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Flights from St. Louis to Philadelphia
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Flights from St. Louis to Philadelphia Starting at Rs 12,457

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • One way
  • Round-trip
      • Cheapest nonstop
        STL06:00
        2h 12m
        Nonstop
        PHL09:12
        Tue, Dec 17|St. Louis - Philadelphia|American Airlines
        Rs 42,721Rs 47,210
        10% OFF
        10% OFF
        Rs 47,210Rs 42,721

        Choose American Airlines flights from St. Louis to Philadelphia. The one-way direct flight with American Airlines departs from St.Louis Lambert International Airport on Tue, Dec 17, arriving at Philadelphia International Airport. One-way Prices start from Rs 42,721 including taxes and charges.

      • STL06:30
        2h 9m
        Nonstop
        PHL09:39
        Tue, Dec 31|St. Louis - Philadelphia|American Airlines
        Rs 43,905Rs 47,210
        7% OFF
        7% OFF
        Rs 47,210Rs 43,905

        Choose American Airlines flights from St. Louis to Philadelphia. The one-way direct flight with American Airlines departs from St.Louis Lambert International Airport on Tue, Dec 31, arriving at Philadelphia International Airport. One-way Prices start from Rs 43,905 including taxes and charges.

      • STL15:53
        7h 40m
        1 stop
        PHL00:33
        Tue, Dec 17|St. Louis - Philadelphia|Frontier Airlines
        Rs 12,457Rs 47,210
        74% OFF
        74% OFF
        Rs 47,210Rs 12,457

        Choose Frontier Airlines flights from St. Louis to Philadelphia. The one-way connecting flight with Frontier Airlines departs from St.Louis Lambert International Airport on Tue, Dec 17, arriving at Philadelphia International Airport. One-way Prices start from Rs 12,457 including taxes and charges.

      • STL15:53
        6h 46m
        1 stop
        TTN23:39
        Wed, Dec 18|St. Louis - Philadelphia|Frontier Airlines
        Rs 14,100
        Rs 14,100

        Choose Frontier Airlines flights from St. Louis to Philadelphia. The one-way connecting flight with Frontier Airlines departs from St.Louis Lambert International Airport on Wed, Dec 18, arriving at Trenton Mercer Airport. One-way Prices start from Rs 14,100 including taxes and charges.

      • STL17:05
        5h 54m
        1 stop
        TTN23:59
        Mon, Feb 10|St. Louis - Philadelphia|Frontier Airlines
        Rs 15,017
        Rs 15,017

        Choose Frontier Airlines flights from St. Louis to Philadelphia. The one-way connecting flight with Frontier Airlines departs from St.Louis Lambert International Airport on Mon, Feb 10, arriving at Trenton Mercer Airport. One-way Prices start from Rs 15,017 including taxes and charges.

      • STL17:05
        13h 56m
        1 stop
        PHL08:01
        Sat, Jan 11|St. Louis - Philadelphia|Frontier Airlines
        Rs 16,622
        Rs 16,622

        Choose Frontier Airlines flights from St. Louis to Philadelphia. The one-way connecting flight with Frontier Airlines departs from St.Louis Lambert International Airport on Sat, Jan 11, arriving at Philadelphia International Airport. One-way Prices start from Rs 16,622 including taxes and charges.

      • STL17:05
        19h 58m
        1 stop
        PHL14:03
        Tue, Jan 7|St. Louis - Philadelphia|Frontier Airlines
        Rs 16,622
        Rs 16,622

        Choose Frontier Airlines flights from St. Louis to Philadelphia. The one-way connecting flight with Frontier Airlines departs from St.Louis Lambert International Airport on Tue, Jan 7, arriving at Philadelphia International Airport. One-way Prices start from Rs 16,622 including taxes and charges.

