$139+ 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — STL
Sep 20 — Sep 271
Round-trip
1 adult, Economy
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Find cheap flights from Allentown to St. Louis with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Allentown to St. Louis
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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 August 21, 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 August 21, 2026.
This Delta deal was found by Cheapflights users on 8/17. 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.
Mon 10/196:03 pm -
1 stop6h 51m
Mon 10/262:25 pm -
1 stop6h 54m
Deal found 8/17![Delta logo]()
$277
This Delta deal was found by Cheapflights users on 8/17. 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 10/236:03 pm -
1 stop6h 51m
Sat 10/2412:00 pm -
1 stop4h 16m
Deal found 8/17![Delta logo]()
$305
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/194:32 pm -
1 stop7h 41m
Wed 10/216:35 pm -
2 stops18h 41m
Deal found 8/17![Multiple Airlines logo]()
$310
This Delta deal was found by Cheapflights users on 8/18. 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 9/116:08 pm -
1 stop6h 34m
Mon 9/142:30 pm -
1 stop6h 46m
Deal found 8/18![Delta logo]()
$316
This Delta deal was found by Cheapflights users on 8/17. 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.
Mon 9/146:04 pm -
1 stop6h 38m
Sat 9/193:54 pm -
1 stop5h 22m
Deal found 8/17![Delta logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/102:28 pm -
1 stop27h 06m
Wed 9/162:29 pm -
2 stops30h 08m
Deal found 8/20![Multiple Airlines logo]()
$324
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/194:32 pm -
1 stop7h 41m
Thu 10/224:30 pm -
1 stop28h 58m
Deal found 8/17![Multiple Airlines logo]()
$331
This Delta deal was found by Cheapflights users on 8/20. 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 10/26:04 pm -
1 stop6h 38m
Sun 10/46:00 am -
1 stop5h 15m
Deal found 8/20![Delta logo]()
$332
This United Airlines deal was found by Cheapflights users on 8/18. 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 9/25:36 pm -
1 stop6h 23m
Sun 9/612:59 pm -
1 stop7h 01m
Deal found 8/18![United Airlines logo]()
$349
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Thu 10/812:34 pm -
1 stop11h 39m
Mon 10/126:35 pm -
2 stops18h 59m
Deal found 8/18![Multiple Airlines logo]()
$350
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 August 21, 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 August 21, 2026.
This Delta deal was found by Cheapflights users on 8/17. 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.
Wed 10/216:03 pm -
1 stop6h 51m
Mon 10/262:25 pm -
1 stop6h 54m
Deal found 8/17![Delta logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Thu 9/102:28 pm -
1 stop27h 06m
Wed 9/162:29 pm -
2 stops30h 08m
Deal found 8/18![Multiple Airlines logo]()
$338
This United Airlines deal was found by Cheapflights users on 8/18. 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 9/25:36 pm -
1 stop6h 23m
Sun 9/612:59 pm -
1 stop7h 01m
Deal found 8/18![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 8/20. 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.
Thu 9/106:08 pm -
1 stop6h 34m
Wed 9/1610:05 am -
1 stop6h 16m
Deal found 8/20![Delta logo]()
$277
This Delta deal was found by Cheapflights users on 8/19. 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 9/196:28 am -
1 stop7h 04m
Mon 9/214:59 pm -
1 stop4h 17m
Deal found 8/19![Delta logo]()
$277
This Delta deal was found by Cheapflights users on 8/19. 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 10/296:03 pm -
1 stop6h 51m
Sun 11/112:00 pm -
1 stop4h 16m
Deal found 8/19![Delta logo]()
$305
This Delta deal was found by Cheapflights users on 8/17. 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 10/236:03 pm -
1 stop6h 51m
Tue 10/272:25 pm -
1 stop6h 54m
Deal found 8/17![Delta logo]()
$305
This Delta deal was found by Cheapflights users on 8/17. 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 10/236:03 pm -
1 stop6h 51m
Sat 10/2412:00 pm -
1 stop4h 16m
Deal found 8/17![Delta logo]()
$305
This Delta deal was found by Cheapflights users on 8/17. 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 10/246:39 am -
1 stop5h 12m
Mon 10/262:25 pm -
1 stop6h 54m
Deal found 8/17![Delta logo]()
$358
This Delta deal was found by Cheapflights users on 8/18. 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 9/46:09 pm -
1 stop6h 49m
Mon 9/76:00 am -
1 stop5h 28m
Deal found 8/18![Delta logo]()
$365
This Delta deal was found by Cheapflights users on 8/19. 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 10/236:03 pm -
1 stop6h 51m
Sun 10/256:00 am -
1 stop5h 05m
Deal found 8/19![Delta logo]()
$379
Last-minute flights from Allentown to St. LouisDiscover last-minute flight deals from Allentown to St. Louis. Data last updated August 21, 2026 and is based on user searches.
