HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Allentown

$125+ 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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — ABE
Aug 17 — Aug 241
Mon 8/17
Mon 8/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

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 July 18, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/17. 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.
Fri 8/286:27 pm
TYS
-
ABE
1 stop15h 02m
Allegiant Air
Sun 8/306:00 am
ABE
-
TYS
1 stop6h 31m
Allegiant Air
Deal found 7/17$243
This Kiwi.com deal was found by Cheapflights users on 7/13. 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.
Mon 8/109:08 pm
TYS
-
ABE
1 stop12h 21m
Allegiant Air
Mon 8/178:00 am
ABE
-
TYS
1 stop10h 25m
Allegiant Air
Deal found 7/13$248
This Kiwi.com deal was found by Cheapflights users on 7/17. 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.
Fri 8/286:27 pm
TYS
-
ABE
1 stop15h 02m
Multiple Airlines
Sun 8/309:57 pm
ABE
-
TYS
2 stops21h 06m
Multiple Airlines
Deal found 7/17$293
This Kiwi.com deal was found by Cheapflights users on 7/13. 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 8/79:08 pm
TYS
-
ABE
1 stop23h 49m
Allegiant Air
Thu 8/136:22 pm
ABE
-
TYS
1 stop19h 59m
Allegiant Air
Deal found 7/13$303
This Kiwi.com deal was found by Cheapflights users on 7/13. 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.
Mon 8/101:36 pm
TYS
-
ABE
1 stop19h 53m
Multiple Airlines
Mon 8/177:30 am
ABE
-
TYS
2 stops14h 54m
Multiple Airlines
Deal found 7/13$310
This Kiwi.com deal was found by Cheapflights users on 7/13. 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 7/311:41 pm
TYS
-
ABE
1 stop19h 10m
Allegiant Air
Mon 8/38:49 pm
ABE
-
TYS
1 stop18h 41m
Allegiant Air
Deal found 7/13$355
This Kiwi.com deal was found by Cheapflights users on 7/15. 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.
Thu 8/63:56 pm
TYS
-
ABE
1 stop7h 43m
Allegiant Air
Sun 8/96:22 pm
ABE
-
TYS
1 stop19h 59m
Allegiant Air
Deal found 7/15$366
This Kiwi.com deal was found by Cheapflights users on 7/15. 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.
Fri 7/311:41 pm
TYS
-
ABE
1 stop19h 10m
Allegiant Air
Sun 8/29:48 am
ABE
-
TYS
1 stop28h 28m
Allegiant Air
Deal found 7/15$391
This Delta deal was found by Cheapflights users on 7/14. 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.
Thu 8/137:30 am
TYS
-
ABE
1 stop4h 58m
Delta
Mon 8/176:08 pm
ABE
-
TYS
1 stop5h 44m
Delta
Deal found 7/14$427
This Delta deal was found by Cheapflights users on 7/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/74:38 pm
TYS
-
ABE
1 stop5h 45m
Delta
Sun 8/96:08 pm
ABE
-
TYS
1 stop5h 44m
Delta
Deal found 7/15$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 July 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$243
(Kiwi.com)

One-way from

$125
(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.
Search Deals
From Knoxville McGhee Tyson to Allentown-Bethlehem
Search Deals
One-way flight from Knoxville McGhee Tyson to Allentown-Bethlehem
Search Deals

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 July 18, 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

Fri 8/28

6:27 pm-9:29 am

1 stop15h 02m

Allentown-Bethlehem

Sun 8/30

6:00 am-12:31 pm

1 stop6h 31m

$243

KnoxvilleAllentown

TYS - ABE

TYSABE

Knoxville McGhee Tyson

Mon 8/10

9:08 pm-9:29 am

1 stop12h 21m

Allentown-Bethlehem

Mon 8/17

8:00 am-6:25 pm

1 stop10h 25m

$248

KnoxvilleAllentown

TYS - ABE

TYSABE

Knoxville McGhee Tyson

Fri 8/7

9:08 pm-8:57 pm

1 stop23h 49m

Allentown-Bethlehem

Thu 8/13

6:22 pm-2:21 pm

1 stop19h 59m

$303

KnoxvilleAllentown

TYS - ABE

TYSABE

Knoxville McGhee Tyson

Mon 8/10

1:36 pm-9:29 am

1 stop19h 53m

Allentown-Bethlehem

Mon 8/17

7:30 am-10:24 pm

2 stops14h 54m

$310

KnoxvilleAllentown

TYS - ABE

TYSABE

Knoxville McGhee Tyson

Fri 7/31

1:41 pm-8:51 am

1 stop19h 10m

Allentown-Bethlehem

Mon 8/3

8:49 pm-3:30 pm

1 stop18h 41m

$355

KnoxvilleAllentown

TYS - ABE

TYSABE

Knoxville McGhee Tyson

Thu 8/6

3:56 pm-11:39 pm

1 stop7h 43m

Allentown-Bethlehem

Sun 8/9

12:29 pm-8:36 am

2 stops20h 07m

$393

KnoxvilleAllentown

TYS - ABE

TYSABE

Knoxville McGhee Tyson

Thu 8/13

7:30 am-12:28 pm

1 stop4h 58m

Allentown-Bethlehem

Mon 8/17

6:08 pm-11:52 pm

1 stop5h 44m

$427
Quickest round-trip

KnoxvilleAllentown

TYS - ABE

TYSABE

Knoxville McGhee Tyson

Fri 8/14

6:12 pm-10:23 pm

1 stop4h 11m

Allentown-Bethlehem

Sun 8/16

6:08 pm-11:52 pm

1 stop5h 44m

$457

KnoxvilleAllentown

TYS - ABE

TYSABE

Knoxville McGhee Tyson

Thu 11/5

7:00 am-9:56 am

1 stop26h 56m

Allentown-Bethlehem

Sun 11/8

6:25 am-1:20 pm

1 stop6h 55m

$608
Cheapest one-way

KnoxvilleAllentown

TYS - ABE

TYSABE

Knoxville McGhee Tyson

Wed 9/30

10:28 am-9:49 pm

3 stops35h 21m

$210

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/15

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

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 July.
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.

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 15h 02m. Allegiant Air provides one of the quickest options available for as low as $243. Airlines will cover a distance of 572 mi.

  • 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights