What is the cheapest airline that flies from Pennsylvania to Missouri?

Spirit Airlines, Delta, and United Airlines are the most popular carriers operating from Pennsylvania to Missouri

What airlines fly to Missouri?

American Airlines, Southwest and Delta are the top three most popular airlines that fly to Missouri from Pennsylvania according to our data. American Airlines is the first choice among our users, with 62% of people opting to fly with this airline when traveling to Missouri. Keep in mind that there are 6 different airlines that fly to Missouri on a routine basis, so you have a few additional options to choose from.

How many flights depart from Pennsylvania to Missouri on average per day?

As of August 2025, 53 flights take off from Pennsylvania and land in Missouri each day. The most common flight departure time for this route is 7:00PM, with 45% of daily flights taking off in the evening.

How long is the flight from Pennsylvania to Missouri?

The flight from Pennsylvania to Missouri depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Pittsburgh (a popular airport in Pennsylvania) to St. Louis (the most popular airport in Missouri), then the flight time is 1h 45m on average. If you fly from Philadelphia (another popular airport in Pennsylvania) to St. Louis, then the average flight time is 2h 20m.

How many flights depart from Pennsylvania to Missouri on average per week?

As of August 2025, there are 372 flights per week flying from Pennsylvania to Missouri. The most common day of the week flights depart is Fri, with 19% of flights taking off on this day.

When did momondo last update prices for flights from Pennsylvania to Missouri?

Prices for flights from Pennsylvania to Missouri refresh daily.

How many operators does momondo search for flights from Pennsylvania to Missouri?

As of August 2025, there are 6 operators available to choose from for flights from Pennsylvania to Missouri.

How old do you have to be to fly from Pennsylvania to Missouri?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Pennsylvania to Missouri.

What documentation or ID do you need to fly to Missouri?

The travel and health documents required for your trip to Missouri can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Missouri. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$59 Cheap Flights from Pennsylvania to Missouri in 2025

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Find the cheapest flights from Pennsylvania to Missouri

