$217+ 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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — STL
Apr 19 — Apr 261
Round-trip
1 adult, Economy
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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
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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
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Best
Last-minute
One-way
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 March 20, 2026.
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 March 20, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/19. 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.
Mon 4/206:30 am
ABE
- STL
1 stop17h 49m
Multiple Airlines
Wed 4/228:23 pm
STL
- ABE
2 stops17h 33m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$338
This Delta deal was found by Cheapflights users on 3/19. 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 4/35:58 pm
ABE
- STL
1 stop7h 00m
Delta
Sat 4/1811:42 am
STL
- ABE
1 stop4h 37m
Delta
Deal found 3/19![Delta logo]()
$354
This Delta deal was found by Cheapflights users on 3/16. 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 6/271:00 pm
ABE
- STL
1 stop7h 12m
Delta
Fri 7/36:00 am
STL
- ABE
1 stop5h 10m
Delta
Deal found 3/16![Delta logo]()
$355
This Delta deal was found by Cheapflights users on 3/19. 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.
Mon 4/205:59 pm
ABE
- STL
1 stop6h 37m
Delta
Wed 4/2211:42 am
STL
- ABE
1 stop4h 37m
Delta
Deal found 3/19![Delta logo]()
$369
This Delta deal was found by Cheapflights users on 3/19. 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.
Wed 4/225:59 pm
ABE
- STL
1 stop6h 37m
Delta
Thu 4/2311:42 am
STL
- ABE
1 stop4h 37m
Delta
Deal found 3/19![Delta logo]()
$378
This Delta deal was found by Cheapflights users on 3/16. 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 6/201:00 pm
ABE
- STL
1 stop7h 12m
Delta
Sat 6/273:42 pm
STL
- ABE
1 stop6h 14m
Delta
Deal found 3/16![Delta logo]()
$387
This United Airlines deal was found by Cheapflights users on 3/20. 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.
Sat 8/82:23 pm
ABE
- STL
1 stop6h 00m
United Airlines
Tue 8/116:00 am
STL
- ABE
1 stop6h 42m
United Airlines
Deal found 3/20![United Airlines logo]()
$390
This Delta deal was found by Cheapflights users on 3/17. 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 6/271:00 pm
ABE
- STL
1 stop7h 12m
Delta
Mon 6/293:42 pm
STL
- ABE
1 stop6h 14m
Delta
Deal found 3/17![Delta logo]()
$396
This Delta deal was found by Cheapflights users on 3/16. 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 4/175:59 pm
ABE
- STL
1 stop6h 37m
Delta
Sun 4/196:00 am
STL
- ABE
1 stop5h 12m
Delta
Deal found 3/16![Delta logo]()
$410
This American Airlines deal was found by Cheapflights users on 3/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/295:46 pm
ABE
- STL
1 stop6h 58m
American Airlines
Mon 6/16:12 pm
STL
- ABE
1 stop5h 09m
American Airlines
Deal found 3/19![American Airlines logo]()
$411
Best flights from Allentown to St. LouisDiscover 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 March 20, 2026.
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 March 20, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/19. 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.
Mon 4/206:30 am
ABE
- STL
1 stop17h 49m
Multiple Airlines
Wed 4/228:23 pm
STL
- ABE
2 stops17h 33m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$338
This Delta deal was found by Cheapflights users on 3/16. 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 6/271:00 pm
ABE
- STL
1 stop7h 12m
Delta
Fri 7/36:00 am
STL
- ABE
1 stop5h 10m
Delta
Deal found 3/16![Delta logo]()
$355
This United Airlines deal was found by Cheapflights users on 3/20. 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.
Sat 8/82:23 pm
ABE
- STL
1 stop6h 00m
United Airlines
Tue 8/116:00 am
STL
- ABE
1 stop6h 42m
United Airlines
Deal found 3/20![United Airlines logo]()
$390
This American Airlines deal was found by Cheapflights users on 3/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1612:00 pm
ABE
- STL
1 stop7h 04m
American Airlines
Mon 4/206:55 pm
STL
- ABE
1 stop4h 27m
American Airlines
Deal found 3/19![American Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 3/15. 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 6/271:00 pm
ABE
- STL
1 stop7h 12m
Delta
Mon 6/293:42 pm
STL
- ABE
1 stop6h 14m
Delta
Deal found 3/15![Delta logo]()
$355
This Delta deal was found by Cheapflights users on 3/15. 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 4/145:59 pm
ABE
- STL
1 stop6h 37m
Delta
Tue 4/214:41 pm
STL
- ABE
1 stop5h 19m
Delta
Deal found 3/15![Delta logo]()
$355
This Delta deal was found by Cheapflights users on 3/19. 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.
