HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$232+ 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 3/31. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — STL
Feb 3 — Feb 101
Tue 2/3
Tue 2/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Allentown to St. Louis with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 January 4, 2026.

This Delta deal was found by Cheapflights users on 1/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/2312:50 pmABE - STL
1 stop6h 00mDelta
Sun 1/259:59 amSTL - ABE
1 stop6h 15mDelta
Deal found 1/1$294
This Delta deal was found by Cheapflights users on 1/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/206:30 amABE - STL
1 stop7h 04mDelta
Sat 6/273:42 pmSTL - ABE
1 stop6h 14mDelta
Deal found 1/2$319
This United Airlines deal was found by Cheapflights users on 1/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/3111:30 amABE - STL
1 stop5h 33mUnited Airlines
Tue 2/39:57 amSTL - ABE
1 stop5h 25mUnited Airlines
Deal found 1/1$339
This Delta deal was found by Cheapflights users on 1/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/612:48 pmABE - STL
1 stop6h 02mDelta
Sun 2/86:00 amSTL - ABE
1 stop6h 01mDelta
Deal found 1/2$354
This Delta deal was found by Cheapflights users on 1/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/151:00 pmABE - STL
1 stop6h 02mDelta
Sun 5/176:00 amSTL - ABE
1 stop5h 10mDelta
Deal found 1/3$379
This Delta deal was found by Cheapflights users on 1/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/265:59 pmABE - STL
1 stop6h 38mDelta
Thu 1/299:59 amSTL - ABE
1 stop6h 15mDelta
Deal found 1/2$403
This Delta deal was found by Cheapflights users on 1/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/265:59 pmABE - STL
1 stop6h 38mDelta
Fri 1/306:00 amSTL - ABE
1 stop5h 05mDelta
Deal found 1/2$441
This American Airlines deal was found by Cheapflights users on 1/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/207:10 pmABE - STL
1 stop5h 22mAmerican Airlines
Sat 6/2712:50 pmSTL - ABE
1 stop4h 50mAmerican Airlines
Deal found 1/2$463

Find flight deals from Allentown to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Allentown (ABE) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 4, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$294
(Delta)

One-way from

$232
(Delta)

Popular in

December

Cheapest in

June

Average price

$346
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. 19% potential increase in price ($82 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Allentown 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 2,558,603 searches. Data last updated January 4, 2026.
Use the filters below to find and compare flights from Allentown to St. Louis that are best for you.

Fly from

Allentown

Fly to

St. Louis

Route

Depart

Return

Price

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

Sat 1/31

11:30 am-4:03 pm

1 stop5h 33m

Lambert-St Louis

Tue 2/3

9:57 am-4:22 pm

1 stop5h 25m

$339

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

Fri 2/6

12:48 pm-5:50 pm

1 stop6h 02m

Lambert-St Louis

Sun 2/8

6:00 am-1:01 pm

1 stop6h 01m

$354

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

Fri 1/16

5:59 pm-11:39 pm

1 stop6h 40m

Lambert-St Louis

Mon 1/19

6:00 am-12:05 pm

1 stop5h 05m

$354

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

Fri 5/15

1:00 pm-6:02 pm

1 stop6h 02m

Lambert-St Louis

Sun 5/17

6:00 am-12:10 pm

1 stop5h 10m

$379

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

Fri 2/13

5:58 pm-11:36 pm

1 stop6h 38m

Lambert-St Louis

Sun 2/15

7:10 am-12:59 pm

1 stop4h 49m

$394

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

Mon 1/26

5:59 pm-11:37 pm

1 stop6h 38m

Lambert-St Louis

Thu 1/29

9:59 am-5:14 pm

1 stop6h 15m

$403

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

Mon 1/26

5:59 pm-11:37 pm

1 stop6h 38m

Lambert-St Louis

Fri 1/30

6:00 am-12:05 pm

1 stop5h 05m

$441

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

Sat 6/20

7:10 pm-11:32 pm

1 stop5h 22m

Lambert-St Louis

Sat 6/27

12:50 pm-6:40 pm

1 stop4h 50m

$463

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

Tue 3/31

12:49 pm-5:53 pm

1 stop6h 04m

$232

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

Mon 3/16

5:59 pm-11:58 pm

1 stop6h 59m

$262

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/3

Showing 1-10 of 14 results
1
2

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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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

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 January 4, 2026.
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
8,023 reviews

Food

7.2

Overall

7.9

Entertainment

7.8

Comfort

7.9

Crew

8.5

Boarding

8.1

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
8,023 reviews
Delta
7.9
Good
8,023 reviews

Food

7.2

Overall

7.9

Entertainment

7.8

Comfort

7.9

Crew

8.5

Boarding

8.1

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.
American Airlines
7.2
Good
11,077 reviews
Delta
7.9
Good
8,023 reviews

Food

7.2

Overall

7.9

Entertainment

7.8

Comfort

7.9

Crew

8.5

Boarding

8.1

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.

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?

    Departing from Allentown to St. Louis will take you 5h 33m. Allentown and St. Louis are separated by a distance of 803 mi. This flight may include one or multiple stops.

  • 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. Other airlines that can offer you cheap pricing are United Airlines, from $236, and Delta, from $242. Users have found that American Airlines is 34% 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

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Allentown to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
Newark to St. Louis flights
LaGuardia to St. Louis flights
John F Kennedy Intl to Kansas City flights
LaGuardia to Kansas City flights
Newark to Kansas City flights
Dulles Intl to St. Louis flights
John F Kennedy Intl to St. Louis flights
Dulles Intl to Kansas City flights
Reagan-National to St. Louis flights
Philadelphia to St. Louis flights
Philadelphia to Kansas City flights
Reagan-National to Kansas City flights
Dulles Intl to Springfield flights
Reagan-National to Springfield flights
Philadelphia to Springfield flights
Pittsburgh to St. Louis flights
LaGuardia to Springfield flights
Newark to Springfield flights
John F Kennedy Intl to Springfield flights
Allentown to Kansas City flights
Pittsburgh to Kansas City flights
Harrisburg to St. Louis flights
Allentown to Springfield flights
Scranton to St. Louis flights
Pittsburgh to Springfield flights
Dulles Intl to Columbia flights
Harrisburg to Kansas City flights
Scranton to Kansas City flights
Newark to Joplin flights
Reagan-National to Columbia flights
LaGuardia to Joplin flights
Newark to Columbia flights
LaGuardia to Columbia flights
Pittsburgh to Joplin flights
State College to St. Louis flights
Philadelphia to Columbia flights
Harrisburg to Springfield flights
John F Kennedy Intl to Columbia flights
Philadelphia to Joplin flights
Dulles Intl to Joplin flights
Reagan-National to Joplin flights
Scranton to Springfield flights
State College to Springfield flights
Scranton to Joplin flights
Allentown to Joplin flights
Newark to Quincy flights
State College to Kansas City flights
Harrisburg to Joplin flights

Top 3 airlines flying from Allentown to St. Louis

Discover the top 3 airlines that operate flights from Allentown 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 2,558,603 searches. Data last updated January 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$228Average$303FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$236Average$438FlexibilityNo cancel feeOn-time69%
DeltaCheapest$242Average$333FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.