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$185+ 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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — SDF
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
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 October 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$319
(United Airlines)

One-way from

$185
(Kiwi.com)

Popular in

June

Cheapest in

August

Average price

$368
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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One-way flight from Allentown-Bethlehem to Louisville Intl
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Highest demand for flights based on searches. 2% potential increase in price ($9 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 20, 2025.

This Delta deal was found by Cheapflights users on 10/19. 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.
Sat 10/256:00 pmABE - SDF
1 stop6h 01mDelta
Sun 10/266:00 amSDF - ABE
1 stop6h 06mDelta
Deal found 10/19$324
This Delta deal was found by Cheapflights users on 10/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/186:00 pmABE - SDF
1 stop6h 01mDelta
Thu 10/236:00 amSDF - ABE
1 stop6h 06mDelta
Deal found 10/17$339
This Kiwi.com deal was found by Cheapflights users on 10/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/212:14 pmABE - SDF
2 stops30h 02mMultiple Airlines
Thu 11/68:53 pmSDF - ABE
1 stop16h 55mMultiple Airlines
Deal found 10/18$382
This Kiwi.com deal was found by Cheapflights users on 10/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/25:30 amABE - SDF
1 stop13h 20mAllegiant Air
Thu 11/68:53 pmSDF - ABE
1 stop16h 55mAllegiant Air
Deal found 10/18$397
This United Airlines deal was found by Cheapflights users on 10/19. 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 10/225:28 pmABE - SDF
1 stop5h 02mUnited Airlines
Sat 10/251:58 pmSDF - ABE
1 stop7h 56mUnited Airlines
Deal found 10/19$409
This Delta deal was found by Cheapflights users on 10/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/186:00 pmABE - SDF
1 stop6h 01mDelta
Wed 10/223:11 pmSDF - ABE
1 stop7h 04mDelta
Deal found 10/17$419
This Kiwi.com deal was found by Cheapflights users on 10/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/229:12 pmABE - SDF
1 stop23h 13mAllegiant Air
Fri 10/249:40 pmSDF - ABE
1 stop10h 54mAllegiant Air
Deal found 10/18$465
This American Airlines deal was found by Cheapflights users on 10/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/186:13 amABE - SDF
1 stop5h 20mAmerican Airlines
Sun 10/198:22 amSDF - ABE
1 stop5h 04mAmerican Airlines
Deal found 10/17$593
This Delta deal was found by Cheapflights users on 10/19. 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.
Tue 11/46:00 amABE - SDF
1 stop5h 49mDelta
Tue 11/45:58 pmSDF - ABE
1 stop4h 17mDelta
Deal found 10/19$711

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 October 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

Sat 2/21

2:55 pm-8:14 pm

1 stop5h 19m

Louisville Intl

Wed 2/25

5:35 am-9:58 am

1 stop4h 23m

$319

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Sun 11/2

12:14 pm-6:16 pm

2 stops30h 02m

Louisville Intl

Thu 11/6

8:53 pm-1:48 pm

1 stop16h 55m

$382

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Sun 11/2

5:30 am-6:50 pm

1 stop13h 20m

Louisville Intl

Thu 11/6

8:53 pm-1:48 pm

1 stop16h 55m

$397

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Sat 2/21

6:15 am-6:47 pm

2 stops12h 32m

Louisville Intl

Wed 2/25

11:38 am-12:16 am

2 stops12h 38m

$488

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Thu 3/5

6:30 am-1:50 pm

1 stop7h 20m

Louisville Intl

Sun 3/8

6:00 am-12:07 pm

1 stop6h 07m

$499

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Wed 11/5

8:30 am-9:14 am

1 stop24h 44m

$185

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Tue 11/4

6:00 pm-10:34 pm

1 stop4h 34m

$322

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Tue 11/4

10:16 am-9:14 am

3 stops46h 58m

$329

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Wed 11/5

5:22 pm-7:54 pm

2 stops26h 32m

$499

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Tue 11/4

5:22 pm-7:54 pm

2 stops26h 32m

$499

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/17

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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
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 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, 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 October 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.

How much does it cost to fly round-trip from Allentown to Louisville?

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 October 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
7,976 reviews

Boarding

8.2

Comfort

7.9

Overall

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,976 reviews
Delta
7.9
Good
7,976 reviews

Boarding

8.2

Comfort

7.9

Overall

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,994 reviews
Delta
7.9
Good
7,976 reviews

Boarding

8.2

Comfort

7.9

Overall

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,026 reviews
Delta
7.9
Good
7,976 reviews

Boarding

8.2

Comfort

7.9

Overall

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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 $319, United Airlines can have you in Louisville from Allentown in 5h 19m. 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 $223. 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 44% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Allentown to Louisville one-way?

    To fly one-way, consider booking your trip with Allegiant Air, which is currently one of the cheapest options available, starting at $185. Delta flights start at $322 while deals on United Airlines start at $499 one-way.

  • 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 October 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$223Average$391FlexibilityNo cancel feeOn-time69%
DeltaCheapest$248Average$358FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$306Average$566FlexibilityNo cancel feeOn-time71%

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