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$129+ Cheap flights from Allentown to Louisville (ABE - SDF)

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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — SDF
Apr 14 — Apr 211
Tue 4/14
Tue 4/21
1 adult, Economy
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Cheap flight deals from Allentown to Louisville

Cheapest flights from Allentown to Louisville
Explore the most affordable flight options available from Allentown to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 15, 2026.

This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/306:30 am
ABE
-
SDF
1 stop5h 06m
Delta
Wed 7/87:00 am
SDF
-
ABE
1 stop5h 10m
Delta
Deal found 3/12$309
This Delta deal was found by Cheapflights users on 3/11. 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.
Tue 3/3112:56 pm
ABE
-
SDF
1 stop5h 53m
Delta
Wed 4/85:35 pm
SDF
-
ABE
1 stop5h 17m
Delta
Deal found 3/11$314
This Kiwi.com deal was found by Cheapflights users on 3/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:55 pm
ABE
-
SDF
1 stop13h 56m
Allegiant Air
Sun 5/319:08 am
SDF
-
ABE
1 stop24h 32m
Allegiant Air
Deal found 3/14$321
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.
Fri 7/38:49 pm
ABE
-
SDF
1 stop23h 31m
Allegiant Air
Thu 7/93:18 pm
SDF
-
ABE
1 stop18h 23m
Allegiant Air
Deal found 3/12$327
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/16:30 am
ABE
-
SDF
1 stop7h 19m
Delta
Fri 7/105:45 pm
SDF
-
ABE
1 stop5h 11m
Delta
Deal found 3/12$344
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.
Fri 7/38:49 pm
ABE
-
SDF
1 stop23h 31m
Allegiant Air
Sat 7/111:02 pm
SDF
-
ABE
1 stop7h 47m
Allegiant Air
Deal found 3/12$346
This Delta deal was found by Cheapflights users on 3/11. 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.
Tue 3/3112:56 pm
ABE
-
SDF
1 stop5h 53m
Delta
Tue 4/75:35 pm
SDF
-
ABE
1 stop5h 17m
Delta
Deal found 3/11$349
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 6/282:46 pm
ABE
-
SDF
1 stop30h 02m
Multiple Airlines
Thu 7/93:18 pm
SDF
-
ABE
1 stop18h 23m
Multiple Airlines
Deal found 3/12$353
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/296:30 am
ABE
-
SDF
1 stop5h 06m
Delta
Tue 7/73:24 pm
SDF
-
ABE
1 stop7h 32m
Delta
Deal found 3/12$354
This Delta deal was found by Cheapflights users on 3/11. 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.
Tue 3/3112:56 pm
ABE
-
SDF
1 stop5h 53m
Delta
Mon 4/65:35 pm
SDF
-
ABE
1 stop5h 17m
Delta
Deal found 3/11$359
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.
Wed 7/12:31 pm
ABE
-
SDF
1 stop24h 02m
Allegiant Air
Thu 7/93:18 pm
SDF
-
ABE
1 stop18h 23m
Allegiant Air
Deal found 3/12$362
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 6/282:46 pm
ABE
-
SDF
1 stop30h 02m
Multiple Airlines
Sun 7/53:18 pm
SDF
-
ABE
1 stop18h 23m
Multiple Airlines
Deal found 3/12$367

Find flight deals from Allentown to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from Allentown (ABE) to Louisville (SDF). 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 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$309
(Delta)

One-way from

$129
(Kiwi.com)

Popular in

November

Cheapest in

May

Average price

$411
Provider with most accurate pricing for Allentown-Bethlehem-Louisville Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Allentown-Bethlehem-Louisville Intl flights.
Search Deals
From Allentown-Bethlehem to Louisville Intl
Search Deals
One-way flight from Allentown-Bethlehem to Louisville Intl
Search Deals
Highest demand for flights based on searches. 27% potential increase in price ($198 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 16% potential price decrease ($75 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 Allentown to Louisville 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 15, 2026.
Use the filters below to find and compare flights from Allentown to Louisville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Tue 6/16

