Find St. Louis to Philadelphia flights starting at CAD 46.
Book one-way or return flights from St. Louis to Philadelphia from as little as CAD 46. Choose from the popular airlines below and book your flight today!
- One way
- Round-trip
- STL08:472h 14mDirectPHL12:01Wed, May 22|St. Louis - Philadelphia|Frontier AirlinesCAD 46CAD 9451% OFF51% OFFCAD 94CAD 46
- STL08:472h 14mDirectPHL12:01Wed, May 29|St. Louis - Philadelphia|Frontier AirlinesCAD 51CAD 9446% OFF46% OFFCAD 94CAD 51
- STL15:082h 14mDirectPHL18:22Sat, Jun 29|St. Louis - Philadelphia|Frontier AirlinesCAD 51CAD 9445% OFF45% OFFCAD 94CAD 51
- STL15:322h 13mDirectPHL18:45Wed, Jun 12|St. Louis - Philadelphia|Frontier AirlinesCAD 52CAD 52
- STL22:362h 14mDirectPHL01:50Wed, Jun 5|St. Louis - Philadelphia|Frontier AirlinesCAD 52CAD 52
- STL11:472h 13mDirectPHL15:00Sat, Jun 8|St. Louis - Philadelphia|Frontier AirlinesCAD 54CAD 54
- STL22:362h 14mDirectPHL01:50Mon, Jun 17|St. Louis - Philadelphia|Frontier AirlinesCAD 64CAD 64
- STL19:2310h 16m1 stopPHL06:39Thu, May 16|St. Louis - Philadelphia|Frontier AirlinesCAD 66CAD 66
- STL20:048h 30m1 stopPHL05:34Sat, May 18|St. Louis - Philadelphia|Frontier AirlinesCAD 67CAD 67
- STL20:048h 41m1 stopPHL05:45Sat, May 4|St. Louis - Philadelphia|Frontier AirlinesCAD 70CAD 70
- STL13:003h 5mDirectPHL14:00Mon, May 6|St. Louis - Philadelphia|Frontier AirlinesFind More FlightsFind More Flights
Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
Searching for the best last minute flight from St. Louis to Philadelphia? Find one-way or return flights that are affordable and fit your itinerary.
Trip.com monitors the ticket fares of flights from St. Louis to Philadelphia. Stay updated on price trends and snag the best deals for your upcoming trip.
View airlines operating flights 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.
Find more flights and airlines
Discover different routes, airlines, and transfers and find the best alternative flights for your journey from St. Louis to Philadelphia.
- CheapestSTL08:472h 14mDirectPHL12:01St. Louis Lambert International Airport - Philadelphia International AirportWed, May 22Frontier AirlinesCAD 46
- STL21:538h 50m1 transferTTN07:43St. Louis Lambert International Airport - Trenton Mercer AirportWed, May 8Frontier AirlinesCAD 70
- STL21:538h 50m1 transferTTN07:43St. Louis Lambert International Airport - Trenton Mercer AirportWed, May 8Frontier AirlinesCAD 70Find More Flights
How do I find the cheapest flights?