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

6:30 am - 10:50 amLGA-STL

5h 20m1 stop

12:05 pm - 12:29 pmSTL-LGA

23h 24m1 stop

$143Spirit Airlines

Find Deal

Thu, Sep 18 - Sun, Sep 21

7:00 am - 1:32 pmPHL-STL

7h 32m1 stop

2:30 pm - 8:49 pmSTL-PHL

5h 19m1 stop

$146Spirit Airlines

Find Deal

Mon, Aug 25 - Thu, Aug 28

6:20 am - 7:56 amLGA-STL

2h 36mnonstop

6:05 am - 9:33 amSTL-LGA

2h 28mnonstop

$197Delta

Find Deal

Thu, Sep 11 - Tue, Sep 16

2:55 pm - 4:48 pmJFK-STL

2h 53mnonstop

4:10 pm - 7:58 pmSTL-JFK

2h 48mnonstop

$197Delta

Find Deal

Wed, Oct 1 - Sat, Oct 4

10:00 pm - 11:57 pmEWR-STL

2h 57mnonstop

11:49 am - 3:12 pmSTL-EWR

2h 23mnonstop

$197United Airlines

Find Deal

Wed, Oct 1 - Mon, Oct 27

7:30 am - 1:12 pmLGA-STL

6h 42m1 stop

2:45 pm - 6:15 pmSTL-LGA

2h 30mnonstop

$202American Airlines

Find Deal

Wed, Aug 27 - Wed, Aug 27

6:15 pm - 10:05 pmLGA-STL

4h 50m1 stop

6:20 am - 9:45 amSTL-LGA

2h 25mnonstop

$207Southwest

Find Deal

Wed, Sep 10 - Sun, Sep 14

10:00 pm - 11:57 pmEWR-STL

2h 57mnonstop

6:43 pm - 12:13 amSTL-EWR

4h 30m1 stop

$207United Airlines

Find Deal

Wed, Oct 1 - Mon, Oct 27

2:11 pm - 9:53 pmLGA-STL

8h 42m1 stop

10:15 am - 1:43 pmSTL-LGA

2h 28mnonstop

$212American Airlines

Find Deal

Wed, Sep 10 - Mon, Sep 15

6:00 pm - 9:30 pmPHL-MCI

4h 30m1 stop

3:55 pm - 8:50 pmMCI-PHL

3h 55m1 stop

$222Southwest

Find Deal

Wed, Nov 12 - Sat, Nov 15

Spirit Airlines flights from Pennsylvania to Missouri

Our best Spirit Airlines deals on Pennsylvania to Missouri flight tickets

Spirit Airlines

Sep 18

LGA6:30 amNew York LaGuardia

5h 20m

1 stop

STL10:50 amLambert-St Louis

Sep 21

STL12:05 pmLambert-St Louis

23h 24m

1 stop

LGA12:29 pmNew York LaGuardia

$143

Find similar

Spirit Airlines

Aug 25

PHL7:00 amPhiladelphia

7h 32m

1 stop

STL1:32 pmLambert-St Louis

Aug 28

STL2:30 pmLambert-St Louis

5h 19m

1 stop

PHL8:49 pmPhiladelphia

$146

Find similar

Spirit Airlines

Aug 22

PHL7:00 amPhiladelphia

7h 32m

1 stop

STL1:32 pmLambert-St Louis

Aug 24

STL2:30 pmLambert-St Louis

5h 19m

1 stop

PHL8:49 pmPhiladelphia

$147

Find similar

Southwest flights from Pennsylvania to Missouri

Our best Southwest deals on Pennsylvania to Missouri flight tickets

Southwest

Sep 10

LGA6:15 pmNew York LaGuardia

4h 50m

1 stop

STL10:05 pmLambert-St Louis

Sep 14

STL6:20 amLambert-St Louis

2h 25m

LGA9:45 amNew York LaGuardia

$207

Find similar

Southwest

Nov 12

PHL6:00 pmPhiladelphia

4h 30m

1 stop

MCI9:30 pmKansas City

Nov 15

MCI3:55 pmKansas City

3h 55m

1 stop

PHL8:50 pmPhiladelphia

$222

Find similar

Southwest

Sep 24

LGA10:25 amNew York LaGuardia

2h 40m

STL12:05 pmLambert-St Louis

Oct 1

STL4:35 pmLambert-St Louis

4h 40m

1 stop

LGA10:15 pmNew York LaGuardia

$227

Find similar

Fly from

Fly to

Route

Depart

Return

Price

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Thu 9/18

6:30 am-10:50 am

1 stop5h 20m

Lambert-St Louis

Sun 9/21

12:05 pm-12:29 pm

1 stop23h 24m

$143

PhiladelphiaSt. Louis

PHL - STL

PHLSTL

Philadelphia

Mon 8/25

7:00 am-1:32 pm

1 stop7h 32m

Lambert-St Louis

Thu 8/28

2:30 pm-8:49 pm

1 stop5h 19m

$146

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Thu 9/11

6:20 am-7:56 am

Nonstop2h 36m

Lambert-St Louis

Tue 9/16

6:05 am-9:33 am

Nonstop2h 28m

$197

New YorkSt. Louis

JFK - STL

JFKSTL

New York John F Kennedy Intl

Wed 10/1

2:55 pm-4:48 pm

Nonstop2h 53m

Lambert-St Louis

Sat 10/4

4:10 pm-7:58 pm

Nonstop2h 48m

$197

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Wed 10/1

10:00 pm-11:57 pm

Nonstop2h 57m

Lambert-St Louis

Mon 10/27

11:49 am-3:12 pm

Nonstop2h 23m

$197

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Wed 8/27

7:30 am-1:12 pm

1 stop6h 42m

Lambert-St Louis

Wed 8/27

2:45 pm-6:15 pm

Nonstop2h 30m

$202

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Wed 9/10

6:15 pm-10:05 pm

1 stop4h 50m

Lambert-St Louis

Sun 9/14

6:20 am-9:45 am

Nonstop2h 25m

$207

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Wed 10/1

10:00 pm-11:57 pm

Nonstop2h 57m

Lambert-St Louis

Mon 10/27

6:43 pm-12:13 am

1 stop4h 30m

$207

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Wed 9/10

2:11 pm-9:53 pm

1 stop8h 42m

Lambert-St Louis

Mon 9/15

10:15 am-1:43 pm

Nonstop2h 28m

$212

PhiladelphiaKansas City

PHL - MCI

PHLMCI

Philadelphia

Wed 11/12

6:00 pm-9:30 pm

1 stop4h 30m

Kansas City

Sat 11/15

3:55 pm-8:50 pm

1 stop3h 55m

$222

