Cheap flights from Philadelphia to St. Louis (PHL - STL) from $44

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/19. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
PHL — STL
Apr 2 — Apr 91

The best prices from Philadelphia to Lambert-St Louis are usually found in February or October, booked 64 days in advance, depart on a Saturday or Wednesday and return on a Saturday

Cheap flight deals from Philadelphia to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 28, 2024.

Popular in

March

Cheapest in

February

Round-trip from

$323

One-way from

$94
High demand for flights, 11% potential price rise
Best time to find cheap flights, 9% potential price drop
From Philadelphia to Lambert-St Louis
One-way flight from Philadelphia to Lambert-St Louis

What is the cheapest day to fly round-trip from Philadelphia to St. Louis?

Sunday flights are found to be more expensive to fly from Philadelphia to St. Louis. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to St. Louis.

How far in advance should I book a flight from Philadelphia to St. Louis?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 47 days in advance, which can save you up to 91% on flights from Philadelphia to St. Louis compared to booking the week you need them. Waiting 47 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $407. For sooner than that we have options available in the next 3 days from $579.

What is the cheapest month to fly from Philadelphia to St. Louis?

Due to multiple factors, expect to potentially pay more when booking in March. For low rates, February can be a great choice for travel to St. Louis. Flights to St. Louis from Philadelphia in February are about $398 on average during February, but can be found for as low as $180.

When is the cheapest time to fly from Philadelphia to St. Louis (PHL - STL)?

It’s optimal to fly from Philadelphia to St. Louis at noon. By choosing this option you can save up to 39% on the cost of your flight, compared to a flight in the afternoon.

Cheap Frontier flights from Philadelphia to St. Louis

Explore cheap flight options specifically provided by Frontier for the route between Philadelphia and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,238,496 searches. Data last updated March 28, 2024.
Check out some of the cheapest Frontier flights we've come across from Philadelphia to St. Louis. It's recommended that users confirm their flight details before booking.
Wed 5/296:30 amPHL - STL
Nonstop2h 27mFrontier
Wed 6/263:32 pmSTL - PHL
Nonstop2h 13mFrontier
Deal found 3/27$78
Wed 7/101:12 pmPHL - STL
Nonstop2h 30mFrontier
Mon 7/1511:21 amSTL - PHL
Nonstop2h 13mFrontier
Deal found 3/27$113
Wed 5/296:30 amPHL - STL
Nonstop2h 27mFrontier
Mon 6/37:18 amSTL - PHL
Nonstop2h 14mFrontier
Deal found 3/27$118
Sat 5/188:27 pmPHL - STL
1 stop27h 05mFrontier
Sat 5/258:57 amSTL - PHL
Nonstop2h 14mFrontier
Deal found 3/27$136
Fri 5/3110:53 amPHL - STL
Nonstop2h 27mFrontier
Sat 6/18:57 amSTL - PHL
Nonstop2h 14mFrontier
Deal found 3/27$138
Wed 5/2910:54 pmPHL - STL
1 stop9h 08mFrontier
Wed 6/263:32 pmSTL - PHL
Nonstop2h 13mFrontier
Deal found 3/27$139
Wed 4/247:54 pmPHL - STL
1 stop12h 19mFrontier
Wed 5/19:53 pmSTL - PHL
1 stop10h 18mFrontier
Deal found 3/27$140
Wed 6/191:12 pmPHL - STL
Nonstop2h 30mFrontier
Mon 6/2411:21 amSTL - PHL
Nonstop2h 13mFrontier
Deal found 3/27$142
Fri 7/268:46 amPHL - STL
Nonstop2h 30mFrontier
Mon 7/2911:21 amSTL - PHL
Nonstop2h 13mFrontier
Deal found 3/27$148

