Cheap flights from Missouri to Pennsylvania from $66

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to Pennsylvania departing on 10/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Frontier Logo
4:00 pm - 1:06 amSTL-EWR
8h 06m1 stop
Frontier Logo
5:55 am - 3:04 pmEWR-STL
10h 09m1 stop
$144Frontier
Find Deal
qui, out 2 - dom, out 5
Frontier Logo
4:56 pm - 10:30 amSTL-EWR
16h 34m1 stop
Frontier Logo
11:30 am - 2:29 pmEWR-STL
27h 59m1 stop
$151Frontier
Find Deal
sex, nov 14 - qua, nov 19
American Airlines Logo
6:00 am - 1:26 pmSTL-EWR
6h 26m1 stop
American Airlines Logo
5:25 pm - 11:06 pmEWR-STL
6h 41m1 stop
$173American Airlines
Find Deal
qua, dez 10 - qua, dez 10
American Airlines Logo
6:52 am - 12:44 pmSTL-EWR
4h 52m1 stop
American Airlines Logo
7:07 am - 1:29 pmEWR-STL
7h 22m1 stop
$179American Airlines
Find Deal
qua, nov 19 - sáb, dez 6
United Airlines Logo
11:48 am - 3:10 pmSTL-EWR
2h 22mnonstop
United Airlines Logo
9:00 am - 10:52 amEWR-STL
2h 52mnonstop
$197United Airlines
Find Deal
sex, nov 14 - qua, nov 19
United Airlines Logo
6:43 pm - 12:13 amSTL-EWR
4h 30m1 stop
United Airlines Logo
9:00 am - 10:52 amEWR-STL
2h 52mnonstop
$207United Airlines
Find Deal
sex, nov 14 - qua, nov 19
Southwest Logo
12:50 pm - 4:10 pmSTL-LGA
2h 20mnonstop
Southwest Logo
6:05 am - 2:15 pmLGA-STL
9h 10m1 stop
$213Southwest
Find Deal
seg, nov 3 - qui, nov 6
Southwest Logo
6:05 pm - 11:15 pmSTL-LGA
4h 10m1 stop
Southwest Logo
10:25 am - 4:55 pmLGA-STL
7h 30m1 stop
$217Southwest
Find Deal
ter, nov 4 - sáb, nov 8
Delta Logo
5:40 pm - 11:33 pmMCI-DCA
4h 53m1 stop
Delta Logo
9:00 am - 2:00 pmDCA-MCI
6h 00m1 stop
$217Delta
Find Deal
seg, mar 9 - qua, mar 11
Delta Logo
10:45 am - 6:45 pmSTL-JFK
7h 00m1 stop
Delta Logo
12:59 pm - 5:09 pmJFK-STL
5h 10m1 stop
$217Delta
Find Deal
sáb, nov 8 - ter, nov 11

Frontier flights from Missouri to Pennsylvania

Our best Frontier deals on Missouri to Pennsylvania flight tickets
Frontier
Oct 2
STL4:00 pmLambert-St Louis
8h 06m
1 stop
EWR1:06 amNewark
Oct 5
EWR5:55 amNewark
10h 09m
1 stop
STL3:04 pmLambert-St Louis
Frontier
Nov 14
STL4:56 pmLambert-St Louis
16h 34m
1 stop
EWR10:30 amNewark
Nov 19
EWR11:30 amNewark
27h 59m
1 stop
STL2:29 pmLambert-St Louis
Frontier
Oct 2
STL4:00 pmLambert-St Louis
8h 06m
1 stop
EWR1:06 amNewark
Oct 12
EWR5:54 amNewark
5h 43m
1 stop
STL10:37 amLambert-St Louis

American Airlines flights from Missouri to Pennsylvania

Our best American Airlines deals on Missouri to Pennsylvania flight tickets
American Airlines
Dec 10
STL6:00 amLambert-St Louis
6h 26m
1 stop
EWR1:26 pmNewark
Dec 10
EWR5:25 pmNewark
6h 41m
1 stop
STL11:06 pmLambert-St Louis
American Airlines
Nov 19
STL6:52 amLambert-St Louis
4h 52m
1 stop
EWR12:44 pmNewark
Dec 6
EWR7:07 amNewark
7h 22m
1 stop
STL1:29 pmLambert-St Louis
American Airlines
Oct 11
STL4:25 pmLambert-St Louis
5h 19m
1 stop
EWR10:44 pmNewark
Oct 18
EWR6:59 amNewark
7h 45m
1 stop
STL1:44 pmLambert-St Louis

momondo 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, momondo users made 832,500 searches. Data last updated setembro 19, 2025.
Use the filters below to find and compare flights from Missouri to Pennsylvania that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

