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Cheap flights from Missouri to Philadelphia from $72

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to Philadelphia departing on 9/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Missouri to Philadelphia

Cheap round-trip flights

Spirit Airlines Logo
2:30 pm - 8:49 pmSTL-PHL
5h 19m1 stop
Spirit Airlines Logo
7:00 am - 1:32 pmPHL-STL
7h 32m1 stop
$146Spirit Airlines
Find Deal
Fri, Aug 22 - Sun, Aug 24
Spirit Airlines Logo
2:30 pm - 8:49 pmSTL-PHL
5h 19m1 stop
Spirit Airlines Logo
7:00 am - 1:32 pmPHL-STL
7h 32m1 stop
$147Spirit Airlines
Find Deal
Fri, Aug 22 - Sun, Aug 24
Logo
3:02 pm - 12:20 amSTL-PHL
8h 18m1 stop
Logo
7:00 am - 1:32 pmPHL-STL
7h 32m1 stop
$194
Find Deal
Sat, Aug 23 - Mon, Aug 25
Logo
2:30 pm - 8:49 pmSTL-PHL
5h 19m1 stop
Logo
9:47 am - 6:36 pmPHL-STL
9h 49m2 stops
$216
Find Deal
Sun, Aug 31 - Sun, Sep 7
American Airlines Logo
6:00 am - 9:18 amSTL-PHL
2h 18mnonstop
American Airlines Logo
3:50 pm - 5:17 pmPHL-STL
2h 27mnonstop
$217American Airlines
Find Deal
Thu, Sep 4 - Mon, Sep 8
Frontier Logo
7:29 pm - 5:09 amSTL-PHL
8h 40m1 stop
Frontier Logo
8:02 pm - 1:07 pmPHL-STL
18h 05m1 stop
$225Frontier
Find Deal
Sat, Aug 16 - Sat, Aug 23
Frontier Logo
5:40 pm - 1:09 amSTL-PHL
6h 29m1 stop
Frontier Logo
5:30 pm - 11:47 pmPHL-STL
7h 17m1 stop
$226Frontier
Find Deal
Mon, Aug 11 - Wed, Aug 13
Southwest Logo
7:25 pm - 10:35 pmSTL-PHL
2h 10mnonstop
Southwest Logo
4:50 pm - 8:30 pmPHL-STL
4h 40m1 stop
$227Southwest
Find Deal
Thu, Sep 4 - Sat, Sep 6
Southwest Logo
6:25 am - 4:00 pmSTL-PHL
8h 35m2 stops
Southwest Logo
4:45 pm - 6:05 pmPHL-STL
2h 20mnonstop
$232Southwest
Find Deal
Tue, Sep 16 - Wed, Sep 17
American Airlines Logo
6:00 am - 9:18 amSTL-PHL
2h 18mnonstop
American Airlines Logo
11:10 am - 12:35 pmPHL-STL
2h 25mnonstop
$234American Airlines
Find Deal
Thu, Aug 28 - Sun, Aug 31

American Airlines flights from Missouri to Philadelphia

Our best American Airlines deals on Missouri to Philadelphia flight tickets
American Airlines
Sep 4
STL6:00 amLambert-St Louis
2h 18m
PHL9:18 amPhiladelphia
Sep 8
PHL3:50 pmPhiladelphia
2h 27m
STL5:17 pmLambert-St Louis
$217
Find similar
American Airlines
Aug 28
STL6:00 amLambert-St Louis
2h 18m
PHL9:18 amPhiladelphia
Aug 31
PHL11:10 amPhiladelphia
2h 25m
STL12:35 pmLambert-St Louis
$234
Find similar
American Airlines
Aug 23
STL4:54 pmLambert-St Louis
2h 20m
PHL8:14 pmPhiladelphia
Aug 25
PHL6:39 pmPhiladelphia
5h 26m
1 stop
STL11:05 pmLambert-St Louis
$243
Find similar

United Airlines flights from Missouri to Philadelphia

Our best United Airlines deals on Missouri to Philadelphia flight tickets
United Airlines
Jan 13
SGF3:03 pmSpringfield-Branson
5h 29m
1 stop
PHL9:32 pmPhiladelphia
Jan 17
PHL10:10 amPhiladelphia
11h 24m
2 stops
SGF8:34 pmSpringfield-Branson
$256
Find similar
United Airlines
Aug 15
SGF6:25 pmSpringfield-Branson
5h 05m
1 stop
PHL12:30 amPhiladelphia
Aug 19
PHL1:03 pmPhiladelphia
5h 42m
1 stop
SGF5:45 pmSpringfield-Branson
$359
Find similar
United Airlines
Aug 21
SGF6:20 pmSpringfield-Branson
5h 00m
1 stop
PHL12:20 amPhiladelphia
Aug 25
PHL1:03 pmPhiladelphia
11h 39m
2 stops
SGF11:42 pmSpringfield-Branson
$375
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Missouri to Philadelphia 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, momondo users made 832,500 searches. Data last updated August 2, 2025.
Use the filters below to find and compare flights from Missouri to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Fri 8/22