Cheap Spirit Airlines flights from Philadelphia to St. Louis

Explore cheap flight options specifically provided by Spirit Airlines for the route between Philadelphia and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,238,496 searches. Data last updated March 28, 2024.
Some of the best deals we've found on Spirit Airlines flights traveling from Philadelphia to St. Louis. Deals are refreshing constantly so come back soon for more options.
Fri 5/177:05 pmPHL - STL
1 stop16h 23mSpirit Airlines
Sun 5/196:19 pmSTL - PHL
1 stop13h 41mSpirit Airlines
Deal found 3/27$221
Sat 4/135:10 amPHL - STL
1 stop13h 24mSpirit Airlines
Thu 4/187:30 pmSTL - PHL
2 stops24h 20mSpirit Airlines
Deal found 3/27$247
Sat 4/135:10 amPHL - STL
1 stop13h 24mSpirit Airlines
Thu 4/187:30 pmSTL - PHL
2 stops24h 20mSpirit Airlines
Deal found 3/27$249
Thu 4/116:26 amPHL - STL
1 stop13h 14mSpirit Airlines
Sun 4/147:30 pmSTL - PHL
2 stops22h 07mSpirit Airlines
Deal found 3/27$261
Fri 4/121:06 pmPHL - STL
2 stops22h 34mSpirit Airlines
Sat 4/136:24 pmSTL - PHL
1 stop13h 31mSpirit Airlines
Deal found 3/27$273
Thu 4/185:10 amPHL - STL
1 stop13h 24mSpirit Airlines
Sun 4/216:24 pmSTL - PHL
1 stop13h 31mSpirit Airlines
Deal found 3/27$286
Thu 4/116:26 amPHL - STL
1 stop13h 14mSpirit Airlines
Sun 4/147:30 pmSTL - PHL
3 stops36h 25mSpirit Airlines
Deal found 3/27$289
Thu 4/45:00 amPHL - STL
1 stop13h 39mSpirit Airlines
Mon 4/85:35 pmSTL - PHL
2 stops22h 32mSpirit Airlines
Deal found 3/26$290
Wed 4/35:25 pmPHL - STL
2 stops26h 25mSpirit Airlines
Sat 4/611:39 amSTL - PHL
2 stops19h 21mSpirit Airlines
Deal found 3/27$294

Cheap Philadelphia to St. Louis flights in March & April 2024

Find cheap flight options from Philadelphia to St. Louis specifically for the months of March and April 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,238,496 searches. Prices were last updated on March 28, 2024.
These are some of the best deals we've found on flights to St. Louis in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
Mon 4/157:56 pmPHL - STL
1 stop14h 48mMultiple Airlines
Wed 4/179:53 pmSTL - PHL
1 stop10h 18mMultiple Airlines
Deal found 3/26$178
Fri 4/128:50 pmPHL - STL
1 stop13h 57mFrontier
Sat 4/138:04 pmSTL - PHL
1 stop8h 41mFrontier
Deal found 3/27$179
Mon 4/158:45 amPHL - STL
1 stop12h 26mFrontier
Sat 4/208:04 pmSTL - PHL
1 stop8h 41mFrontier
Deal found 3/27$180
Tue 4/96:30 amPHL - STL
1 stop8h 10mMultiple Airlines
Thu 4/117:30 pmSTL - PHL
1 stop14h 28mMultiple Airlines
Deal found 3/26$183
Sat 4/208:40 pmPHL - STL
1 stop18h 49mFrontier
Mon 4/228:04 pmSTL - PHL
1 stop8h 41mFrontier
Deal found 3/27$185
Sat 4/207:30 amPHL - STL
2 stops11h 04mMultiple Airlines
Tue 4/237:16 pmSTL - PHL
1 stop14h 42mMultiple Airlines
Deal found 3/27$188
Mon 4/87:05 pmPHL - STL
1 stop19h 35mMultiple Airlines
Wed 4/109:53 pmSTL - PHL
1 stop10h 18mMultiple Airlines
Deal found 3/26$189
Sat 4/208:40 pmPHL - STL
1 stop18h 49mFrontier
Mon 4/228:04 pmSTL - PHL
2 stops18h 45mFrontier
Deal found 3/27$190
Sat 4/137:54 pmPHL - STL
1 stop12h 19mFrontier
Thu 4/1811:18 amSTL - PHL
1 stop17h 27mFrontier
Deal found 3/27$193

