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Pennsylvania

$54+ Cheap flights from Missouri to Pennsylvania

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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PHL
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Missouri to Pennsylvania

Keep the following information in mind while searching for Missouri to Pennsylvania flight deals. Data was last updated July 31, 2025.

Round-trip from

$182
(Mytrip)

One-way from

$54
(Booking.com)

Popular in

November

Cheapest in

September

Average price

$379

Good round-trip deal

$296 or less

Good one-way deal

$229 or less
From Missouri to Pennsylvania
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One-way flight from Missouri to Pennsylvania
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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 Pennsylvania.
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Price to beat on a one-way flight from Missouri to Pennsylvania.
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Find flight deals from Missouri to Pennsylvania

Cheapest flights from Missouri to Pennsylvania
Explore the most affordable flight options available from Missouri to Pennsylvania. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

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 8/142:30 pmSTL - EWR
1 stop5h 30mSpirit Airlines
Mon 8/1810:00 amEWR - STL
1 stop4h 32mSpirit Airlines
Deal found 7/30$182
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1112:05 pmSTL - LGA
1 stop5h 59mSpirit Airlines
Sun 9/146:30 amLGA - STL
1 stop5h 20mSpirit Airlines
Deal found 7/30$184
This Gotogate deal was found by Cheapflights users on 7/31. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2110:17 amSTL - LGA
1 stop9h 42mMultiple Airlines
Mon 8/256:35 amLGA - STL
1 stop7h 57mMultiple Airlines
Deal found 7/31$188
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/186:05 amSTL - LGA
Nonstop2h 28mDelta
Sun 9/216:20 amLGA - STL
Nonstop2h 36mDelta
Deal found 7/29$197
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/174:10 pmSTL - JFK
Nonstop2h 48mDelta
Sat 9/202:55 pmJFK - STL
Nonstop2h 53mDelta
Deal found 7/29$197
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/22:52 pmSTL - IAD
1 stop7h 27mFrontier
Sat 8/96:10 amIAD - STL
1 stop8h 49mFrontier
Deal found 7/30$198
This Trip.com deal was found by Cheapflights users on 7/31. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/65:15 amMCI - LGA
1 stop6h 15mSpirit Airlines
Sat 9/131:29 pmLGA - MCI
1 stop10h 38mSpirit Airlines
Deal found 7/31$202
This Flightnetwork deal was found by Cheapflights users on 7/31. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/45:15 amMCI - EWR
1 stop6h 32mSpirit Airlines
Mon 9/810:55 amEWR - MCI
1 stop13h 12mSpirit Airlines
Deal found 7/31$203
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/22:52 pmSTL - EWR
1 stop8h 52mFrontier
Thu 8/75:59 amEWR - STL
1 stop8h 35mFrontier
Deal found 7/28$208
This American Airlines deal was found by Cheapflights users on 7/31. 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 9/67:23 amSTL - LGA
1 stop7h 51mAmerican Airlines
Fri 9/128:30 pmLGA - STL
Nonstop2h 52mAmerican Airlines
Deal found 7/31$212
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.
Sat 9/137:01 amSTL - JFK
1 stop6h 57mAmerican Airlines
Sat 9/2011:40 amJFK - STL
1 stop5h 35mAmerican Airlines
Deal found 7/30$216
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.
Sat 9/136:29 amSTL - EWR
1 stop5h 30mAmerican Airlines
Sat 9/202:27 pmEWR - STL
1 stop7h 05mAmerican Airlines
Deal found 7/30$216

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri to Pennsylvania 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 31, 2025.
Use the filters below to find and compare flights from Missouri to Pennsylvania that are best for you.

