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St. Louis to Trenton Mercer Airport flight
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Cheap Flights from St. Louis to Trenton Mercer Airport

  • One way
  • Round-trip
sortSort: Price (Lowest)
  • Sort: Price (Lowest)
  • Sort: Departure (Earliest)
      • STL19:33
        12h 1m
        1 stop
        TTN08:34
        St. Louis - Philadelphia|Wed, Jul 31|Frontier Airlines
        €74€141
        48% OFF
        48% OFF
        €141€74
      • STL19:33
        12h 1m
        1 stop
        TTN08:34
        St. Louis - Philadelphia|Thu, Jul 18|Frontier Airlines
        €80€141
        43% OFF
        43% OFF
        €141€80
      • STL21:20
        9h 16m
        1 stop
        TTN07:36
        St. Louis - Philadelphia|Wed, Jul 10|Frontier Airlines
        €97€141
        31% OFF
        31% OFF
        €141€97
      • STL19:33
        12h 1m
        1 stop
        TTN08:34
        St. Louis - Philadelphia|Wed, Aug 7|Frontier Airlines
        €98
        €98
      • STL19:33
        12h 1m
        1 stop
        TTN08:34
        St. Louis - Philadelphia|Wed, Jul 17|Frontier Airlines
        €98
        €98
      • STL19:33
        12h 1m
        1 stop
        TTN08:34
        St. Louis - Philadelphia|Tue, Jul 16|Frontier Airlines
        €107
        €107
      • STL19:33
        12h 1m
        1 stop
        TTN08:34
        St. Louis - Philadelphia|Thu, Aug 8|Frontier Airlines
        €111
        €111
      • STL19:33
        11h 5m
        1 stop
        TTN07:38
        St. Louis - Philadelphia|Sat, Aug 10|Frontier Airlines
        €112
        €112
      • STL19:29
        23h 33m
        1 stop
        TTN20:02
        St. Louis - Philadelphia|Mon, Jul 1|Frontier Airlines
        €116
        €116
      • STL19:33
        11h 39m
        1 stop
        TTN08:12
        St. Louis - Philadelphia|Fri, Jul 12|Frontier Airlines
        €123
        €123
      • STL13:00
        3h 5m
        Direct
        TTN14:00
        St. Louis - Philadelphia|Wed, Jul 3|Frontier 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 Suitable Airport in St. Louis

  • 21.12 km from central St. Louis
    St. Louis Lambert International Airport
    Tickets From
    €74

Flight Info of Flights from St. Louis to Trenton Mercer Airport

Cheapest return ticket price

€49

Cheapest month

May

Peak season for travel

December

FAQs for St. Louis to Trenton Mercer Airport Flights

  • 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 date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.

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

    According to Trip.com's data, the lowest price is around €263.

  • How long is the flight from St. Louis (STL) to Philadelphia (PHL)?

    It takes about 2 hours 13 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, Frontier Airlines, Aer Lingus, Iberia, Qatar Airways and British Airways.

  • What's the most popular airline for direct flights from St. Louis (STL) to Philadelphia (PHL)?

    American Airlines operates 2 direct flights from St. Louis (STL) to Philadelphia (PHL).

  • How many airports in Philadelphia (PHL)?

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