Philadelphia to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Philadelphia and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,238,496 searches. Data last updated March 28, 2024.
These are some of the best deals we've found on flights to St. Louis in 2024 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
Fri 5/318:46 amPHL - STL
Nonstop2h 30mFrontier
Mon 6/311:21 amSTL - PHL
Nonstop2h 13mFrontier
Deal found 3/26$178
Fri 4/128:50 pmPHL - STL
1 stop13h 57mFrontier
Sat 4/138:04 pmSTL - PHL
1 stop8h 41mFrontier
Deal found 3/27$179
Mon 4/158:45 amPHL - STL
1 stop12h 26mFrontier
Sat 4/208:04 pmSTL - PHL
1 stop8h 41mFrontier
Deal found 3/27$180
Fri 7/268:46 amPHL - STL
Nonstop2h 30mFrontier
Sat 8/1011:47 amSTL - PHL
Nonstop2h 13mFrontier
Deal found 3/26$181
Tue 4/96:30 amPHL - STL
1 stop8h 10mMultiple Airlines
Thu 4/117:30 pmSTL - PHL
1 stop14h 28mMultiple Airlines
Deal found 3/26$183
Wed 5/155:27 pmPHL - STL
1 stop25h 02mSpirit Airlines
Tue 5/212:35 pmSTL - PHL
1 stop6h 58mSpirit Airlines
Deal found 3/26$184
Wed 5/2911:42 amPHL - STL
1 stop4h 46mAmerican Airlines
Wed 6/265:29 amSTL - PHL
1 stop4h 05mAmerican Airlines
Deal found 3/26$185
Wed 7/1011:45 amPHL - STL
1 stop6h 20mAmerican Airlines
Mon 7/157:02 amSTL - PHL
1 stop5h 28mAmerican Airlines
Deal found 3/26$186
Sat 4/207:30 amPHL - STL
2 stops11h 04mMultiple Airlines
Tue 4/237:16 pmSTL - PHL
1 stop14h 42mMultiple Airlines
Deal found 3/27$188

Non-stop flights to St. Louis from Philadelphia

Discover non-stop flight options from Philadelphia to St. Louis. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 3,238,496 searches. Data last updated March 28, 2024.
Consider booking one of these non-stop flights heading from Philadelphia to St. Louis. Users can also choose from other Philadelphia to St. Louis flights by using the search form above.
Fri 5/318:46 amPHL - STL
Nonstop2h 30mFrontier
Mon 6/311:21 amSTL - PHL
Nonstop2h 13mFrontier
Deal found 3/26$178
Sat 5/188:16 pmPHL - STL
Nonstop2h 29mAmerican Airlines
Sat 5/256:40 amSTL - PHL
Nonstop2h 10mAmerican Airlines
Deal found 3/27$244
Sun 6/27:11 pmPHL - STL
Nonstop2h 44mAmerican Airlines
Thu 6/66:08 amSTL - PHL
Nonstop2h 17mAmerican Airlines
Deal found 3/27$264
Sun 5/198:51 amPHL - STL
Nonstop2h 38mAmerican Airlines
Thu 5/236:40 amSTL - PHL
Nonstop2h 10mAmerican Airlines
Deal found 3/27$299
Fri 6/72:37 pmPHL - STL
Nonstop2h 27mAmerican Airlines
Thu 6/204:45 pmSTL - PHL
Nonstop2h 16mAmerican Airlines
Deal found 3/26$309
Thu 5/168:51 amPHL - STL
Nonstop2h 38mAmerican Airlines
Sat 5/186:40 amSTL - PHL
Nonstop2h 10mAmerican Airlines
Deal found 3/26$319
Fri 5/248:51 amPHL - STL
Nonstop2h 38mAmerican Airlines
Tue 5/286:40 amSTL - PHL
Nonstop2h 10mAmerican Airlines
Deal found 3/26$333
Fri 5/107:11 pmPHL - STL
Nonstop2h 44mAmerican Airlines
Sun 5/126:40 amSTL - PHL
Nonstop2h 10mAmerican Airlines
Deal found 3/27$353
Thu 6/202:37 pmPHL - STL
Nonstop2h 27mAmerican Airlines
Sun 6/239:06 amSTL - PHL
Nonstop2h 18mAmerican Airlines
Deal found 3/27$384

