How long is the flight from Allentown to St. Louis?

Departing from Allentown to St. Louis will take you 7h 13m. Allentown and St. Louis are separated by a distance of 803 mi.

What are the cheapest airlines flying from Allentown to St. Louis round-trip?

Cheapflights users have booked flights from Allentown to St. Louis round-trip from $228. Another airline that can offer you cheap pricing is Delta. Users have found that American Airlines is 33% cheaper than the other options available to this destination.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

If weather is an important factor for your trip to St. Louis, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

What is the cheapest time of day to fly from ABE to STL?

When flying from Allentown to St. Louis, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on Allentown-St. Louis flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Allentown-St. Louis flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Allentown-St. Louis flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Allentown-St. Louis flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Allentown-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Allentown 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.

$190+ Flights from Allentown to St. Louis

Q: How much does it cost to fly round-trip from Allentown to St. Louis?

Airfare is below average for this route at the moment. Allentown to St. Louis flights typically cost between $335 and $384 in January. The cheapest round-trip price found within the last 3 days was $266 on Multiple Airlines (Jan 26-Jan 29).

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Cheap flight deals from Allentown to St. Louis

Cheapest flights from Allentown to St. Louis
Explore the most affordable flight options available from Allentown to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 30, 2025.

Wed 12/316:25 amABE - STL

1 stop6h 56mDelta

Wed 12/315:13 pmSTL - ABE

1 stop4h 33mDelta

Deal found 12/29

$945

Best flights from Allentown to St. Louis
Discover carefully curated flight deals from Allentown to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 30, 2025.

Mon 1/268:30 amABE - STL

1 stop16h 03mMultiple Airlines

Thu 1/295:42 pmSTL - ABE

1 stop19h 51mMultiple Airlines

Deal found 12/29

$266

Thu 6/256:30 amABE - STL

1 stop7h 24mDelta

Sun 6/286:00 amSTL - ABE

1 stop5h 10mDelta

Deal found 12/28

$323

Sat 1/3111:30 amABE - STL

1 stop7h 13mUnited Airlines

Tue 2/33:11 pmSTL - ABE

1 stop4h 54mUnited Airlines

Deal found 12/27

$339

Wed 1/211:02 pmABE - STL

1 stop6h 32mAmerican Airlines

Fri 1/233:54 pmSTL - ABE

1 stop5h 32mAmerican Airlines

Deal found 12/27

$426

Fri 2/66:15 amABE - STL

1 stop5h 47mUnited Airlines

Sun 2/89:57 amSTL - ABE

1 stop5h 25mUnited Airlines

Deal found 12/27

$389

Fri 2/65:59 pmABE - STL

1 stop6h 38mDelta

Sun 2/87:10 amSTL - ABE

1 stop4h 51mDelta

Deal found 12/29

$391

Sat 6/277:10 pmABE - STL

1 stop5h 22mAmerican Airlines

Sun 6/2812:50 pmSTL - ABE

1 stop4h 50mAmerican Airlines

Deal found 12/29

$463

Thu 4/912:49 pmABE - STL

1 stop6h 04mDelta

Sat 4/116:04 amSTL - ABE

1 stop5h 02mDelta

Deal found 12/28

$421

Last-minute flights from Allentown to St. Louis
Discover last-minute flight deals from Allentown to St. Louis. Data last updated December 30, 2025 and is based on user searches.

Thu 1/85:59 pmABE - STL

1 stop6h 40mDelta

Sun 1/116:00 amSTL - ABE

1 stop5h 05mDelta

Deal found 12/29

$405

Thu 1/88:30 amABE - STL

1 stop15h 03mMultiple Airlines

Sun 1/113:43 pmSTL - ABE

2 stops29h 18mMultiple Airlines

Deal found 12/29

$517

Sun 1/115:59 pmABE - STL

1 stop6h 40mDelta

Fri 1/166:00 amSTL - ABE

1 stop5h 05mDelta

Deal found 12/28

$609

Tue 1/134:57 pmABE - STL

1 stop5h 16mUnited Airlines

Sat 1/178:05 amSTL - ABE

1 stop25h 36mUnited Airlines

Deal found 12/29

$466

Tue 1/201:02 pmABE - STL

1 stop6h 32mAmerican Airlines

Thu 1/223:54 pmSTL - ABE

1 stop5h 32mAmerican Airlines

Deal found 12/27

$360

Wed 1/211:02 pmABE - STL

1 stop6h 32mAmerican Airlines

Fri 1/233:54 pmSTL - ABE

1 stop5h 32mAmerican Airlines

Deal found 12/27

$426

Mon 1/268:30 amABE - STL

1 stop16h 03mMultiple Airlines

Thu 1/295:42 pmSTL - ABE

1 stop19h 51mMultiple Airlines

Deal found 12/29

$266

Sat 1/3111:30 amABE - STL

1 stop7h 13mUnited Airlines

Tue 2/33:11 pmSTL - ABE

1 stop4h 54mUnited Airlines

Deal found 12/28

$339

One-way flights from Allentown to St. Louis
Search for one-way flight options from Allentown to St. Louis. Find affordable one-way fares based on user searches. Data last updated December 30, 2025.

Sun 1/113:13 pmABE - STL

3 stops56h 21mMultiple Airlines

Deal found 12/28

$190

Sun 1/116:15 amABE - STL

1 stop5h 47mUnited Airlines

Deal found 12/28

$296

Find flight deals from Allentown to St. Louis

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$266 (Kiwi.com)
One-way from	$190 (Kiwi.com)
Popular in	December
Cheapest in	June
Average price	$528

Provider with most accurate pricing for Allentown-Bethlehem-Lambert-St Louis flight deals.

