$186+ Cheap flights from Knoxville to Allentown (TYS - 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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — ABE
Oct 14 — Oct 211
Round-trip
1 adult, Economy
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Find cheap flights from Knoxville 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 Knoxville to Allentown
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One-way
Cheapest flights from Knoxville to AllentownExplore the most affordable flight options available from Knoxville to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2026.
Explore the most affordable flight options available from Knoxville to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Sun 11/87:30 am -
2 stops39h 09m
Thu 11/123:05 pm -
1 stop6h 30m
Deal found 9/10![Multiple Airlines logo]()
$359
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Thu 10/17:03 pm -
1 stop15h 35m
Tue 10/612:00 pm -
1 stop5h 50m
Deal found 9/10![Allegiant Air logo]()
$369
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 11/91:38 pm -
1 stop9h 01m
Thu 11/123:05 pm -
1 stop6h 30m
Deal found 9/10![Allegiant Air logo]()
$380
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 10/1012:53 pm -
1 stop8h 28m
Sat 10/173:37 pm -
1 stop6h 06m
Deal found 9/10![Allegiant Air logo]()
$395
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 10/1612:49 pm -
1 stop7h 29m
Sun 10/187:32 pm -
2 stops25h 49m
Deal found 9/12![Allegiant Air logo]()
$415
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 11/92:21 pm -
2 stops24h 14m
Thu 11/123:05 pm -
1 stop6h 30m
Deal found 9/10![Multiple Airlines logo]()
$420
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 11/91:38 pm -
1 stop9h 01m
Wed 11/1110:32 am -
1 stop8h 39m
Deal found 9/10![Allegiant Air logo]()
$423
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Sun 11/87:00 am -
1 stop28h 45m
Thu 11/123:05 pm -
1 stop6h 30m
Deal found 9/10![Allegiant Air logo]()
$426
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:55 pm -
1 stop26h 42m
Wed 9/3010:00 am -
1 stop7h 51m
Deal found 9/11![Allegiant Air logo]()
$450
This Delta deal was found by Cheapflights users on 9/12. 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 10/164:57 pm -
1 stop5h 22m
Sun 10/186:39 am -
1 stop7h 01m
Deal found 9/12![Delta logo]()
$457
Best flights from Knoxville to AllentownDiscover carefully curated flight deals from Knoxville to Allentown that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 14, 2026.
Discover carefully curated flight deals from Knoxville to Allentown that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 11/91:38 pm -
1 stop9h 01m
Thu 11/123:05 pm -
1 stop6h 30m
Deal found 9/10![Allegiant Air logo]()
$380
This Delta deal was found by Cheapflights users on 9/12. 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 10/164:57 pm -
1 stop5h 22m
Sun 10/186:39 am -
1 stop7h 01m
Deal found 9/12![Delta logo]()
$457
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1010:42 am -
1 stop6h 20m
Sat 10/175:43 pm -
2 stops17h 34m
Deal found 9/10![United Airlines logo]()
$676
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/2910:43 am -
1 stop6h 13m
Sun 11/16:15 am -
1 stop27h 38m
Deal found 9/10![United Airlines logo]()
$677
Last-minute flights from Knoxville to AllentownDiscover last-minute flight deals from Knoxville to Allentown. Data last updated September 14, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Allentown. Data last updated September 14, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:13 pm -
1 stop4h 03m
Sun 9/206:04 pm -
1 stop5h 51m
Deal found 9/14![Delta logo]()
$609
This American Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:18 pm -
1 stop4h 04m
Sun 9/2011:35 am -
1 stop6h 02m
Deal found 9/11![American Airlines logo]()
$652
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:55 pm -
1 stop26h 42m
Wed 9/3010:00 am -
1 stop7h 51m
Deal found 9/11![Allegiant Air logo]()
$450
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Thu 10/17:03 pm -
1 stop15h 35m
Tue 10/612:00 pm -
1 stop5h 50m
Deal found 9/10![Allegiant Air logo]()
$369
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/93:41 pm -
1 stop23h 01m
Sun 10/117:32 pm -
1 stop12h 51m
Deal found 9/13![Allegiant Air logo]()
$590
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 10/1012:53 pm -
1 stop8h 28m
Sat 10/173:37 pm -
1 stop6h 06m
Deal found 9/10![Allegiant Air logo]()
$395
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1010:42 am -
1 stop6h 20m
Sat 10/175:43 pm -
2 stops17h 34m
Deal found 9/10![United Airlines logo]()
$676
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 10/1612:49 pm -
1 stop7h 29m
Sun 10/187:32 pm -
2 stops25h 49m
Deal found 9/12![Allegiant Air logo]()
$415
This Delta deal was found by Cheapflights users on 9/12. 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 10/164:57 pm -
1 stop5h 22m
Sun 10/186:39 am -
1 stop7h 01m
Deal found 9/12![Delta logo]()
$457
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/2910:43 am -
1 stop6h 13m
Sun 11/16:15 am -
1 stop27h 38m
Deal found 9/10![United Airlines logo]()
$677
One-way flights from Knoxville to AllentownSearch for one-way flight options from Knoxville to Allentown. Find affordable one-way fares based on user searches. Data last updated September 14, 2026.
