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Cheap flights from Pennsylvania to St. Louis (STL) from $26

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 5/22. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
PHL — STL
May 9 — May 161
From?
To?
Thu 5/9
Thu 5/16
1 adult, Economy
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How far in advance should I book a flight from Pennsylvania to St. Louis?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 61 days in advance, which can save you up to 232% on flights from Pennsylvania to St. Louis compared to booking the week you need them. Waiting 61 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $476. For sooner than that we have options available in the next 3 days from $549.

What is the cheapest month to fly from Pennsylvania to St. Louis?

January is one of the best times of the year to fly to St. Louis from Pennsylvania. Prices for January average $359 per person but you can even find prices for as low as $173. The most expensive prices can be found in the month of November. Opting for a January flight can save you 18% on your journey compared to booking in November

When is the cheapest time to fly from Pennsylvania to St. Louis (PA - STL)?

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

Cheap Frontier flights from Pennsylvania to St. Louis

Explore cheap flight options specifically provided by Frontier for the route between Pennsylvania and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,864,334 searches. Data last updated May 4, 2024.
Take a look at some of the lowest-priced Frontier flights heading from Pennsylvania to St. Louis. Be sure to come back soon if the deals available don't appeal to you at this time.
Wed 5/226:30 amPHL - STL
Nonstop2h 27mFrontier
Sat 5/258:57 amSTL - PHL
Nonstop2h 14mFrontier
Deal found 5/2$58
Sat 6/2912:51 pmPHL - STL
Nonstop2h 27mFrontier
Fri 7/511:16 amSTL - PHL
Nonstop2h 13mFrontier
Deal found 5/3$68
Wed 5/226:30 amPHL - STL
Nonstop2h 27mFrontier
Mon 5/275:57 pmSTL - PHL
Nonstop2h 14mFrontier
Deal found 5/3$77
Wed 5/296:30 amPHL - STL
Nonstop2h 27mFrontier
Sat 6/18:57 amSTL - PHL
Nonstop2h 14mFrontier
Deal found 5/2$78
Sat 5/256:30 amPHL - STL
Nonstop2h 27mFrontier
Mon 5/275:57 pmSTL - PHL
Nonstop2h 14mFrontier
Deal found 5/3$83
Sat 5/256:30 amPHL - STL
Nonstop2h 27mFrontier
Mon 5/275:57 pmSTL - PHL
Nonstop2h 14mFrontier
Deal found 5/3$84
Wed 5/296:30 amPHL - STL
Nonstop2h 27mFrontier
Fri 5/311:10 pmSTL - PHL
Nonstop2h 14mFrontier
Deal found 5/3$93
Wed 5/229:30 amPHL - STL
1 stop11h 40mFrontier
Sat 5/258:57 amSTL - PHL
Nonstop2h 14mFrontier
Deal found 5/2$104
Sat 5/1811:02 pmPHL - STL
1 stop9h 06mFrontier
Wed 5/228:47 amSTL - PHL
Nonstop2h 14mFrontier
Deal found 5/3$108

