
Popular airlines from St. Louis Lambert Intl. Airport (STL) to Philadelphia Intl. Airport (PHL)
- American Airlines
American Airlines
- Delta
Delta
- United
United
- Plan, book, fly with confidence
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Cheap flights from St. Louis to Philadelphia (STL-PHL)
Prices were available within the past 7 days and start at €84 for one-way flights and €168 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, 14 Aug - Mon, 18 Aug
STL
St. Louis
PHL
Philadelphia
€168 Return, found 4 days ago
€168
Return
found 4 days ago

Thu, 14 Aug - Mon, 18 Aug
STL
St. Louis
PHL
Philadelphia
€207 Return, found 4 days ago
€207
Return
found 4 days ago

Thu, 14 Aug - Mon, 18 Aug
STL
St. Louis
PHL
Philadelphia
€236 Return, found 4 days ago
€236
Return
found 4 days ago

Thu, 14 Aug - Mon, 18 Aug
STL
St. Louis
PHL
Philadelphia
€250 Return, found 4 days ago
€250
Return
found 4 days ago

Thu, 14 Aug - Mon, 18 Aug
STL
St. Louis
PHL
Philadelphia
€261 Return, found 4 days ago
€261
Return
found 4 days ago

Thu, 14 Aug - Mon, 18 Aug
STL
St. Louis
PHL
Philadelphia
€270 Return, found 4 days ago
€270
Return
found 4 days ago

Thu, 14 Aug - Mon, 18 Aug
STL
St. Louis
PHL
Philadelphia
€272 Return, found 4 days ago
€272
Return
found 4 days ago

Thu, 14 Aug - Mon, 18 Aug
STL
St. Louis
PHL
Philadelphia
€273 Return, found 4 days ago
€273
Return
found 4 days ago

Thu, 14 Aug - Mon, 18 Aug
STL
St. Louis
PHL
Philadelphia
€286 Return, found 4 days ago
€286
Return
found 4 days ago

Thu, 14 Aug - Mon, 18 Aug
STL
St. Louis
PHL
Philadelphia
€296 Return, found 4 days ago
€296
Return
found 4 days ago
Find the cheapest month to fly from St. Louis (STL) to Philadelphia (PHL)
September is typically the cheapest month to fly
From €58 - €353 per traveller.
Graph displaying average flight prices per month
Origin airport | Lambert-St. Louis Intl. |
Destination airport | Philadelphia Intl. |
Airlines serving | American Airlines, Delta, United |
Return price | €168 |
Distance | 1298 km |
Average flight time | 3 hours 14 mins |
Perfect flights from St. Louis to Philadelphia
Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from St. Louis to Philadelphia. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
Picture yourself strolling through the streets of Philadelphia, surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
Our flexible Lambert-St. Louis Intl. to Philadelphia Intl. ticket options cater to your travel preferences, with incredible one-way fares from €84 and roundtrip prices from €168. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Philadelphia Intl. and explore Philadelphia and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your STL to PHL travel arrangements today and embark on the journey of a lifetime in Philadelphia.
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