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$274+ 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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — SDF
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
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 September 16, 2025.

Round-trip from

$274
(Delta)

Popular in

June

Cheapest in

August

Average price

$387
From Allentown-Bethlehem to Louisville Intl
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Highest demand for flights based on searches. 3% potential increase in price ($12 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 September 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 September 16, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Wed 10/19:14 pmABE - SDF
1 stop12h 05mMultiple Airlines
Tue 10/79:40 pmSDF - ABE
1 stop22h 44mMultiple Airlines
Deal found 9/15$279
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 9/298:30 amABE - SDF
1 stop24h 49mMultiple Airlines
Wed 10/110:14 amSDF - ABE
1 stop23h 12mMultiple Airlines
Deal found 9/16$304
This Delta deal was found by Cheapflights users on 9/15. 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 9/196:12 pmABE - SDF
1 stop5h 40mDelta
Sat 9/203:09 pmSDF - ABE
1 stop7h 13mDelta
Deal found 9/15$339
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Wed 10/19:14 pmABE - SDF
1 stop22h 48mAllegiant Air
Sun 10/58:52 pmSDF - ABE
1 stop26h 45mAllegiant Air
Deal found 9/15$418
This United Airlines deal was found by Cheapflights users on 9/13. 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.
Wed 9/241:00 pmABE - SDF
1 stop5h 58mUnited Airlines
Sun 9/2810:55 amSDF - ABE
1 stop5h 58mUnited Airlines
Deal found 9/13$503
This United Airlines deal was found by Cheapflights users on 9/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/181:00 pmABE - SDF
1 stop7h 28mUnited Airlines
Sat 9/2010:55 amSDF - ABE
1 stop5h 58mUnited Airlines
Deal found 9/16$509
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Thu 9/186:30 amABE - SDF
1 stop11h 16mAllegiant Air
Sun 9/216:36 pmSDF - ABE
1 stop19h 34mAllegiant Air
Deal found 9/15$513
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 9/179:45 amABE - SDF
1 stop23h 34mMultiple Airlines
Mon 9/2211:17 amSDF - ABE
2 stops23h 38mMultiple Airlines
Deal found 9/14$516
This United Airlines deal was found by Cheapflights users on 9/13. 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.
Sun 11/95:22 pmABE - SDF
1 stop5h 07mUnited Airlines
Wed 11/1211:00 amSDF - ABE
1 stop5h 47mUnited Airlines
Deal found 9/13$592

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 September 16, 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

6:30 am-1:50 pm

1 stop7h 20m

Louisville Intl

Wed 2/25

12:40 pm-5:13 pm

1 stop4h 33m

$274

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Wed 10/1

9:14 pm-9:19 am

1 stop12h 05m

Louisville Intl

Tue 10/7

9:40 pm-8:24 pm

1 stop22h 44m

$279

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Mon 9/29

8:30 am-9:19 am

1 stop24h 49m

Louisville Intl

Wed 10/1

10:14 am-9:26 am

1 stop23h 12m

$304

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Wed 10/1

9:14 pm-8:02 pm

1 stop22h 48m

Louisville Intl

Sun 10/5

8:52 pm-11:37 pm

1 stop26h 45m

$418

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Sun 11/9

5:22 pm-10:29 pm

1 stop5h 07m

Louisville Intl

Wed 11/12

11:00 am-4:47 pm

1 stop5h 47m

$592

AllentownLouisville

ABE - SDF

ABESDF

Allentown-Bethlehem

Fri 9/26

6:12 pm-11:52 pm

1 stop5h 40m

Louisville Intl

Sun 9/28

5:53 pm-10:41 pm

1 stop4h 48m

$614

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

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, January is the cheapest month in which you can book a flight from Allentown to Louisville (average of $299). Flying from Allentown to Louisville in April is currently the most expensive (average of $369). 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 September 16, 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 39% 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 September 16, 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
8.0
Very good
7,957 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,924 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 $274, Delta can have you in Louisville from Allentown in 7h 20m. The distance between Allentown and Louisville is about 575 mi.

  • 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 $243 and $303, respectively. Users have found that United Airlines is 44% 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, January is the cheapest month in which you can book a flight from Allentown to Louisville (average of $299). Flying from Allentown to Louisville in April is currently the most expensive (average of $369). 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$223Average$368FlexibilityNo cancel feeOn-time69%
DeltaCheapest$243Average$358FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$303Average$566FlexibilityNo cancel feeOn-time71%

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