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Cheap flights from Knoxville to Allentown from $249

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to Allentown departing on 2/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

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Delta Logo
5:30 am - 12:07 pmTYS-ABE
6h 37m1 stop
Delta Logo
5:58 pm - 11:50 pmABE-TYS
5h 52m1 stop
$249Delta
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Wed, Feb 18 - Sat, Feb 21
Allegiant Air Logo
5:34 pm - 10:24 amTYS-ABE
16h 50m1 stop
Allegiant Air Logo
6:49 pm - 6:59 pmABE-TYS
24h 10m1 stop
$255Allegiant Air
Find Deal
Mon, Dec 8 - Thu, Dec 11
Allegiant Air Logo
5:34 pm - 10:24 amTYS-ABE
16h 50m1 stop
Allegiant Air Logo
3:09 pm - 10:12 pmABE-TYS
7h 03m1 stop
$262Allegiant Air
Find Deal
Mon, Dec 8 - Fri, Dec 12
Delta Logo
3:57 pm - 10:11 pmTYS-ABE
6h 14m1 stop
Delta Logo
12:54 pm - 8:10 pmABE-TYS
7h 16m1 stop
$264Delta
Find Deal
Tue, Dec 9 - Sat, Dec 13
Allegiant Air Logo
5:34 pm - 10:24 amTYS-ABE
16h 50m1 stop
Allegiant Air Logo
6:57 pm - 12:32 pmABE-TYS
17h 35m1 stop
$267Allegiant Air
Find Deal
Mon, Dec 8 - Wed, Dec 10
Multiple Airlines Logo
5:34 pm - 10:24 amTYS-ABE
16h 50m1 stop
Multiple Airlines Logo
2:37 pm - 8:33 amABE-TYS
17h 56m2 stops
$296Multiple Airlines
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Mon, Dec 8 - Thu, Dec 11
Multiple Airlines Logo
8:32 pm - 3:19 pmTYS-ABE
18h 47m1 stop
Multiple Airlines Logo
2:37 pm - 8:33 amABE-TYS
17h 56m2 stops
$341Multiple Airlines
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Sat, Dec 6 - Thu, Dec 11
United Airlines Logo
7:05 am - 11:52 amTYS-ABE
28h 47m2 stops
United Airlines Logo
5:22 pm - 10:13 amABE-TYS
16h 51m1 stop
$547United Airlines
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Tue, Dec 9 - Sat, Dec 13
American Airlines Logo
8:05 am - 1:18 pmTYS-ABE
5h 13m1 stop
American Airlines Logo
4:30 pm - 10:55 pmABE-TYS
6h 25m1 stop
$937American Airlines
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Tue, Dec 9 - Tue, Dec 9
United Airlines Logo
9:10 am - 11:52 amTYS-ABE
26h 42m2 stops
United Airlines Logo
5:22 pm - 7:54 pmABE-TYS
26h 32m2 stops
$944United Airlines
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Mon, Dec 8 - Wed, Dec 10

Delta flights from Knoxville to Allentown

Our best Delta deals on Knoxville to Allentown flight tickets
Delta
Feb 18
TYS5:30 amKnoxville McGhee Tyson
6h 37m
1 stop
ABE12:07 pmAllentown-Bethlehem
Feb 21
ABE5:58 pmAllentown-Bethlehem
5h 52m
1 stop
TYS11:50 pmKnoxville McGhee Tyson
$249
Find similar
Delta
Dec 9
TYS3:57 pmKnoxville McGhee Tyson
6h 14m
1 stop
ABE10:11 pmAllentown-Bethlehem
Dec 13
ABE12:54 pmAllentown-Bethlehem
7h 16m
1 stop
TYS8:10 pmKnoxville McGhee Tyson
$264
Find similar
Delta
Dec 6
TYS3:50 pmKnoxville McGhee Tyson
6h 21m
1 stop
ABE10:11 pmAllentown-Bethlehem
Dec 9
ABE6:25 amAllentown-Bethlehem
7h 19m
1 stop
TYS1:44 pmKnoxville McGhee Tyson
$294
Find similar

United Airlines flights from Knoxville to Allentown

Our best United Airlines deals on Knoxville to Allentown flight tickets
United Airlines
Nov 7
TYS6:45 amKnoxville McGhee Tyson
5h 03m
1 stop
ABE11:48 amAllentown-Bethlehem
Nov 9
ABE5:22 pmAllentown-Bethlehem
5h 33m
1 stop
TYS10:55 pmKnoxville McGhee Tyson
$369
Find similar
United Airlines
Dec 9
TYS7:05 amKnoxville McGhee Tyson
28h 47m
2 stops
ABE11:52 amAllentown-Bethlehem
Dec 13
ABE5:22 pmAllentown-Bethlehem
16h 51m
1 stop
TYS10:13 amKnoxville McGhee Tyson
$547
Find similar
United Airlines
Dec 8
TYS9:10 amKnoxville McGhee Tyson
26h 42m
2 stops
ABE11:52 amAllentown-Bethlehem
Dec 10
ABE5:22 pmAllentown-Bethlehem
26h 32m
2 stops
TYS7:54 pmKnoxville McGhee Tyson
$944
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated November 6, 2025.
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

