Question 1

How much does a flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) cost?

Accepted Answer

You can find cheap one-way flights from CA $178 and cheap return flights from CA $355 STL to PHL with Expedia. One-way flights typically cost between CA$621 and CA$1387. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when STL to PHL ticket fares go up or down.

Question 2

What is the cheapest month to fly from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.)?

Accepted Answer

The cheapest months to fly from STL to PHL are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.

Question 3

Which airlines fly direct from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.)?

Accepted Answer

There are 2 airlines offering direct flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.). Here are the carriers:
* American Airlines operates 24 direct flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) every week.
* Southwest Airlines operates 13 direct flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) every week.

Question 4

What is the cheapest airline that flies from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.)?

Accepted Answer

Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.), with tickets starting from around CA$252. Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.), with tickets starting from around CA$354 for flights that can be booked for departure within the next year. Southwest Airlines is one of the cheapest airlines offering nonstop return flights from St. Louis, MO (STL-Lambert-St. Spirit Airlines offers one of the cheapest connecting return flights from St. Louis, MO (STL-Lambert-St. These prices are per adult for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.

Question 5

How do I find cheap flights from St. Louis, MO (STL) to Philadelphia, PA (PHL)?

Accepted Answer

To find a cheap flight from St. Louis, MO (STL) to Philadelphia, PA (PHL), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

Question 6

What is the best airline to fly with from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.)?

Accepted Answer

The best airline to fly with from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) will differ from traveler to traveler. If you like to fly early, American Airlines offers early morning flights. If price is the most important factor, Southwest Airlines typically offers the lowest fares. United offers the most daily flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.

Question 7

What is the best time to fly from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.)?

Accepted Answer

The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.

Question 8

How many flights per day from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.)?

Accepted Answer

You'll find approximately 5 nonstop flights per day from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.). For even more choices, look at flights that include layovers, as there are around 91 connecting flights per day. Some common connection points include O'Hare Intl. (ORD), Hartsfield-Jackson Atlanta Intl. (ATL), and Charlotte-Douglas Intl. (CLT).

Question 9

What is the earliest flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.)?

Accepted Answer

The earliest flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) typically departs around 5:00 AM local time, operated by American Airlines. This is a seasonal service, active only in December. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

Question 10

What day of the week has the most flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.)?

Accepted Answer

You'll find the most flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) on a Friday, with around 59 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include Southwest Airlines, American Airlines, and United. Fridays offer notably more flight options compared to other days of the week, so you have more flexibility in choosing your departure time.

Question 11

What are the most popular departure times for flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.)?

Accepted Answer

For flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.), the most popular departure times are in the early morning, from 6am to 9am. Many major carriers, including American Airlines, Delta and United, offer flights during this window. Many travellers prefer these early flights as they allow you to arrive at your destination with plenty of time to start your day.

Question 12

How long does it take to fly from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.)?

Accepted Answer

A nonstop flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) typically takes around 2 hours 18 minutes. This route covers a distance of approximately 1,305 kilometers. If you opt for a flight with one stop, your travel time will be longer, usually around 5 hours. Flights with two or more stops generally take about 7 hours 30 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some flexibility in your travel plans.

Question 13

Can you fly business or first class from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.)?

Accepted Answer

You can fly business class or first class between STL and PHL. Airlines that offer business class service on this route include:

* Frontier Airlines
* Delta

First class cabins are available on:

* Spirit Airlines
* Alaska Airlines
* Delta
* American Airlines
* United

Question 14

How do I earn miles on a St. Louis, MO (STL-Lambert-St. Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) flight with Expedia?

Accepted Answer

It's easy to earn miles on a St. Louis, MO (STL-Lambert-St. Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.

*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

Question 15

What airports do you fly into for Philadelphia, PA (PHL) from St. Louis, MO (STL)?

Accepted Answer

If you're planning to travel to Philadelphia from Lambert-St. Louis Intl. (STL), you can fly directly into Philadelphia Intl. (PHL). Some flights may connect through major hubs like O'Hare Intl. (ORD), Hartsfield-Jackson Atlanta Intl. (ATL), or Washington Dulles Intl. (IAD) before reaching Philadelphia. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Question 16

Is it cheaper to buy a plane ticket from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) at the last minute?

Accepted Answer

Typically, booking a last minute flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.

Question 17

Is it cheaper to book a St. Louis, MO (STL-Lambert-St. Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) flight and hotel package?

Accepted Answer

Securing a St. Louis, MO (STL-Lambert-St. Louis Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.

Question 18

Can I cancel or change the date of my flight from St. Louis, MO (STL) to Philadelphia, PA (PHL)?

Accepted Answer

If you booked your St. Louis, MO (STL) to Philadelphia, PA (PHL) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Origin airport	Lambert-St. Louis Intl.
Destination airport	Philadelphia Intl.
Airlines serving	American Airlines, Delta, Southwest Airlines, United
Roundtrip price	CA $354
Distance	1298 km
Average flight time	3 hours 16 mins

Popular airlines from Lambert-St. Louis International Airport (STL) to Philadelphia International Airport (PHL)

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CA $178 Cheap Flights from St. Louis (STL) to Philadelphia (PHL)