Search for one-way flight options from Knoxville to Allentown. Find affordable one-way fares based on user searches. Data last updated September 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 10/1612:49 pm -
1 stop7h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Allegiant Air logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 10/186:40 am -
1 stop5h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Allegiant Air logo]()
$241
This KAYAK deal was found by Cheapflights users on 9/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:25 pm -
1 stop3h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Delta logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 10/189:25 am -
3 stops37h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Multiple Airlines logo]()
$363
This United Airlines deal was found by Cheapflights users on 9/12. 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.
Fri 10/165:45 am -
2 stops15h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![United Airlines logo]()
$533
Find flight deals from Knoxville to Allentown
Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) 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 September 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $359 (Kiwi.com) |
One-way from | $186 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Knoxville 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 September 14, 2026.
Use the filters below to find and compare flights from Knoxville to Allentown that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
KnoxvilleAllentown
TYS Knoxville McGhee Tyson - ABE Allentown-Bethlehem
TYSABE
Knoxville McGhee Tyson
Fri 9/25
6:25 pm-10:16 pm
1 stop3h 51m
Allentown-Bethlehem
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$338
KnoxvilleAllentown
TYS Knoxville McGhee Tyson - ABE Allentown-Bethlehem
TYSABE
Knoxville McGhee Tyson
Sun 10/18
9:25 am-10:28 pm
3 stops37h 03m
Allentown-Bethlehem
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$363
KnoxvilleAllentown
TYS Knoxville McGhee Tyson - ABE Allentown-Bethlehem
TYSABE
Knoxville McGhee Tyson
Mon 11/9
1:38 pm-10:39 pm
1 stop9h 01m
Allentown-Bethlehem
Thu 11/12
3:05 pm-9:35 pm
1 stop6h 30m
$380
KnoxvilleAllentown
TYS Knoxville McGhee Tyson - ABE Allentown-Bethlehem
TYSABE
Knoxville McGhee Tyson
Sun 10/18
6:23 pm-8:57 pm
2 stops26h 34m
Allentown-Bethlehem
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$444
KnoxvilleAllentown
TYS Knoxville McGhee Tyson - ABE Allentown-Bethlehem
TYSABE
Knoxville McGhee Tyson
Fri 10/16
4:57 pm-10:19 pm
1 stop5h 22m
Allentown-Bethlehem
Sun 10/18
6:39 am-1:40 pm
1 stop7h 01m
$457
KnoxvilleAllentown
TYS Knoxville McGhee Tyson - ABE Allentown-Bethlehem
TYSABE
Knoxville McGhee Tyson
Fri 10/16
5:45 am-9:00 pm
2 stops15h 15m
Allentown-Bethlehem
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$533
KnoxvilleAllentown
TYS Knoxville McGhee Tyson - ABE Allentown-Bethlehem
TYSABE
Knoxville McGhee Tyson
Sat 10/10
10:42 am-5:02 pm
1 stop6h 20m
Allentown-Bethlehem
Sat 10/17
5:43 pm-11:17 am
2 stops17h 34m
$676
KnoxvilleAllentown
TYS Knoxville McGhee Tyson - ABE Allentown-Bethlehem
TYSABE
Knoxville McGhee Tyson
Thu 10/29
10:43 am-4:56 pm
1 stop6h 13m
Allentown-Bethlehem
Sun 11/1
6:15 am-9:53 am
1 stop27h 38m
$677
Sorted by cheapest first
Compare providers for flights from Knoxville 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 Knoxville to Allentown in September.
| 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 Knoxville-Allentown flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Knoxville-Allentown flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Knoxville-Allentown flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Knoxville-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 Knoxville-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 Knoxville to Allentown
Have a flexible travel schedule? Discover the best time to fly to Allentown from Knoxville with our price prediction graph.
TYS-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.
Related info for your journey
Find useful and relevant information for your journey from Knoxville 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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