KnoxvilleAllentown

TYS - ABE

TYSABE

Knoxville McGhee Tyson

Wed 2/18

5:30 am-12:07 pm

1 stop6h 37m

Allentown-Bethlehem

Sat 2/21

5:58 pm-11:50 pm

1 stop5h 52m

$249

KnoxvilleAllentown

TYS - ABE

TYSABE

Knoxville McGhee Tyson

Mon 12/8

5:34 pm-10:24 am

1 stop16h 50m

Allentown-Bethlehem

Thu 12/11

6:49 pm-6:59 pm

1 stop24h 10m

$255

KnoxvilleAllentown

TYS - ABE

TYSABE

Knoxville McGhee Tyson

Mon 12/8

5:34 pm-10:24 am

1 stop16h 50m

Allentown-Bethlehem

Fri 12/12

3:09 pm-10:12 pm

1 stop7h 03m

$262

KnoxvilleAllentown

TYS - ABE

TYSABE

Knoxville McGhee Tyson

Tue 12/9

3:57 pm-10:11 pm

1 stop6h 14m

Allentown-Bethlehem

Sat 12/13

12:54 pm-8:10 pm

1 stop7h 16m

$264

KnoxvilleAllentown

TYS - ABE

TYSABE

Knoxville McGhee Tyson

Mon 12/8

5:34 pm-10:24 am

1 stop16h 50m

Allentown-Bethlehem

Wed 12/10

6:57 pm-12:32 pm

1 stop17h 35m

$267

KnoxvilleAllentown

TYS - ABE

TYSABE

Knoxville McGhee Tyson

Mon 12/8

5:34 pm-10:24 am

1 stop16h 50m

Allentown-Bethlehem

Thu 12/11

2:37 pm-8:33 am

2 stops17h 56m

$296

KnoxvilleAllentown

TYS - ABE

TYSABE

Knoxville McGhee Tyson

Sat 12/6

8:32 pm-3:19 pm

1 stop18h 47m

Allentown-Bethlehem

Thu 12/11

2:37 pm-8:33 am

2 stops17h 56m

$341

KnoxvilleAllentown

TYS - ABE

TYSABE

Knoxville McGhee Tyson

Tue 12/9

7:05 am-11:52 am

2 stops28h 47m

Allentown-Bethlehem

Sat 12/13

5:22 pm-10:13 am

1 stop16h 51m

$547

KnoxvilleAllentown

TYS - ABE

TYSABE

Knoxville McGhee Tyson

Tue 12/9

8:05 am-1:18 pm

1 stop5h 13m

Allentown-Bethlehem

Tue 12/9

4:30 pm-10:55 pm

1 stop6h 25m

$937

KnoxvilleAllentown

TYS - ABE

TYSABE

Knoxville McGhee Tyson

Mon 12/8

9:10 am-11:52 am

2 stops26h 42m

Allentown-Bethlehem

Wed 12/10

5:22 pm-7:54 pm

2 stops26h 32m

$944

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Allentown from

How to get the cheapest flight ticket from Knoxville to Allentown

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Allentown?

The cheapest day to depart from Knoxville to Allentown is on a Tuesday when prices can be found for as low as $210. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Allentown on Thursday is $428.

What is the cheapest time of day to depart on your flight to Allentown?

In the afternoon is the cheapest time of day to fly from Knoxville to Allentown when you can find flight prices for as low as $358. Flying to Allentown in the afternoon is an ideal time because this is during off-peak travel hours. Flights in the morning are often more expensive with an average ticket price of $361.

When to book flights from Knoxville to Allentown

Are you open to changing your travel dates? Check out the ideal times to fly from Knoxville to Allentown according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Knoxville to Allentown (TYS to ABE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Knoxville to Allentown

Direct flights

None
There are no direct flights from Knoxville to Allentown. There are no popular flight routes from Knoxville to Allentown.
Search flight deals

  • How far is Knoxville McGhee Tyson to Allentown-Bethlehem by plane?

    Knoxville McGhee Tyson and Allentown-Bethlehem are 558.6 mi apart from one another. By plane, this route typically takes 4h 32m.

  • When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Allentown-Bethlehem Airport?

    Prices for flights from Knoxville McGhee Tyson Airport to Allentown-Bethlehem Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Knoxville McGhee Tyson Airport to Allentown-Bethlehem Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Knoxville McGhee Tyson Airport to Allentown-Bethlehem Airport.

  • What documentation or ID do you need to fly to Allentown-Bethlehem Airport?

    The necessary travel and health documents for your Allentown-Bethlehem Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Allentown?

Book flights to Allentown if you plan to visit one of these locations
Lehighton

Why use momondo?

Why should I use momondo to find a flight deal from Knoxville to Allentown?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Allentown from Knoxville.

Can I find flights from Knoxville to Allentown with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Allentown from Knoxville with this policy.

How can momondo help me find flights from Knoxville to Allentown?

momondo helps you find the best flight between Knoxville and Allentown by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Knoxville to Allentown right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Knoxville to Allentown flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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