      • STL15:53
        14h 39m
        1 stop
        PHL07:32
        Sat, Jan 4|St. Louis - Philadelphia|Frontier Airlines
        Rs 16,660
        Rs 16,660

        Choose Frontier Airlines flights from St. Louis to Philadelphia. The one-way connecting flight with Frontier Airlines departs from St.Louis Lambert International Airport on Sat, Jan 4, arriving at Philadelphia International Airport. One-way Prices start from Rs 16,660 including taxes and charges.

      • STL17:05
        23h 46m
        1 stop
        TTN17:51
        Thu, Jan 9|St. Louis - Philadelphia|Frontier Airlines
        Rs 16,660
        Rs 16,660

        Choose Frontier Airlines flights from St. Louis to Philadelphia. The one-way connecting flight with Frontier Airlines departs from St.Louis Lambert International Airport on Thu, Jan 9, arriving at Trenton Mercer Airport. One-way Prices start from Rs 16,660 including taxes and charges.

      • STL07:43
        13h 11m
        1 stop
        PHL21:54
        Mon, Jan 6|St. Louis - Philadelphia|Frontier Airlines
        Rs 16,775
        Rs 16,775

        Choose Frontier Airlines flights from St. Louis to Philadelphia. The one-way connecting flight with Frontier Airlines departs from St.Louis Lambert International Airport on Mon, Jan 6, arriving at Philadelphia International Airport. One-way Prices start from Rs 16,775 including taxes and charges.

      • STL13:00
        3h 5m
        Nonstop
        PHL14:00
        Wed, Dec 11|St. Louis - Philadelphia|American Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Find the best time to fly from St. Louis to Philadelphia

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Airlines Flying from St. Louis to Philadelphia

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Frontier Airlines
From Rs 12,457
American Airlines
From Rs 33,244
Delta Air Lines
From Rs 35,384
United Airlines
From Rs 44,593
Southwest Airlines
From Rs 48,911
Alaska Airlines
From Rs 65,915

Find more flights and airlines

Alternative Routes from St. Louis to Philadelphia

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from St. Louis to Philadelphia.

  • Cheapest
    Frontier Airlines
    STL
    15:53
    7h 40m
    1 transfer
    PHL
    00:33
    St.Louis Lambert International Airport - Philadelphia International Airport
    Tue, Dec 17Frontier Airlines
    Rs 12,457
  • Frontier Airlines
    STL
    15:53
    6h 46m
    1 transfer
    TTN
    23:39
    St.Louis Lambert International Airport - Trenton Mercer Airport
    Tue, Dec 17Frontier Airlines
    Rs 12,457
  • Frontier Airlines
    STL
    15:53
    6h 46m
    1 transfer
    TTN
    23:39
    St.Louis Lambert International Airport - Trenton Mercer Airport
    Tue, Dec 17Frontier Airlines
    Rs 12,457
    Find More Flights

FAQ

  • When are flight tickets from St. Louis (STL) to Philadelphia (PHL) the cheapest?

    Airlines adjust prices for flights from St. Louis to Philadelphia based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from St. Louis (STL) to Philadelphia (PHL) cost?

    According to Trip.com's data, the lowest price is around Rs 88,842.

  • How long does it take to fly from St. Louis (STL) to Philadelphia (PHL) and what is the distance?

    It takes around 2 hours 9 minutes to fly from St. Louis (STL) to Philadelphia (PHL).

  • What are the most popular airlines that fly from St. Louis (STL) to Philadelphia (PHL)?

    Airlines with flights from St. Louis (STL) to Philadelphia (PHL): American Airlines, Southwest Airlines, Qatar Airways, British Airways, Aer Lingus and Iberia.

How to find a cheap flight from St. Louis to Philadelphia

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from St. Louis to Philadelphia. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Information from St. Louis to Philadelphia

Cheapest nonstop flight priceRs 12,457
Cheapest round-trip ticket priceRs 66,755
Off-season for travelDecember
Peak season for travelFebruary
Flight distance1,293.47 km
Average flight time2 hours 9 minutes
Popular airlineAmerican Airlines

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