6:30 am-11:36 am

1 stop5h 06m

Louisville Intl

Tue 6/30

3:24 pm-10:56 pm

1 stop7h 32m

$309

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Wed 5/27

6:55 pm-8:51 am

1 stop13h 56m

Louisville Intl

Sun 5/31

9:08 am-9:40 am

1 stop24h 32m

$321

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Sat 4/18

5:45 pm-11:59 pm

1 stop6h 14m

Louisville Intl

Sun 4/19

5:00 am-9:48 am

1 stop4h 48m

$379

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Thu 7/9

6:30 am-11:36 am

1 stop5h 06m

Louisville Intl

Sun 7/12

3:24 pm-10:56 pm

1 stop7h 32m

$389

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Thu 4/16

5:59 pm-11:59 pm

1 stop6h 00m

Louisville Intl

Sat 4/18

6:00 am-12:12 pm

1 stop6h 12m

$394

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Mon 5/25

8:50 pm-8:36 am

2 stops35h 46m

Louisville Intl

Sun 5/31

9:41 am-11:39 pm

1 stop13h 58m

$427
Quickest round-trip

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Thu 4/2

5:58 pm-10:43 pm

1 stop4h 45m

Louisville Intl

Tue 4/7

5:35 pm-10:52 pm

1 stop5h 17m

$429

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Thu 7/9

12:01 pm-8:34 pm

1 stop8h 33m

Louisville Intl

Sun 7/12

6:55 pm-10:25 pm

2 stops27h 30m

$446

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Tue 3/31

12:56 pm-6:49 pm

1 stop5h 53m

Louisville Intl

Sun 4/5

6:00 am-12:16 pm

1 stop6h 16m

$459

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Mon 4/6

5:58 pm-10:43 pm

1 stop4h 45m

Louisville Intl

Tue 4/7

6:00 am-12:16 pm

1 stop6h 16m

$537

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/11

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

Compare providers for flights from Allentown to Louisville

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 Allentown to Louisville 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 Allentown-Louisville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Allentown-Louisville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Allentown-Louisville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Allentown-Louisville 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 Allentown-Louisville 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 Allentown to Louisville

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

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

Currently, June is the cheapest month in which you can book a flight from Allentown to Louisville (average of $60). Flying from Allentown to Louisville in September is currently the most expensive (average of $164). 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 Louisville

Get insights into the airlines that provide service to Louisville. 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 Louisville. Reviews last updated March 15, 2026.
See what other customers who have flown with Delta and American Airlines from Allentown to Louisville 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
8,293 reviews

Food

7.2

Boarding

8.1

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
8,293 reviews
Delta
7.9
Good
8,293 reviews

Food

7.2

Boarding

8.1

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.
American Airlines
7.1
Good
11,472 reviews
Delta
7.9
Good
8,293 reviews

Food

7.2

Boarding

8.1

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 Allentown to Louisville. 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 Allentown to Louisville?

    For as low as $309, Delta can have you in Louisville from Allentown in 5h 06m. The distance between Allentown and Louisville is about 575 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Flying on Delta is currently your cheapest option to Louisville, with prices starting at $248. Another option worth looking into is American Airlines, starting at $306 round trip. Users have found that Delta is 53% cheaper than the other options available to this destination.

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

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

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

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

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

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

    Currently, June is the cheapest month in which you can book a flight from Allentown to Louisville (average of $60). Flying from Allentown to Louisville in September is currently the most expensive (average of $164). 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

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
Shepherdsville
Jeffersonville
Elizabethtown
Corydon
Bardstown

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Allentown to Louisville

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Allentown to Louisville

Discover the top 2 airlines that operate flights from Allentown to Louisville. 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 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$248Average$376FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$306Average$566FlexibilityNo cancel feeOn-time71%

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