Cheap Spirit Airlines flights from Pennsylvania to St. Louis

Explore cheap flight options specifically provided by Spirit Airlines for the route between Pennsylvania and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,864,334 searches. Data last updated May 4, 2024.
Browse through some of the cheapest Spirit Airlines flights traveling from Pennsylvania to St. Louis. Deals frequently update to provide users with more options.
Mon 5/207:57 pmPHL - STL
1 stop14h 42mSpirit Airlines
Thu 5/237:30 pmSTL - PHL
1 stop16h 55mSpirit Airlines
Deal found 5/3$149
Wed 5/225:24 pmPHL - STL
1 stop25h 05mSpirit Airlines
Sat 5/255:15 pmSTL - PHL
1 stop14h 45mSpirit Airlines
Deal found 5/2$159
Mon 6/310:25 pmPIT - STL
1 stop12h 14mSpirit Airlines
Sat 6/86:22 pmSTL - PIT
1 stop6h 12mSpirit Airlines
Deal found 5/2$160
Wed 5/295:24 pmPHL - STL
1 stop25h 05mSpirit Airlines
Sun 6/27:30 pmSTL - PHL
1 stop21h 51mSpirit Airlines
Deal found 5/3$166
Sat 5/115:10 amPHL - STL
1 stop12h 15mSpirit Airlines
Wed 5/1511:36 amSTL - PHL
2 stops23h 49mSpirit Airlines
Deal found 5/3$167
Fri 5/179:17 pmPIT - STL
1 stop14h 11mSpirit Airlines
Sun 5/197:30 pmSTL - PIT
1 stop28h 29mSpirit Airlines
Deal found 5/3$168
Sat 5/1812:25 pmPHL - STL
2 stops30h 04mSpirit Airlines
Tue 5/2110:34 amSTL - PHL
1 stop13h 08mSpirit Airlines
Deal found 5/3$172
Sat 5/115:10 amPHL - STL
1 stop12h 15mSpirit Airlines
Wed 5/1511:36 amSTL - PHL
3 stops29h 21mSpirit Airlines
Deal found 5/3$175
Tue 5/218:00 amPHL - STL
2 stops27h 46mSpirit Airlines
Sat 5/255:15 pmSTL - PHL
1 stop14h 45mSpirit Airlines
Deal found 5/3$178

Cheap Pennsylvania to St. Louis flights in May & June 2024

Find cheap flight options from Pennsylvania to St. Louis specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,864,334 searches. Prices were last updated on May 4, 2024.
Check out some of the best flight deals from Pennsylvania to St. Louis in 2024. Check back regularly for other flight deals.
Sun 5/195:10 amPHL - STL
1 stop13h 19mMultiple Airlines
Wed 5/228:47 amSTL - PHL
Nonstop2h 14mMultiple Airlines
Deal found 5/3$143
Fri 5/179:17 pmPIT - STL
1 stop14h 11mMultiple Airlines
Sat 5/188:04 pmSTL - PIT
1 stop22h 54mMultiple Airlines
Deal found 5/3$144
Wed 5/294:17 pmPHL - STL
1 stop26h 12mMultiple Airlines
Fri 5/311:10 pmSTL - PHL
Nonstop2h 14mMultiple Airlines
Deal found 5/3$144
Tue 6/46:31 amPHL - STL
1 stop8h 06mMultiple Airlines
Mon 6/1010:36 pmSTL - PHL
Nonstop2h 12mMultiple Airlines
Deal found 5/4$146
Wed 6/58:19 pmPHL - STL
Nonstop2h 27mMultiple Airlines
Sun 6/96:05 pmSTL - PHL
1 stop16h 18mMultiple Airlines
Deal found 5/3$148
Mon 5/207:57 pmPHL - STL
1 stop14h 42mSpirit Airlines
Thu 5/237:30 pmSTL - PHL
1 stop16h 55mSpirit Airlines
Deal found 5/3$149
Mon 5/1312:06 pmPHL - STL
1 stop9h 05mFrontier
Mon 5/209:26 pmSTL - PHL
1 stop11h 49mFrontier
Deal found 5/3$150
Fri 5/178:27 pmPHL - STL
1 stop13h 58mFrontier
Mon 5/209:26 pmSTL - PHL
1 stop23h 15mFrontier
Deal found 5/2$153
Fri 5/178:27 pmPHL - STL
1 stop13h 58mFrontier
Tue 5/2110:44 pmSTL - PHL
1 stop12h 26mFrontier
Deal found 5/3$154

