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$180+ Cheap flights from Knoxville to Allentown (TYS - 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 3/26. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — ABE
Apr 19 — Apr 261
Sun 4/19
Sun 4/26
1 adult, Economy
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Cheap flight deals from Knoxville to Allentown

Cheapest flights from Knoxville to Allentown
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 March 20, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/318:30 am
TYS
-
ABE
1 stop12h 58m
Allegiant Air
Mon 8/38:49 pm
ABE
-
TYS
1 stop18h 41m
Allegiant Air
Deal found 3/19$329
This Kiwi.com deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:32 pm
TYS
-
ABE
1 stop22h 38m
Allegiant Air
Thu 4/232:40 pm
ABE
-
TYS
1 stop6h 34m
Allegiant Air
Deal found 3/19$365
This Kiwi.com deal was found by Cheapflights users on 3/20. 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.
Fri 4/176:20 pm
TYS
-
ABE
1 stop21h 21m
Allegiant Air
Fri 4/243:25 pm
ABE
-
TYS
1 stop6h 59m
Allegiant Air
Deal found 3/20$376
This Kiwi.com deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/31:19 pm
TYS
-
ABE
1 stop7h 21m
Allegiant Air
Thu 9/106:15 am
ABE
-
TYS
1 stop6h 14m
Allegiant Air
Deal found 3/16$382
This Kiwi.com deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1411:31 am
TYS
-
ABE
1 stop5h 32m
Allegiant Air
Thu 7/166:00 am
ABE
-
TYS
1 stop16h 24m
Allegiant Air
Deal found 3/16$402
This Delta deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/115:18 pm
TYS
-
ABE
1 stop4h 53m
Delta
Sat 4/185:59 pm
ABE
-
TYS
1 stop5h 55m
Delta
Deal found 3/18$413
This Kiwi.com deal was found by Cheapflights users on 3/15. 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 3/303:29 pm
TYS
-
ABE
1 stop18h 59m
Allegiant Air
Fri 4/31:38 pm
ABE
-
TYS
1 stop18h 58m
Allegiant Air
Deal found 3/15$418
This Kiwi.com deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/29:25 pm
TYS
-
ABE
1 stop12h 19m
Allegiant Air
Mon 4/66:28 pm
ABE
-
TYS
1 stop21h 36m
Allegiant Air
Deal found 3/17$423
This American Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/78:16 am
TYS
-
ABE
1 stop4h 01m
American Airlines
Wed 4/156:04 am
ABE
-
TYS
1 stop5h 11m
American Airlines
Deal found 3/17$445
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/106:38 pm
TYS
-
ABE
1 stop4h 14m
Delta
Tue 4/145:59 pm
ABE
-
TYS
1 stop5h 55m
Delta
Deal found 3/16$447

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 March 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$329
(Kiwi.com)

One-way from

$180
(Kiwi.com)
Provider with most accurate pricing for Knoxville McGhee Tyson-Allentown-Bethlehem flight deals.
Search Deals
Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Allentown-Bethlehem flights.
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From Knoxville McGhee Tyson to Allentown-Bethlehem
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One-way flight from Knoxville McGhee Tyson to Allentown-Bethlehem
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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 2,558,603 searches. Data last updated March 20, 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

Price

Cheapest round-trip

KnoxvilleAllentown

TYS - ABE

TYSABE

Knoxville McGhee Tyson

Tue 7/14

11:31 am-5:03 pm

1 stop5h 32m

Allentown-Bethlehem

Thu 7/16

6:00 am-10:24 pm

1 stop16h 24m

$402

KnoxvilleAllentown

TYS - ABE

TYSABE

Knoxville McGhee Tyson

Sat 4/11

5:18 pm-10:11 pm

1 stop4h 53m

Allentown-Bethlehem

Sat 4/18

5:59 pm-11:54 pm

1 stop5h 55m

$413

KnoxvilleAllentown

TYS - ABE

TYSABE

Knoxville McGhee Tyson

Tue 4/7

8:16 am-12:17 pm

1 stop4h 01m

Allentown-Bethlehem

Wed 4/15

6:04 am-11:15 am

1 stop5h 11m

$445

KnoxvilleAllentown

TYS - ABE

TYSABE

Knoxville McGhee Tyson

Fri 4/10

6:38 pm-10:52 pm

1 stop4h 14m

Allentown-Bethlehem

Tue 4/14

5:59 pm-11:54 pm

1 stop5h 55m

$447

KnoxvilleAllentown

TYS - ABE

TYSABE

Knoxville McGhee Tyson

Fri 4/3

6:38 pm-10:52 pm

1 stop4h 14m

Allentown-Bethlehem

Tue 4/7

5:58 pm-11:57 pm

1 stop5h 59m

$466

KnoxvilleAllentown

TYS - ABE

TYSABE

Knoxville McGhee Tyson

Fri 4/10

6:38 pm-10:52 pm

1 stop4h 14m

Allentown-Bethlehem

Wed 4/15

5:59 pm-11:54 pm

1 stop5h 55m

$477

KnoxvilleAllentown

TYS - ABE

TYSABE

Knoxville McGhee Tyson

Wed 8/26

6:30 am-1:42 pm

1 stop7h 12m

Allentown-Bethlehem

Sat 8/29

2:30 pm-8:48 pm

1 stop6h 18m

$485
Quickest round-trip

KnoxvilleAllentown

TYS - ABE

TYSABE

Knoxville McGhee Tyson

Fri 4/10

6:38 pm-10:52 pm

1 stop4h 14m

Allentown-Bethlehem

Thu 4/16

6:33 am-11:17 am

1 stop4h 44m

$513

KnoxvilleAllentown

TYS - ABE

TYSABE

Knoxville McGhee Tyson

Sat 5/23

11:56 am-5:28 pm

1 stop5h 32m

Allentown-Bethlehem

Sun 5/24

6:15 pm-11:56 pm

1 stop5h 41m

$513

KnoxvilleAllentown

TYS - ABE

TYSABE

Knoxville McGhee Tyson

Sat 4/11

9:40 am-9:48 am

2 stops24h 08m

Allentown-Bethlehem

Sat 4/18

5:45 pm-10:34 pm

1 stop4h 49m

$583

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/18

Showing 1-10 of 19 resultsSorted by cheapest first
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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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.
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 Knoxville to Allentown

What is the cheapest month to book a flight from Knoxville to Allentown?

Currently, July is the cheapest month in which you can book a flight from Knoxville to Allentown (average of $41). Flying from Knoxville to Allentown in December is currently the most expensive (average of $168). 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.

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.

  • How long is the flight from Knoxville to Allentown?

    A quick flight from Knoxville to Allentown can take about 4h 01m. Allegiant Air provides one of the quickest options available for as low as $445. Airlines will cover a distance of 572 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Knoxville to Allentown that include hotel bookings?

    Yes. In addition to deals on Knoxville to Allentown flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Knoxville to Allentown?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Allentown.

  • Can I find deals for business class flights from Knoxville to Allentown?

    Yes. Cheapflights offers flight deals from Knoxville to Allentown by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Knoxville to Allentown?

    Currently, July is the cheapest month in which you can book a flight from Knoxville to Allentown (average of $41). Flying from Knoxville to Allentown in December is currently the most expensive (average of $168). 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.

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