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$55+ Cheap flights from Missouri to Philadelphia (PHL)

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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PHL
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap flight deals from Missouri to Philadelphia

Keep the following information in mind while searching for Missouri to Philadelphia flight deals. Data was last updated July 30, 2025.

Round-trip from

$127
(CheapOair)

One-way from

$55
(Mytrip)

Popular in

November

Cheapest in

September

Average price

$379

Good round-trip deal

$424 or less

Good one-way deal

$229 or less
From Missouri to Philadelphia
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One-way flight from Missouri to Philadelphia
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Highest demand for flights based on searches. 2% potential increase in price ($10 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Missouri to Philadelphia.
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Price to beat on a one-way flight from Missouri to Philadelphia.
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Find flight deals from Missouri to Philadelphia

Cheapest flights from Missouri to Philadelphia
Explore the most affordable flight options available from Missouri to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This CheapOair deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/212:30 pmSTL - PHL
1 stop5h 19mSpirit Airlines
Thu 8/287:00 amPHL - STL
1 stop7h 32mSpirit Airlines
Deal found 7/28$127
This CheapOair deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/182:30 pmSTL - PHL
1 stop5h 19mMultiple Airlines
Wed 8/208:02 pmPHL - STL
1 stop18h 05mMultiple Airlines
Deal found 7/28$178
This Cheapflightsfares deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/45:11 pmSTL - PHL
1 stop6h 27mFrontier
Mon 12/84:12 pmPHL - STL
1 stop7h 34mFrontier
Deal found 7/29$215
This American Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/266:00 amSTL - PHL
Nonstop2h 18mAmerican Airlines
Tue 9/27:05 pmPHL - STL
Nonstop2h 42mAmerican Airlines
Deal found 7/27$217
This FlightHub deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/88:01 pmMCI - PHL
1 stop8h 08mFrontier
Wed 8/136:15 amPHL - MCI
1 stop13h 08mFrontier
Deal found 7/27$245
This Mytrip deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/185:15 amMCI - PHL
1 stop6h 47mSpirit Airlines
Sun 9/219:50 pmPHL - MCI
2 stops13h 38mSpirit Airlines
Deal found 7/30$247
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/266:34 pmSGF - PHL
1 stop5h 36mAmerican Airlines
Sat 9/275:00 amPHL - SGF
1 stop7h 33mAmerican Airlines
Deal found 7/30$249
This CheapOair deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/146:00 amMCI - PHL
1 stop7h 38mMultiple Airlines
Mon 8/181:02 pmPHL - MCI
1 stop7h 02mMultiple Airlines
Deal found 7/29$253
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/233:54 pmSGF - PHL
1 stop8h 02mDelta
Tue 8/264:59 pmPHL - SGF
1 stop6h 06mDelta
Deal found 7/28$270
This American Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/301:33 pmMCI - PHL
Nonstop2h 46mAmerican Airlines
Sun 8/3110:55 amPHL - MCI
Nonstop2h 53mAmerican Airlines
Deal found 7/28$289
This Mytrip deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/229:57 pmSGF - PHL
2 stops21h 52mMultiple Airlines
Mon 8/259:00 amPHL - SGF
1 stop13h 02mMultiple Airlines
Deal found 7/29$370
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/148:05 amJLN - PHL
2 stops9h 43mUnited Airlines
Mon 8/186:52 pmPHL - JLN
1 stop5h 48mUnited Airlines
Deal found 7/29$374

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated July 30, 2025.
Use the filters below to find and compare flights from Missouri to Philadelphia that are best for you.

