$145+ 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 5/31. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — STL
Jun 13 — Jun 201
Round-trip
1 adult, Economy
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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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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 May 14, 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 May 14, 2026.
This Delta deal was found by Cheapflights users on 5/13. 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 6/166:10 pm
ABE
- STL
1 stop5h 08m
Delta
Wed 6/176:00 am
STL
- ABE
1 stop5h 27m
Delta
Deal found 5/13![Delta logo]()
$297
This Delta deal was found by Cheapflights users on 5/13. 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 6/266:10 pm
ABE
- STL
1 stop6h 46m
Delta
Tue 6/306:00 am
STL
- ABE
1 stop5h 27m
Delta
Deal found 5/13![Delta logo]()
$310
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 8/912:29 pm
ABE
- STL
2 stops7h 07m
Multiple Airlines
Wed 8/124:09 pm
STL
- ABE
1 stop20h 54m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$324
This Delta deal was found by Cheapflights users on 5/10. 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 9/115:40 pm
ABE
- STL
1 stop6h 57m
Delta
Wed 9/166:00 am
STL
- ABE
1 stop5h 08m
Delta
Deal found 5/10![Delta logo]()
$333
This Delta deal was found by Cheapflights users on 5/10. 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 9/106:30 am
ABE
- STL
1 stop7h 23m
Delta
Sat 9/196:00 am
STL
- ABE
1 stop5h 08m
Delta
Deal found 5/10![Delta logo]()
$343
This Delta deal was found by Cheapflights users on 5/10. 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 9/96:30 am
ABE
- STL
2 stops17h 31m
Delta
Wed 9/163:42 pm
STL
- ABE
1 stop6h 14m
Delta
Deal found 5/10![Delta logo]()
$385
This Delta deal was found by Cheapflights users on 5/11. 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 10/21:00 pm
ABE
- STL
1 stop6h 02m
Delta
Sun 10/43:42 pm
STL
- ABE
1 stop6h 14m
Delta
Deal found 5/11![Delta logo]()
$390
This Delta deal was found by Cheapflights users on 5/9. 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 5/266:15 pm
ABE
- STL
1 stop6h 44m
Delta
Sat 5/306:00 am
STL
- ABE
1 stop5h 24m
Delta
Deal found 5/9![Delta logo]()
$400
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 6/87:30 am
ABE
- STL
1 stop12h 53m
Multiple Airlines
Fri 6/124:17 pm
STL
- ABE
1 stop27h 29m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$405
This Kiwi.com deal was found by Cheapflights users on 5/10. 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.
Tue 6/1610:00 am
ABE
- STL
1 stop14h 49m
Multiple Airlines
Mon 6/225:06 pm
STL
- ABE
2 stops21h 51m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$407
This Kiwi.com deal was found by Cheapflights users on 5/9. 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 5/2412:29 pm
ABE
- STL
2 stops7h 07m
Multiple Airlines
Thu 5/288:08 pm
STL
- ABE
1 stop25h 56m
Multiple Airlines
Deal found 5/9![Multiple Airlines logo]()
$409
This American Airlines deal was found by Cheapflights users on 5/11. 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 5/11![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 May 14, 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 May 14, 2026.