Fly from

Missouri

Fly to

Pennsylvania

Route

Depart

Return

Price

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Thu 8/14

2:30 pm-9:00 pm

1 stop5h 30m

Newark

Mon 8/18

10:00 am-1:32 pm

1 stop4h 32m

$182

St. LouisNew York

STL - LGA

STLLGA

Lambert-St Louis

Thu 9/11

12:05 pm-7:04 pm

1 stop5h 59m

New York LaGuardia

Sun 9/14

6:30 am-10:50 am

1 stop5h 20m

$184

St. LouisNew York

STL - LGA

STLLGA

Lambert-St Louis

Thu 8/21

10:17 am-8:59 pm

1 stop9h 42m

New York LaGuardia

Mon 8/25

6:35 am-1:32 pm

1 stop7h 57m

$188

St. LouisNew York

STL - LGA

STLLGA

Lambert-St Louis

Thu 9/18

6:05 am-9:33 am

Nonstop2h 28m

New York LaGuardia

Sun 9/21

6:20 am-7:56 am

Nonstop2h 36m

$197

St. LouisNew York

STL - JFK

STLJFK

Lambert-St Louis

Wed 9/17

4:10 pm-7:58 pm

Nonstop2h 48m

New York John F Kennedy Intl

Sat 9/20

2:55 pm-4:48 pm

Nonstop2h 53m

$197

Kansas CityNew York

MCI - LGA

MCILGA

Kansas City

Sat 9/6

5:15 am-12:30 pm

1 stop6h 15m

New York LaGuardia

Sat 9/13

1:29 pm-11:07 pm

1 stop10h 38m

$202

Kansas CityNewark

MCI - EWR

MCIEWR

Kansas City

Thu 9/4

5:15 am-12:47 pm

1 stop6h 32m

Newark

Mon 9/8

10:55 am-11:07 pm

1 stop13h 12m

$203

St. LouisWashington, D.C.

STL - IAD

STLIAD

Lambert-St Louis

Sat 8/30

3:02 pm-11:00 pm

1 stop6h 58m

Washington, D.C. Dulles Intl

Mon 9/1

6:10 am-12:56 pm

1 stop7h 46m

$208

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Fri 8/22

2:01 pm-12:43 am

1 stop9h 42m

Newark

Sat 8/30

5:55 am-1:33 pm

1 stop8h 38m

$208

St. LouisNew York

STL - LGA

STLLGA

Lambert-St Louis

Sat 9/6

7:23 am-4:14 pm

1 stop7h 51m

New York LaGuardia

Fri 9/12

8:30 pm-10:22 pm

Nonstop2h 52m

$212

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 60 results
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Best time to book a flight from Missouri to Pennsylvania

Have a flexible travel schedule? Discover the best time to fly to Pennsylvania 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 Pennsylvania

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

Currently, August is the cheapest month in which you can book a flight from Missouri to Pennsylvania (average of $236). Flying from Missouri to Pennsylvania 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 PA?

Find hourly flight availability from Missouri to Pennsylvania. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2025.

When flying from Missouri to Pennsylvania, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Missouri to Pennsylvania

Explore weekly flight availability from Missouri to Pennsylvania. 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 July 31, 2025.

The most flights from USMO to USPA are scheduled on a Thursday (11 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).

Reviews of airlines servicing Pennsylvania

Get insights into the airlines that provide service to Pennsylvania. 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 Pennsylvania. Reviews last updated July 31, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta from Missouri to Pennsylvania have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

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

  • How popular is this Missouri to Pennsylvania flight route?

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

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

    The cheapest airlines for a one-way flight from Missouri to Pennsylvania are Spirit Airlines ($54), American Airlines ($98), and Delta ($99).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Missouri to Pennsylvania 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 Pennsylvania?

    Currently, August is the cheapest month in which you can book a flight from Missouri to Pennsylvania (average of $236). Flying from Missouri to Pennsylvania 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

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Alternative routes for Missouri to Pennsylvania

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 Pennsylvania

Discover the top 6 airlines that operate flights from Missouri to Pennsylvania. 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 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$185FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$133Average$256FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$191Average$430FlexibilityNo cancel feeOn-time71%
DeltaCheapest$196Average$360FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$198Average$433FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$270Average$398FlexibilityNo cancel feeOn-time63%

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