Search Deals

Provider most trusted by Cheapflights users for Allentown-Bethlehem-Lambert-St Louis flights.

Search Deals

From Allentown-Bethlehem to Lambert-St Louis

Search Deals

One-way flight from Allentown-Bethlehem to Lambert-St Louis

Search Deals

Highest demand for flights based on searches. 20% potential increase in price ($88 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($17 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Allentown to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

Mon 1/26

8:30 am-11:33 pm

1 stop16h 03m

Lambert-St Louis

Thu 1/29

5:42 pm-2:33 pm

1 stop19h 51m

$266

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

Thu 6/25

6:30 am-12:54 pm

1 stop7h 24m

Lambert-St Louis

Sun 6/28

6:00 am-12:10 pm

1 stop5h 10m

$323

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

Sat 1/31

11:30 am-5:43 pm

1 stop7h 13m

Lambert-St Louis

Tue 2/3

3:11 pm-9:05 pm

1 stop4h 54m

$339

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

Fri 2/6

6:15 am-11:02 am

1 stop5h 47m

Lambert-St Louis

Sun 2/8

9:57 am-4:22 pm

1 stop5h 25m

$389

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

Fri 2/6

5:59 pm-11:37 pm

1 stop6h 38m

Lambert-St Louis

Sun 2/8

7:10 am-1:01 pm

1 stop4h 51m

$391

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

Thu 4/9

12:49 pm-5:53 pm

1 stop6h 04m

Lambert-St Louis

Sat 4/11

6:04 am-12:06 pm

1 stop5h 02m

$421

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

Wed 1/21

1:02 pm-6:34 pm

1 stop6h 32m

Lambert-St Louis

Fri 1/23

3:54 pm-10:26 pm

1 stop5h 32m

$426

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

Sat 6/27

7:10 pm-11:32 pm

1 stop5h 22m

Lambert-St Louis

Sun 6/28

12:50 pm-6:40 pm

1 stop4h 50m

$463

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

Sun 1/11

6:28 am-11:05 am

1 stop5h 37m

$296

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

Sun 1/11

6:15 am-11:02 am

1 stop5h 47m

$296

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/28

Compare providers for flights from Allentown to St. Louis

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Allentown to St. Louis in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Allentown-St. Louis flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Allentown-St. Louis flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Allentown-St. Louis flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Allentown-St. Louis flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Allentown-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Allentown to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Allentown 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 Allentown to St. Louis

What is the cheapest month to book a flight from Allentown to St. Louis?

Currently, October is the cheapest month in which you can book a flight from Allentown to St. Louis (average of $168). Flying from Allentown to St. Louis in December is currently the most expensive (average of $248). 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.

How much does it cost to fly round-trip from Allentown to St. Louis?

Reviews of airlines servicing St. Louis

Peruse reviews from past customers who have flown with Delta and American Airlines from Allentown to St. Louis to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.9

Good

8,017 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Delta

7.9

Good

8,017 reviews

Delta

7.9

Good

8,017 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

American Airlines

7.2

Good

11,073 reviews

Delta

7.9

Good

8,017 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Related info for your journey

How long is the flight from Allentown to St. Louis?
Departing from Allentown to St. Louis will take you 7h 13m. Allentown and St. Louis are separated by a distance of 803 mi.
What are the cheapest airlines flying from Allentown to St. Louis round-trip?
Cheapflights users have booked flights from Allentown to St. Louis round-trip from $228. Another airline that can offer you cheap pricing is Delta. Users have found that American Airlines is 33% cheaper than the other options available to this destination.
Can I find deals for flights from Allentown to St. Louis that include hotel bookings?
Yes. In addition to deals on Allentown to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Allentown to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Allentown to St. Louis.
Can I find deals for business class flights from Allentown to St. Louis?
Yes. Cheapflights offers flight deals from Allentown 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.
What is the cheapest month to book a flight from Allentown to St. Louis?
Currently, October is the cheapest month in which you can book a flight from Allentown to St. Louis (average of $168). Flying from Allentown to St. Louis in December is currently the most expensive (average of $248). 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

Edwardsville

O'Fallon

Swansea

Fairview Heights

Maryland Heights

Collinsville

Eureka

Glencoe

Chesterfield

Alton

Farmington

Festus

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Top 2 airlines flying from Allentown to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$228	Average$302	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$242	Average$323	FlexibilityNo cancel fee	On-timeN/A

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$190+ Cheap flights from Allentown to St. Louis (ABE - STL)

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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Allentown to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Allentown to St. Louis

Cheapest flights from Allentown to St. LouisExplore the most affordable flight options available from Allentown to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 30, 2025.

Explore the most affordable flight options available from Allentown to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 30, 2025.

Find flight deals from Allentown to St. Louis

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Allentown to St. Louis that are best for you.

Compare providers for flights from Allentown to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Allentown to St. Louis in December.

Best time to book a flight from Allentown to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Allentown with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Allentown to St. Louis

What is the cheapest month to book a flight from Allentown to St. Louis?

How much does it cost to fly round-trip from Allentown to St. Louis?

Reviews of airlines servicing St. Louis

Peruse reviews from past customers who have flown with Delta and American Airlines from Allentown to St. Louis to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

How long is the flight from Allentown to St. Louis?

What are the cheapest airlines flying from Allentown to St. Louis round-trip?

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

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

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

What is the cheapest month to book a flight from Allentown to St. Louis?

Traveling to a place near St. Louis?

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Alternative routes for Allentown to St. Louis

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Top 2 airlines flying from Allentown to St. Louis

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Cheapest flights from Allentown to St. Louis
Explore the most affordable flight options available from Allentown to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 30, 2025.