Philadelphia to St. Louis flights leaving soon

Find last-minute flight options from Philadelphia to St. Louis for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,238,496 searches. Data last updated March 28, 2024.
Have a look at some of the flights available from Philadelphia to St. Louis departing last-minute. Users should be sure to double check the price, date, and time of their last-minute flight.
Wed 4/38:00 pmPHL - STL
1 stop13h 21mFrontier
Wed 4/109:53 pmSTL - PHL
1 stop10h 18mFrontier
Deal found 3/26$196
Sat 4/68:00 pmPHL - STL
1 stop13h 21mFrontier
Sat 4/138:04 pmSTL - PHL
1 stop8h 41mFrontier
Deal found 3/26$199
Wed 4/38:55 amPHL - STL
2 stops12h 18mMultiple Airlines
Tue 4/98:24 pmSTL - PHL
1 stop10h 26mMultiple Airlines
Deal found 3/26$210
Wed 4/38:00 pmPHL - STL
1 stop13h 21mFrontier
Tue 4/98:24 pmSTL - PHL
1 stop10h 26mFrontier
Deal found 3/26$216
Thu 4/48:00 pmPHL - STL
1 stop13h 21mFrontier
Tue 4/98:24 pmSTL - PHL
1 stop10h 26mFrontier
Deal found 3/27$218
Tue 4/22:00 pmPHL - STL
1 stop8h 14mFrontier
Wed 4/38:45 pmSTL - PHL
1 stop14h 25mFrontier
Deal found 3/26$225
Wed 4/310:14 pmPHL - STL
1 stop11h 07mFrontier
Fri 4/56:18 pmSTL - PHL
1 stop16h 59mFrontier
Deal found 3/26$226
Thu 4/41:15 pmPHL - STL
1 stop10h 00mFrontier
Fri 4/56:18 pmSTL - PHL
1 stop16h 59mFrontier
Deal found 3/26$228
Tue 4/27:55 pmPHL - STL
2 stops15h 17mFrontier
Tue 4/98:24 pmSTL - PHL
1 stop10h 26mFrontier
Deal found 3/26$229

One-way flights to St. Louis from Philadelphia

Search for one-way flight options from Philadelphia to St. Louis. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,238,496 searches. Data last updated March 28, 2024.
Take a look at some of the best available options we've come across on one-way flights from Philadelphia to St. Louis. Those seeking round-trip flights from Philadelphia to St. Louis should utilize the search form at the the top of the page.
Wed 6/191:12 pmPHL - STL
Nonstop2h 30mFrontier
Deal found 3/27$44
Wed 7/31:12 pmPHL - STL
Nonstop2h 30mFrontier
Deal found 3/27$64
Wed 4/107:54 pmPHL - STL
1 stop12h 19mFrontier
Deal found 3/27$76
Mon 6/35:01 amPHL - STL
Nonstop2h 27mFrontier
Deal found 3/27$79
Tue 4/96:32 pmPHL - STL
2 stops16h 15mFrontier
Deal found 3/27$81
Mon 4/87:05 pmPHL - STL
1 stop14h 16mMultiple Airlines
Deal found 3/26$85
Tue 6/46:03 amPHL - STL
1 stop4h 50mAmerican Airlines
Deal found 3/27$93
Wed 7/33:44 pmPHL - STL
1 stop7h 19mAmerican Airlines
Deal found 3/27$94
Mon 4/1512:06 pmPHL - STL
1 stop9h 05mFrontier
Deal found 3/27$99

Find flights from Philadelphia to St. Louis within your budget

Customize your flight search to find flights from Philadelphia to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 3,238,496 searches. Data last updated March 28, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$78 - $221

