Skip to main content
Beginning of main content

Cheap Flights from Philadelphia to St. Louis $295.3

Search over 321,000 hotels worldwide and 400 airlines worldwide.
Secure incredible value with Expedia's Price Guarantee.
No Expedia cancellation fee to change or cancel almost any hotel reservation.

Cheapest Flights from Philadelphia to St. Louis (PHL to STL)

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Interesting Facts About Flights from Philadelphia to St. Louis (PHL to STL)

Question : In the next four weeks, what day should you book your trip?
Answer : Apr 25th has seen bookings (as of Apr 24th) as cheap as $297. That comes in 23% below the average price for this route. Saving on booking fees means you'll have more cash to spend on your trip.

Question : Which airline is struggling to get to Saint Louis on time?
Answer : If you're flying Trans States Airlines to Saint Louis from Philadelphia, you may be tardy as they're late 100% of the time. If you should choose this airline, be sure to track the flight status to stay on top of the departure time.

Question : How many days should you spend in Saint Louis?
Answer : Passengers from PHL to STL stay about one week on average.

Question : What are the chances this flight will be delayed?
Answer : Passengers are currently getting to their destination on schedule 75% of the time, which ranks in the bottom 50% of the world. When a flight is late, it's a 29-minute delay on average.

Question : When traveling to Saint Louis from Philadelphia, how long will you be in the air?
Answer : On average, the flight time from PHL to STL is two hours and 38 minutes.

Question : Which airline has been the most dependable in getting passengers to their destination on time?
Answer : Executive Jet Management leads the way with a 100% on-time rate. Don't spend more time waiting in an airport than you have to and stick with Executive Jet Management on this route. Perfection is hard to come by, so hopefully it continues.

Question : Can you cut down on flight costs by changing the day of the week you travel to Saint Louis?
Answer : For the month of May, Tuesday is your cheapest day to fly. Flexibility is paramount when booking travel plans in order to keep travel costs down.