Pennsylvania to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Pennsylvania and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,864,334 searches. Data last updated May 4, 2024.
Check out some of the best flight deals from Pennsylvania to St. Louis in 2024. Check back regularly for other flight deals.
Sun 5/195:10 amPHL - STL
1 stop13h 19mMultiple Airlines
Wed 5/228:47 amSTL - PHL
Nonstop2h 14mMultiple Airlines
Deal found 5/3$143
Fri 5/179:17 pmPIT - STL
1 stop14h 11mMultiple Airlines
Sat 5/188:04 pmSTL - PIT
1 stop22h 54mMultiple Airlines
Deal found 5/3$144
Wed 5/294:17 pmPHL - STL
1 stop26h 12mMultiple Airlines
Fri 5/311:10 pmSTL - PHL
Nonstop2h 14mMultiple Airlines
Deal found 5/3$144
Tue 6/46:31 amPHL - STL
1 stop8h 06mMultiple Airlines
Mon 6/1010:36 pmSTL - PHL
Nonstop2h 12mMultiple Airlines
Deal found 5/4$146
Wed 6/58:19 pmPHL - STL
Nonstop2h 27mMultiple Airlines
Sun 6/96:05 pmSTL - PHL
1 stop16h 18mMultiple Airlines
Deal found 5/3$148
Mon 5/207:57 pmPHL - STL
1 stop14h 42mSpirit Airlines
Thu 5/237:30 pmSTL - PHL
1 stop16h 55mSpirit Airlines
Deal found 5/3$149
Mon 5/1312:06 pmPHL - STL
1 stop9h 05mFrontier
Mon 5/209:26 pmSTL - PHL
1 stop11h 49mFrontier
Deal found 5/3$150
Fri 5/178:27 pmPHL - STL
1 stop13h 58mFrontier
Mon 5/209:26 pmSTL - PHL
1 stop23h 15mFrontier
Deal found 5/2$153
Fri 5/178:27 pmPHL - STL
1 stop13h 58mFrontier
Tue 5/2110:44 pmSTL - PHL
1 stop12h 26mFrontier
Deal found 5/3$154

Non-stop flights to St. Louis from Pennsylvania

Discover non-stop flight options from Pennsylvania to St. Louis. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,864,334 searches. Data last updated May 4, 2024.
For a quicker trip, book one of these direct flights from Pennsylvania to St. Louis. Search for alternative flights from Pennsylvania to St. Louis by utilizing the search form above.
Wed 5/226:30 amPHL - STL
Nonstop2h 27mFrontier
Sat 5/258:57 amSTL - PHL
Nonstop2h 14mFrontier
Deal found 5/2$58
Fri 5/3110:53 amPHL - STL
Nonstop2h 27mFrontier
Sat 6/83:08 pmSTL - PHL
Nonstop2h 12mFrontier
Deal found 5/3$68
Wed 5/226:30 amPHL - STL
Nonstop2h 27mFrontier
Mon 5/275:57 pmSTL - PHL
Nonstop2h 14mFrontier
Deal found 5/3$77
Wed 5/296:30 amPHL - STL
Nonstop2h 27mFrontier
Sat 6/18:57 amSTL - PHL
Nonstop2h 14mFrontier
Deal found 5/2$78
Sat 5/256:30 amPHL - STL
Nonstop2h 27mFrontier
Mon 5/275:57 pmSTL - PHL
Nonstop2h 14mFrontier
Deal found 5/3$83
Sat 5/256:30 amPHL - STL
Nonstop2h 27mFrontier
Mon 5/275:57 pmSTL - PHL
Nonstop2h 14mFrontier
Deal found 5/3$84
Wed 5/296:30 amPHL - STL
Nonstop2h 27mFrontier
Fri 5/311:10 pmSTL - PHL
Nonstop2h 14mFrontier
Deal found 5/3$93
Sat 6/2212:51 pmPHL - STL
Nonstop2h 27mFrontier
Fri 6/2810:36 pmSTL - PHL
Nonstop2h 12mFrontier
Deal found 5/3$123
Fri 6/288:19 pmPHL - STL
Nonstop2h 27mFrontier
Mon 7/811:21 amSTL - PHL
Nonstop2h 13mFrontier
Deal found 5/3$133

