$149+ 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 7/28. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — STL
Jul 11 — Jul 181
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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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Allentown to St. Louis
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Best
Last-minute
One-way
Cheapest flights from Allentown to St. LouisExplore the most affordable flight options available from Allentown to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 11, 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 June 11, 2026.
This Delta deal was found by Cheapflights users on 6/10. 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 6/301:12 pm
ABE
- STL
1 stop5h 55m
Delta
Sun 7/56:00 am
STL
- ABE
1 stop5h 27m
Delta
Deal found 6/10![Delta logo]()
$310
This Delta deal was found by Cheapflights users on 6/8. 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.
Sat 11/145:40 pm
ABE
- STL
1 stop6h 59m
Delta
Mon 11/166:00 am
STL
- ABE
1 stop5h 04m
Delta
Deal found 6/8![Delta logo]()
$319
This Delta deal was found by Cheapflights users on 6/9. 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 6/236:05 pm
ABE
- STL
1 stop5h 13m
Delta
Tue 6/306:00 am
STL
- ABE
1 stop5h 27m
Delta
Deal found 6/9![Delta logo]()
$326
This Delta deal was found by Cheapflights users on 6/8. 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.
Sat 6/276:09 pm
ABE
- STL
1 stop6h 37m
Delta
Fri 7/33:57 pm
STL
- ABE
1 stop6h 11m
Delta
Deal found 6/8![Delta logo]()
$334
This Delta deal was found by Cheapflights users on 6/10. 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 6/106:10 pm
ABE
- STL
1 stop6h 46m
Delta
Wed 7/16:00 am
STL
- ABE
1 stop5h 27m
Delta
Deal found 6/10![Delta logo]()
$373
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Sat 8/159:36 am
ABE
- STL
1 stop4h 19m
American Airlines
Thu 8/209:32 am
STL
- ABE
1 stop6h 10m
American Airlines
Deal found 6/10![American Airlines logo]()
$375
This Delta deal was found by Cheapflights users on 6/10. 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 6/106:10 pm
ABE
- STL
1 stop6h 46m
Delta
Fri 7/33:57 pm
STL
- ABE
1 stop6h 11m
Delta
Deal found 6/10![Delta logo]()
$386
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 June 11, 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 June 11, 2026.
This Delta deal was found by Cheapflights users on 6/10. 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 6/301:12 pm
ABE
- STL
1 stop5h 55m
Delta
Sun 7/56:00 am
STL
- ABE
1 stop5h 27m
Delta
Deal found 6/10![Delta logo]()
$310
This Kiwi.com deal was found by Cheapflights users on 6/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/98:00 am
ABE
- STL
1 stop16h 59m
Multiple Airlines
Sun 7/126:34 pm
STL
- ABE
2 stops27h 36m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$471
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Wed 9/25:36 pm
ABE
- STL
1 stop5h 24m
United Airlines
Sat 9/512:59 pm
STL
- ABE
1 stop7h 01m
United Airlines
Deal found 6/10![United Airlines logo]()
$500
This Delta deal was found by Cheapflights users on 6/7. 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.
Sat 11/145:40 pm
ABE
- STL
1 stop6h 59m
Delta
Mon 11/169:00 am
STL
- ABE
1 stop7h 12m
Delta
Deal found 6/7![Delta logo]()
$319
This Delta deal was found by Cheapflights users on 6/8. 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.
Sat 6/276:09 pm
ABE
- STL
1 stop6h 37m
Delta
Fri 7/33:57 pm
STL
- ABE
1 stop6h 11m
Delta
Deal found 6/8![Delta logo]()
$334
This Delta deal was found by Cheapflights users on 6/7. 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 7/26:10 pm
ABE
- STL
1 stop5h 08m
Delta
Sun 7/56:00 am
STL
- ABE
1 stop5h 27m
Delta
Deal found 6/7![Delta logo]()
$393
This United Airlines deal was found by Cheapflights users on 6/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/265:36 pm
ABE
- STL
1 stop5h 24m
United Airlines
Sat 8/298:00 am
STL
- ABE
1 stop24h 57m
United Airlines
Deal found 6/8![United Airlines logo]()
$529
This Delta deal was found by Cheapflights users on 6/11. 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.
Sat 8/156:09 pm
ABE
- STL
1 stop6h 22m
Delta
Thu 8/2011:00 am
STL
- ABE
1 stop5h 23m
Delta
Deal found 6/11![Delta logo]()
$421
This United Airlines deal was found by Cheapflights users on 6/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/235:36 pm
ABE
- STL
1 stop4h 54m
United Airlines
Sat 6/279:15 am
STL
- ABE
1 stop6h 48m
United Airlines
Deal found 6/8![United Airlines logo]()
$563
This Delta deal was found by Cheapflights users on 6/9. 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 6/246:05 pm
ABE
- STL
1 stop5h 13m
Delta
Sun 6/286:00 am
STL
- ABE
1 stop5h 27m
Delta
Deal found 6/9![Delta logo]()
$482
This Delta deal was found by Cheapflights users on 6/6. 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.
Mon 7/136:05 pm
ABE
- STL
1 stop5h 10m
Delta
Fri 7/176:00 am
STL
- ABE
1 stop5h 22m
Delta
Deal found 6/6![Delta logo]()
$520
Last-minute flights from Allentown to St. LouisDiscover last-minute flight deals from Allentown to St. Louis. Data last updated June 11, 2026 and is based on user searches.
Discover last-minute flight deals from Allentown to St. Louis. Data last updated June 11, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/10. 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 6/106:10 pm
ABE
- STL
1 stop6h 46m
Delta
Wed 7/16:00 am
STL
- ABE
1 stop5h 27m
Delta
Deal found 6/10![Delta logo]()
$373
This Delta deal was found by Cheapflights users on 6/10. 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 6/106:10 pm
ABE
- STL
1 stop6h 46m
Delta
Thu 7/23:57 pm
STL
- ABE
1 stop6h 11m
Delta
Deal found 6/10![Delta logo]()
$386
This Delta deal was found by Cheapflights users on 6/10. 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 6/106:10 pm
ABE
- STL
1 stop6h 46m
Delta
Mon 6/296:00 am
STL
- ABE
1 stop5h 27m
Delta
Deal found 6/10![Delta logo]()
$402
This Delta deal was found by Cheapflights users on 6/9. 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.
Sat 6/206:09 pm
ABE
- STL
1 stop6h 37m
Delta
Wed 6/246:00 am
STL
- ABE
1 stop5h 27m
Delta
Deal found 6/9![Delta logo]()
$396
This Delta deal was found by Cheapflights users on 6/9. 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 6/236:05 pm
ABE
- STL
1 stop5h 13m
Delta
Tue 6/306:00 am
STL
- ABE
1 stop5h 27m
Delta
Deal found 6/9![Delta logo]()
$326
This Delta deal was found by Cheapflights users on 6/6. 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.
Sat 6/276:09 pm
ABE
- STL
1 stop6h 37m
Delta
Fri 7/33:57 pm
STL
- ABE
1 stop6h 11m
Delta
Deal found 6/6![Delta logo]()
$319
This Delta deal was found by Cheapflights users on 6/10. 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 6/301:12 pm
ABE
- STL
1 stop5h 55m
Delta
Sun 7/56:00 am
STL
- ABE
1 stop5h 27m
Delta
Deal found 6/10![Delta logo]()
$310
This Delta deal was found by Cheapflights users on 6/7. 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 7/26:10 pm
ABE
- STL
1 stop5h 08m
Delta
Sun 7/56:00 am
STL
- ABE
1 stop5h 27m
Delta
Deal found 6/7![Delta logo]()
$393
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 June 11, 2026.
Search for one-way flight options from Allentown to St. Louis. Find affordable one-way fares based on user searches. Data last updated June 11, 2026.
This Delta deal was found by Cheapflights users on 6/10. 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 7/286:05 pm
ABE
- STL
1 stop5h 10m
Delta
Deal found 6/10![Delta logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 7/134:38 pm
ABE
- STL
2 stops25h 59m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 7/1111:00 am
ABE
- STL
3 stops46h 57m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$241
This Delta deal was found by Cheapflights users on 6/7. 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.
