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$70+ Cheap flights from Pennsylvania to Missouri

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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — STL
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
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Cheap flight deals from Pennsylvania to Missouri

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

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$183
(Mytrip)

One-way from

$70
(Cheapflightsfares)

Popular in

April

Cheapest in

June

Average price

$451

Good round-trip deal

$299 or less

Good one-way deal

$135 or less
Provider with most accurate pricing for Philadelphia-Kansas City flight deals.
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Provider most trusted by Cheapflights users for Philadelphia-Kansas City flights.
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From Pennsylvania to Missouri
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One-way flight from Pennsylvania to Missouri
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Highest demand for flights based on searches. 13% potential increase in price ($60 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Pennsylvania to Missouri.
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Price to beat on a one-way flight from Pennsylvania to Missouri.
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Find flight deals from Pennsylvania to Missouri

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

This Cheapflightsfares deal was found by Cheapflights users on 3/31. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/110:57 amLGA - STL
1 stop7h 18mSpirit Airlines
Thu 5/810:10 amSTL - LGA
1 stop12h 14mSpirit Airlines
Deal found 3/31$189
This CheapOair deal was found by Cheapflights users on 3/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/226:00 amLGA - STL
1 stop12h 15mMultiple Airlines
Wed 4/235:41 pmSTL - LGA
1 stop26h 18mMultiple Airlines
Deal found 3/30$196
This Frontier deal was found by Cheapflights users on 3/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/36:59 amJFK - STL
1 stop18h 07mFrontier
Mon 5/55:45 pmSTL - JFK
1 stop15h 40mFrontier
Deal found 3/31$199
This CheapOair deal was found by Cheapflights users on 3/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/110:00 pmLGA - STL
1 stop27h 14mFrontier
Mon 5/125:45 pmSTL - LGA
1 stop26h 14mFrontier
Deal found 3/30$200
This CheapOair deal was found by Cheapflights users on 3/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/257:00 amDCA - MCI
1 stop13h 50mFrontier
Sun 4/278:40 pmMCI - DCA
1 stop24h 19mFrontier
Deal found 3/30$200
This American Airlines deal was found by Cheapflights users on 3/31. 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.
Wed 4/2310:29 amLGA - STL
1 stop5h 24mAmerican Airlines
Wed 4/235:00 pmSTL - LGA
Nonstop2h 28mAmerican Airlines
Deal found 3/31$204
This Mytrip deal was found by Cheapflights users on 3/30. 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 5/156:00 amLGA - MCI
1 stop29h 31mSpirit Airlines
Mon 5/1911:43 amMCI - LGA
2 stops30h 21mSpirit Airlines
Deal found 3/30$206
This Booking.com deal was found by Cheapflights users on 3/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/165:26 pmIAD - STL
1 stop7h 48mFrontier
Sun 5/185:45 pmSTL - IAD
1 stop21h 51mFrontier
Deal found 3/30$208
This Mytrip deal was found by Cheapflights users on 3/30. 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 4/248:59 pmEWR - MCI
1 stop20h 05mSpirit Airlines
Mon 4/282:04 pmMCI - EWR
1 stop15h 39mSpirit Airlines
Deal found 3/30$211
This United Airlines deal was found by Cheapflights users on 3/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/245:10 pmIAD - STL
1 stop6h 35mUnited Airlines
Sun 5/258:15 amSTL - IAD
Nonstop2h 08mUnited Airlines
Deal found 3/30$214
This Southwest deal was found by Cheapflights users on 3/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/296:10 pmLGA - STL
Nonstop2h 45mSouthwest
Tue 5/67:45 pmSTL - LGA
Nonstop2h 25mSouthwest
Deal found 3/30$221
This Delta deal was found by Cheapflights users on 3/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2410:09 amIAD - STL
1 stop5h 26mDelta
Sun 5/256:45 amSTL - IAD
1 stop4h 21mDelta
Deal found 3/30$224

