next 30 Days

SunMonTueWedThuFriSat
14 15 16 17 18 19 20
$324
21 22 23 24 25 26 27
$324 $319
28 29 1 2 3 4 5
$319 $369
6 7 8 9 10 11 12
$369
13 14 15 16 17 18 19
$369
20 21 22 23 24 25 26
$369

Non-Stop vs Connecting Flights from Philadelphia to St Louis (PHL to STL)

Your Philadelphia to St Louis flight can be significantly cheaper by choosing a multi-stop airline ticket. Although these connecting flights sacrifice some convenience, on average, travelers save 20%-60% when they choose to fly multi-stop versus a direct flight.

The average price for connecting flights from Philadelphia to St Louis is $320.

The average price for non-stop flights from Philadelphia to St Louis is $317.

The chart below shows up to date information regarding non-stop flights from Philadelphia to St Louis.

Nonstop Flight Details from Philadelphia to St Louis
CarrierMonTueWedThuFriSatSunEarliest FlightLatest Flight
American 4 3 3 4 4 1 4 07:50 19:05

Round Trip vs One Way Flights from Philadelphia to St Louis (PHL to STL)

We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from Philadelphia to St Louis. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison.

The average price for one way flights from Philadelphia to St Louis is $161.

The average price for round trip flights from Philadelphia to St Louis is $317.

Philadelphia to St Louis Flight Questions

Below are some common questions that asked about this flight route:

Question: How long is a direct flight from Philadelphia to St Louis?
Answer: The average Philadelphia to St Louis flight time is 2 hours and 40 minutes.
Question: How many miles are there between Philadelphia and St Louis?
Answer: The distance from Philadelphia to St Louis is 811 miles.
Question: How common are direct flights from Philadelphia to St Louis?
Answer: There are 23 direct flights from Philadelphia to St Louis.
Question: What is the most popular airline for non-stop flights from Philadelphia to St Louis?
Answer: American Airlines provides 100% of the non-stop flights between Philadelphia and St Louis.
Question: What are the most popular connecting cities when flying from Philadelphia to St Louis?
Answer: Atlanta, GA

Airlines Flying from Philadelphia to St Louis (PHL to STL)

Below are the different airlines that fly from Philadelphia to St Louis with the average price of their plane tickets. Just remember that different airlines offer different levels of comfort and service, so consider convenience when choosing your airline.

Below is the full flight schedule summary of the next 30 days for flights from Philadelphia to St Louis.

Philadelphia to St Louis
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American - X X X X X X X
American ORD X X X X X X X
Delta DTW X X X X X X X
United ORD X X X X X X X
Southwest - X X X X X X X
Southwest BNA X X X X X X X

Airports for Your Route

These pages contain information about the major airports in Philadelphia and St Louis, so you can feel comfortable knowing how to get around whether you are about to take off or you just landed.

Cheap Domestic Flights from Philadelphia - PHL

FlightsAirlineLowest Price
Philadelphia to Chicago American, Alaska, Frontier, Spirit, United $78
Philadelphia to Atlanta American, Frontier, Spirit, United $74

Cheap Domestic Flights to St Louis - STL

FlightsAirlineLowest Price
New York to St Louis American, United $243
Washington to St Louis American, United $185
Baltimore to St Louis American, United $185
Newark to St Louis American, United $243
Hartford to St Louis American, United $259
Richmond to St Louis American, United $309
Westchester County to St Louis American, United $270
Long Island MacArthur to St Louis American $462
Newburgh to St Louis American, United Check Dates
Harrisburg to St Louis American, United $380
State College to St Louis American, United $1,608
Allentown - Bethlehem - Easton to St Louis American, United $202
Wilkes - Barre to St Louis American, United $270
Ithaca to St Louis American, United $346
Binghamton to St Louis American, United $348
Elmira - Corning to St Louis American, United $360
New York to Atlanta American, Alaska, Frontier, Spirit, United $124
New York to Dallas - Ft Worth American, JetBlue, Spirit, Sun Country, United, Virgin America $78
Washington to Chicago American, Alaska, Frontier, United $81
New York to Orlando American, JetBlue, Spirit, United $151
New York to Miami American, Frontier, United $95
Newark to Chicago American, Alaska, JetBlue, Spirit, United $122
New York to Las Vegas American, Alaska, JetBlue, Spirit, United, Virgin America $231
New York to Detroit American, JetBlue, Spirit, United $84
Baltimore to Chicago American, Spirit, United $78
New York to Minneapolis - St Paul American, Sun Country, United $254

Cheap International Flights to St Louis - STL

FlightsAirlineLowest Price
New York to London American, Air Berlin, Air France, Finnair, Alitalia, JetBlue, British Airways, airBaltic, Condor, OpenSkies, Aer Lingus, Iberia, Meridiana, KLM, Kuwait, Lufthansa, LOT, Thomas Cook, Czech, Austrian, TAROM, SATA, SAS, Brussels, Tap Portugal, United, Air Europa, Virgin Atlantic $600
New York to Toronto American, Air Canada, Alaska, JetBlue, Porter, United, WestJet $183
Cheap Flights from Philadelphia to St Louis, MO, United States, from $317 Round trip from PHL to STL