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Pennsylvania to Missouri

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Missouri?

In general, August is the cheapest month to fly from Pennsylvania to Missouri. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $248. If you aren’t able to travel to Missouri during the month of August, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $322.

What is the cheapest day to depart on your flight to Missouri?

The cheapest day to depart from Pennsylvania to Missouri is on a Wednesday when prices can be found for as low as $387. Flights from Pennsylvania to Missouri on a Sunday will generally be more expensive and average around $464. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Missouri?

According to our data, the cheapest time of day to fly to Missouri is in the afternoon. momondo users have found flights departing from Pennsylvania to Missouri in the afternoon for as low as $388. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Missouri are more costly in the morning, with an average ticket price of $419. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Pennsylvania to Missouri flight route?

Fly from Philadelphia to Lambert-St Louis for the best Pennsylvania - Missouri flight prices

How far in advance should I book a flight to Missouri?

You are more likely to see cheaper flights to Missouri from Pennsylvania when booking weeks ahead of your departure date. In general, you can expect to find flights to Missouri for around $384 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Missouri from Pennsylvania for as low as $312 on momondo.

What cabin class options are available on Pennsylvania to Missouri flights?

There are 3 cabin classes available to choose from on Pennsylvania to Missouri flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Pennsylvania to Missouri flights?

You could potentially save up to 40% on your flight if you consider stops on a Pennsylvania to Missouri flight.

Cheap Pennsylvania to Missouri flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Pennsylvania to Missouri

Best Price Found	$59
Fastest flight time	2h 22m
Direct flights	Every day
Airports in Missouri	2 airports

The best one-way flight to Missouri from Pennsylvania in the past 72 hours is $59. The best round-trip flight deal from Pennsylvania to Missouri found on momondo in the last 72 hours is $143.

The fastest flight from Pennsylvania to Missouri takes 2h 22m

Direct flights go from Pennsylvania to Missouri every day.

There are 2 airports near Missouri: Kansas City (MCI), Lambert-St Louis (STL)

Search flight deals

When did momondo last update prices for flights from Pennsylvania to Missouri?
Prices for flights from Pennsylvania to Missouri refresh daily.
How many operators does momondo search for flights from Pennsylvania to Missouri?
As of August 2025, there are 6 operators available to choose from for flights from Pennsylvania to Missouri.
How old do you have to be to fly from Pennsylvania to Missouri?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Pennsylvania to Missouri.
What documentation or ID do you need to fly to Missouri?
The travel and health documents required for your trip to Missouri can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Missouri. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Pennsylvania to Missouri?
momondo data reveals that the most frequently booked plane model on the route from Pennsylvania to Missouri is Airbus A319, representing 32.98% of all bookings. The subsequent popular models are Canadair (Bombardier) Regional Jet 900 at 13.71%, Boeing 737 MAX 8 at 11.43%, and Boeing 737-700 Passenger/BBJ1 (winglets) at 9.94%.

Best airlines flying from Pennsylvania to Missouri

Compare and see reviews for airlines that fly from Pennsylvania to Missouri with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $48	Free Cancellation	Rating 5.9 3,239 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $95	Free Cancellation	Rating 6.3 8,049 reviews	Search Spirit Airlines flights
American Airlines	PriceFrom $171	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $198	Free Cancellation	Rating 7.4 8,900 reviews	Search United Airlines flights
Delta	PriceFrom $219	Free Cancellation	Rating 8.0 7,981 reviews	Search Delta flights
Southwest	PriceFrom $243	Free Cancellation	Rating 8.0 4,246 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Pennsylvania to Missouri?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Missouri from Pennsylvania.