Cheapflights Fare Finder

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

Fly from

Pennsylvania

Fly to

Missouri

Route

Depart

Return

Price

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Tue 4/29

6:00 am-5:15 pm

1 stop12h 15m

Lambert-St Louis

Tue 5/6

6:10 pm-10:00 am

1 stop14h 50m

$183

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Tue 4/22

6:00 am-5:15 pm

1 stop12h 15m

Lambert-St Louis

Wed 4/23

5:41 pm-8:59 pm

1 stop26h 18m

$196

New YorkSt. Louis

JFK - STL

JFKSTL

New York John F Kennedy Intl

Sat 5/3

6:59 am-12:06 am

1 stop18h 07m

Lambert-St Louis

Mon 5/5

5:45 pm-10:25 am

1 stop15h 40m

$199

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Thu 5/1

10:00 pm-12:14 am

1 stop27h 14m

Lambert-St Louis

Mon 5/5

5:45 pm-8:59 pm

1 stop26h 14m

$200

Washington, D.C.Kansas City

DCA - MCI

DCAMCI

Washington, D.C. Reagan-National

Fri 4/25

7:00 am-7:50 pm

1 stop13h 50m

Kansas City

Sun 4/27

8:40 pm-12:09 pm

1 stop14h 29m

$200

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Wed 4/23

10:29 am-2:53 pm

1 stop5h 24m

Lambert-St Louis

Wed 4/23

5:00 pm-8:28 pm

Nonstop2h 28m

$204

New YorkKansas City

LGA - MCI

LGAMCI

New York LaGuardia

Thu 5/15

6:00 am-10:31 am

1 stop29h 31m

Kansas City

Mon 5/19

11:43 am-7:04 pm

2 stops30h 21m

$206

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

Fri 5/16

5:26 pm-12:14 am

1 stop7h 48m

Lambert-St Louis

Sun 5/18

5:45 pm-4:36 pm

1 stop21h 51m

$208

NewarkKansas City

EWR - MCI

EWRMCI

Newark

Thu 4/24

8:59 pm-4:04 pm

1 stop20h 05m

Kansas City

Mon 4/28

2:04 pm-6:43 am

1 stop15h 39m

$211

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

Sat 5/24

5:10 pm-10:45 pm

1 stop6h 35m

Lambert-St Louis

Sun 5/25

8:15 am-11:23 am

Nonstop2h 08m

$214

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

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

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

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

Currently, August is the cheapest month in which you can book a flight from Pennsylvania to Missouri (average of $311). Flying from Pennsylvania to Missouri in March is currently the most expensive (average of $356). 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 PA to MO?

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

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

Weekly flight availability from Pennsylvania to Missouri

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

The most flights from USPA to USMO are scheduled on a Monday (8 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in Missouri by month

Plan your trip to Missouri by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Missouri ranges from 1.1 - 5.2 inches per month. May is typically the wettest month, when rainfall can reach 5.2 in. January is typically the driest time to visit Missouri when rainfall is around 1.1 in.

Temperature in Missouri by month

Plan your trip to Missouri by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Missouri, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

Reviews of airlines servicing Missouri

Get insights into the airlines that provide service to Missouri. 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 Missouri. Reviews last updated March 31, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta from Pennsylvania to Missouri have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,818 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,276 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,899 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.9
Good
2,342 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,614 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Pennsylvania to Missouri. 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 Pennsylvania to Missouri flight route?

    Flights from Pennsylvania to Missouri have been viewed 28 times in the past calendar month.

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

    One-way options have recently been found by users for as low as $70 on Spirit Airlines. Other airlines that offer cheap prices include United Airlines from $90 and Frontier from $99 one-way.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Pennsylvania to Missouri (average of $311). Flying from Pennsylvania to Missouri in March is currently the most expensive (average of $356). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Pennsylvania to Missouri

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

Discover the top 6 airlines that operate flights from Pennsylvania to Missouri. 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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$43Average$102FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$131Average$399FlexibilityNo cancel feeOn-time71%
Spirit AirlinesCheapest$164Average$259FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$196Average$443FlexibilityNo cancel feeOn-time69%
DeltaCheapest$199Average$376FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$253Average$402FlexibilityNo cancel feeOn-time63%
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