Pennsylvania to St. Louis flights leaving soon

Find last-minute flight options from Pennsylvania to St. Louis for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,864,334 searches. Data last updated May 4, 2024.
Consider one of these great deals we found on last-minute flights from Pennsylvania to St. Louis. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
Sat 5/115:10 amPHL - STL
1 stop12h 15mMultiple Airlines
Wed 5/158:04 pmSTL - PHL
1 stop8h 20mMultiple Airlines
Deal found 5/3$119
Mon 5/1312:06 pmPHL - STL
1 stop9h 05mFrontier
Mon 5/209:26 pmSTL - PHL
1 stop11h 49mFrontier
Deal found 5/3$150
Tue 5/145:30 pmPHL - STL
1 stop24h 25mFrontier
Thu 5/1611:06 pmSTL - PHL
1 stop29h 28mFrontier
Deal found 5/3$160
Sat 5/115:10 amPHL - STL
1 stop12h 15mSpirit Airlines
Wed 5/1511:36 amSTL - PHL
2 stops23h 49mSpirit Airlines
Deal found 5/3$167
Sat 5/115:10 amPHL - STL
1 stop12h 15mSpirit Airlines
Wed 5/1511:36 amSTL - PHL
3 stops29h 21mSpirit Airlines
Deal found 5/3$175
Fri 5/108:50 pmPHL - STL
1 stop13h 57mFrontier
Sat 5/118:04 pmSTL - PHL
1 stop8h 41mFrontier
Deal found 5/3$213
Sat 5/1110:25 pmPIT - STL
1 stop20h 04mSpirit Airlines
Sat 6/15:15 pmSTL - PIT
1 stop27h 09mSpirit Airlines
Deal found 5/2$226
Tue 5/147:58 amPHL - STL
2 stops8h 32mMultiple Airlines
Thu 5/167:45 amSTL - PHL
2 stops9h 55mMultiple Airlines
Deal found 5/3$243
Fri 5/101:26 pmPHL - STL
2 stops22h 02mSpirit Airlines
Mon 5/134:05 pmSTL - PHL
3 stops39h 55mSpirit Airlines
Deal found 5/3$260

One-way flights to St. Louis from Pennsylvania

Search for one-way flight options from Pennsylvania to St. Louis. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,864,334 searches. Data last updated May 4, 2024.
Users traveling one-way from Pennsylvania to St. Louis can select one of these great deals. For those needing a return trip from Pennsylvania, there is a search form available above.
Wed 5/226:30 amPHL - STL
Nonstop2h 27mFrontier
Deal found 5/2$26
Wed 6/58:19 pmPHL - STL
Nonstop2h 27mFrontier
Deal found 5/3$29
Sat 8/249:17 amPHL - STL
Nonstop2h 30mFrontier
Deal found 5/3$30
Mon 5/207:57 pmPHL - STL
1 stop14h 42mSpirit Airlines
Deal found 5/3$49
Mon 6/108:19 pmPHL - STL
Nonstop2h 27mFrontier
Deal found 5/2$54
Mon 5/206:02 pmPHL - STL
2 stops16h 37mSpirit Airlines
Deal found 5/3$57
Mon 6/37:57 pmPHL - STL
1 stop14h 42mSpirit Airlines
Deal found 5/3$69
Thu 5/305:10 amPHL - STL
1 stop13h 19mSpirit Airlines
Deal found 5/3$70
Mon 6/35:01 amPHL - STL
Nonstop2h 27mFrontier
Deal found 5/3$74

Find flights from Pennsylvania to St. Louis within your budget

Customize your flight search to find flights from Pennsylvania to St. Louis 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 2,864,334 searches. Data last updated May 4, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$58 - $198

