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$148+ 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 5/17. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — SDF
Feb 15 — Feb 221
Sun 2/15
Sun 2/22
1 adult, Economy
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Cheap 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 January 16, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$269
(Delta)

One-way from

$148
(Kiwi.com)

Popular in

November

Cheapest in

August
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.
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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. 34% potential increase in price ($253 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 18% potential price decrease ($74 potential savings vs. average RT price).
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Find 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 January 16, 2026.

This United Airlines deal was found by Cheapflights users on 1/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/142:55 pm
ABE
-
SDF
1 stop7h 18m
United Airlines
Sun 2/155:35 am
SDF
-
ABE
1 stop4h 26m
United Airlines
Deal found 1/13$269
This United Airlines deal was found by Cheapflights users on 1/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/2711:30 am
ABE
-
SDF
1 stop6h 07m
United Airlines
Tue 2/35:35 am
SDF
-
ABE
1 stop5h 06m
United Airlines
Deal found 1/13$274
This Delta deal was found by Cheapflights users on 1/14. 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 1/295:59 pm
ABE
-
SDF
1 stop5h 51m
Delta
Mon 2/25:35 am
SDF
-
ABE
1 stop6h 30m
Delta
Deal found 1/14$279
This Delta deal was found by Cheapflights users on 1/15. 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 4/35:59 pm
ABE
-
SDF
1 stop4h 44m
Delta
Tue 4/77:05 am
SDF
-
ABE
1 stop5h 01m
Delta
Deal found 1/15$304
This United Airlines deal was found by Cheapflights users on 1/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/284:57 pm
ABE
-
SDF
1 stop5h 33m
United Airlines
Sat 1/315:35 am
SDF
-
ABE
1 stop5h 06m
United Airlines
Deal found 1/14$349
This Delta deal was found by Cheapflights users on 1/15. 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.
Thu 4/26:32 am
ABE
-
SDF
1 stop7h 28m
Delta
Tue 4/75:35 pm
SDF
-
ABE
1 stop5h 24m
Delta
Deal found 1/15$354
This United Airlines deal was found by Cheapflights users on 1/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/135:23 pm
ABE
-
SDF
1 stop4h 50m
United Airlines
Sun 2/155:35 am
SDF
-
ABE
1 stop4h 26m
United Airlines
Deal found 1/13$381
This Kiwi.com deal was found by Cheapflights users on 1/15. 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.
Sun 3/226:00 am
ABE
-
SDF
1 stop26h 18m
Allegiant Air
Fri 3/279:09 pm
SDF
-
ABE
1 stop17h 21m
Allegiant Air
Deal found 1/15$398
This United Airlines deal was found by Cheapflights users on 1/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/316:15 am
ABE
-
SDF
1 stop7h 13m
United Airlines
Wed 2/48:45 am
SDF
-
ABE
1 stop7h 37m
United Airlines
Deal found 1/13$447
This Delta deal was found by Cheapflights users on 1/15. 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 4/35:59 pm
ABE
-
SDF
1 stop4h 44m
Delta
Mon 4/65:35 pm
SDF
-
ABE
1 stop5h 24m
Delta
Deal found 1/15$479
This American Airlines deal was found by Cheapflights users on 1/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/2512:50 pm
ABE
-
SDF
1 stop5h 19m
American Airlines
Sun 3/15:00 am
SDF
-
ABE
1 stop6h 30m
American Airlines
Deal found 1/13$489

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 January 16, 2026.
Use the filters below to find and compare flights from Allentown to Louisville that are best for you.

Fly from

Allentown

Fly to

Louisville

Route

Depart

Return

Price

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Sat 2/14

2:55 pm-10:13 pm

1 stop7h 18m

Louisville Intl

Sun 2/15

5:35 am-10:01 am

1 stop4h 26m

$269

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Thu 1/29

5:59 pm-11:50 pm

1 stop5h 51m

Louisville Intl

Mon 2/2

5:35 am-12:05 pm

1 stop6h 30m

$279

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Fri 4/3

5:59 pm-10:43 pm

1 stop4h 44m

Louisville Intl

Tue 4/7

7:05 am-12:06 pm

1 stop5h 01m

$304

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Wed 1/28

4:57 pm-10:30 pm

1 stop5h 33m

Louisville Intl

Sat 1/31

5:35 am-10:41 am

1 stop5h 06m

$349

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Thu 4/2

6:32 am-2:00 pm

1 stop7h 28m

Louisville Intl

Tue 4/7

5:35 pm-10:59 pm

1 stop5h 24m

$354

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Fri 2/13

5:23 pm-10:13 pm

1 stop4h 50m

Louisville Intl

Sun 2/15

5:35 am-10:01 am

1 stop4h 26m

$381

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Sat 1/31

6:15 am-1:28 pm

1 stop7h 13m

Louisville Intl

Wed 2/4

8:45 am-4:22 pm

1 stop7h 37m

$447

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Fri 4/3

5:59 pm-10:43 pm

1 stop4h 44m

Louisville Intl

Mon 4/6

5:35 pm-10:59 pm

1 stop5h 24m

$479

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Wed 4/8

6:32 am-11:58 am

1 stop5h 26m

Louisville Intl

Sun 4/12

6:00 am-12:06 pm

1 stop6h 06m

$479

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Wed 2/25

12:50 pm-6:09 pm

1 stop5h 19m

Louisville Intl

Sun 3/1

5:00 am-11:30 am

1 stop6h 30m

$489

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/14

Showing 1-10 of 14 results
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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Allentown-Louisville flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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, April 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 January 16, 2026.
See what other customers who have flown with Delta, United Airlines, 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
8,051 reviews

Entertainment

7.8

Overall

7.9

Food

7.2

Comfort

7.9

Boarding

8.1

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
8,051 reviews
Delta
7.9
Good
8,051 reviews

Entertainment

7.8

Overall

7.9

Food

7.2

Comfort

7.9

Boarding

8.1

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
9,163 reviews
Delta
7.9
Good
8,051 reviews

Entertainment

7.8

Overall

7.9

Food

7.2

Comfort

7.9

Boarding

8.1

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
7.2
Good
11,136 reviews
Delta
7.9
Good
8,051 reviews

Entertainment

7.8

Overall

7.9

Food

7.2

Comfort

7.9

Boarding

8.1

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 $279, United Airlines can have you in Louisville from Allentown in 5h 51m. 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 United Airlines is currently your cheapest option to Louisville, with prices starting at $124. Additional round-trip tickets that might be worth considering are offered by Delta and American Airlines, with the lowest prices starting at $248 and $306, respectively. Users have found that United Airlines is 73% 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, April 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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Top 3 airlines flying from Allentown to Louisville

Discover the top 3 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 January 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$124Average$308FlexibilityNo cancel feeOn-time69%
DeltaCheapest$248Average$398FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$306Average$566FlexibilityNo cancel feeOn-time71%

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