St. Louis (STL) → Philadelphia (PHL)
About St. Louis to Philadelphia Flights
Discover the best flights from St. Louis to Philadelphia, covering 1,306 km in approximately 2h 8m. St. Louis (STL) to Philadelphia (PHL) is one of the busy short-haul routes within United States. With 2 major airlines operating this route including direct flights, travelers have plenty of options to choose from. Whether you're traveling for business or leisure, our comprehensive guide helps you find the best deals, understand seasonal price variations, and choose the right airline for your journey from St. Louis to Philadelphia.
12-Month Price History
Flight prices from St. Louis to Philadelphia vary significantly throughout the year. February typically offers the best deals with average prices around $251, while July sees the highest prices, averaging $425. Savvy travelers can save up to 41% by choosing their travel dates wisely.
Best Time to Fly
Cheapest Month
February
Save up to 40% on average
Most Expensive
July
Peak season pricing
Book in Advance
56 days
For best prices
Booking Tips
For the best prices on St. Louis to Philadelphia flights, we recommend booking 81 days in advance. Domestic flights typically see price increases as the departure date approaches, so early booking is advisable. Tuesday and Wednesday departures often offer the lowest fares, while Friday and Sunday flights tend to be more expensive due to business and leisure travel demand. Consider flying early morning or late evening for additional savings, as these off-peak times usually have lower demand.
Airlines Serving This Route
| Airline | Economy | Business | First |
|---|---|---|---|
UPS Airlines 5X | $370 | $1310 | $2120 |
Piedmont Airlines PT | $380 | $1600 | $1900 |
UPS Airlines
5X
Economy
$370
Business
$1310
First
$2120
Piedmont Airlines
PT
Economy
$380
Business
$1600
First
$1900
Prices shown are estimates based on historical data. Actual prices may vary based on dates, availability, and current promotions.
Alternative Flight Options
St. Louis → New York
St. Louis Lambert International (STL) to John F. Kennedy International (JFK)
Distance: 1,433 km
Average price: $315
St. Louis → Newark
St. Louis Lambert International (STL) to Newark Liberty International (EWR)
Distance: 1,400 km
Average price: $310
St. Louis → Washington
St. Louis Lambert International (STL) to Ronald Reagan Washington National (DCA)
Distance: 1,154 km
Average price: $273
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Frequently Asked Questions
How long is the flight from St. Louis to Philadelphia?
The flight time from St. Louis (STL) to Philadelphia (PHL) is approximately 2 hours and 8 minutes. This duration is for direct flights and may vary depending on aircraft type, weather conditions, and air traffic.
What is the distance between St. Louis and Philadelphia?
The aerial distance between St. Louis and Philadelphia is 1,306 kilometers (812 miles). This is the straight-line distance, which is used to calculate flight times.
Which airlines fly from St. Louis to Philadelphia?
Several airlines operate flights between St. Louis and Philadelphia, including Piedmont Airlines, UPS Airlines. Direct flights are available on this route.
What is the cheapest month to fly from St. Louis to Philadelphia?
Based on historical data, February typically offers the lowest airfares for flights from St. Louis to Philadelphia. However, prices can vary based on holidays, events, and airline promotions. We recommend checking our price calendar for the most up-to-date information.
How far in advance should I book my flight to Philadelphia?
For the best prices on St. Louis to Philadelphia flights, we recommend booking 31 days in advance. Domestic flights can sometimes offer good last-minute deals, but advance booking is usually cheaper.
Do I need a visa to travel from St. Louis to Philadelphia?
Visa requirements depend on your nationality and the purpose of your visit. Since this is a domestic flight, no visa is required for citizens.
What is the time difference between St. Louis and Philadelphia?
St. Louis operates on America/Chicago time zone, while Philadelphia is in the America/New_York time zone. For current time differences and to plan your schedule, visit our partner site timezig.com for accurate timezone conversions.