This Delta deal was found by Cheapflights users on 5/13. 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 6/166:10 pm
ABE
- STL
1 stop5h 08m
Delta
Wed 6/176:00 am
STL
- ABE
1 stop5h 27m
Delta
Deal found 5/13![Delta logo]()
$297
This United Airlines deal was found by Cheapflights users on 5/10. 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 6/276:15 am
ABE
- STL
1 stop6h 56m
United Airlines
Tue 6/301:13 pm
STL
- ABE
1 stop6h 54m
United Airlines
Deal found 5/10![United Airlines logo]()
$432
This American Airlines deal was found by Cheapflights users on 5/9. 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 6/96:00 am
ABE
- STL
1 stop9h 02m
American Airlines
Sun 6/145:03 pm
STL
- ABE
1 stop5h 16m
American Airlines
Deal found 5/9![American Airlines logo]()
$437
This Delta deal was found by Cheapflights users on 5/10. 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 9/126:30 am
ABE
- STL
1 stop7h 23m
Delta
Fri 9/183:42 pm
STL
- ABE
1 stop6h 14m
Delta
Deal found 5/10![Delta logo]()
$333
This Delta deal was found by Cheapflights users on 5/10. 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 9/85:40 pm
ABE
- STL
1 stop6h 57m
Delta
Sat 9/196:00 am
STL
- ABE
1 stop5h 08m
Delta
Deal found 5/10![Delta logo]()
$333
This Delta deal was found by Cheapflights users on 5/10. 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 9/115:40 pm
ABE
- STL
1 stop6h 57m
Delta
Thu 9/173:42 pm
STL
- ABE
1 stop6h 14m
Delta
Deal found 5/10![Delta logo]()
$333
This Delta deal was found by Cheapflights users on 5/11. 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 6/266:10 pm
ABE
- STL
1 stop6h 46m
Delta
Tue 6/306:00 am
STL
- ABE
1 stop5h 27m
Delta
Deal found 5/11![Delta logo]()
$333
This United Airlines deal was found by Cheapflights users on 5/13. 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 9/3010:38 am
ABE
- STL
1 stop4h 40m
United Airlines
Sat 10/39:23 am
STL
- ABE
1 stop6h 33m
United Airlines
Deal found 5/13![United Airlines logo]()
$468
This Delta deal was found by Cheapflights users on 5/11. 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 10/21:00 pm
ABE
- STL
1 stop6h 02m
Delta
Sun 10/43:42 pm
STL
- ABE
1 stop6h 14m
Delta
Deal found 5/11![Delta logo]()
$390
This Delta deal was found by Cheapflights users on 5/9. 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 9/101:00 pm
ABE
- STL
1 stop6h 02m
Delta
Sun 9/136:00 am
STL
- ABE
1 stop5h 08m
Delta
Deal found 5/9![Delta logo]()
$433
This Delta deal was found by Cheapflights users on 5/9. 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 5/256:15 pm
ABE
- STL
1 stop6h 44m
Delta
Sat 5/306:00 am
STL
- ABE
1 stop5h 24m
Delta
Deal found 5/9![Delta logo]()
$447
Last-minute flights from Allentown to St. LouisDiscover last-minute flight deals from Allentown to St. Louis. Data last updated May 14, 2026 and is based on user searches.
Discover last-minute flight deals from Allentown to St. Louis. Data last updated May 14, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 5/9. 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 5/176:15 pm
ABE
- STL
1 stop6h 44m
Delta
Sat 5/234:00 pm
STL
- ABE
1 stop5h 18m
Delta
Deal found 5/9![Delta logo]()
$385
This Kiwi.com deal was found by Cheapflights users on 5/9. 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 5/2412:29 pm
ABE
- STL
2 stops7h 07m
Multiple Airlines
Thu 5/288:08 pm
STL
- ABE
1 stop25h 56m
Multiple Airlines
Deal found 5/9![Multiple Airlines logo]()
$409
This Delta deal was found by Cheapflights users on 5/9. 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 5/266:15 pm
ABE
- STL
1 stop6h 44m
Delta
Sat 5/306:00 am
STL
- ABE
1 stop5h 24m
Delta
Deal found 5/9![Delta logo]()
$400
This American Airlines deal was found by Cheapflights users on 5/11. 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 5/11![American Airlines logo]()
$411
This Kiwi.com deal was found by Cheapflights users on 5/11. 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
Fri 6/124:17 pm
STL
- ABE
1 stop27h 29m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$427
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 6/87:30 am
ABE
- STL
1 stop12h 53m
Multiple Airlines
Fri 6/124:17 pm
STL
- ABE
1 stop27h 29m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$405
This Delta deal was found by Cheapflights users on 5/13. 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 6/166:10 pm
ABE
- STL
1 stop5h 08m
Delta
Wed 6/176:00 am
STL
- ABE
1 stop5h 27m
Delta
Deal found 5/13![Delta logo]()
$297
This Kiwi.com deal was found by Cheapflights users on 5/10. 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.
