$241+ Cheap flights from St. Louis to Allentown (STL - ABE)
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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ABE
May 23 — May 301
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Allentown 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 St. Louis to Allentown
Cheapest
Best
Last-minute
One-way
Cheapest flights from St. Louis to AllentownExplore the most affordable flight options available from St. Louis to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 23, 2026.
Explore the most affordable flight options available from St. Louis to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 23, 2026.
This American Airlines deal was found by Cheapflights users on 4/20. 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.
Wed 5/206:54 pm
STL
- ABE
1 stop4h 28m
American Airlines
Wed 5/275:46 pm
ABE
- STL
1 stop6h 58m
American Airlines
Deal found 4/20![American Airlines logo]()
$309
This Delta deal was found by Cheapflights users on 4/19. 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.
Thu 5/2810:49 am
STL
- ABE
1 stop5h 39m
Delta
Tue 6/26:23 am
ABE
- STL
1 stop6h 57m
Delta
Deal found 4/19![Delta logo]()
$343
This Delta deal was found by Cheapflights users on 4/19. 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 5/111:42 am
STL
- ABE
1 stop4h 37m
Delta
Sun 5/36:33 am
ABE
- STL
1 stop5h 01m
Delta
Deal found 4/19![Delta logo]()
$395
This United Airlines deal was found by Cheapflights users on 4/19. 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 5/301:13 pm
STL
- ABE
1 stop6h 54m
United Airlines
Fri 6/55:36 pm
ABE
- STL
1 stop4h 40m
United Airlines
Deal found 4/19![United Airlines logo]()
$401
This Delta deal was found by Cheapflights users on 4/22. 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.
Thu 12/106:00 am
STL
- ABE
1 stop5h 04m
Delta
Sun 12/136:30 am
ABE
- STL
1 stop5h 18m
Delta
Deal found 4/22![Delta logo]()
$435
This Delta deal was found by Cheapflights users on 4/22. 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 5/26:00 am
STL
- ABE
1 stop5h 12m
Delta
Sun 5/36:33 am
ABE
- STL
1 stop6h 23m
Delta
Deal found 4/22![Delta logo]()
$437
This Delta deal was found by Cheapflights users on 4/23. 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 4/255:00 pm
STL
- ABE
1 stop5h 00m
Delta
Tue 5/126:15 pm
ABE
- STL
1 stop6h 44m
Delta
Deal found 4/23![Delta logo]()
$444
This United Airlines deal was found by Cheapflights users on 4/19. 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 5/231:13 pm
STL
- ABE
1 stop6h 54m
United Airlines
Wed 5/275:36 pm
ABE
- STL
1 stop4h 45m
United Airlines
Deal found 4/19![United Airlines logo]()
$454
This Kiwi.com deal was found by Cheapflights users on 4/19. 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.
Sat 5/308:16 pm
STL
- ABE
2 stops41h 26m
Multiple Airlines
Fri 6/57:30 am
ABE
- STL
1 stop12h 53m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$462
This Delta deal was found by Cheapflights users on 4/20. 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 11/206:00 am
STL
- ABE
1 stop5h 04m
Delta
Sun 11/226:30 am
ABE
- STL
1 stop7h 26m
Delta
Deal found 4/20![Delta logo]()
$481
This Delta deal was found by Cheapflights users on 4/20. 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.
Sun 6/73:45 pm
STL
- ABE
1 stop5h 45m
Delta
Mon 6/86:09 pm
ABE
- STL
1 stop5h 05m
Delta
Deal found 4/20![Delta logo]()
$483
Best flights from St. Louis to AllentownDiscover carefully curated flight deals from St. Louis to Allentown that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 23, 2026.
Discover carefully curated flight deals from St. Louis to Allentown that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 23, 2026.
This Delta deal was found by Cheapflights users on 4/19. 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.