How to find a cheap flight from St. Louis to Philadelphia
Cheapest direct flight price | CAD 46 |
---|---|
Cheapest return ticket price | CAD 102 |
Cheapest month | May |
Peak season for travel | October |
Flight distance | 1,293.47km |
Average flight time | 2 hours 11 minutes |
Popular airline | American Airlines |
Plan Your Trip Around Philadelphia
Popular Flights
Popular Flights from St. Louis
- Flights from St. Louis to Orlando
- Flights from St. Louis to New York
- Flights from St. Louis to Las Vegas
- Flights from St. Louis to Denver
- Flights from St. Louis to Seattle
- Flights from St. Louis to Chicago
- Flights from St. Louis to Los Angeles
- Flights from St. Louis to Tokyo
- Flights from St. Louis to Hong Kong
- Flights from St. Louis to Shanghai
- Flights from St. Louis to Seoul
- Flights from St. Louis to Taipei
- Flights from St. Louis to Chaoshan Airport
- Flights from St. Louis Lambert International Airport to Orlando International Airport
- Flights from St. Louis Lambert International Airport to Newark Liberty International Airport
- Flights from St. Louis Lambert International Airport to John F. Kennedy International Airport
- Flights from St. Louis Lambert International Airport to New York LaGuardia Airport
- Flights from St. Louis Lambert International Airport to Stewart Airport
- Flights from St. Louis Lambert International Airport to Harry Reid International Airport
- Flights from St. Louis Lambert International Airport to Langkawi
- Flights from St. Louis Lambert International Airport to Kayseri
- Flights from St. Louis Lambert International Airport to Baghdad
- Flights from St. Louis Lambert International Airport to Dali
- Flights from St. Louis Lambert International Airport to Agra
- Flights from St. Louis Lambert International Airport to Amritsar
- Flights from St. Louis to Hangzhou Xiaoshan International Airport
- Flights from St. Louis to Macau International Airport
- Flights from St. Louis to Ningbo Lishe International Airport
- Flights from St. Louis to Nanjing Lukou International Airport
- Flights from St. Louis to Shashi Airport
Popular Flights to Philadelphia
- Flights from Hong Kong to Philadelphia
- Flights from Orlando to Philadelphia
- Flights from Atlanta to Philadelphia
- Flights from Fort Lauderdale to Philadelphia
- Flights from Miami to Philadelphia
- Flights from Tampa to Philadelphia
- Flights from Los Angeles to Philadelphia
- Flights from Boston to Philadelphia
- Flights from Charlotte to Philadelphia
- Flights from Chicago to Philadelphia
- Flights from Hong Kong International Airport to Philadelphia
- Flights from Taiwan Taoyuan International Airport to Philadelphia
- Flights from Narita International Airport to Philadelphia
- Flights from Shanghai Pudong International Airport to Philadelphia
- Flights from Ngurah Rai Airport to Philadelphia
- Flights from Ninoy Aquino International Airport to Philadelphia
- Flights from Giza Governorate to Philadelphia International Airport
- Flights from Honolulu to Philadelphia International Airport
- Flights from Honolulu to Trenton Mercer Airport
- Flights from Los Angeles to Philadelphia International Airport
- Flights from Los Angeles to Trenton Mercer Airport
- Flights from Hong Kong International Airport to Philadelphia International Airport
- Flights from Hong Kong International Airport to Trenton Mercer Airport
- Flights from Orlando Sanford International Airport to Philadelphia International Airport
- Flights from Orlando International Airport to Trenton Mercer Airport
- Flights from Orlando International Airport to Philadelphia International Airport
- Flights from Hartsfield-Jackson Atlanta International Airport to Trenton Mercer Airport
- Flights from London to Philadelphia
- Flights from Nashville to Philadelphia
- Flights from San Francisco to Trenton Mercer Airport
Recommended Routes
- Flights from Los Angeles to New York
- Flights from New York to Los Angeles
- Flights from San Francisco to Los Angeles
- Flights from San Francisco to Las Vegas
- Flights from Los Angeles to Las Vegas
- Flights from Los Angeles to Honolulu
- Flights from Las Vegas to San Francisco
- Flights from San Francisco to New York
- Flights from Las Vegas to Los Angeles
- Flights from Los Angeles to San Francisco
- Flights from New York to Orlando
- Flights from New York to San Francisco
- Flights from Ontario International Airport to Newark Liberty International Airport
- Flights from Los Angeles International Airport to New York LaGuardia Airport
- Flights from Ontario International Airport to New York LaGuardia Airport
- Flights from Ontario International Airport to Stewart Airport
- Flights from Los Angeles International Airport to Des Moines
- Flights from Los Angeles International Airport to New Orleans
- Flights from Los Angeles International Airport to Pullman
- Flights from Los Angeles International Airport to Bemidji
- Flights from Los Angeles International Airport to Hays
- Flights from Los Angeles International Airport to Provincetown
- Flights from Honolulu to Baltimore/Washington Thurgood Marshall International Airport
- Flights from Honolulu to General Edward Lawrence Logan International Airport
- Flights from Honolulu to Eugene Airport
- Flights from Honolulu to Gerald R Ford International Airport
- Flights from Honolulu to Birmingham-Shuttlesworth International Airport
- Flights from Honolulu to Harry Reid International Airport
- Flights from Los Angeles International Airport to John F. Kennedy International Airport
- Flights from Los Angeles International Airport to Newark Liberty International Airport
Site Operator: Trip.com Travel Singapore Pte. Ltd.