$160+ 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
Apr 10 — Apr 171
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Allentown with Cheapflights
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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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Best
Last-minute
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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 March 11, 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 March 11, 2026.
This Delta deal was found by Cheapflights users on 3/9. 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.
Wed 4/1511:42 am
STL
- ABE
1 stop4h 37m
Delta
Tue 4/215:59 pm
ABE
- STL
1 stop6h 37m
Delta
Deal found 3/9![Delta logo]()
$313
This Delta deal was found by Cheapflights users on 3/10. 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 7/223:42 pm
STL
- ABE
1 stop6h 14m
Delta
Sat 7/251:00 pm
ABE
- STL
1 stop6h 02m
Delta
Deal found 3/10![Delta logo]()
$333
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Wed 4/154:59 pm
STL
- ABE
1 stop20h 57m
Multiple Airlines
Mon 4/201:41 pm
ABE
- STL
2 stops42h 09m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$344
This Delta deal was found by Cheapflights users on 3/7. 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 4/26:00 am
STL
- ABE
1 stop5h 16m
Delta
Sun 4/56:32 am
ABE
- STL
1 stop5h 37m
Delta
Deal found 3/7![Delta logo]()
$346
This Delta deal was found by Cheapflights users on 3/9. 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.
Fri 4/174:41 pm
STL
- ABE
1 stop5h 19m
Delta
Tue 4/215:59 pm
ABE
- STL
1 stop6h 37m
Delta
Deal found 3/9![Delta logo]()
$352
This Delta deal was found by Cheapflights users on 3/6. 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 4/219:59 am
STL
- ABE
1 stop6h 20m
Delta
Fri 4/245:59 pm
ABE
- STL
1 stop6h 37m
Delta
Deal found 3/6![Delta logo]()
$355
This Delta deal was found by Cheapflights users on 3/10. 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 3/315:21 pm
STL
- ABE
1 stop4h 35m
Delta
Fri 4/35:58 pm
ABE
- STL
1 stop7h 00m
Delta
Deal found 3/10![Delta logo]()
$375
This United Airlines deal was found by Cheapflights users on 3/10. 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.
Thu 7/236:00 am
STL
- ABE
1 stop6h 48m
United Airlines
Tue 7/282:23 pm
ABE
- STL
1 stop7h 53m
United Airlines
Deal found 3/10![United Airlines logo]()
$384
This Delta deal was found by Cheapflights users on 3/10. 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 7/243:42 pm
STL
- ABE
1 stop6h 14m
Delta
Sat 7/251:00 pm
ABE
- STL
1 stop6h 02m
Delta
Deal found 3/10![Delta logo]()
$388
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 March 11, 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 March 11, 2026.
This Delta deal was found by Cheapflights users on 3/10. 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 7/116:00 am
STL
- ABE
1 stop5h 10m
Delta
Tue 7/146:30 am
ABE
- STL
1 stop5h 15m
Delta
Deal found 3/10![Delta logo]()
$333
This United Airlines deal was found by Cheapflights users on 3/7. 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 4/89:10 am
STL
- ABE
1 stop6h 53m
United Airlines
Sat 4/115:43 pm
ABE
- STL
1 stop5h 09m
United Airlines
Deal found 3/7![United Airlines logo]()
$409
This Delta deal was found by Cheapflights users on 3/9. 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.
Fri 4/174:41 pm
STL
- ABE
1 stop5h 19m
Delta
Tue 4/215:59 pm
ABE
- STL
1 stop6h 37m
Delta
Deal found 3/9![Delta logo]()
$352
This Delta deal was found by Cheapflights users on 3/6. 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 4/219:59 am
STL
- ABE
1 stop6h 20m
Delta
Fri 4/245:59 pm
ABE
- STL
1 stop6h 37m
Delta
Deal found 3/6![Delta logo]()
$355
This United Airlines deal was found by Cheapflights users on 3/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/2511:25 am
STL
- ABE
1 stop4h 26m
United Airlines
Sun 3/295:38 pm
ABE
- STL
1 stop4h 30m
United Airlines
Deal found 3/9![United Airlines logo]()
$414
This Delta deal was found by Cheapflights users on 3/9. 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.