Thu 5/2810:49 am
STL
- ABE
1 stop5h 39m
Delta
Tue 6/26:23 am
ABE
- STL
1 stop6h 57m
Delta
Deal found 4/19![Delta logo]()
$343
This United Airlines deal was found by Cheapflights users on 4/19. 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 5/301:13 pm
STL
- ABE
1 stop6h 54m
United Airlines
Fri 6/55:36 pm
ABE
- STL
1 stop4h 40m
United Airlines
Deal found 4/19![United Airlines logo]()
$401
This American Airlines deal was found by Cheapflights users on 4/20. 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.
Wed 5/2012:27 pm
STL
- ABE
2 stops10h 55m
American Airlines
Wed 5/275:46 pm
ABE
- STL
1 stop6h 58m
American Airlines
Deal found 4/20![American Airlines logo]()
$476
This Kiwi.com deal was found by Cheapflights users on 4/19. 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.
Sat 5/304:19 pm
STL
- ABE
1 stop20h 38m
Multiple Airlines
Fri 6/57:30 am
ABE
- STL
1 stop12h 53m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$486
This Delta deal was found by Cheapflights users on 4/19. 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 5/304:00 pm
STL
- ABE
1 stop5h 18m
Delta
Fri 6/56:15 pm
ABE
- STL
1 stop6h 44m
Delta
Deal found 4/19![Delta logo]()
$343
This American Airlines deal was found by Cheapflights users on 4/18. 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.
Wed 7/1512:40 pm
STL
- ABE
1 stop4h 52m
American Airlines
Mon 7/205:18 pm
ABE
- STL
1 stop7h 38m
American Airlines
Deal found 4/18![American Airlines logo]()
$491
This United Airlines deal was found by Cheapflights users on 4/21. 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.
Wed 5/611:15 am
STL
- ABE
1 stop4h 45m
United Airlines
Sun 5/105:40 pm
ABE
- STL
1 stop4h 33m
United Airlines
Deal found 4/21![United Airlines logo]()
$609
This Delta deal was found by Cheapflights users on 4/18. 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.
Sun 5/36:00 am
STL
- ABE
1 stop5h 12m
Delta
Thu 5/76:15 pm
ABE
- STL
1 stop6h 44m
Delta
Deal found 4/18![Delta logo]()
$580
This United Airlines deal was found by Cheapflights users on 4/18. 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.
Wed 7/156:00 am
STL
- ABE
1 stop6h 48m
United Airlines
Mon 7/205:41 pm
ABE
- STL
2 stops17h 26m
United Airlines
Deal found 4/18![United Airlines logo]()
$715
This United Airlines deal was found by Cheapflights users on 4/22. 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.
Thu 5/77:45 am
STL
- ABE
1 stop4h 53m
United Airlines
Mon 5/115:40 pm
ABE
- STL
1 stop4h 33m
United Airlines
Deal found 4/22![United Airlines logo]()
$798
Last-minute flights from St. Louis to AllentownDiscover last-minute flight deals from St. Louis to Allentown. Data last updated April 23, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Allentown. Data last updated April 23, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/19. 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 4/2411:42 am
STL
- ABE
1 stop4h 37m
Delta
Sun 4/265:59 pm
ABE
- STL
1 stop6h 37m
Delta
Deal found 4/19![Delta logo]()
$528
This Delta deal was found by Cheapflights users on 4/23. 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 4/255:00 pm
STL
- ABE
1 stop5h 00m
Delta
Tue 5/126:15 pm
ABE
- STL
1 stop6h 44m
Delta
Deal found 4/23![Delta logo]()
$444
This Delta deal was found by Cheapflights users on 4/19. 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 5/111:42 am
STL
- ABE
1 stop4h 37m
Delta
Sun 5/36:33 am
ABE
- STL
1 stop5h 01m
Delta
Deal found 4/19![Delta logo]()
$395
This Delta deal was found by Cheapflights users on 4/22. 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 5/26:00 am
STL
- ABE
1 stop5h 12m
Delta
Sun 5/36:33 am
ABE
- STL
1 stop6h 23m
Delta
Deal found 4/22![Delta logo]()
$437
This American Airlines deal was found by Cheapflights users on 4/20. 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.
