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Cheap flights from Philadelphia to Missouri 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 Philadelphia to Missouri departing on 8/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Philadelphia to Missouri

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:30 am - 5:22 pm
PHL
-
STL
9h 52m
1 stop
Frontier Logo
6:17 pm - 7:15 am
STL
-
PHL
11h 58m
1 stop
$132Frontier
Mon, Aug 31 - Mon, Sep 7
Frontier Logo
8:41 am - 1:10 pm
PHL
-
STL
5h 29m
1 stop
Frontier Logo
2:29 pm - 11:18 pm
STL
-
PHL
7h 49m
1 stop
$140Frontier
Mon, Sep 28 - Mon, Oct 5
Multiple Airlines Logo
8:41 am - 1:10 pm
PHL
-
STL
5h 29m
1 stop
Multiple Airlines Logo
8:10 pm - 5:20 pm
STL
-
PHL
20h 10m
2 stops
$243Multiple Airlines
Wed, Sep 23 - Sat, Sep 26
Multiple Airlines Logo
4:45 pm - 1:10 pm
PHL
-
STL
21h 25m
1 stop
Multiple Airlines Logo
8:10 pm - 5:20 pm
STL
-
PHL
20h 10m
2 stops
$245Multiple Airlines
Tue, Sep 8 - Sat, Sep 12
American Airlines Logo
8:56 am - 10:41 am
PHL
-
STL
2h 45mnonstop
American Airlines Logo
5:44 pm - 9:04 pm
STL
-
PHL
2h 20mnonstop
$277American Airlines
Sat, Oct 17 - Mon, Oct 19
American Airlines Logo
9:18 am - 10:52 am
PHL
-
STL
2h 34mnonstop
American Airlines Logo
6:30 am - 9:50 am
STL
-
PHL
2h 20mnonstop
$277American Airlines
Wed, Aug 26 - Tue, Sep 22
Southwest Logo
6:20 am - 7:35 am
PHL
-
STL
2h 15mnonstop
Southwest Logo
7:05 pm - 10:20 pm
STL
-
PHL
2h 15mnonstop
$277Southwest
Mon, Sep 14 - Mon, Sep 14
Southwest Logo
6:35 pm - 8:00 pm
PHL
-
STL
2h 25mnonstop
Southwest Logo
6:40 pm - 9:50 pm
STL
-
PHL
2h 10mnonstop
$277Southwest
Thu, Aug 27 - Wed, Sep 2
United Airlines Logo
6:56 pm - 10:55 pm
PHL
-
COU
4h 59m
1 stop
United Airlines Logo
10:55 am - 5:54 pm
COU
-
PHL
5h 59m
1 stop
$318United Airlines
Tue, Sep 1 - Sat, Sep 5
United Airlines Logo
8:20 am - 8:59 pm
PHL
-
COU
13h 39m
2 stops
United Airlines Logo
6:15 am - 12:23 pm
COU
-
PHL
5h 08m
1 stop
$324United Airlines
Tue, Sep 1 - Sat, Sep 5

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Frontier flights from Philadelphia to Missouri

Our best Frontier deals on Philadelphia to Missouri flight tickets
Frontier
Aug 31
PHL8:30 amPhiladelphia
9h 52m
1 stop
STL5:22 pmLambert-St Louis
Sep 7
STL6:17 pmLambert-St Louis
11h 58m
1 stop
PHL7:15 amPhiladelphia
$132
Frontier
Sep 28
PHL8:41 amPhiladelphia
5h 29m
1 stop
STL1:10 pmLambert-St Louis
Oct 5
STL2:29 pmLambert-St Louis
7h 49m
1 stop
PHL11:18 pmPhiladelphia
$140
Frontier
Sep 2
PHL4:45 pmPhiladelphia
25h 37m
1 stop
STL5:22 pmLambert-St Louis
Sep 7
STL6:17 pmLambert-St Louis
11h 58m
1 stop
PHL7:15 amPhiladelphia
$142

United Airlines flights from Philadelphia to Missouri

Our best United Airlines deals on Philadelphia to Missouri flight tickets
United Airlines
Sep 1
PHL6:56 pmPhiladelphia
4h 59m
1 stop
COU10:55 pmColumbia Regional
Sep 5
COU10:55 amColumbia Regional
5h 59m
1 stop
PHL5:54 pmPhiladelphia
$318
United Airlines
Sep 1
PHL8:20 amPhiladelphia
13h 39m
2 stops
COU8:59 pmColumbia Regional
Sep 5
COU6:15 amColumbia Regional
5h 08m
1 stop
PHL12:23 pmPhiladelphia
$324
United Airlines
Sep 1
PHL8:20 amPhiladelphia
13h 39m
2 stops
COU8:59 pmColumbia Regional
Sep 5
COU6:15 amColumbia Regional
7h 06m
2 stops
PHL2:21 pmPhiladelphia
$329

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia 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, momondo users made 832,500 searches. Data last updated August 4, 2026.
Use the filters below to find and compare flights from Philadelphia to Missouri that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaSt. Louis