Wed 4/225:59 pm
ABE
- STL
1 stop6h 37m
Delta
Thu 4/2311:42 am
STL
- ABE
1 stop4h 37m
Delta
Deal found 3/19![Delta logo]()
$378
This Delta deal was found by Cheapflights users on 3/16. 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 4/235:59 pm
ABE
- STL
1 stop6h 37m
Delta
Sun 4/264:41 pm
STL
- ABE
1 stop5h 19m
Delta
Deal found 3/16![Delta logo]()
$419
Last-minute flights from Allentown to St. LouisDiscover last-minute flight deals from Allentown to St. Louis. Data last updated March 20, 2026 and is based on user searches.
Discover last-minute flight deals from Allentown to St. Louis. Data last updated March 20, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 3/17. 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 3/315:58 pm
ABE
- STL
1 stop7h 00m
Delta
Tue 4/75:21 pm
STL
- ABE
1 stop4h 31m
Delta
Deal found 3/17![Delta logo]()
$442
This Delta deal was found by Cheapflights users on 3/19. 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 4/35:58 pm
ABE
- STL
1 stop7h 00m
Delta
Sat 4/1811:42 am
STL
- ABE
1 stop4h 37m
Delta
Deal found 3/19![Delta logo]()
$354
This Delta deal was found by Cheapflights users on 3/15. 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 4/145:59 pm
ABE
- STL
1 stop6h 37m
Delta
Tue 4/214:41 pm
STL
- ABE
1 stop5h 19m
Delta
Deal found 3/15![Delta logo]()
$355
This American Airlines deal was found by Cheapflights users on 3/15. 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 4/1412:57 pm
ABE
- STL
1 stop5h 06m
American Airlines
Tue 4/215:53 pm
STL
- ABE
1 stop4h 35m
American Airlines
Deal found 3/15![American Airlines logo]()
$413
This Delta deal was found by Cheapflights users on 3/17. 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 4/146:33 am
ABE
- STL
1 stop6h 23m
Delta
Thu 4/1611:42 am
STL
- ABE
1 stop4h 37m
Delta
Deal found 3/17![Delta logo]()
$429
This American Airlines deal was found by Cheapflights users on 3/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1612:00 pm
ABE
- STL
1 stop7h 04m
American Airlines
Mon 4/206:55 pm
STL
- ABE
1 stop4h 27m
American Airlines
Deal found 3/19![American Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 3/16. 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 4/175:59 pm
ABE
- STL
1 stop6h 37m
Delta
Sun 4/196:00 am
STL
- ABE
1 stop5h 12m
Delta
Deal found 3/16![Delta logo]()
$410
This Kiwi.com deal was found by Cheapflights users on 3/19. 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.
Mon 4/206:30 am
ABE
- STL
1 stop17h 49m
Multiple Airlines
Wed 4/228:23 pm
STL
- ABE
2 stops17h 33m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$338
This Delta deal was found by Cheapflights users on 3/19. 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.
Mon 4/205:59 pm
ABE
- STL
1 stop6h 37m
Delta
Wed 4/2211:42 am
STL
- ABE
1 stop4h 37m
Delta
Deal found 3/19![Delta logo]()
$369
This Delta deal was found by Cheapflights users on 3/19. 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.
Wed 4/225:59 pm
ABE
- STL
1 stop6h 37m
Delta
Thu 4/2311:42 am
STL
- ABE
1 stop4h 37m
Delta
Deal found 3/19![Delta logo]()
$378
This United Airlines deal was found by Cheapflights users on 3/16. 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 4/255:45 pm
ABE
- STL
1 stop4h 28m
United Airlines
Tue 4/287:45 am
STL
- ABE
1 stop25h 03m
United Airlines
Deal found 3/16![United Airlines logo]()
$452
One-way flights from Allentown to St. LouisSearch for one-way flight options from Allentown to St. Louis. Find affordable one-way fares based on user searches. Data last updated March 20, 2026.
Search for one-way flight options from Allentown to St. Louis. Find affordable one-way fares based on user searches. Data last updated March 20, 2026.