Route

Depart

Return

Price

PhiladelphiaLambert-St Louis

PHL - STL

PHLSTL

Philadelphia

Wed 5/29

Nonstop2h 27m

Lambert-St Louis

Wed 6/26

Nonstop2h 13m

$78

PhiladelphiaLambert-St Louis

PHL - STL

PHLSTL

Philadelphia

Wed 7/10

Nonstop2h 30m

Lambert-St Louis

Mon 7/15

Nonstop2h 13m

$113

PhiladelphiaLambert-St Louis

PHL - STL

PHLSTL

Philadelphia

Wed 5/29

Nonstop2h 27m

Lambert-St Louis

Mon 6/3

Nonstop2h 14m

$118

PhiladelphiaLambert-St Louis

PHL - STL

PHLSTL

Philadelphia

Sat 5/18

1 stop27h 05m

Lambert-St Louis

Sat 5/25

Nonstop2h 14m

$136

PhiladelphiaLambert-St Louis

PHL - STL

PHLSTL

Philadelphia

Fri 5/31

Nonstop2h 27m

Lambert-St Louis

Sat 6/1

Nonstop2h 14m

$138

PhiladelphiaLambert-St Louis

PHL - STL

PHLSTL

Philadelphia

Wed 7/10

1 stop6h 20m

Lambert-St Louis

Mon 7/15

Nonstop2h 15m

$177

PhiladelphiaLambert-St Louis

PHL - STL

PHLSTL

Philadelphia

Wed 7/10

1 stop6h 20m

Lambert-St Louis

Mon 7/15

1 stop5h 28m

$186

PhiladelphiaLambert-St Louis

PHL - STL

PHLSTL

Philadelphia

Sat 4/20

2 stops11h 04m

Lambert-St Louis

Tue 4/23

1 stop14h 42m

$188

PhiladelphiaLambert-St Louis

PHL - STL

PHLSTL

Philadelphia

Fri 5/17

1 stop16h 23m

Lambert-St Louis

Sun 5/19

1 stop13h 41m

$221

Flights are sorted by cheapest first

Deals found on 3/27

When is the best time to book a flight from Philadelphia to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to St. Louis. Price data was last updated on January 28, 2024.
Booking 64 days in advance of your planned departure date is, on average, the best time to get cheap flights from Philadelphia to St. Louis. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Search Deals

When is the cheapest time to fly from Philadelphia to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Philadelphia to St. Louis. Price data was last updated on March 24, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Philadelphia to St. Louis flight should consider departing on Tuesday at noon when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to St. Louis by month

Plan your trip from Philadelphia to St. Louis by taking into account the cheapest months to travel. The average price of a one-way flight from Philadelphia to St. Louis is currently $79 while a round-trip flight costs $151. Price data was last updated on March 24, 2024.

Currently, September is the cheapest month in which you can book a flight from Philadelphia to St. Louis (average of $323). Flying from Philadelphia to St. Louis in June is currently the most expensive (average of $384). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$326

February

$331

March

$357

April

$346

May

$356

June

$384

July

$380

August

$336

September

$323

October

$323

November

$336

December

$326

Temperature and rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature and rainfall totals by month.

STL

Temperature

32 - 80.6 °F

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated March 28, 2024.
To help decide which airline to fly from Philadelphia to St. Louis, see what other customers have to say about Frontier, Spirit Airlines and American Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.2
Very good
6,332 reviews

Food

7.4

Comfort

8.1

Entertainment

7.9

Overall

8.2

Boarding

8.3

Crew

8.8

Reviews

1 / 10

No tray tables for food or drink not convenient nor comfortable

Southwest
8.2
Very good
6,332 reviews
Southwest
8.2
Very good
6,332 reviews

Food

7.4

Comfort

8.1

Entertainment

7.9

Overall

8.2

Boarding

8.3

Crew

8.8

Reviews

1 / 10

No tray tables for food or drink not convenient nor comfortable

7.3
Good
15,202 reviews
Southwest
8.2
Very good
6,332 reviews

Food

7.4

Comfort

8.1

Entertainment

7.9

Overall

8.2

Boarding

8.3

Crew

8.8

Reviews

1 / 10

No tray tables for food or drink not convenient nor comfortable

6.4
Okay
8,841 reviews
Southwest
8.2
Very good
6,332 reviews

Food

7.4

Comfort

8.1

Entertainment

7.9

Overall

8.2

Boarding

8.3

Crew

8.8

Reviews

1 / 10

No tray tables for food or drink not convenient nor comfortable

6.3
Okay
4,267 reviews
Southwest
8.2
Very good
6,332 reviews

Food

7.4

Comfort

8.1

Entertainment

7.9

Overall

8.2

Boarding

8.3

Crew

8.8

Reviews

1 / 10

No tray tables for food or drink not convenient nor comfortable

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airports do I use to fly from Philadelphia to St. Louis?

    Lambert-St Louis is the airport most travelers will use when flying to St. Louis from Philadelphia. Booking flights from Philadelphia (PHL) to Lambert-St Louis (STL) should be relatively easy as there are 3 daily flights to St. Louis from 5 different airlines. 2h 26m is how long a flight from Philadelphia to Lambert-St Louis will take if you book a nonstop flight.

  • Can I find flights from Philadelphia to St. Louis for under $100 on Cheapflights?

    Yes, there are multiple flights from Philadelphia to St. Louis for under $100. The cheapest flight booked recently is on Frontier for just $78, but on average you can expect to pay $155.

  • Are there nonstop flights from Philadelphia to St. Louis for under $200 on Cheapflights?

    Cheapflights has at least 20 direct flights from Philadelphia to St. Louis under $200. A good price for a nonstop flight from Philadelphia to St. Louis is less than $374.

  • Are there last-minute flights available from Philadelphia to St. Louis for under $200?

    There are currently 20+ open flights from Philadelphia to St. Louis within the next 7 days for less than $200.