2:30 pm-8:49 pm

1 stop5h 19m

Philadelphia

Sun 8/24

7:00 am-1:32 pm

1 stop7h 32m

$146

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Fri 8/22

2:30 pm-8:49 pm

1 stop5h 19m

Philadelphia

Sun 8/24

7:00 am-1:32 pm

1 stop7h 32m

$147

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Sat 8/23

3:02 pm-12:20 am

1 stop8h 18m

Philadelphia

Mon 8/25

7:00 am-1:32 pm

1 stop7h 32m

$194

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Sun 8/31

2:30 pm-8:49 pm

1 stop5h 19m

Philadelphia

Sun 9/7

9:47 am-6:36 pm

2 stops9h 49m

$216

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Thu 9/4

6:00 am-9:18 am

Nonstop2h 18m

Philadelphia

Mon 9/8

3:50 pm-5:17 pm

Nonstop2h 27m

$217

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Sat 8/16

7:29 pm-5:09 am

1 stop8h 40m

Philadelphia

Sat 8/23

8:02 pm-1:07 pm

1 stop18h 05m

$225

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Mon 8/11

5:40 pm-1:09 am

1 stop6h 29m

Philadelphia

Wed 8/13

5:30 pm-11:47 pm

1 stop7h 17m

$226

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Thu 9/4

7:25 pm-10:35 pm

Nonstop2h 10m

Philadelphia

Sat 9/6

4:50 pm-8:30 pm

1 stop4h 40m

$227

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Tue 9/16

6:25 am-4:00 pm

2 stops8h 35m

Philadelphia

Wed 9/17

4:45 pm-6:05 pm

Nonstop2h 20m

$232

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Thu 8/28

6:00 am-9:18 am

Nonstop2h 18m

Philadelphia

Sun 8/31

11:10 am-12:35 pm

Nonstop2h 25m

$234

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Philadelphia from

How to get the cheapest flight ticket from Missouri to Philadelphia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from Missouri is in August. Flight prices, which tend to average around $246, are often lower during this time because this is during the off-season. The month of September is another great option to travel to Philadelphia, with average flight prices from Missouri averaging around $265.

What is the cheapest day to depart on your flight to Philadelphia?

The cheapest day to depart from Missouri to Philadelphia is on a Thursday. Travelers who choose to depart for Philadelphia on a Thursday will often find tickets for as low as $654. On the other hand, Sunday is the most expensive day to depart from Missouri because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $917.

What is the cheapest time of day to depart on your flight to Philadelphia?

According to our data, the cheapest time of day to fly to Philadelphia is in the evening. momondo users have found flights departing from Missouri to Philadelphia in the evening for as low as $405. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Philadelphia is at noon when prices are around $1,163.

What is the cheapest Missouri to Philadelphia flight route?

Fly from Lambert-St Louis to Philadelphia for the best Missouri - Philadelphia flight prices

How far in advance should I book a flight to Philadelphia?

You are more likely to see cheaper flights to Philadelphia from Missouri when booking weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around $366 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from Missouri for as low as $285 on momondo.

What cabin class options are available on Missouri to Philadelphia flights?

There are 4 cabin classes available to choose from on Missouri to Philadelphia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Missouri to Philadelphia flights?

You could potentially save up to 18% on your flight if you consider stops on a Missouri to Philadelphia flight.

Cheap Missouri to Philadelphia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Missouri to Philadelphia

Best Price Found

$72

Fastest flight time

2h 06m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun

Airports in Philadelphia

1 airport
The best one-way flight to Philadelphia from Missouri in the past 72 hours is $72. The best round-trip flight deal from Missouri to Philadelphia found on momondo in the last 72 hours is $146.
The fastest flight from Missouri to Philadelphia takes 2h 06m
Direct flights go from Missouri to Philadelphia on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. Airlines offering direct flights are: Southwest and American Airlines.
There is 1 airport near Philadelphia: Philadelphia (PHL)
Search flight deals

  • When did momondo last update prices for flights from Missouri to Philadelphia Airport?

    Prices for flights from Missouri to Philadelphia Airport were last updated today.

  • How many operators does momondo search for flights from Missouri to Philadelphia Airport?

  • How old do you have to be to fly from Missouri to Philadelphia Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Missouri to Philadelphia Airport.

  • What documentation or ID do you need to fly to Philadelphia Airport?

    The travel and health documents required for your trip to Philadelphia Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Philadelphia Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Missouri to Philadelphia?

Best airlines flying from Missouri to Philadelphia

Compare and see reviews for airlines that fly from Missouri to Philadelphia with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $58Free CancellationRating
5.8
3,241 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $153Free CancellationRating
6.3
8,054 reviews
Search Spirit Airlines flights
DeltaPriceFrom $196Free CancellationRating
8.0
7,983 reviews
Search Delta flights
American AirlinesPriceFrom $200Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $283Free CancellationRating
7.4
8,904 reviews
Search United Airlines flights
SouthwestPriceFrom $284Free CancellationRating
8.0
4,246 reviews
Search Southwest flights

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
Rehoboth Beach
Cape May
Ocean City
Wildwood Crest
King of Prussia
Reading
Dewey Beach
Newark
Dover
North Wildwood
Cherry Hill
Lewes
Avalon
Stone Harbor
Vineland
Exton
Essington
New Castle
Pottstown

Why use momondo?

Why should I use momondo to find a flight deal from Missouri to Philadelphia?

It is quick and easy to find Missouri to Philadelphia flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Philadelphia that suits you.

Can I find flights from Missouri to Philadelphia with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Missouri to Philadelphia flights to just show those with flexible booking policies.

How can momondo help me find flights from Missouri to Philadelphia?

momondo helps you find the best flight between Missouri and Philadelphia by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Missouri to Philadelphia right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Missouri to Philadelphia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Philadelphia and let you know when they change.

An easier way to manage your Philadelphia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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