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Allentown

$289+ Cheap flights from Louisville to Allentown (SDF - 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 8/2. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — ABE
Apr 16 — Apr 231
Thu 4/16
Thu 4/23
1 adult, Economy
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Cheap flight deals from Louisville to Allentown

Cheapest flights from Louisville to Allentown
Explore the most affordable flight options available from Louisville to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 17, 2026.

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.
Mon 7/138:24 pm
SDF
-
ABE
1 stop20h 39m
Allegiant Air
Fri 8/1412:45 pm
ABE
-
SDF
1 stop23h 36m
Allegiant Air
Deal found 3/16$316
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 7/103:24 pm
SDF
-
ABE
1 stop7h 32m
Delta
Tue 8/115:40 pm
ABE
-
SDF
1 stop6h 19m
Delta
Deal found 3/16$329
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 5/319:08 am
SDF
-
ABE
1 stop24h 32m
Multiple Airlines
Thu 6/42:46 pm
ABE
-
SDF
1 stop30h 02m
Multiple Airlines
Deal found 3/12$330
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.
Sun 7/123:18 pm
SDF
-
ABE
1 stop18h 23m
Allegiant Air
Fri 8/1412:45 pm
ABE
-
SDF
1 stop23h 36m
Allegiant Air
Deal found 3/16$331
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.
Mon 7/138:24 pm
SDF
-
ABE
1 stop20h 39m
Allegiant Air
Thu 8/139:41 am
ABE
-
SDF
1 stop10h 58m
Allegiant Air
Deal found 3/16$355
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.
Fri 7/109:02 am
SDF
-
ABE
1 stop23h 49m
Multiple Airlines
Sun 8/162:53 pm
ABE
-
SDF
1 stop29h 55m
Multiple Airlines
Deal found 3/16$358
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.
Sun 7/123:18 pm
SDF
-
ABE
1 stop18h 23m
Multiple Airlines
Sun 8/162:53 pm
ABE
-
SDF
1 stop29h 55m
Multiple Airlines
Deal found 3/16$359
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.
Mon 7/138:24 pm
SDF
-
ABE
1 stop20h 39m
Allegiant Air
Sun 8/169:41 am
ABE
-
SDF
1 stop10h 58m
Allegiant Air
Deal found 3/16$363
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.
Sun 7/123:24 pm
SDF
-
ABE
1 stop7h 32m
Delta
Wed 8/121:00 pm
ABE
-
SDF
1 stop6h 01m
Delta
Deal found 3/16$364
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 7/169:19 pm
SDF
-
ABE
1 stop22h 40m
Allegiant Air
Thu 8/139:41 am
ABE
-
SDF
1 stop10h 58m
Allegiant Air
Deal found 3/16$369
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.
Sat 7/115:45 pm
SDF
-
ABE
1 stop5h 11m
Delta
Sun 8/161:00 pm
ABE
-
SDF
1 stop6h 01m
Delta
Deal found 3/16$374
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 7/169:19 pm
SDF
-
ABE
1 stop22h 40m
Allegiant Air
Sun 8/169:41 am
ABE
-
SDF
1 stop10h 58m
Allegiant Air
Deal found 3/16$376

Find flight deals from Louisville to Allentown

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) 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 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$316
(Kiwi.com)

One-way from

$289
(Delta)

Popular in

August

Cheapest in

November

Average price

$520
Provider with most accurate pricing for Louisville Intl-Allentown-Bethlehem flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-Allentown-Bethlehem flights.
Search Deals
From Louisville Intl to Allentown-Bethlehem
Search Deals
One-way flight from Louisville Intl to Allentown-Bethlehem
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville 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 17, 2026.
Use the filters below to find and compare flights from Louisville to Allentown that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Fri 7/10

3:24 pm-10:56 pm

1 stop7h 32m

Allentown-Bethlehem

Wed 8/12

6:30 am-1:48 pm

1 stop7h 18m

$329

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Sun 5/31

9:08 am-9:40 am

1 stop24h 32m

Allentown-Bethlehem

Thu 6/4

2:46 pm-8:48 pm

1 stop30h 02m

$330

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Fri 4/24

5:36 pm-11:00 pm

1 stop5h 24m

Allentown-Bethlehem

Mon 4/27

5:59 pm-11:59 pm

1 stop6h 00m

$364

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Mon 7/13

3:24 pm-10:56 pm

1 stop7h 32m

Allentown-Bethlehem

Tue 8/11

6:30 am-11:33 am

1 stop5h 03m

$364
Quickest round-trip

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Wed 5/27

1:00 pm-5:28 pm

1 stop4h 28m

Allentown-Bethlehem

Mon 6/1

6:15 pm-10:36 pm

1 stop4h 21m

$364

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Mon 7/13

3:24 pm-10:56 pm

1 stop7h 32m

Allentown-Bethlehem

Wed 8/12

1:00 pm-7:01 pm

1 stop6h 01m

$364

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Wed 7/15

7:00 am-12:10 pm

1 stop5h 10m

Allentown-Bethlehem

Mon 8/10

5:40 pm-10:36 pm

1 stop4h 56m

$374

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Tue 8/18

5:35 am-10:06 am

1 stop4h 31m

Allentown-Bethlehem

Sat 8/22

2:30 pm-10:22 pm

1 stop7h 52m

$379

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Wed 8/26

5:35 am-10:06 am

1 stop4h 31m

Allentown-Bethlehem

Sat 8/29

5:36 pm-12:05 am

1 stop6h 29m

$399
Cheapest one-way
Quickest one-way

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Sun 8/2

7:00 am-12:10 pm

1 stop5h 10m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/16

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

Compare providers for flights from Louisville 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 Louisville to Allentown in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust 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 Louisville-Allentown flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-Allentown flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-Allentown flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Louisville-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 Louisville-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 Louisville to Allentown

Have a flexible travel schedule? Discover the best time to fly to Allentown from Louisville 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 Louisville to Allentown

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

Currently, April is the cheapest month in which you can book a flight from Louisville to Allentown (average of $69). Flying from Louisville to Allentown in February is currently the most expensive (average of $189). 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.

Reviews of airlines servicing Allentown

Get insights into the airlines that provide service to Allentown. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Allentown. Reviews last updated March 17, 2026.
See what other customers who have flown with Delta and United Airlines from Louisville to Allentown have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,288 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Entertainment

7.8

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,288 reviews
Delta
7.9
Good
8,288 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Entertainment

7.8

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,431 reviews
Delta
7.9
Good
8,288 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Entertainment

7.8

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Louisville 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 Louisville to Allentown?

    There are many flights that can get you from Louisville to Allentown in 7h 32m. Fly via Delta to get the fastest option. The distance from Louisville to Allentown is about 575 mi.

  • What are the cheapest airlines flying from Louisville to Allentown round-trip?

    Delta, at $248, was found to be the cheapest airline from Louisville to Allentown. An alternate airline flying to your destination would be United Airlines. Delta is priced at 35% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Louisville 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 Louisville to Allentown?

    Currently, April is the cheapest month in which you can book a flight from Louisville to Allentown (average of $69). Flying from Louisville to Allentown in February is currently the most expensive (average of $189). 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.

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.

Top 2 airlines flying from Louisville to Allentown

Discover the top 2 airlines that operate flights from Louisville to Allentown. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$248Average$278FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$273Average$354FlexibilityNo cancel feeOn-time69%

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