Wed 5/206:54 pm
STL
- ABE
1 stop4h 28m
American Airlines
Wed 5/275:46 pm
ABE
- STL
1 stop6h 58m
American Airlines
Deal found 4/20![American Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 4/19. 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 5/231:13 pm
STL
- ABE
1 stop6h 54m
United Airlines
Wed 5/275:36 pm
ABE
- STL
1 stop4h 45m
United Airlines
Deal found 4/19![United Airlines logo]()
$454
This Delta deal was found by Cheapflights users on 4/19. 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.
Thu 5/2810:49 am
STL
- ABE
1 stop5h 39m
Delta
Tue 6/26:23 am
ABE
- STL
1 stop6h 57m
Delta
Deal found 4/19![Delta logo]()
$343
This United Airlines deal was found by Cheapflights users on 4/19. 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 5/301:13 pm
STL
- ABE
1 stop6h 54m
United Airlines
Fri 6/55:36 pm
ABE
- STL
1 stop4h 40m
United Airlines
Deal found 4/19![United Airlines logo]()
$401
This Kiwi.com deal was found by Cheapflights users on 4/19. 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.
Sat 5/308:16 pm
STL
- ABE
2 stops41h 26m
Multiple Airlines
Fri 6/57:30 am
ABE
- STL
1 stop12h 53m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$462
One-way flights from St. Louis to AllentownSearch for one-way flight options from St. Louis to Allentown. Find affordable one-way fares based on user searches. Data last updated April 23, 2026.
Search for one-way flight options from St. Louis to Allentown. Find affordable one-way fares based on user searches. Data last updated April 23, 2026.
This Delta deal was found by Cheapflights users on 4/20. 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.
Tue 4/284:41 pm
STL
- ABE
1 stop5h 19m
Delta
Deal found 4/20![Delta logo]()
$241
This Delta deal was found by Cheapflights users on 4/23. 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.
Thu 4/306:00 am
STL
- ABE
1 stop5h 12m
Delta
Deal found 4/23![Delta logo]()
$290
This United Airlines deal was found by Cheapflights users on 4/22. 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.
Tue 4/289:10 am
STL
- ABE
1 stop6h 53m
United Airlines
Deal found 4/22![United Airlines logo]()
$390
This United Airlines deal was found by Cheapflights users on 4/20. 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.
Fri 5/156:30 am
STL
- ABE
1 stop6h 08m
United Airlines
Deal found 4/20![United Airlines logo]()
$558
This American Airlines deal was found by Cheapflights users on 4/21. 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.
Tue 4/2812:27 pm
STL
- ABE
2 stops10h 01m
American Airlines
Deal found 4/21![American Airlines logo]()
$701
This United Airlines deal was found by Cheapflights users on 4/20. 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.
Sun 5/1710:14 am
STL
- ABE
2 stops9h 44m
United Airlines
Deal found 4/20![United Airlines logo]()
$1,772
Find flight deals from St. Louis to Allentown
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Allentown (ABE). 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 April 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $309 (American Airlines) |
One-way from | $241 (Delta) |
Popular in | March |
Cheapest in | September |
Average price | $401 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Allentown 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 April 23, 2026.
