Pennsylvania

$55+ 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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PHL
Nov 29 — Dec 61
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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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$124
(Frontier)

One-way from

$55
(Priceline)

Popular in

March

Cheapest in

August

Average price

$392

Good round-trip deal

$263 or less

Good one-way deal

$165 or less
Provider with most accurate pricing for Lambert-St Louis-Philadelphia flight deals.
Provider most trusted by Cheapflights users for Lambert-St Louis-Philadelphia flights.
From Missouri to Pennsylvania
One-way flight from Missouri to Pennsylvania
Highest demand for flights based on searches. 5% potential increase in price ($20 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Average for round-trip flights in October 2025
Price to beat on a round-trip flight from Missouri to Pennsylvania.
Price to beat on a one-way flight from Missouri to Pennsylvania.

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 October 30, 2025.

This Frontier deal was found by Cheapflights users on 10/30. 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.
Mon 12/812:46 pmMCI - EWR
1 stop7h 49mFrontier
Fri 12/125:59 amEWR - MCI
1 stop6h 19mFrontier
Deal found 10/30$124
This Mytrip deal was found by Cheapflights users on 10/29. 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.
Thu 11/1311:12 amMCI - EWR
1 stop12h 22mMultiple Airlines
Mon 11/176:38 amEWR - MCI
1 stop12h 50mMultiple Airlines
Deal found 10/29$145
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/512:13 pmMCI - EWR
1 stop8h 17mFrontier
Thu 12/1110:30 pmEWR - MCI
1 stop13h 48mFrontier
Deal found 10/27$147
This Expedia deal was found by Cheapflights users on 10/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1711:12 amMCI - EWR
1 stop12h 22mMultiple Airlines
Wed 11/195:14 amEWR - MCI
1 stop8h 14mMultiple Airlines
Deal found 10/30$160
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/812:46 pmMCI - EWR
1 stop7h 49mFrontier
Thu 12/1110:30 pmEWR - MCI
1 stop13h 48mFrontier
Deal found 10/30$162
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/512:13 pmMCI - EWR
1 stop8h 17mMultiple Airlines
Mon 12/85:15 amEWR - MCI
1 stop7h 36mMultiple Airlines
Deal found 10/27$163
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/113:47 pmMCI - EWR
1 stop8h 42mMultiple Airlines
Fri 12/125:59 amEWR - MCI
1 stop6h 19mMultiple Airlines
Deal found 10/27$166
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/43:47 pmMCI - EWR
1 stop8h 42mMultiple Airlines
Mon 12/85:15 amEWR - MCI
1 stop7h 36mMultiple Airlines
Deal found 10/30$167
This Cheapflightsfares deal was found by Cheapflights users on 10/29. 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 11/136:00 amMCI - EWR
1 stop6h 21mSpirit Airlines
Wed 11/195:14 amEWR - MCI
1 stop8h 14mSpirit Airlines
Deal found 10/29$174
This CheapOair deal was found by Cheapflights users on 10/28. 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 11/136:00 amMCI - EWR
1 stop6h 21mSpirit Airlines
Mon 11/179:00 amEWR - MCI
1 stop10h 28mSpirit Airlines
Deal found 10/28$175
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1311:12 amMCI - EWR
1 stop7h 40mMultiple Airlines
Sun 11/1611:30 amEWR - MCI
1 stop23h 47mMultiple Airlines
Deal found 10/30$176
This Mytrip deal was found by Cheapflights users on 10/30. 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.
Wed 11/196:49 pmMCI - JFK
1 stop16h 17mFrontier
Sat 11/221:01 pmJFK - MCI
1 stop7h 32mFrontier
Deal found 10/30$192

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 October 30, 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. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Sat 11/22

8:55 am-11:50 am

Nonstop1h 55m

Washington, D.C. Reagan-National

Mon 11/24

8:00 am-9:20 am

Nonstop2h 20m

$261

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Thu 1/15

1:05 pm-4:00 pm

Nonstop1h 55m

Washington, D.C. Reagan-National

Mon 1/19

12:00 pm-1:35 pm

Nonstop2h 35m

$263

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Wed 12/10

8:45 am-11:40 am

Nonstop1h 55m

Washington, D.C. Reagan-National

Sat 12/13

12:20 pm-1:40 pm

Nonstop2h 20m

$263

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Thu 12/4

8:45 am-11:40 am

Nonstop1h 55m

Washington, D.C. Reagan-National

Mon 12/8

6:10 pm-7:35 pm

Nonstop2h 25m

$263

Kansas CityWashington, D.C.

MCI - IAD

MCIIAD

Kansas City

Wed 12/10

5:45 pm-9:16 pm

Nonstop2h 31m

Washington, D.C. Dulles Intl

Sat 1/17

1:05 pm-3:10 pm

Nonstop3h 05m

$265

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Sat 2/7

11:22 am-2:58 pm

Nonstop2h 36m

Newark

Sun 2/15

9:00 am-10:58 am

Nonstop2h 58m

$267

Kansas CityWashington, D.C.

MCI - IAD

MCIIAD

Kansas City

Wed 1/21

5:45 pm-9:17 pm

Nonstop2h 32m

Washington, D.C. Dulles Intl

Sat 1/24

1:05 pm-3:10 pm

Nonstop3h 05m

$269

St. LouisNew York

STL - LGA

STLLGA

Lambert-St Louis

Wed 11/19

9:35 am-12:55 pm

Nonstop2h 20m

New York LaGuardia

Tue 12/2

10:45 am-12:40 pm

Nonstop2h 55m

$273

St. LouisWashington, D.C.

STL - IAD

STLIAD

Lambert-St Louis

Mon 12/8

8:30 am-11:40 am

Nonstop2h 10m

Washington, D.C. Dulles Intl

Mon 12/15

8:20 am-2:23 pm

1 stop7h 03m

$273

St. LouisWashington, D.C.

STL - DCA

STLDCA

Lambert-St Louis

Thu 12/11

8:45 am-11:40 am

Nonstop1h 55m

Washington, D.C. Reagan-National

Mon 12/15

1:15 pm-4:20 pm

1 stop4h 05m

$273

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

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 $119). Flying from Missouri to Pennsylvania in June is currently the most expensive (average of $229). 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 October 30, 2025.

It’s optimal to fly from Missouri to Pennsylvania in the evening. By choosing this option you can save up to 45% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from Missouri to Pennsylvania?

Use this chart to determine the cheapest time to fly round-trip from Missouri to Pennsylvania. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Missouri to Pennsylvania flight should consider departing on Thursday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Missouri to Pennsylvania?

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 October 30, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from Missouri to Pennsylvania have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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?

  • How long is the flight from Missouri to Pennsylvania?

    Departing from Missouri to Pennsylvania will take you 1h 55m. There are 717 mi between Missouri and Pennsylvania. Most flights are nonstop.

  • 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 Frontier ($94), Spirit Airlines ($100), and United Airlines ($120).

  • 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 $119). Flying from Missouri to Pennsylvania in June is currently the most expensive (average of $229). 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.

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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$106Average$228FlexibilityNo cancel feeOn-time65%
FrontierCheapest$119Average$227FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$198Average$423FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$204Average$431FlexibilityNo cancel feeOn-time71%
DeltaCheapest$220Average$361FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$248Average$402FlexibilityNo cancel feeOn-time63%

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