This Delta deal was found by Cheapflights users on 3/15. 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 4/215:59 pm
ABE
- STL
1 stop6h 37m
Delta
Deal found 3/15![Delta logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 3/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/278:49 pm
ABE
- STL
2 stops18h 59m
Multiple Airlines
Deal found 3/18![Multiple Airlines logo]()
$218
This Kiwi.com deal was found by Cheapflights users on 3/16. 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.
Sun 6/712:29 pm
ABE
- STL
2 stops7h 07m
Multiple Airlines
Deal found 3/16![Multiple Airlines logo]()
$241
This Delta deal was found by Cheapflights users on 3/18. 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.
Sat 6/66:15 pm
ABE
- STL
1 stop6h 44m
Delta
Deal found 3/18![Delta logo]()
$242
This Delta deal was found by Cheapflights users on 3/16. 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 6/76:30 am
ABE
- STL
1 stop7h 24m
Delta
Deal found 3/16![Delta logo]()
$252
This Delta deal was found by Cheapflights users on 3/17. 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 4/105:58 pm
ABE
- STL
1 stop7h 00m
Delta
Deal found 3/17![Delta logo]()
$260
This Delta deal was found by Cheapflights users on 3/18. 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.
Fri 4/245:59 pm
ABE
- STL
1 stop6h 37m
Delta
Deal found 3/18![Delta logo]()
$275
This United Airlines deal was found by Cheapflights users on 3/18. 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.
Fri 6/52:23 pm
ABE
- STL
1 stop7h 53m
United Airlines
Deal found 3/18![United Airlines logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 3/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/134:38 pm
ABE
- STL
3 stops26h 58m
Multiple Airlines
Deal found 3/18![Multiple Airlines logo]()
$291
This Delta deal was found by Cheapflights users on 3/15. 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 4/205:59 pm
ABE
- STL
1 stop6h 37m
Delta
Deal found 3/15![Delta logo]()
$310
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 March 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $338 (Kiwi.com) |
One-way from | $217 (Delta) |
Popular in | December |
Cheapest in | June |
Average price | $379 |
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 March 20, 2026.
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
Cheapest round-trip
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Mon 4/20
6:30 am-11:19 pm
1 stop17h 49m
Lambert-St Louis
Wed 4/22
8:23 pm-2:56 pm
2 stops17h 33m
$338
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Sat 6/27
1:00 pm-7:12 pm
1 stop7h 12m
Lambert-St Louis
Fri 7/3
6:00 am-12:10 pm
1 stop5h 10m
$355
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Sat 6/27
1:00 pm-7:12 pm
1 stop7h 12m
Lambert-St Louis
Mon 6/29
3:42 pm-10:56 pm
1 stop6h 14m
$355
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Tue 4/14
5:59 pm-11:36 pm
1 stop6h 37m
Lambert-St Louis
Tue 4/21
4:41 pm-11:00 pm
1 stop5h 19m
$355
Quickest round-trip
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Wed 4/22
5:59 pm-11:36 pm
1 stop6h 37m
Lambert-St Louis
Thu 4/23
11:42 am-5:19 pm
1 stop4h 37m
$378
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Sat 8/8
2:23 pm-7:23 pm
1 stop6h 00m
Lambert-St Louis
Tue 8/11
6:00 am-1:42 pm
1 stop6h 42m
$390
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Thu 4/16
12:00 pm-6:04 pm
1 stop7h 04m
Lambert-St Louis
Mon 4/20
6:55 pm-12:22 am
1 stop4h 27m
$419
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Thu 4/23
5:59 pm-11:36 pm
1 stop6h 37m
Lambert-St Louis
Sun 4/26
4:41 pm-11:00 pm
1 stop5h 19m
$419
Cheapest one-way
Quickest one-way
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Tue 4/21
5:59 pm-11:36 pm
1 stop6h 37m
$217
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Mon 7/27
8:49 pm-2:48 pm
2 stops18h 59m
$218
Showing 1-10 of 19 resultsSorted by cheapest first
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 March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Allentown-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Allentown-St. Louis flight deals on Cheapflights vs. FlightHub >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 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 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.
ABE-STL
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
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 March 20, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andAmerican 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.
Overall
7.9
Entertainment
7.8
Food
7.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Entertainment
7.8
Food
7.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Entertainment
7.8
Food
7.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Entertainment
7.8
Food
7.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
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.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsEdwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus
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Top 3 airlines flying from Allentown to St. Louis
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$228 | Average$298 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$248 | Average$333 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$293 | Average$439 | FlexibilityNo cancel fee | On-time69% |