Fly from

Missouri

Fly to

Philadelphia

Route

Depart

Return

Price

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Thu 8/21

2:30 pm-8:49 pm

1 stop5h 19m

Philadelphia

Thu 8/28

7:00 am-1:32 pm

1 stop7h 32m

$127

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Mon 8/18

2:30 pm-8:49 pm

1 stop5h 19m

Philadelphia

Wed 8/20

8:02 pm-1:07 pm

1 stop18h 05m

$178

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Mon 8/4

5:40 pm-1:09 am

1 stop6h 29m

Philadelphia

Tue 8/5

5:30 pm-11:47 pm

1 stop7h 17m

$216

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Tue 8/26

6:00 am-9:18 am

Nonstop2h 18m

Philadelphia

Tue 9/2

7:05 pm-8:47 pm

Nonstop2h 42m

$217

Kansas CityPhiladelphia

MCI - PHL

MCIPHL

Kansas City

Fri 8/8

8:01 pm-5:09 am

1 stop8h 08m

Philadelphia

Wed 8/13

6:15 am-6:23 pm

1 stop13h 08m

$245

Kansas CityPhiladelphia

MCI - PHL

MCIPHL

Kansas City

Thu 9/18

5:15 am-1:02 pm

1 stop6h 47m

Philadelphia

Sun 9/21

9:50 pm-10:28 am

2 stops13h 38m

$247

SpringfieldPhiladelphia

SGF - PHL

SGFPHL

Springfield-Branson

Fri 9/26

6:34 pm-1:10 am

1 stop5h 36m

Philadelphia

Sat 9/27

5:00 am-11:33 am

1 stop7h 33m

$249

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Tue 9/2

5:25 am-2:30 pm

1 stop8h 05m

Philadelphia

Tue 9/2

6:25 pm-9:40 pm

1 stop4h 15m

$253

Kansas CityPhiladelphia

MCI - PHL

MCIPHL

Kansas City

Thu 8/14

6:00 am-2:38 pm

1 stop7h 38m

Philadelphia

Mon 8/18

1:02 pm-7:04 pm

1 stop7h 02m

$253

SpringfieldPhiladelphia

SGF - PHL

SGFPHL

Springfield-Branson

Sat 8/23

3:54 pm-12:56 am

1 stop8h 02m

Philadelphia

Tue 8/26

4:59 pm-10:05 pm

1 stop6h 06m

$270

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 30 results
1
2
3

Best time to book a flight from Missouri to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Missouri with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Missouri to Philadelphia

What is the cheapest month to book a flight from Missouri to Philadelphia?

Currently, August is the cheapest month in which you can book a flight from Missouri to Philadelphia (average of $236). Flying from Missouri to Philadelphia in March is currently the most expensive (average of $295). 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.

What is the cheapest time of day to fly from MO to PHL?

Find hourly flight availability from Missouri to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Missouri to Philadelphia as you normally would.

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. 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 Philadelphia. Reviews last updated July 30, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Missouri to Philadelphia by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,980 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,896 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Sun Country Air
6.9
Okay
334 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Related info for your journey

Find useful and relevant information for your journey from Missouri to Philadelphia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Philadelphia from Missouri?

    For a flight from Missouri to Philadelphia, you will be flying into Philadelphia. Philadelphia (PHL) is just 7.0 mi from the center of the city.

  • How popular is this Missouri to Philadelphia flight route?

    Flights from Missouri to Philadelphia have been viewed 13 times in the past calendar month.

  • What are the cheapest airlines to fly from Missouri to Philadelphia one-way?

    One-way options have recently been found by users for as low as $55 on Spirit Airlines. Other airlines that offer cheap prices include American Airlines from $109 and Frontier from $109 one-way.

  • What are the most popular routes from Missouri to Philadelphia?

    Most travelers choose Kansas City - Philadelphia, Lambert-St Louis - Philadelphia or Springfield-Branson - Philadelphia when deciding on the best route from Missouri to Philadelphia.

  • What are the most reliable airlines from Missouri to Philadelphia?

    No one likes to see their flight delayed. When booking a flight from Missouri to Philadelphia consider choosing PSA Airlines (100%), Southwest (83%) or Qatar Airways (80%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Missouri to Philadelphia?

    While on average a flight from Missouri to Philadelphia is generally $1,564, our data shows the cheapest flight currently is $151. When looking at the most popular route, (Kansas City - Philadelphia), you can expect to pay $177 for that flight.

  • Can I find deals for flights from Missouri to Philadelphia that include hotel bookings?

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

  • How can I find direct flights from Missouri to Philadelphia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missouri to Philadelphia.

  • Can I find deals for business class flights from Missouri to Philadelphia?

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

  • What is the cheapest month to book a flight from Missouri to Philadelphia?

    Currently, August is the cheapest month in which you can book a flight from Missouri to Philadelphia (average of $236). Flying from Missouri to Philadelphia in March is currently the most expensive (average of $295). 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.

See more FAQs

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Vineland
Wildwood
King of Prussia
Pottstown
Cherry Hill
Ocean City
Chester
Millville
Reading
Ephrata
Camden
Dewey Beach
Dover
Elkton
Essington
Willow Grove
Newark
Exton
Glen Mills
Springfield

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Missouri to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Missouri to Philadelphia

Discover the top 6 airlines that operate flights from Missouri to Philadelphia. 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 2,558,603 searches. Data last updated July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$185FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$153Average$251FlexibilityNo cancel feeOn-time65%
DeltaCheapest$196Average$382FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$200Average$475FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$283Average$386FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$284Average$419FlexibilityNo cancel feeOn-time63%

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