qui 10/2

4:00 pm-1:06 am

1 stop8h 06m

Newark

dom 10/5

5:55 am-3:04 pm

1 stop10h 09m

$144

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

sex 11/14

4:56 pm-10:30 am

1 stop16h 34m

Newark

qua 11/19

11:30 am-2:29 pm

1 stop27h 59m

$151

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

qua 12/10

6:00 am-1:26 pm

1 stop6h 26m

Newark

qua 12/10

5:25 pm-11:06 pm

1 stop6h 41m

$173

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

qua 11/19

6:52 am-12:44 pm

1 stop4h 52m

Newark

sáb 12/6

7:07 am-1:29 pm

1 stop7h 22m

$179

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

sex 11/14

11:48 am-3:10 pm

Nonstop2h 22m

Newark

qua 11/19

9:00 am-10:52 am

Nonstop2h 52m

$197

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

sex 11/14

6:43 pm-12:13 am

1 stop4h 30m

Newark

qua 11/19

9:00 am-10:52 am

Nonstop2h 52m

$207

St. LouisNew York

STL - LGA

STLLGA

Lambert-St Louis

seg 11/3

12:50 pm-4:10 pm

Nonstop2h 20m

New York LaGuardia

qui 11/6

6:05 am-2:15 pm

1 stop9h 10m

$213

St. LouisNew York

STL - LGA

STLLGA

Lambert-St Louis

ter 11/4

6:05 pm-11:15 pm

1 stop4h 10m

New York LaGuardia

sáb 11/8

10:25 am-4:55 pm

1 stop7h 30m

$217

Kansas CityWashington, D.C.

MCI - DCA

MCIDCA

Kansas City

seg 3/9

5:40 pm-11:33 pm

1 stop4h 53m

Washington, D.C. Reagan-National

qua 3/11

9:00 am-2:00 pm

1 stop6h 00m

$217

St. LouisNew York

STL - JFK

STLJFK

Lambert-St Louis

sáb 11/8

10:45 am-6:45 pm

1 stop7h 00m

New York John F Kennedy Intl

ter 11/11

12:59 pm-5:09 pm

1 stop5h 10m

$217

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Pennsylvania from

How to get the cheapest flight ticket from Missouri to Pennsylvania

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 Pennsylvania?

The month of August is, on average, the cheapest month to fly to Pennsylvania from Missouri, with most prices found around $277. If you don’t want to visit Pennsylvania in August, then you should wait until September to fly from Missouri, when ticket prices are also cheap, with an average price of $353.

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

The cheapest day to depart on your flight to Pennsylvania is on a Thursday when prices can be found for as low as $726. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $992. These prices are subject to change though, so be sure to set up a Price Alert for flights to Pennsylvania.

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

Our most recent data shows that the best time of day to fly to Pennsylvania is in the evening. Flights from Missouri to Pennsylvania during this time can be as low as $418. In contrast, the most expensive time of day to depart to Pennsylvania is at noon when prices are around $1,169.

What is the cheapest Missouri to Pennsylvania flight route?

Fly from Kansas City to Philadelphia for the best Missouri - Pennsylvania flight prices

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

You are more likely to see cheaper flights to Pennsylvania from Missouri when booking weeks ahead of your departure date. In general, you can expect to find flights to Pennsylvania for around $392 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Pennsylvania from Missouri for as low as $328 on momondo.

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

There are 4 cabin classes available to choose from on Missouri to Pennsylvania 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 Missouri to Pennsylvania flights?

You could potentially save up to 28% on your flight if you consider stops on a Missouri to Pennsylvania flight.

Cheap Missouri to Pennsylvania flight deals and tips

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

Best Price Found

$211

Fastest flight time

1h 55m

Direct flights

Every day

Airports in Pennsylvania

2 airports
The best one-way flight to Pennsylvania from Missouri in the past 72 hours is $211. The best round-trip flight deal from Missouri to Pennsylvania found on momondo in the last 72 hours is $271.
The fastest flight from Missouri to Pennsylvania takes 1h 55m
Direct flights go from Missouri to Pennsylvania every day.
There are 2 airports near Pennsylvania: Washington, D.C. Reagan-National (DCA), Washington, D.C. Dulles Intl (IAD)
  • When did momondo last update prices for flights from Missouri to Pennsylvania?

    Prices for flights from Missouri to Pennsylvania refresh daily.

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

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

    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 Missouri to Pennsylvania.

  • What documentation or ID do you need to fly to Pennsylvania?

    The required travel and health documents for your Pennsylvania trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Pennsylvania. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Best airlines flying from Missouri to Pennsylvania

Compare and see reviews for airlines that fly from Missouri to Pennsylvania with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $106Free CancellationRating
6.3
8,030 reviews
Search Spirit Airlines flights
FrontierPriceFrom $119Free CancellationRating
5.8
3,171 reviews
Search Frontier flights
United AirlinesPriceFrom $198Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
American AirlinesPriceFrom $204Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $211Free CancellationRating
7.9
7,964 reviews
Search Delta flights
SouthwestPriceFrom $253Free CancellationRating
8.0
4,242 reviews
Search Southwest flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Missouri to Pennsylvania for you.

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

Yes. All flights to Pennsylvania from Missouri on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Missouri to Pennsylvania 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 Missouri to Pennsylvania right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Pennsylvania from Missouri. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Pennsylvania trip

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1 adult
dom 10/19
dom 10/26

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