Find out what a flight from Saint Louis to Philadelphia might cost

Prices vary based on date, airline, and availability. Compare several options if you're flying between Saint Louis and Philadelphia.

Select your dates to check current offers.

Try shifting your departure forward or backward by a day to find better options. If you’re looking for a good deal, consider flying outside peak hours as well.

Which airports near Saint Louis or Philadelphia offer flights?

In many cases, using a nearby airport can improve your chances of finding direct flights or better rates.

• Airports in Saint Louis: Only Saint Louis - Lambert is currently operating.
• Airports in Philadelphia: Trenton Mercer is also worth a look.

Secondary airports can offer faster travel thanks to shorter lines and quicker boarding times than major ones.

Customize your flight from Saint Louis to Philadelphia

Jetcost allows you to filter by travel dates, duration, layovers, carriers, and booking providers. You’ll find direct and connecting flights, one-way or round-trip, from Ryanair, Easyjet, British Airways, Expedia, eDreams, and more.

Other popular destinations

Thinking about United States? You might also consider: Las Vegas, Los Angeles, Miami, New York City, Orlando.

You can sort results by price, duration, or departure time to find the best option for you. When available, results always include both low-cost and traditional airlines.