Tue 7/76:05 pm
ABE
- STL
1 stop5h 10m
Delta
Deal found 6/7![Delta logo]()
$242
This Kiwi.com deal was found by Cheapflights users on 6/6. 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.
Tue 8/1110:19 am
ABE
- STL
3 stops56h 56m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$316
This Delta deal was found by Cheapflights users on 6/10. 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.
Mon 7/136:05 pm
ABE
- STL
1 stop6h 48m
Delta
Deal found 6/10![Delta logo]()
$328
This United Airlines deal was found by Cheapflights users on 6/7. 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.
Sun 7/126:15 am
ABE
- STL
1 stop6h 56m
United Airlines
Deal found 6/7![United Airlines logo]()
$458
This American Airlines deal was found by Cheapflights users on 6/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/119:36 am
ABE
- STL
2 stops8h 14m
American Airlines
Deal found 6/6![American Airlines logo]()
$531
This United Airlines deal was found by Cheapflights users on 6/7. 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.
Tue 7/710:35 am
ABE
- STL
2 stops14h 22m
United Airlines
Deal found 6/7![United Airlines logo]()
$561
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 June 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $310 (Delta) |
One-way from | $149 (Delta) |
Popular in | December |
Cheapest in | September |
Average price | $333 |
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 June 11, 2026.
Use the filters below to find and compare flights from Allentown to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Tue 6/30
1:12 pm-6:07 pm
1 stop5h 55m
Lambert-St Louis
Sun 7/5
6:00 am-12:27 pm
1 stop5h 27m
$310
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Sat 11/14
5:40 pm-11:39 pm
1 stop6h 59m
Lambert-St Louis
Mon 11/16
9:00 am-5:12 pm
1 stop7h 12m
$319
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Sat 6/27
6:09 pm-11:46 pm
1 stop6h 37m
Lambert-St Louis
Fri 7/3
3:57 pm-11:08 pm
1 stop6h 11m
$334
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Thu 7/2
6:10 pm-10:18 pm
1 stop5h 08m
Lambert-St Louis
Sun 7/5
6:00 am-12:27 pm
1 stop5h 27m
$393
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Sat 8/15
6:09 pm-11:31 pm
1 stop6h 22m
Lambert-St Louis
Thu 8/20
11:00 am-5:23 pm
1 stop5h 23m
$421
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Thu 7/9
8:00 am-11:59 pm
1 stop16h 59m
Lambert-St Louis
Sun 7/12
6:34 pm-11:10 pm
2 stops27h 36m
$471
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Wed 6/24
6:05 pm-10:18 pm
1 stop5h 13m
Lambert-St Louis
Sun 6/28
6:00 am-12:27 pm
1 stop5h 27m
$482
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Wed 9/2
5:36 pm-10:00 pm
1 stop5h 24m
Lambert-St Louis
Sat 9/5
12:59 pm-9:00 pm
1 stop7h 01m
$500
Quickest round-trip
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Mon 7/13
6:05 pm-10:15 pm
1 stop5h 10m
Lambert-St Louis
Fri 7/17
6:00 am-12:22 pm
1 stop5h 22m
$520
AllentownSt. Louis
ABE - STL
ABESTL
Allentown-Bethlehem
Wed 8/26
5:36 pm-10:00 pm
1 stop5h 24m
Lambert-St Louis
Sat 8/29
8:00 am-9:57 am
1 stop24h 57m
$529
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from Allentown to St. Louis
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Allentown to St. Louis in June.
| 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 $298). 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 June 11, 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.
Food
7.2
Entertainment
7.8
Comfort
7.8
Overall
7.9
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Entertainment
7.8
Comfort
7.8
Overall
7.9
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Entertainment
7.8
Comfort
7.8
Overall
7.9
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Entertainment
7.8
Comfort
7.8
Overall
7.9
Boarding
8.1
Crew
8.5
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
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
Alton
Farmington
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St. Louis flight routes
Alternative routes for Allentown to St. Louis
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Allentown and St. Louis flights
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Other flights to St. Louis
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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 June 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$228 | Average$343 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$282 | Average$390 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$312 | Average$426 | FlexibilityNo cancel fee | On-time69% |