Discover last-minute flight deals from Allentown to St. Louis. Data last updated August 21, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 8/18. 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.
Thu 8/206:16 am -
1 stop6h 30m
Mon 8/243:39 pm -
1 stop5h 44m
Deal found 8/18![Delta logo]()
$459
This Delta deal was found by Cheapflights users on 8/17. 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.
Thu 8/276:16 am -
1 stop4h 38m
Sun 8/306:00 am -
1 stop5h 28m
Deal found 8/17![Delta logo]()
$427
This Delta deal was found by Cheapflights users on 8/18. 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 8/286:04 pm -
1 stop6h 54m
Sun 9/67:00 am -
1 stop4h 28m
Deal found 8/18![Delta logo]()
$396
This United Airlines deal was found by Cheapflights users on 8/18. 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 9/25:36 pm -
1 stop6h 23m
Sun 9/612:59 pm -
1 stop7h 01m
Deal found 8/18![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 8/18. 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 9/46:09 pm -
1 stop6h 49m
Mon 9/76:00 am -
1 stop5h 28m
Deal found 8/18![Delta logo]()
$365
This Delta deal was found by Cheapflights users on 8/20. 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.
Thu 9/106:08 pm -
1 stop6h 34m
Wed 9/1610:05 am -
1 stop6h 16m
Deal found 8/20![Delta logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/102:28 pm -
1 stop27h 06m
Wed 9/162:29 pm -
2 stops30h 08m
Deal found 8/20![Multiple Airlines logo]()
$324
This Delta deal was found by Cheapflights users on 8/18. 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 9/116:08 pm -
1 stop6h 34m
Mon 9/142:30 pm -
1 stop6h 46m
Deal found 8/18![Delta logo]()
$316
This Delta deal was found by Cheapflights users on 8/19. 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 9/126:28 am -
1 stop7h 04m
Sun 9/136:00 am -
1 stop5h 15m
Deal found 8/19![Delta logo]()
$305
This Delta deal was found by Cheapflights users on 8/17. 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.
Mon 9/146:04 pm -
1 stop6h 38m
Sat 9/193:54 pm -
1 stop5h 22m
Deal found 8/17![Delta logo]()
$321
This Delta deal was found by Cheapflights users on 8/17. 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.
Mon 9/146:04 pm -
1 stop6h 38m
Thu 9/1710:05 am -
1 stop6h 14m
Deal found 8/17![Delta logo]()
$449
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 August 21, 2026.
Search for one-way flight options from Allentown to St. Louis. Find affordable one-way fares based on user searches. Data last updated August 21, 2026.
This Delta deal was found by Cheapflights users on 8/16. 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.
Wed 9/166:08 pm -
1 stop6h 34m
Deal found 8/16![Delta logo]()
$139
This Delta deal was found by Cheapflights users on 8/16. 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.
Tue 9/2212:56 pm -
1 stop5h 44m
Deal found 8/16![Delta logo]()
$220
This Delta deal was found by Cheapflights users on 8/16. 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 9/176:25 am -
1 stop5h 30m
Deal found 8/16![Delta logo]()
$320
This United Airlines deal was found by Cheapflights users on 8/20. 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.
