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$249+ Cheap flights from Allentown to Louisville (ABE - SDF)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — SDF
Dec 20 — Dec 271
Sat 12/20
Sat 12/27
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 November 20, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$249
(Delta)

Popular in

June

Cheapest in

August

Average price

$353
Provider with most accurate pricing for Allentown-Bethlehem-Louisville Intl flight deals.
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Provider most trusted by Cheapflights users for Allentown-Bethlehem-Louisville Intl flights.
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From Allentown-Bethlehem to Louisville Intl
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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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 November 20, 2025.

This Delta deal was found by Cheapflights users on 11/19. 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 12/56:00 pmABE - SDF
1 stop4h 58mDelta
Tue 12/97:15 amSDF - ABE
1 stop4h 59mDelta
Deal found 11/19$279
This Kiwi.com deal was found by Cheapflights users on 11/19. 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 12/310:00 amABE - SDF
1 stop27h 44mAllegiant Air
Fri 12/511:21 amSDF - ABE
1 stop11h 03mAllegiant Air
Deal found 11/19$289
This United Airlines deal was found by Cheapflights users on 11/17. 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.
Thu 11/201:00 pmABE - SDF
1 stop7h 44mUnited Airlines
Sat 11/222:02 pmSDF - ABE
1 stop7h 14mUnited Airlines
Deal found 11/17$439
This Mytrip deal was found by Cheapflights users on 11/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/16:00 amABE - SDF
1 stop15h 04mMultiple Airlines
Fri 12/511:55 amSDF - ABE
1 stop10h 29mMultiple Airlines
Deal found 11/18$491
This United Airlines deal was found by Cheapflights users on 11/20. 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.
Thu 11/276:32 amABE - SDF
1 stop9h 55mUnited Airlines
Sat 11/297:00 amSDF - ABE
1 stop4h 48mUnited Airlines
Deal found 11/20$502
This United Airlines deal was found by Cheapflights users on 11/19. 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 12/55:22 pmABE - SDF
1 stop5h 07mUnited Airlines
Tue 12/99:55 amSDF - ABE
2 stops25h 57mUnited Airlines
Deal found 11/19$542
This Delta deal was found by Cheapflights users on 11/18. 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 12/1112:54 pmABE - SDF
1 stop5h 58mDelta
Sun 12/146:00 amSDF - ABE
1 stop6h 14mDelta
Deal found 11/18$554
This United Airlines deal was found by Cheapflights users on 11/19. 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 12/35:22 pmABE - SDF
1 stop5h 07mUnited Airlines
Fri 12/59:55 amSDF - ABE
2 stops30h 52mUnited Airlines
Deal found 11/19$562
This Delta deal was found by Cheapflights users on 11/19. 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 12/76:25 amABE - SDF
1 stop5h 48mDelta
Wed 12/103:18 pmSDF - ABE
1 stop6h 53mDelta
Deal found 11/19$605
This Delta deal was found by Cheapflights users on 11/19. 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 12/286:25 amABE - SDF
1 stop5h 01mDelta
Wed 12/314:49 pmSDF - ABE
1 stop5h 57mDelta
Deal found 11/19$618
This Delta deal was found by Cheapflights users on 11/20. 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 11/276:10 amABE - SDF
1 stop5h 57mDelta
Sat 11/296:00 amSDF - ABE
1 stop6h 16mDelta
Deal found 11/20$664

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 November 20, 2025.
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

Tue 1/20

5:58 pm-11:50 pm

1 stop5h 52m

Louisville Intl

Sat 1/24

5:35 am-12:07 pm

1 stop6h 32m

$249

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Fri 12/5

6:00 pm-10:58 pm

1 stop4h 58m

Louisville Intl

Tue 12/9

7:15 am-12:14 pm

1 stop4h 59m

$279

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Wed 12/3

10:00 am-1:44 pm

1 stop27h 44m

Louisville Intl

Fri 12/5

11:21 am-10:24 pm

1 stop11h 03m

$289

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Fri 3/13

6:20 am-1:17 pm

1 stop6h 57m

Louisville Intl

Tue 3/17

5:35 am-9:58 am

1 stop4h 23m

$414

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Tue 1/13

6:28 am-11:37 am

1 stop5h 09m

Louisville Intl

Wed 1/14

3:37 pm-10:50 pm

1 stop7h 13m

$477

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Tue 1/20

1:02 pm-10:38 am

2 stops21h 36m

Louisville Intl

Sat 1/24

5:26 pm-12:32 pm

2 stops19h 06m

$488

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Mon 12/1

12:36 pm-5:53 pm

3 stops29h 17m

Louisville Intl

Fri 12/5

11:55 am-10:24 pm

1 stop10h 29m

$491

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Thu 11/27

6:10 am-12:07 pm

1 stop5h 57m

$429

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Thu 11/27

6:32 am-2:45 pm

2 stops8h 13m

$618

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

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 November.
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 $59). 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.

What is the cheapest time of day to fly from ABE to SDF?

Find hourly flight availability from Allentown to Louisville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2025.

One of the essential ways to save on airfare from Allentown to Louisville is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 38% on airfare.

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 November 20, 2025.
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
8,002 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

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
8,002 reviews
Delta
7.9
Good
8,002 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

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
9,029 reviews
Delta
7.9
Good
8,002 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

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
11,047 reviews
Delta
7.9
Good
8,002 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

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 $249, Delta can have you in Louisville from Allentown in 5h 52m. 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 69% 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 $59). 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

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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 November 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$124Average$308FlexibilityNo cancel feeOn-time69%
DeltaCheapest$248Average$358FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$306Average$566FlexibilityNo cancel feeOn-time71%

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