What is the cheapest airline that flies from Louisville Intl to Allentown-Bethlehem?

Allegiant Air and Delta are the most popular carriers operating from Louisville Intl to Allentown-Bethlehem

What airlines fly to Allentown?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Allentown from Louisville according to our data. United Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Allentown. Keep in mind that there are 6 different airlines that fly to Allentown on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Louisville Intl Airport to Allentown-Bethlehem Airport?

Prices for flights from Louisville Intl Airport to Allentown-Bethlehem Airport are updated daily.

How old do you have to be to fly from Louisville Intl Airport to Allentown-Bethlehem Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Allentown-Bethlehem Airport.

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

The required travel and health documents for your Allentown-Bethlehem Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Allentown-Bethlehem Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$171 Cheap Flights from Louisville to Allentown in 2026

Find the cheapest flights from Louisville to Allentown

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 12:10 pm

SDF

ABE

6h 10m

1 stop

6:05 pm - 12:14 am

ABE

SDF

6h 09m

1 stop

$378Delta

Sat, Jul 25 - Sat, Aug 1

1:02 pm - 8:49 pm

SDF

ABE

7h 47m

1 stop

8:10 am - 6:15 pm

ABE

SDF

34h 05m

2 stops

$428Multiple Airlines

Sat, Jul 25 - Sat, Aug 1

12:20 pm - 4:56 pm

SDF

ABE

4h 36m

1 stop

5:36 pm - 10:09 pm

ABE

SDF

4h 33m

1 stop

$481United Airlines

Tue, Dec 8 - Sat, Dec 12

3:18 pm - 9:41 am

SDF

ABE

18h 23m

1 stop

6:00 am - 2:33 pm

ABE

SDF

8h 33m

1 stop

$482Allegiant Air

Sun, Jul 12 - Thu, Jul 16

8:48 pm - 4:10 pm

SDF

ABE

19h 22m

2 stops

8:49 pm - 8:10 pm

ABE

SDF

23h 21m

1 stop

$564Multiple Airlines

Mon, Jul 13 - Fri, Jul 17

3:18 pm - 9:41 am

SDF

ABE

18h 23m

1 stop

12:29 pm - 7:58 pm

ABE

SDF

31h 29m

2 stops

$567Allegiant Air

Sun, Jul 12 - Thu, Jul 16

11:17 am - 5:25 pm

SDF

ABE

6h 08m

1 stop

1:08 pm - 5:49 pm

ABE

SDF

4h 41m

1 stop

$592Delta

Wed, Jul 15 - Sun, Jul 19

2:20 pm - 10:06 am

SDF

ABE

19h 46m

2 stops

5:36 pm - 10:09 pm

ABE

SDF

4h 33m

1 stop

$600United Airlines

Tue, Dec 8 - Sat, Dec 12

7:14 am - 11:27 pm

SDF

ABE

16h 13m

1 stop

6:01 am - 10:04 pm

ABE

SDF

16h 03m

1 stop

$611American Airlines

Sun, Jul 19 - Sat, Jul 25

8:06 pm - 9:23 pm

SDF

ABE

25h 17m

2 stops

12:01 pm - 8:12 am

ABE

SDF

20h 11m

1 stop

$613Multiple Airlines

Wed, Jul 15 - Sun, Jul 19

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Allegiant Air flights from Louisville to Allentown