PHL - STL

PHLSTL

Philadelphia

Mon 8/31

8:30 am-5:22 pm

1 stop9h 52m

Lambert-St Louis

Mon 9/7

6:17 pm-7:15 am

1 stop11h 58m

$132

PhiladelphiaSt. Louis

PHL - STL

PHLSTL

Philadelphia

Mon 9/28

8:41 am-1:10 pm

1 stop5h 29m

Lambert-St Louis

Mon 10/5

2:29 pm-11:18 pm

1 stop7h 49m

$140

PhiladelphiaSt. Louis

PHL - STL

PHLSTL

Philadelphia

Wed 9/23

8:41 am-1:10 pm

1 stop5h 29m

Lambert-St Louis

Sat 9/26

8:10 pm-5:20 pm

2 stops20h 10m

$243

PhiladelphiaSt. Louis

PHL - STL

PHLSTL

Philadelphia

Tue 9/8

4:45 pm-1:10 pm

1 stop21h 25m

Lambert-St Louis

Sat 9/12

8:10 pm-5:20 pm

2 stops20h 10m

$245

PhiladelphiaSt. Louis

PHL - STL

PHLSTL

Philadelphia

Sat 10/17

8:56 am-10:41 am

Nonstop2h 45m

Lambert-St Louis

Mon 10/19

5:44 pm-9:04 pm

Nonstop2h 20m

$277

PhiladelphiaSt. Louis

PHL - STL

PHLSTL

Philadelphia

Wed 8/26

9:18 am-10:52 am

Nonstop2h 34m

Lambert-St Louis

Tue 9/22

6:30 am-9:50 am

Nonstop2h 20m

$277
Quickest round-trip

PhiladelphiaSt. Louis

PHL - STL

PHLSTL

Philadelphia

Mon 9/14

6:20 am-7:35 am

Nonstop2h 15m

Lambert-St Louis

Mon 9/14

7:05 pm-10:20 pm

Nonstop2h 15m

$277

PhiladelphiaSt. Louis

PHL - STL

PHLSTL

Philadelphia

Thu 8/27

6:35 pm-8:00 pm

Nonstop2h 25m

Lambert-St Louis

Wed 9/2

6:40 pm-9:50 pm

Nonstop2h 10m

$277

PhiladelphiaColumbia

PHL - COU

PHLCOU

Philadelphia

Tue 9/1

6:56 pm-10:55 pm

1 stop4h 59m

Columbia Regional

Sat 9/5

10:55 am-5:54 pm

1 stop5h 59m

$318

PhiladelphiaColumbia

PHL - COU

PHLCOU

Philadelphia

Tue 9/1

8:20 am-8:59 pm

2 stops13h 39m

Columbia Regional

Sat 9/5

6:15 am-12:23 pm

1 stop5h 08m

$324

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 Missouri from

How to get the cheapest flight ticket from Philadelphia 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?

In general, October is the cheapest month to fly from Philadelphia to Missouri. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $381. If you aren’t able to travel to Missouri during the month of October, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $390.

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

The cheapest day to depart from Philadelphia to Missouri is on a Wednesday when prices can be found for as low as $379. Flights from Philadelphia to Missouri on a Sunday will generally be more expensive and average around $493. 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 Philadelphia to Missouri in the afternoon for as low as $397. 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 $451. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Philadelphia to Missouri flight route?

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

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

You are more likely to see cheaper flights to Missouri from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to Missouri for around $412 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Missouri from Philadelphia for as low as $324 on momondo.

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

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

Cheap Philadelphia to Missouri flight deals and tips

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

Best Price Found

$215

Fastest flight time

2h 15m

Direct flights

Every day

Airports in Missouri

55 airports
The best one-way flight to Missouri from Philadelphia in the past 72 hours is $215. The best round-trip flight deal from Philadelphia to Missouri found on momondo in the last 72 hours is $354.
The fastest flight from Philadelphia to Missouri takes 2h 15m
Direct flights go from Philadelphia to Missouri every day.
There are 55 airports in Missouri. From Philadelphia there are direct flights to Kansas City (MCI), Lambert-St Louis (STL).
Search flight deals

Frequently asked questions about flying from Philadelphia to Missouri

  • When did momondo last update prices for flights from Philadelphia Airport to Missouri?

    Prices for flights from Philadelphia Airport to Missouri are updated daily.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Philadelphia Airport to Missouri.

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

    The necessary travel and health documents for your Missouri trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from Philadelphia to Missouri

Compare and see reviews for airlines that fly from Philadelphia to Missouri with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $144Free CancellationRating
5.6
2,738 reviews
Search Frontier flights
American AirlinesPriceFrom $224Free CancellationRating
7.1
11,848 reviews
Search American Airlines flights
SouthwestPriceFrom $253Free CancellationRating
8.0
4,222 reviews
Search Southwest flights
United AirlinesPriceFrom $273Free CancellationRating
7.4
10,059 reviews
Search United Airlines flights
DeltaPriceFrom $309Free CancellationRating
7.8
8,481 reviews
Search Delta flights
JetBluePriceFrom $358Free CancellationRating
7.2
3,025 reviews
Search JetBlue flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Philadelphia to Missouri. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to Missouri from Philadelphia which offer a flexible booking policy as well as other useful filters and features.

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

momondo helps you find the best flight between Philadelphia and Missouri by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Missouri from Philadelphia are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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