$166+ Cheap flights from St. Louis to Allentown (STL - ABE)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ABE
Nov 24 — Dec 11
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Allentown with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Allentown
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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 October 25, 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 October 25, 2026.
This American Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/75:38 pm -
1 stop5h 19m
Tue 12/85:30 am -
1 stop6h 22m
Deal found 10/21![American Airlines logo]()
$331
This Delta deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1610:06 am -
1 stop6h 07m
Sun 12/206:01 pm -
1 stop5h 03m
Deal found 10/21![Delta logo]()
$363
This Delta deal was found by Cheapflights users on 10/24. 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 11/1411:00 am -
1 stop5h 15m
Tue 11/176:00 pm -
1 stop6h 56m
Deal found 10/24![Delta logo]()
$375
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/166:20 pm -
1 stop16h 38m
Sun 12/2012:48 pm -
2 stops30h 48m
Deal found 10/21![Multiple Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/11:08 pm -
1 stop6h 54m
Sun 11/86:15 am -
1 stop5h 17m
Deal found 10/21![United Airlines logo]()
$458
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/14:26 pm -
1 stop29h 02m
Sun 11/84:31 pm -
2 stops22h 00m
Deal found 10/21![Multiple Airlines logo]()
$492
This Delta deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/510:25 am -
1 stop5h 51m
Sun 11/86:03 pm -
1 stop6h 51m
Deal found 10/23![Delta logo]()
$493
This Delta deal was found by Cheapflights users on 10/20. 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.
Sat 12/196:00 am -
1 stop5h 20m
Sat 12/266:01 pm -
1 stop5h 03m
Deal found 10/20![Delta logo]()
$534
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/51:08 pm -
1 stop6h 54m
Mon 11/95:36 pm -
1 stop5h 04m
Deal found 10/21![United Airlines logo]()
$545
This Kiwi.com deal was found by Cheapflights users on 10/20. 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.
Wed 11/251:20 pm -
1 stop7h 09m
Sun 11/299:00 am -
2 stops33h 40m
Deal found 10/20![Multiple Airlines logo]()
$576
This Delta deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/226:00 am -
1 stop5h 04m
Mon 11/236:00 pm -
1 stop6h 56m
Deal found 10/22![Delta logo]()
$588
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 October 25, 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 October 25, 2026.
This American Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/75:38 pm -
1 stop5h 19m
Tue 12/85:30 am -
1 stop6h 22m
Deal found 10/21![American Airlines logo]()
$331
This Delta deal was found by Cheapflights users on 10/20. 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 1/156:00 am -
1 stop5h 04m
Mon 1/185:40 pm -
1 stop6h 59m
Deal found 10/20![Delta logo]()
$353
This United Airlines deal was found by Cheapflights users on 10/20. 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 1/309:05 am -
1 stop6h 40m
Wed 2/35:20 pm -
1 stop5h 17m
Deal found 10/20![United Airlines logo]()
$431
This Delta deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1610:06 am -
1 stop6h 07m
Sun 12/206:01 pm -
1 stop5h 03m
Deal found 10/21![Delta logo]()
$363
This Delta deal was found by Cheapflights users on 10/24. 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 11/1411:00 am -
1 stop5h 15m
Tue 11/176:00 pm -
1 stop6h 56m
Deal found 10/24![Delta logo]()
$375
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/610:45 am -
1 stop5h 00m
Tue 2/95:20 pm -
1 stop7h 00m
Deal found 10/22![United Airlines logo]()
$454
This Delta deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/510:25 am -
1 stop5h 51m
Sun 11/86:03 pm -
1 stop6h 51m
Deal found 10/23![Delta logo]()
$493
This Delta deal was found by Cheapflights users on 10/20. 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.
Sat 12/196:00 am -
1 stop5h 20m
Sat 12/266:01 pm -
1 stop5h 03m
Deal found 10/20![Delta logo]()
$534
Last-minute flights from St. Louis to AllentownDiscover last-minute flight deals from St. Louis to Allentown. Data last updated October 25, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Allentown. Data last updated October 25, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:00 am -
1 stop5h 05m
Sun 10/256:03 pm -
1 stop6h 51m
Deal found 10/21![Delta logo]()
$770
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/11:08 pm -
1 stop6h 54m
Sun 11/86:15 am -
1 stop5h 17m
Deal found 10/21![United Airlines logo]()
$458
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/14:26 pm -
1 stop29h 02m
Sun 11/84:31 pm -
2 stops22h 00m
Deal found 10/21![Multiple Airlines logo]()
$492
This Delta deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/510:25 am -
1 stop5h 51m
Sun 11/86:03 pm -
1 stop6h 51m
Deal found 10/23![Delta logo]()
$493
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/51:08 pm -
1 stop6h 54m
Mon 11/95:36 pm -
1 stop5h 04m
Deal found 10/21![United Airlines logo]()
$545
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/64:26 pm -
1 stop21h 19m
Sun 11/86:00 am -
1 stop18h 16m
Deal found 10/22![Multiple Airlines logo]()
$656
This Delta deal was found by Cheapflights users on 10/24. 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 11/1411:00 am -
1 stop5h 15m
Tue 11/176:00 pm -
1 stop6h 56m
Deal found 10/24![Delta logo]()
$375
This United Airlines deal was found by Cheapflights users on 10/24. 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 11/148:30 am -
1 stop7h 26m
Tue 11/175:36 pm -
2 stops20h 02m
Deal found 10/24![United Airlines logo]()
$662
This Delta deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/226:00 am -
1 stop5h 04m
Mon 11/236:00 pm -
1 stop6h 56m
Deal found 10/22![Delta logo]()
$588
This Kiwi.com deal was found by Cheapflights users on 10/20. 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.