Route

Depart

Return

Price

PhiladelphiaLambert-St Louis

PHL - STL

PHLSTL

Philadelphia

Wed 5/22

Nonstop2h 27m

Lambert-St Louis

Sat 5/25

Nonstop2h 14m

$58

PhiladelphiaLambert-St Louis

PHL - STL

PHLSTL

Philadelphia

Sat 6/29

Nonstop2h 27m

Lambert-St Louis

Fri 7/5

Nonstop2h 13m

$68

PhiladelphiaLambert-St Louis

PHL - STL

PHLSTL

Philadelphia

Wed 5/22

Nonstop2h 27m

Lambert-St Louis

Mon 5/27

Nonstop2h 14m

$77

PhiladelphiaLambert-St Louis

PHL - STL

PHLSTL

Philadelphia

Wed 5/29

Nonstop2h 27m

Lambert-St Louis

Sat 6/1

Nonstop2h 14m

$78

PhiladelphiaLambert-St Louis

PHL - STL

PHLSTL

Philadelphia

Wed 5/29

1 stop26h 12m

Lambert-St Louis

Wed 6/26

Nonstop2h 12m

$109

PhiladelphiaLambert-St Louis

PHL - STL

PHLSTL

Philadelphia

Mon 5/20

1 stop14h 42m

Lambert-St Louis

Thu 5/23

1 stop16h 55m

$149

PhiladelphiaLambert-St Louis

PHL - STL

PHLSTL

Philadelphia

Wed 6/19

1 stop10h 53m

Lambert-St Louis

Sun 6/23

1 stop16h 12m

$150

PhiladelphiaLambert-St Louis

PHL - STL

PHLSTL

Philadelphia

Sat 6/22

Nonstop2h 36m

Lambert-St Louis

Tue 6/25

Nonstop2h 17m

$179

HarrisburgLambert-St Louis

MDT - STL

MDTSTL

Harrisburg

Wed 9/4

1 stop5h 47m

Lambert-St Louis

Sat 9/7

1 stop5h 37m

$198

Flights are sorted by cheapest first

Deals found on 5/2

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated May 4, 2024.
To help decide which airline to fly from Pennsylvania to St. Louis, see what other customers have to say about Frontier, Spirit Airlines and Sun Country Air. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,137 reviews
Check prices

Crew

8.6

Comfort

7.9

Boarding

8.2

Overall

8.1

Food

7.3

Entertainment

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Alaska Airlines
8.1
Very good
9,137 reviews
Alaska Airlines
8.1
Very good
9,137 reviews
Check prices

Crew

8.6

Comfort

7.9

Boarding

8.2

Overall

8.1

Food

7.3

Entertainment

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Delta
8.1
Very good
10,838 reviews
Alaska Airlines
8.1
Very good
9,137 reviews
Check prices

Crew

8.6

Comfort

7.9

Boarding

8.2

Overall

8.1

Food

7.3

Entertainment

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

United Airlines
7.4
Good
11,125 reviews
Alaska Airlines
8.1
Very good
9,137 reviews
Check prices

Crew

8.6

Comfort

7.9

Boarding

8.2

Overall

8.1

Food

7.3

Entertainment

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

American Airlines
7.3
Good
14,728 reviews
Alaska Airlines
8.1
Very good
9,137 reviews
Check prices

Crew

8.6

Comfort

7.9

Boarding

8.2

Overall

8.1

Food

7.3

Entertainment

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Sun Country Air
7.3
Good
647 reviews
Alaska Airlines
8.1
Very good
9,137 reviews
Check prices

Crew

8.6

Comfort

7.9

Boarding

8.2

Overall

8.1

Food

7.3

Entertainment

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Related info for your journey

Find useful and relevant information for your journey from Pennsylvania to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to St. Louis from Pennsylvania?

    Located just 12.7 mi from the city center, Lambert-St Louis (STL) is the airport most travelers will use when flying to St. Louis from Pennsylvania.

  • Can I find flights from Pennsylvania to St. Louis for under $100 on Cheapflights?

    Yes, there are multiple flights from Pennsylvania to St. Louis for under $100. The cheapest flight booked recently is on Frontier for just $58, but on average you can expect to pay $108.

  • Are there nonstop flights from Pennsylvania to St. Louis for under $100 on Cheapflights?

    Cheapflights has at least 20 direct flights from Pennsylvania to St. Louis under $100. A good price for a nonstop flight from Pennsylvania to St. Louis is less than $145.

  • Are there last-minute flights available from Pennsylvania to St. Louis for under $200?