Tue 6/1610:00 am
ABE
- STL
1 stop14h 49m
Multiple Airlines
Mon 6/225:06 pm
STL
- ABE
2 stops21h 51m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$407
This American Airlines deal was found by Cheapflights users on 5/13. 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 6/185:46 pm
ABE
- STL
1 stop6h 58m
American Airlines
Wed 6/245:03 pm
STL
- ABE
1 stop5h 16m
American Airlines
Deal found 5/13![American Airlines logo]()
$418
This Delta deal was found by Cheapflights users on 5/13. 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 6/266:10 pm
ABE
- STL
1 stop6h 46m
Delta
Tue 6/306:00 am
STL
- ABE
1 stop5h 27m
Delta
Deal found 5/13![Delta logo]()
$310
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 May 14, 2026.
Search for one-way flight options from Allentown to St. Louis. Find affordable one-way fares based on user searches. Data last updated May 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 5/3112:29 pm
ABE
- STL
2 stops7h 07m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 5/10. 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 7/43:07 pm
ABE
- STL
3 stops28h 29m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 5/14. 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.
Thu 6/258:00 am
ABE
- STL
1 stop16h 49m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$240
This United Airlines deal was found by Cheapflights users on 5/10. 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 7/45:41 pm
ABE
- STL
1 stop4h 45m
United Airlines
Deal found 5/10![United Airlines logo]()
$242
This Delta deal was found by Cheapflights users on 5/11. 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 6/266:10 pm
ABE
- STL
1 stop5h 08m
Delta
Deal found 5/11![Delta logo]()
$250
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 May 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $297 (Delta) |
One-way from | $145 (Kiwi.com) |
Popular in | December |
Cheapest in | September |
Average price | $509 |
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 May 14, 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
Quickest round-trip
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Tue 6/16
6:10 pm-10:18 pm
1 stop5h 08m
Lambert-St Louis
Wed 6/17
6:00 am-12:27 pm
1 stop5h 27m
$297
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Sat 9/12
6:30 am-12:53 pm
1 stop7h 23m
Lambert-St Louis
Fri 9/18
3:42 pm-10:56 pm
1 stop6h 14m
$333
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Tue 9/8
5:40 pm-11:37 pm
1 stop6h 57m
Lambert-St Louis
Sat 9/19
6:00 am-12:08 pm
1 stop5h 08m
$333
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Fri 9/11
5:40 pm-11:37 pm
1 stop6h 57m
Lambert-St Louis
Thu 9/17
3:42 pm-10:56 pm
1 stop6h 14m
$333
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Fri 6/26
6:10 pm-11:56 pm
1 stop6h 46m
Lambert-St Louis
Tue 6/30
6:00 am-12:27 pm
1 stop5h 27m
$333
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Fri 10/2
1:00 pm-6:02 pm
1 stop6h 02m
Lambert-St Louis
Sun 10/4
3:42 pm-10:56 pm
1 stop6h 14m
$390
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Sat 6/27
6:15 am-12:11 pm
1 stop6h 56m
Lambert-St Louis
Tue 6/30
1:13 pm-9:07 pm
1 stop6h 54m
$432
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Thu 9/10
1:00 pm-6:02 pm
1 stop6h 02m
Lambert-St Louis
Sun 9/13
6:00 am-12:08 pm
1 stop5h 08m
$433
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Tue 6/9
6:00 am-2:02 pm
1 stop9h 02m
Lambert-St Louis
Sun 6/14
5:03 pm-11:19 pm
1 stop5h 16m
$437
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Mon 5/25
6:15 pm-11:59 pm
1 stop6h 44m
Lambert-St Louis
Sat 5/30
6:00 am-12:24 pm
1 stop5h 24m
$447
Showing 1-10 of 20 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 May.
| 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
What is the cheapest month to book a flight from Allentown to St. Louis?
Currently, September is the cheapest month in which you can book a flight from Allentown to St. Louis (average of $282). Flying from Allentown to St. Louis in December is currently the most expensive (average of $518). 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 May 14, 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.
Boarding
8.1
Crew
8.5
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Crew
8.5
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Crew
8.5
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Crew
8.5
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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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Allentown and St. Louis flights
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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 May 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$228 | Average$298 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$273 | Average$394 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$312 | Average$426 | FlexibilityNo cancel fee | On-time69% |