Use the filters below to find and compare flights from St. Louis to Allentown that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisAllentown
STL - ABE
STLABE
Lambert-St Louis
Thu 5/28
10:49 am-5:28 pm
1 stop5h 39m
Allentown-Bethlehem
Tue 6/2
6:23 am-12:20 pm
1 stop6h 57m
$343
St. LouisAllentown
STL - ABE
STLABE
Lambert-St Louis
Sat 5/30
4:00 pm-10:18 pm
1 stop5h 18m
Allentown-Bethlehem
Fri 6/5
6:15 pm-11:59 pm
1 stop6h 44m
$343
St. LouisAllentown
STL - ABE
STLABE
Lambert-St Louis
Sat 5/30
1:13 pm-9:07 pm
1 stop6h 54m
Allentown-Bethlehem
Fri 6/5
5:36 pm-9:16 pm
1 stop4h 40m
$401
St. LouisAllentown
STL - ABE
STLABE
Lambert-St Louis
Wed 5/20
12:27 pm-12:22 am
2 stops10h 55m
Allentown-Bethlehem
Wed 5/27
5:46 pm-11:44 pm
1 stop6h 58m
$476
St. LouisAllentown
STL - ABE
STLABE
Lambert-St Louis
Sat 5/30
4:19 pm-1:57 pm
1 stop20h 38m
Allentown-Bethlehem
Fri 6/5
7:30 am-7:23 pm
1 stop12h 53m
$486
St. LouisAllentown
STL - ABE
STLABE
Lambert-St Louis
Wed 7/15
12:40 pm-6:32 pm
1 stop4h 52m
Allentown-Bethlehem
Mon 7/20
5:18 pm-11:56 pm
1 stop7h 38m
$491
St. LouisAllentown
STL - ABE
STLABE
Lambert-St Louis
Sun 5/3
6:00 am-12:12 pm
1 stop5h 12m
Allentown-Bethlehem
Thu 5/7
6:15 pm-11:59 pm
1 stop6h 44m
$580
Quickest round-trip
St. LouisAllentown
STL - ABE
STLABE
Lambert-St Louis
Wed 5/6
11:15 am-5:00 pm
1 stop4h 45m
Allentown-Bethlehem
Sun 5/10
5:40 pm-9:13 pm
1 stop4h 33m
$609
St. LouisAllentown
STL - ABE
STLABE
Lambert-St Louis
Wed 7/15
6:00 am-1:48 pm
1 stop6h 48m
Allentown-Bethlehem
Mon 7/20
5:41 pm-10:07 am
2 stops17h 26m
$715
St. LouisAllentown
STL - ABE
STLABE
Lambert-St Louis
Thu 5/7
7:45 am-1:38 pm
1 stop4h 53m
Allentown-Bethlehem
Mon 5/11
5:40 pm-9:13 pm
1 stop4h 33m
$798
Showing 1-10 of 16 resultsSorted by cheapest first
Compare providers for flights from St. Louis to Allentown
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 St. Louis to Allentown in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on St. Louis-Allentown flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Allentown flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Allentown flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Allentown flights, Cheapflights users trust FlightHub the most. FlightHub 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 St. Louis-Allentown 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 St. Louis to Allentown
Have a flexible travel schedule? Discover the best time to fly to Allentown from St. Louis with our price prediction graph.
STL-ABE
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 St. Louis to Allentown
What is the cheapest month to book a flight from St. Louis to Allentown?
Currently, September is the cheapest month in which you can book a flight from St. Louis to Allentown (average of $268). Flying from St. Louis to Allentown in March is currently the most expensive (average of $610). 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 St. Louis to Allentown?
Reviews of airlines servicing Allentown
Get insights into the airlines that provide service to Allentown. 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 Allentown. Reviews last updated April 23, 2026.
Get a feel of what it's like to fly with Delta and American Airlines from St. Louis to Allentown by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Entertainment
7.8
Food
7.2
Overall
7.9
Crew
8.5
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Entertainment
7.8
Food
7.2
Overall
7.9
Crew
8.5
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Boarding
8.1
Entertainment
7.8
Food
7.2
Overall
7.9
Crew
8.5
Comfort
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
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Top 2 airlines flying from St. Louis to Allentown
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$248 | Average$308 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$274 | Average$342 | FlexibilityNo cancel fee | On-timeN/A |