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$169+ 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 12/22. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — STL
dic. 31 — ene. 71
mié. 12/31
mié. 1/7
1 adult, Economy
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Find 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 diciembre 1, 2025.

This Delta deal was found by Cheapflights users on 11/29. 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.
sáb. 12/1312:54 pmABE - STL
1 stop6h 06mDelta
dom. 12/146:00 amSTL - ABE
1 stop5h 14mDelta
Deal found 11/29$279
This Kiwi.com deal was found by Cheapflights users on 11/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/182:37 pmABE - STL
1 stop8h 56mMultiple Airlines
mar. 12/2310:48 amSTL - ABE
2 stops33h 09mMultiple Airlines
Deal found 11/30$307
This Delta deal was found by Cheapflights users on 11/30. 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.
lun. 12/156:00 pmABE - STL
1 stop6h 42mDelta
jue. 12/257:00 amSTL - ABE
1 stop5h 13mDelta
Deal found 11/30$309
This Kiwi.com deal was found by Cheapflights users on 11/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/182:37 pmABE - STL
1 stop8h 56mMultiple Airlines
vie. 12/198:37 pmSTL - ABE
2 stops21h 11mMultiple Airlines
Deal found 11/30$313
This Delta deal was found by Cheapflights users on 11/30. 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.
sáb. 12/206:04 pmABE - STL
1 stop6h 38mDelta
jue. 12/257:00 amSTL - ABE
1 stop5h 13mDelta
Deal found 11/30$339
This Kiwi.com deal was found by Cheapflights users on 11/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/182:37 pmABE - STL
1 stop8h 56mMultiple Airlines
lun. 12/229:50 amSTL - ABE
2 stops28h 25mMultiple Airlines
Deal found 11/30$340
This Kiwi.com deal was found by Cheapflights users on 11/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/207:38 pmABE - STL
1 stop16h 18mMultiple Airlines
mar. 12/2310:48 amSTL - ABE
2 stops25h 50mMultiple Airlines
Deal found 11/30$346
This United Airlines deal was found by Cheapflights users on 11/29. 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.
sáb. 12/135:22 pmABE - STL
1 stop6h 23mUnited Airlines
mié. 12/1710:00 amSTL - ABE
1 stop5h 47mUnited Airlines
Deal found 11/29$349
This Kiwi.com deal was found by Cheapflights users on 11/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/47:30 amABE - STL
2 stops12h 06mMultiple Airlines
dom. 12/79:54 amSTL - ABE
1 stop9h 42mMultiple Airlines
Deal found 11/30$360
This Kiwi.com deal was found by Cheapflights users on 11/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/88:30 amABE - STL
1 stop15h 03mMultiple Airlines
sáb. 12/133:30 pmSTL - ABE
2 stops53h 54mMultiple Airlines
Deal found 11/30$363

Cheap 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 diciembre 1, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$249
(Delta)

One-way from

$169
(Kiwi.com)

Popular in

December

Cheapest in

June

Average price

$575
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. 21% potential increase in price ($91 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 diciembre 1, 2025.
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

mar. 1/27

5:59 pm-11:37 pm

1 stop6h 38m

Lambert-St Louis

sáb. 1/31

9:59 am-5:14 pm

1 stop6h 15m

$249

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

sáb. 12/13

12:54 pm-6:00 pm

1 stop6h 06m

Lambert-St Louis

dom. 12/14

6:00 am-12:14 pm

1 stop5h 14m

$279

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

mar. 12/16

6:25 am-10:45 am

1 stop5h 20m

Lambert-St Louis

jue. 12/25

7:00 am-1:13 pm

1 stop5h 13m

$309

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

jue. 12/18

2:37 pm-10:33 pm

1 stop8h 56m

Lambert-St Louis

vie. 12/19

8:37 pm-6:48 pm

2 stops21h 11m

$313

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

sáb. 12/20

6:04 pm-11:42 pm

1 stop6h 38m

Lambert-St Louis

jue. 12/25

7:00 am-1:13 pm

1 stop5h 13m

$339

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

jue. 12/18

2:37 pm-10:33 pm

1 stop8h 56m

Lambert-St Louis

lun. 12/22

9:50 am-3:15 pm

2 stops28h 25m

$340

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

sáb. 12/13

5:22 pm-10:45 pm

1 stop6h 23m

Lambert-St Louis

mié. 12/17

10:00 am-4:47 pm

1 stop5h 47m

$349

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

sáb. 12/20

7:38 pm-10:56 am

1 stop16h 18m

Lambert-St Louis

mar. 12/23

4:27 pm-8:57 pm

1 stop27h 30m

$351

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

jue. 12/4

7:30 am-6:36 pm

2 stops12h 06m

Lambert-St Louis

dom. 12/7

9:54 am-8:36 pm

1 stop9h 42m

$360

AllentownSt. Louis

ABE - STL

ABESTL

Allentown-Bethlehem

lun. 12/8

8:30 am-10:33 pm

1 stop15h 03m

Lambert-St Louis

sáb. 12/13

3:30 pm-10:24 pm

2 stops53h 54m

$363

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/28

Showing 1-10 of 17 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 December.
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 $283). 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.

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

Find hourly flight availability from Allentown 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 diciembre 1, 2025.

When flying from Allentown to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 46% versus a flight at noon.

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 diciembre 1, 2025.
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
8,012 reviews

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

Comfort

7.9

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
8,012 reviews
Delta
7.9
Good
8,012 reviews

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

Comfort

7.9

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
11,039 reviews
Delta
7.9
Good
8,012 reviews

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

Comfort

7.9

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 6h 38m. 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 32% 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 $283). 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
Fairview Heights
Maryland Heights
Collinsville
Swansea
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Allentown to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Allentown to St. Louis

Discover the top 2 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 diciembre 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$228Average$300FlexibilityNo cancel feeOn-time71%
DeltaCheapest$242Average$338FlexibilityNo cancel feeOn-timeN/A

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