Our best Allegiant Air deals on Louisville to Allentown flight tickets

Allegiant Air

Jul 12

SDF3:18 pmLouisville Intl

18h 23m

1 stop

ABE9:41 amAllentown-Bethlehem

Jul 16

ABE6:00 amAllentown-Bethlehem

8h 33m

1 stop

SDF2:33 pmLouisville Intl

$482

Allegiant Air

Jul 12

SDF3:18 pmLouisville Intl

18h 23m

1 stop

ABE9:41 amAllentown-Bethlehem

Jul 16

ABE12:29 pmAllentown-Bethlehem

31h 29m

2 stops

SDF7:58 pmLouisville Intl

$567

Delta flights from Louisville to Allentown

Our best Delta deals on Louisville to Allentown flight tickets

Delta

Jul 25

SDF6:00 amLouisville Intl

6h 10m

1 stop

ABE12:10 pmAllentown-Bethlehem

Aug 1

ABE6:05 pmAllentown-Bethlehem

6h 09m

1 stop

SDF12:14 amLouisville Intl

$378

Delta

Jul 2

SDF6:00 amLouisville Intl

6h 27m

1 stop

ABE12:27 pmAllentown-Bethlehem

Jul 5

ABE6:20 amAllentown-Bethlehem

5h 33m

1 stop

SDF11:53 amLouisville Intl

$452

Delta

Jul 15

SDF11:17 amLouisville Intl

6h 08m

1 stop

ABE5:25 pmAllentown-Bethlehem

Jul 19

ABE1:08 pmAllentown-Bethlehem

4h 41m

1 stop

SDF5:49 pmLouisville Intl

$592

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Sat 7/25

6:00 am-12:10 pm

1 stop6h 10m

Allentown-Bethlehem

Sat 8/1

6:05 pm-12:14 am

1 stop6h 09m

$378

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Sat 7/25

1:02 pm-8:49 pm

1 stop7h 47m

Allentown-Bethlehem

Sat 8/1

8:10 am-6:15 pm

2 stops34h 05m

$428

Quickest round-trip

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Tue 12/8

12:20 pm-4:56 pm

1 stop4h 36m

Allentown-Bethlehem

Sat 12/12

5:36 pm-10:09 pm

1 stop4h 33m

$481

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Sun 7/12

3:18 pm-9:41 am

1 stop18h 23m

Allentown-Bethlehem

Thu 7/16

6:00 am-2:33 pm

1 stop8h 33m

$482

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Mon 7/13

8:48 pm-4:10 pm

2 stops19h 22m

Allentown-Bethlehem

Fri 7/17

8:49 pm-8:10 pm

1 stop23h 21m

$564

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Sun 7/12

3:18 pm-9:41 am

1 stop18h 23m

Allentown-Bethlehem

Thu 7/16

12:29 pm-7:58 pm

2 stops31h 29m

$567

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Wed 7/15

11:17 am-5:25 pm

1 stop6h 08m

Allentown-Bethlehem

Sun 7/19

1:08 pm-5:49 pm

1 stop4h 41m

$592

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Tue 12/8

2:20 pm-10:06 am

2 stops19h 46m

Allentown-Bethlehem

Sat 12/12

5:36 pm-10:09 pm

1 stop4h 33m

$600

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Sun 7/19

7:14 am-11:27 pm

1 stop16h 13m

Allentown-Bethlehem

Sat 7/25

6:01 am-10:04 pm

1 stop16h 03m

$611

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Wed 7/15

8:06 pm-9:23 pm

2 stops25h 17m

Allentown-Bethlehem

Sun 7/19

12:01 pm-8:12 am

1 stop20h 11m

$613

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first

How to get the cheapest flight ticket from Louisville 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

Prices

Airlines

What is the cheapest month to fly to Allentown?

The month of December is, on average, the cheapest month to fly to Allentown from Louisville, with most prices found around $0. If you aren’t able to travel to Allentown during the month of December, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $0.

When to book flights from Louisville to Allentown

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

Estimated round-trip price

Cheap Louisville to Allentown (SDF to ABE) flight deals and tips

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

Fastest flight time	4h 36m
Direct flights	None

The fastest flight from Louisville to Allentown takes 4h 36m

There are no direct flights from Louisville to Allentown. There are no popular flight routes from Louisville to Allentown.

Search flight deals

Frequently asked questions about flying from Louisville to Allentown

How far is Louisville Intl to Allentown-Bethlehem by plane?
A flight from Louisville Intl to Allentown-Bethlehem will travel around 571.7 mi. Flights usually cover this in 4h 36m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Louisville Intl Airport to Allentown-Bethlehem Airport?
Prices for flights from Louisville Intl Airport to Allentown-Bethlehem Airport are updated daily.
How old do you have to be to fly from Louisville Intl Airport to Allentown-Bethlehem Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Allentown-Bethlehem Airport.
What documentation or ID do you need to fly to Allentown-Bethlehem Airport?
The required travel and health documents for your Allentown-Bethlehem Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Allentown-Bethlehem Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Lehighton

Why use momondo?

Why should I use momondo to find a flight deal from Louisville 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 Louisville.

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

All flight searches from Louisville to Allentown on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Louisville to Allentown.

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

If you are simply researching potential flights to Allentown, momondo offers a useful price alert feature which will track prices for flights to Allentown from Louisville and alert you when they change.