Wed 4/154:41 pm
STL
- ABE
1 stop5h 19m
Delta
Tue 4/215:59 pm
ABE
- STL
2 stops21h 30m
Delta
Deal found 3/9![Delta logo]()
$381
This Delta deal was found by Cheapflights users on 3/10. 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 7/236:00 am
STL
- ABE
1 stop5h 10m
Delta
Sat 7/251:00 pm
ABE
- STL
1 stop6h 02m
Delta
Deal found 3/10![Delta logo]()
$388
This Delta deal was found by Cheapflights users on 3/6. 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 7/153:42 pm
STL
- ABE
1 stop6h 14m
Delta
Mon 7/206:30 am
ABE
- STL
1 stop7h 24m
Delta
Deal found 3/6![Delta logo]()
$405
This Delta deal was found by Cheapflights users on 3/8. 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 4/26:00 am
STL
- ABE
1 stop5h 16m
Delta
Mon 4/65:58 pm
ABE
- STL
1 stop7h 00m
Delta
Deal found 3/8![Delta logo]()
$406
This Delta deal was found by Cheapflights users on 3/8. 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 4/34:21 pm
STL
- ABE
1 stop5h 31m
Delta
Mon 4/65:58 pm
ABE
- STL
1 stop7h 00m
Delta
Deal found 3/8![Delta logo]()
$406
Last-minute flights from St. Louis to AllentownDiscover last-minute flight deals from St. Louis to Allentown. Data last updated March 11, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Allentown. Data last updated March 11, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 3/10. 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 3/315:21 pm
STL
- ABE
1 stop4h 35m
Delta
Fri 4/35:58 pm
ABE
- STL
1 stop7h 00m
Delta
Deal found 3/10![Delta logo]()
$375
This Delta deal was found by Cheapflights users on 3/7. 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 4/26:00 am
STL
- ABE
1 stop5h 16m
Delta
Sun 4/56:32 am
ABE
- STL
1 stop5h 37m
Delta
Deal found 3/7![Delta logo]()
$346
This American Airlines deal was found by Cheapflights users on 3/9. 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.
Thu 4/26:57 pm
STL
- ABE
1 stop4h 32m
American Airlines
Sun 4/56:04 am
ABE
- STL
1 stop7h 39m
American Airlines
Deal found 3/9![American Airlines logo]()
$399
This Delta deal was found by Cheapflights users on 3/9. 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.
Wed 4/1511:42 am
STL
- ABE
1 stop4h 37m
Delta
Tue 4/215:59 pm
ABE
- STL
1 stop6h 37m
Delta
Deal found 3/9![Delta logo]()
$313
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Wed 4/154:59 pm
STL
- ABE
1 stop20h 57m
Multiple Airlines
Mon 4/201:41 pm
ABE
- STL
2 stops42h 09m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$344
This Delta deal was found by Cheapflights users on 3/9. 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.
Fri 4/174:41 pm
STL
- ABE
1 stop5h 19m
Delta
Tue 4/215:59 pm
ABE
- STL
1 stop6h 37m
Delta
Deal found 3/9![Delta logo]()
$352
This Delta deal was found by Cheapflights users on 3/9. 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 4/196:00 am
STL
- ABE
1 stop5h 12m
Delta
Tue 4/216:33 am
ABE
- STL
1 stop5h 01m
Delta
Deal found 3/9![Delta logo]()
$391
This Delta deal was found by Cheapflights users on 3/6. 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 4/219:59 am
STL
- ABE
1 stop6h 20m
Delta
Fri 4/245:59 pm
ABE
- STL
1 stop6h 37m
Delta
Deal found 3/6![Delta logo]()
$355
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 March 11, 2026.
Search for one-way flight options from St. Louis to Allentown. Find affordable one-way fares based on user searches. Data last updated March 11, 2026.
This American Airlines deal was found by Cheapflights users on 3/9. 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 4/285:53 pm
STL
- ABE
1 stop4h 35m
American Airlines
Deal found 3/9![American Airlines logo]()
$160
This Delta deal was found by Cheapflights users on 3/10. 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 4/286:00 am
STL
- ABE
1 stop5h 12m
Delta
Deal found 3/10![Delta logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 3/6. 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 5/183:02 pm
STL
- ABE
2 stops19h 25m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$187
This Delta deal was found by Cheapflights users on 3/8. 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 4/134:41 pm
STL
- ABE
1 stop5h 19m
Delta
Deal found 3/8![Delta logo]()
$190
This Delta deal was found by Cheapflights users on 3/9. 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.