    There are currently 20+ open flights from Pennsylvania to St. Louis within the next 7 days for less than $200.

  • What are the cheapest airlines to fly from Pennsylvania to St. Louis one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $26. Users have also found prices from $49 and $90 on Spirit Airlines and American Airlines, respectively.

  • What are the most popular routes from Pennsylvania to St. Louis?

    While some choose either Pittsburgh - Lambert-St Louis or Harrisburg - Lambert-St Louis, Philadelphia - Lambert-St Louis is the most popular route from Pennsylvania to St. Louis.

  • What are the most popular airlines that fly from Pennsylvania to St. Louis?

    Consider American Airlines, Delta or Frontier when booking your flight. These represent the most popular airlines when flying from Pennsylvania to St. Louis.

  • What are the most reliable airlines from Pennsylvania to St. Louis?

    Consider British Airways (88%), Iberia (83%) or Aer Lingus (78%) when booking your flight. These represent the most reliable airlines when flying from Pennsylvania to St. Louis.

  • What are the cheapest flights from Pennsylvania to St. Louis?

    The cheapest flight price from Pennsylvania to St. Louis is $57. On average you can expect to pay $244. The most popular route, (Philadelphia - Lambert-St Louis), can usually be booked for $58.

  • What does PHL to STL mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Philadelphia Airport to Lambert-St Louis Airport flight would often be abbreviated as a PHL to STL flight. While you’re still figuring out your travel plans, it’s not a bad idea to learn the names and codes of other airports around these areas: Pittsburgh Airport (PIT), Harrisburg Airport (MDT), Allentown-Bethlehem Airport (ABE), Wilkes-Barre Scranton Airport (AVP), State College University Park Airport (SCE).

  • Can I find deals for flights from Pennsylvania to St. Louis that include extra baggage allowance?

    The amount of baggage you can bring on your Pennsylvania to St. Louis flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Pennsylvania to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Pennsylvania to St. Louis flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Pennsylvania to St. Louis that include hotel bookings?

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

  • How can I find direct flights from Pennsylvania to St. Louis?

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

  • Can I find deals for business class flights from Pennsylvania to St. Louis?

    Yes. Cheapflights offers flight deals from Pennsylvania to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Pennsylvania to St. Louis that allow pets onboard?

    Many airlines flying from Pennsylvania to St. Louis offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Pennsylvania to St. Louis?

    Yes, you can often find last-minute deals on Pennsylvania to St. Louis flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Pennsylvania to St. Louis flight deals updated?

    The Pennsylvania to St. Louis flight deals you see on this page were last updated on 5/4.

See more FAQs

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Alternative routes for Pennsylvania to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.

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Top 5 airlines flying from Pennsylvania to St. Louis

Discover the top 5 airlines that operate flights from Pennsylvania to St. Louis. 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 2,864,334 searches. Data last updated May 4, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$78Average$196FlexibilityNo cancel feeOn-time62%
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Spirit AirlinesCheapest$127Average$229FlexibilityNo cancel feeOn-time65%
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American AirlinesCheapest$224Average$388FlexibilityNo cancel feeOn-time71%
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DeltaCheapest$238Average$413FlexibilityNo cancel feeOn-timeN/A
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United AirlinesCheapest$261Average$549FlexibilityNo cancel feeOn-time69%
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Search flights from Pennsylvania to St. Louis by cabin class

Find flights from Pennsylvania to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from Pennsylvania to St. Louis

Find hourly flight availability from Pennsylvania to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 4, 2024.
1%of flight departuresEarly morningMidnight to 6 am
35%of flight departuresMorning6 am to noon
0%of flight departuresAfternoonNoon to 6 pm
64%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

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How does Cheapflights help users find flights from Pennsylvania to St. Louis?

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Why should you use Cheapflights to find cheap flight tickets from Pennsylvania to St. Louis?

Cheapflights helps you find that perfect flight to St. Louis from Pennsylvania by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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Certainly. Search results for flights to St. Louis from Pennsylvania shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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