Wed 11/251:20 pm -
1 stop7h 09m
Sun 11/299:00 am -
2 stops33h 40m
Deal found 10/20![Multiple Airlines logo]()
$576
This American Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2511:14 am -
1 stop5h 38m
Sun 11/295:14 pm -
1 stop7h 44m
Deal found 10/20![American Airlines logo]()
$762
This American Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2611:13 am -
1 stop5h 39m
Sun 11/296:22 pm -
1 stop6h 39m
Deal found 10/20![American Airlines logo]()
$701
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 October 25, 2026.
Search for one-way flight options from St. Louis to Allentown. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
This Delta deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1010:06 am -
1 stop6h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Delta logo]()
$166
This Delta deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/16:00 am -
1 stop6h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Delta logo]()
$213
This Kiwi.com deal was found by Cheapflights users on 10/20. 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.
Tue 12/225:58 pm -
1 stop27h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Multiple Airlines logo]()
$235
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/16:21 pm -
2 stops16h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Multiple Airlines logo]()
$285
This Kiwi.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/109:50 am -
3 stops33h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$308
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 October 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $331 (American Airlines) |
One-way from | $166 (Delta) |
Popular in | November |
Cheapest in | January |
Average price | $357 |
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 7,457,451 searches. Data last updated October 25, 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
Quickest round-trip
St. LouisAllentown
STL Lambert-St Louis - ABE Allentown-Bethlehem
STLABE
Lambert-St Louis
Thu 12/10
10:06 am-5:13 pm
1 stop6h 07m
Allentown-Bethlehem
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$166
St. LouisAllentown
STL Lambert-St Louis - ABE Allentown-Bethlehem
STLABE
Lambert-St Louis
Fri 1/1
6:00 am-1:11 pm
1 stop6h 11m
Allentown-Bethlehem
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$213
St. LouisAllentown
STL Lambert-St Louis - ABE Allentown-Bethlehem
STLABE
Lambert-St Louis
Tue 12/22
5:58 pm-10:00 pm
1 stop27h 02m
Allentown-Bethlehem
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$235
St. LouisAllentown
STL Lambert-St Louis - ABE Allentown-Bethlehem
STLABE
Lambert-St Louis
Fri 1/1
6:21 pm-11:48 am
2 stops16h 27m
Allentown-Bethlehem
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$285
St. LouisAllentown
STL Lambert-St Louis - ABE Allentown-Bethlehem
STLABE
Lambert-St Louis
Thu 12/10
9:50 am-7:53 pm
3 stops33h 03m
Allentown-Bethlehem
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$308
St. LouisAllentown
STL Lambert-St Louis - ABE Allentown-Bethlehem
STLABE
Lambert-St Louis
Mon 12/7
5:38 pm-11:57 pm
1 stop5h 19m
Allentown-Bethlehem
Tue 12/8
5:30 am-10:52 am
1 stop6h 22m
$331
St. LouisAllentown
STL Lambert-St Louis - ABE Allentown-Bethlehem
STLABE
Lambert-St Louis
Fri 1/15
6:00 am-12:04 pm
1 stop5h 04m
Allentown-Bethlehem
Mon 1/18
5:40 pm-11:39 pm
1 stop6h 59m
$353
St. LouisAllentown
STL Lambert-St Louis - ABE Allentown-Bethlehem
STLABE
Lambert-St Louis
Wed 12/16
10:06 am-5:13 pm
1 stop6h 07m
Allentown-Bethlehem
Sun 12/20
6:01 pm-10:04 pm
1 stop5h 03m
$363
St. LouisAllentown
STL Lambert-St Louis - ABE Allentown-Bethlehem
STLABE
Lambert-St Louis
Sat 11/14
11:00 am-5:15 pm
1 stop5h 15m
Allentown-Bethlehem
Tue 11/17
6:00 pm-11:56 pm
1 stop6h 56m
$375
St. LouisAllentown
STL Lambert-St Louis - ABE Allentown-Bethlehem
STLABE
Lambert-St Louis
Sat 1/30
9:05 am-4:45 pm
1 stop6h 40m
Allentown-Bethlehem
Wed 2/3
5:20 pm-9:37 pm
1 stop5h 17m
$431
Showing 1-10 of 13 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 October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 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 October 25, 2026.
Get a feel of what it's like to fly with Delta 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.
Food
7.2
Entertainment
7.8
Boarding
8.1
Comfort
7.8
Crew
8.5
Overall
7.8
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - ATL
Food
7.2
Entertainment
7.8
Boarding
8.1
Comfort
7.8
Crew
8.5
Overall
7.8
Reviews
1 / 20
6.0
GoodEllen,Oct 2026
GRR - 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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Other flights to Allentown
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Alternative routes for St. Louis to Allentown
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Complete your trip
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St. Louis and Allentown flights
Browse other St. Louis and Allentown flight options. Last updated on October 25, 2026.
Other flights from St. Louis
Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on October 25, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from St. Louis to Allentown
Discover the top airline 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 7,457,451 searches. Data last updated October 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$274 | Average$378 | FlexibilityNo cancel fee | On-timeN/A |