Can I find flights from Pennsylvania to Missouri with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Missouri from Pennsylvania with this policy.

How can momondo help me find flights from Pennsylvania to Missouri?

Once all potential Pennsylvania to Missouri flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Pennsylvania to Missouri right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Pennsylvania to Missouri flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Missouri trip

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Find better results for your trip to Missouri

Popular cities in Missouri

Flights to New Yorkfrom $39

Flights to Los Angelesfrom $37

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Flights to Orlandofrom $54

Flights to Las Vegasfrom $35

Flights to San Franciscofrom $49

Flights to Washington, D.C.from $49

Flights to Bostonfrom $77

Flights to Atlantafrom $29

Flights to Dallasfrom $55

Flights to Seattlefrom $93

Cheap flights from Pennsylvania to Missouri from $59

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Pennsylvania to Missouri departing on 9/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

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Find the cheapest flights from Pennsylvania to Missouri

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Spirit Airlines flights from Pennsylvania to Missouri

Our best Spirit Airlines deals on Pennsylvania to Missouri flight tickets

Southwest flights from Pennsylvania to Missouri

Our best Southwest deals on Pennsylvania to Missouri flight tickets

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Use the filters below to find and compare flights from Pennsylvania to Missouri that are best for you.

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How to get the cheapest flight ticket from Pennsylvania to Missouri

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Missouri?

What is the cheapest day to depart on your flight to Missouri?

What is the cheapest time of day to depart on your flight to Missouri?

What is the cheapest Pennsylvania to Missouri flight route?

Fly from Philadelphia to Lambert-St Louis for the best Pennsylvania - Missouri flight prices

How far in advance should I book a flight to Missouri?

What cabin class options are available on Pennsylvania to Missouri flights?

There are 3 cabin classes available to choose from on Pennsylvania to Missouri flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Pennsylvania to Missouri flights?

You could potentially save up to 40% on your flight if you consider stops on a Pennsylvania to Missouri flight.

What is the cheapest airline that flies from Pennsylvania to Missouri?

Spirit Airlines, Delta, and United Airlines are the most popular carriers operating from Pennsylvania to Missouri

What airlines fly to Missouri?

How many flights depart from Pennsylvania to Missouri on average per day?

As of August 2025, 53 flights take off from Pennsylvania and land in Missouri each day. The most common flight departure time for this route is 7:00PM, with 45% of daily flights taking off in the evening.

How many flights depart from Pennsylvania to Missouri on average per week?

As of August 2025, there are 372 flights per week flying from Pennsylvania to Missouri. The most common day of the week flights depart is Fri, with 19% of flights taking off on this day.

How long is the flight from Pennsylvania to Missouri?

Cheap Pennsylvania to Missouri flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Pennsylvania to Missouri

Best Price Found

Fastest flight time

Direct flights

Airports in Missouri

When did momondo last update prices for flights from Pennsylvania to Missouri?

How many operators does momondo search for flights from Pennsylvania to Missouri?

How old do you have to be to fly from Pennsylvania to Missouri?

What documentation or ID do you need to fly to Missouri?

What is the most popular plane model from Pennsylvania to Missouri?

Best airlines flying from Pennsylvania to Missouri

Compare and see reviews for airlines that fly from Pennsylvania to Missouri with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Pennsylvania to Missouri?

Can I find flights from Pennsylvania to Missouri with flexible booking policies on momondo?

How can momondo help me find flights from Pennsylvania to Missouri?

I’m not ready to book a flight from Pennsylvania to Missouri right now. Can momondo alert me if prices change?

An easier way to manage your Missouri trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Missouri

Popular cities in Missouri

Popular flights according to clicks in the last 7 days on momondo