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$63+ 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 7/17. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — STL
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
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 junio 12, 2025.

Round-trip from

$206
(American Airlines)

One-way from

$63
(FlightHub)

Popular in

April

Cheapest in

August

Average price

$384

Good round-trip deal

$303 or less

Good one-way deal

$184 or less
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. 9% potential increase in price ($39 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in June 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 junio 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/10. 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.
vie. 7/42:59 pmDCA - STL
Nonstop2h 29mAmerican Airlines
mar. 7/86:00 amSTL - DCA
Nonstop2h 10mAmerican Airlines
Deal found 6/10$206
This Delta deal was found by Cheapflights users on 6/11. 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.
sáb. 9/276:10 amIAD - STL
1 stop4h 25mDelta
lun. 9/295:40 pmSTL - IAD
1 stop5h 27mDelta
Deal found 6/11$208
This Delta deal was found by Cheapflights users on 6/12. 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.
sáb. 9/610:11 amDCA - STL
1 stop5h 17mDelta
lun. 9/85:11 pmSTL - DCA
1 stop5h 35mDelta
Deal found 6/12$208
This United Airlines deal was found by Cheapflights users on 6/10. 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.
mié. 7/306:35 amIAD - STL
1 stop6h 52mUnited Airlines
mié. 8/66:33 amSTL - IAD
1 stop4h 22mUnited Airlines
Deal found 6/10$213
This United Airlines deal was found by Cheapflights users on 6/10. 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.
mié. 7/308:30 amDCA - STL
1 stop4h 57mUnited Airlines
mié. 8/65:00 amSTL - DCA
1 stop4h 56mUnited Airlines
Deal found 6/10$213
This Southwest deal was found by Cheapflights users on 6/10. 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.
lun. 6/306:35 pmDCA - STL
Nonstop2h 15mSouthwest
mié. 7/25:45 pmSTL - DCA
1 stop5h 05mSouthwest
Deal found 6/10$214
This Frontier deal was found by Cheapflights users on 6/11. 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.
sáb. 7/266:10 amIAD - STL
1 stop8h 49mFrontier
sáb. 8/22:52 pmSTL - IAD
1 stop7h 27mFrontier
Deal found 6/11$221
This Cheapflightsfares deal was found by Cheapflights users on 6/12. 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.
sáb. 7/510:15 amEWR - MCI
1 stop11h 14mSpirit Airlines
mar. 7/87:50 pmMCI - EWR
1 stop8h 58mSpirit Airlines
Deal found 6/12$234
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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.
dom. 7/135:59 amLGA - STL
1 stop4h 53mSpirit Airlines
sáb. 7/1910:45 amSTL - LGA
1 stop11h 26mSpirit Airlines
Deal found 6/11$236
This Delta deal was found by Cheapflights users on 6/10. 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.
mar. 7/291:29 pmLGA - STL
Nonstop2h 49mDelta
mar. 8/59:16 amSTL - LGA
Nonstop2h 28mDelta
Deal found 6/10$237
This Mytrip deal was found by Cheapflights users on 6/11. 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.
vie. 7/115:23 pmEWR - STL
1 stop22h 16mSpirit Airlines
dom. 7/1310:47 amSTL - EWR
2 stops22h 43mSpirit Airlines
Deal found 6/11$237
This Booking.com deal was found by Cheapflights users on 6/11. 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.
mié. 7/210:00 pmLGA - STL
1 stop22h 24mMultiple Airlines
mié. 7/911:24 amSTL - LGA
1 stop10h 47mMultiple Airlines
Deal found 6/11$239

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 junio 12, 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

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

vie. 7/4

2:59 pm-4:28 pm

Nonstop2h 29m

Lambert-St Louis

mar. 7/8

6:00 am-9:10 am

Nonstop2h 10m

$206

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

sáb. 9/27

6:10 am-9:35 am

1 stop4h 25m

Lambert-St Louis

lun. 9/29

5:40 pm-12:07 am

1 stop5h 27m

$208

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

sáb. 9/6

10:11 am-2:28 pm

1 stop5h 17m

Lambert-St Louis

lun. 9/8

5:11 pm-11:46 pm

1 stop5h 35m

$208

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

mié. 7/30

6:35 am-12:27 pm

1 stop6h 52m

Lambert-St Louis

mié. 8/6

6:33 am-11:55 am

1 stop4h 22m

$213

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

mié. 7/30

8:30 am-12:27 pm

1 stop4h 57m

Lambert-St Louis

mié. 8/6

5:00 am-10:56 am

1 stop4h 56m

$213

Washington, D.C.St. Louis

DCA - STL

DCASTL

Washington, D.C. Reagan-National

lun. 6/30

6:35 pm-7:50 pm

Nonstop2h 15m

Lambert-St Louis

mié. 7/2

5:45 pm-11:50 pm

1 stop5h 05m

$214

Washington, D.C.St. Louis

IAD - STL

IADSTL

Washington, D.C. Dulles Intl

sáb. 7/26

6:10 am-1:59 pm

1 stop8h 49m

Lambert-St Louis

sáb. 8/2

2:52 pm-11:19 pm

1 stop7h 27m

$221

NewarkKansas City

EWR - MCI

EWRMCI

Newark

sáb. 7/5

10:15 am-8:29 pm

1 stop11h 14m

Kansas City

mar. 7/8

7:50 pm-5:48 am

1 stop8h 58m

$234

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

dom. 7/13

5:59 am-9:52 am

1 stop4h 53m

Lambert-St Louis

sáb. 7/19

10:45 am-11:11 pm

1 stop11h 26m

$236

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

mar. 7/29

6:59 pm-8:57 pm

Nonstop2h 58m

Lambert-St Louis

lun. 8/4

9:16 am-12:44 pm

Nonstop2h 28m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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 junio 12, 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.

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 junio 12, 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
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Allegiant Air
7.3
Good
725 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 29 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 $63 on Spirit Airlines. Other airlines that offer cheap prices include Southwest from $89 and United Airlines 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

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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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$50Average$112FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$156Average$400FlexibilityNo cancel feeOn-time71%
Spirit AirlinesCheapest$164Average$235FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$198Average$456FlexibilityNo cancel feeOn-time69%
DeltaCheapest$200Average$380FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$247Average$398FlexibilityNo cancel feeOn-time63%

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