  • What days are nonstop flights available from Philadelphia to St. Louis?

    You can find nonstop flights on the following days: Sunday, Monday, Tuesday, Friday, Saturday.

  • How many flights depart from Philadelphia to St. Louis on average per day?

    Per day, 7 flights depart from Philadelphia to St. Louis on average.
    Evening (6pm - Midnight) - 100% of flight departures

  • How long is the flight from Philadelphia to St. Louis?

    Airlines like Frontier and American Airlines fly from Philadelphia to St. Louis in about 2h 27m. The time it takes to get you to your destination can typically vary by up to 3h 53m. The distance between Philadelphia and St. Louis is about 816 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Philadelphia to St. Louis round-trip?

    Cheapflights users have booked flights from Philadelphia to St. Louis round-trip from $78. Another airline that can offer you cheap pricing is American Airlines. These flights start at 80% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Philadelphia to St. Louis one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $44. However, be on the lookout for offers from American Airlines and Spirit Airlines, as they are both options that can get you from Philadelphia to St. Louis for a low price.

  • What are the most popular airlines that fly from Philadelphia to St. Louis?

  • What are the most reliable airlines from Philadelphia to St. Louis?

    Consider Aer Lingus (93%), Iberia (90%) or British Airways (90%) when booking your flight. These represent the most reliable airlines when flying from Philadelphia to St. Louis.

  • What are the cheapest flights from Philadelphia to St. Louis?

    Looking for the cheapest flight from Philadelphia to St. Louis? While on average our users pay $272, our data indicates the cheapest price to be $114. The most popular route (Philadelphia - Lambert-St Louis), is priced around $147.

  • What does PHL to STL mean?

    PHL stands for Philadelphia Airport, while STL stands for Lambert-St Louis Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

  • Can I find deals for flights from Philadelphia to St. Louis that include extra baggage allowance?

    The amount of baggage you can bring depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Philadelphia to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Philadelphia to St. Louis that include hotel bookings?

    Yes. In addition to deals on Philadelphia to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to see available direct flights.

  • Can I find deals for business class flights from Philadelphia to St. Louis?

    Yes. Cheapflights offers flight deals from Philadelphia to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Philadelphia to St. Louis that allow pets onboard?

    Many airlines do offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • How recently were the Philadelphia to St. Louis flight deals updated?

    The Philadelphia to St. Louis flight deals you see on this page were last updated on 3/27.

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Top 5 airlines flying from Philadelphia to St. Louis

Discover the top 5 airlines that operate flights from Philadelphia to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,238,496 searches. Data last updated March 28, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$116Average$210FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$131Average$211FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
United AirlinesCheapest$252Average$450FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$257Average$391FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$280Average$418FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

Search flights from Philadelphia to St. Louis by cabin class

Find flights from Philadelphia to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from Philadelphia to St. Louis

Find hourly flight availability from Philadelphia to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 28, 2024.
1%of flight departuresEarly morningMidnight to 6 am
16%of flight departuresMorning6 am to noon
64%of flight departuresAfternoonNoon to 6 pm
19%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Philadelphia to St. Louis

Explore weekly flight availability from Philadelphia to St. Louis. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated March 28, 2024.
Sunday3daily flights
Monday4daily flights
Tuesday4daily flights
Wednesday3daily flights
Thursday4daily flights
Friday3daily flights
Saturday4daily flights

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How does Cheapflights help users find flights from Philadelphia to St. Louis?

Cheapflights helps you search for flights from Philadelphia to St. Louis via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Philadelphia to St. Louis?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to St. Louis from Philadelphia.

Can Cheapflights find flights from Philadelphia to St. Louis with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Philadelphia to St. Louis flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Philadelphia to St. Louis become cheaper?

Yes, Cheapflights offers price alerts on Philadelphia to St. Louis flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

Can I find deals on last-minute flights from Philadelphia to St. Louis?

Yes, you can often find last-minute deals on Philadelphia to St. Louis flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

How can I compare prices from different travel booking sites for flights from Philadelphia to St. Louis?

Cheapflights aggregates prices from various travel booking sites. This allows you to compare prices and choose the best deal.

Can I find deals for flights from Philadelphia to St. Louis that offer flexible cancellation policies?

Cancellation policies vary by airline and fare type. After entering your flight details, you can view the cancellation policies for each deal in the search results. Some deals may offer flexibility in terms of cancellation and changes.

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