Fri 6/123:42 pm
STL
- ABE
1 stop6h 14m
Delta
Deal found 3/9![Delta logo]()
$259
This American Airlines deal was found by Cheapflights users on 3/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/236:57 pm
STL
- ABE
1 stop4h 32m
American Airlines
Deal found 3/10![American Airlines logo]()
$296
This Kiwi.com deal was found by Cheapflights users on 3/10. 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.
Mon 3/238:10 pm
STL
- ABE
3 stops39h 04m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$345
This United Airlines deal was found by Cheapflights users on 3/10. 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.
Tue 4/2810:09 am
STL
- ABE
2 stops29h 54m
United Airlines
Deal found 3/10![United Airlines logo]()
$479
This Kiwi.com deal was found by Cheapflights users on 3/7. 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 4/284:59 pm
STL
- ABE
3 stops50h 46m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$493
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 March 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $313 (Delta) |
One-way from | $160 (American Airlines) |
Popular in | March |
Cheapest in | September |
Average price | $610 |
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 March 11, 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
Sat 7/11
6:00 am-12:10 pm
1 stop5h 10m
Allentown-Bethlehem
Tue 7/14
6:30 am-10:45 am
1 stop5h 15m
$333
St. LouisAllentown
STL - ABE
STLABE
Lambert-St Louis
Fri 4/17
4:41 pm-11:00 pm
1 stop5h 19m
Allentown-Bethlehem
Tue 4/21
5:59 pm-11:36 pm
1 stop6h 37m
$352
St. LouisAllentown
STL - ABE
STLABE
Lambert-St Louis
Tue 4/21
9:59 am-5:19 pm
1 stop6h 20m
Allentown-Bethlehem
Fri 4/24
5:59 pm-11:36 pm
1 stop6h 37m
$355
St. LouisAllentown
STL - ABE
STLABE
Lambert-St Louis
Wed 4/15
4:41 pm-11:00 pm
1 stop5h 19m
Allentown-Bethlehem
Tue 4/21
5:59 pm-2:29 pm
2 stops21h 30m
$381
St. LouisAllentown
STL - ABE
STLABE
Lambert-St Louis
Thu 7/23
6:00 am-12:10 pm
1 stop5h 10m
Allentown-Bethlehem
Sat 7/25
1:00 pm-6:02 pm
1 stop6h 02m
$388
St. LouisAllentown
STL - ABE
STLABE
Lambert-St Louis
Wed 7/15
3:42 pm-10:56 pm
1 stop6h 14m
Allentown-Bethlehem
Mon 7/20
6:30 am-12:54 pm
1 stop7h 24m
$405
St. LouisAllentown
STL - ABE
STLABE
Lambert-St Louis
Thu 4/2
6:00 am-12:16 pm
1 stop5h 16m
Allentown-Bethlehem
Mon 4/6
5:58 pm-11:58 pm
1 stop7h 00m
$406
St. LouisAllentown
STL - ABE
STLABE
Lambert-St Louis
Fri 4/3
4:21 pm-10:52 pm
1 stop5h 31m
Allentown-Bethlehem
Mon 4/6
5:58 pm-11:58 pm
1 stop7h 00m
$406
St. LouisAllentown
STL - ABE
STLABE
Lambert-St Louis
Wed 4/8
9:10 am-5:03 pm
1 stop6h 53m
Allentown-Bethlehem
Sat 4/11
5:43 pm-9:52 pm
1 stop5h 09m
$409
Quickest round-trip
St. LouisAllentown
STL - ABE
STLABE
Lambert-St Louis
Wed 3/25
11:25 am-4:51 pm
1 stop4h 26m
Allentown-Bethlehem
Sun 3/29
5:38 pm-9:08 pm
1 stop4h 30m
$414
Showing 1-10 of 17 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 March.
| 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
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 March 11, 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.
Overall
7.9
Entertainment
7.8
Comfort
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Entertainment
7.8
Comfort
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Entertainment
7.8
Comfort
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Allentown. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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St. Louis and Allentown flights
Browse other St. Louis and Allentown flight options. Last updated on March 11, 2026.
Other flights from St. Louis
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Top 2 airlines flying from St. Louis to Allentown
Discover the top 2 airlines that operate flights from St. Louis to Allentown. 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 March 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$233 | Average$303 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$274 | Average$378 | FlexibilityNo cancel fee | On-timeN/A |