Mon 2/155:36 pm -
1 stop4h 37m
Deal found 8/20![United Airlines logo]()
$493
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 August 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $277 (Delta) |
One-way from | $139 (Delta) |
Popular in | December |
Cheapest in | September |
Average price | $374 |
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 7,457,451 searches. Data last updated August 21, 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 Allentown-Bethlehem - STL Lambert-St Louis
ABESTL
Allentown-Bethlehem
Wed 10/21
6:03 pm-11:54 pm
1 stop6h 51m
Lambert-St Louis
Mon 10/26
2:25 pm-10:19 pm
1 stop6h 54m
$277
AllentownSt. Louis
ABE Allentown-Bethlehem - STL Lambert-St Louis
ABESTL
Allentown-Bethlehem
Thu 9/10
6:08 pm-11:42 pm
1 stop6h 34m
Lambert-St Louis
Wed 9/16
10:05 am-5:21 pm
1 stop6h 16m
$277
AllentownSt. Louis
ABE Allentown-Bethlehem - STL Lambert-St Louis
ABESTL
Allentown-Bethlehem
Sat 9/19
6:28 am-12:32 pm
1 stop7h 04m
Lambert-St Louis
Mon 9/21
4:59 pm-10:16 pm
1 stop4h 17m
$277
Quickest round-trip
AllentownSt. Louis
ABE Allentown-Bethlehem - STL Lambert-St Louis
ABESTL
Allentown-Bethlehem
Thu 10/29
6:03 pm-11:54 pm
1 stop6h 51m
Lambert-St Louis
Sun 11/1
12:00 pm-5:16 pm
1 stop4h 16m
$305
AllentownSt. Louis
ABE Allentown-Bethlehem - STL Lambert-St Louis
ABESTL
Allentown-Bethlehem
Fri 10/23
6:03 pm-11:54 pm
1 stop6h 51m
Lambert-St Louis
Tue 10/27
2:25 pm-10:19 pm
1 stop6h 54m
$305
AllentownSt. Louis
ABE Allentown-Bethlehem - STL Lambert-St Louis
ABESTL
Allentown-Bethlehem
Fri 10/23
6:03 pm-11:54 pm
1 stop6h 51m
Lambert-St Louis
Sat 10/24
12:00 pm-5:16 pm
1 stop4h 16m
$305
AllentownSt. Louis
ABE Allentown-Bethlehem - STL Lambert-St Louis
ABESTL
Allentown-Bethlehem
Thu 9/10
2:28 pm-4:34 pm
1 stop27h 06m
Lambert-St Louis
Wed 9/16
2:29 pm-9:37 pm
2 stops30h 08m
$338
AllentownSt. Louis
ABE Allentown-Bethlehem - STL Lambert-St Louis
ABESTL
Allentown-Bethlehem
Wed 9/2
5:36 pm-10:59 pm
1 stop6h 23m
Lambert-St Louis
Sun 9/6
12:59 pm-9:00 pm
1 stop7h 01m
$349
AllentownSt. Louis
ABE Allentown-Bethlehem - STL Lambert-St Louis
ABESTL
Allentown-Bethlehem
Sat 10/24
6:39 am-10:51 am
1 stop5h 12m
Lambert-St Louis
Mon 10/26
2:25 pm-10:19 pm
1 stop6h 54m
$358
AllentownSt. Louis
ABE Allentown-Bethlehem - STL Lambert-St Louis
ABESTL
Allentown-Bethlehem
Fri 9/4
6:09 pm-11:58 pm
1 stop6h 49m
Lambert-St Louis
Mon 9/7
6:00 am-12:28 pm
1 stop5h 28m
$365
Showing 1-10 of 13 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 August.
| 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 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 $298). Flying from Allentown to St. Louis in December is currently the most expensive (average of $622). 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?
Airfare is typical for this route at the moment.
Allentown to St. Louis flights typically cost between $276 and $569 in October.The cheapest round-trip price found within the last 5 days was $277 on Delta (Oct 19-Oct 27).
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 August 21, 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.
Entertainment
7.8
Boarding
8.1
Overall
7.8
Food
7.2
Crew
8.5
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentSalvador,Aug 2026
PHL - DTW
Entertainment
7.8
Boarding
8.1
Overall
7.8
Food
7.2
Crew
8.5
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentSalvador,Aug 2026
PHL - DTW
Entertainment
7.8
Boarding
8.1
Overall
7.8
Food
7.2
Crew
8.5
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentSalvador,Aug 2026
PHL - DTW
Entertainment
7.8
Boarding
8.1
Overall
7.8
Food
7.2
Crew
8.5
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentSalvador,Aug 2026
PHL - DTW
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
Fairview Heights
O'Fallon
Fenton
Swansea
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
Farmington
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Allentown and St. Louis flights
Browse other Allentown and St. Louis flight options. Last updated on August 21, 2026.
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Other flights to St. Louis
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 21, 2026.
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 7,457,451 searches. Data last updated August 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$228 | Average$374 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$282 | Average$394 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$312 | Average$437 | FlexibilityNo cancel fee | On-time69% |