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$299+ Cheap flights from Louisville to Allentown (SDF - ABE)

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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — ABE
Aug 29 — Sep 51
Sat 8/29
Sat 9/5
1 adult, Economy
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Cheap flight deals from Louisville to Allentown

Cheapest flights from Louisville to Allentown
Explore the most affordable flight options available from Louisville to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/26. 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 11/19:11 pm
SDF
-
ABE
1 stop23h 16m
Allegiant Air
Sun 11/81:58 pm
ABE
-
SDF
1 stop28h 05m
Allegiant Air
Deal found 7/26$305
This United Airlines deal was found by Cheapflights users on 7/26. 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 8/291:50 pm
SDF
-
ABE
1 stop7h 10m
United Airlines
Sun 8/306:15 am
ABE
-
SDF
1 stop6h 56m
United Airlines
Deal found 7/26$319
This United Airlines deal was found by Cheapflights users on 7/30. 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 8/275:15 am
SDF
-
ABE
1 stop4h 42m
United Airlines
Thu 9/310:32 am
ABE
-
SDF
1 stop6h 06m
United Airlines
Deal found 7/30$339
This Delta deal was found by Cheapflights users on 7/26. 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 10/96:00 am
SDF
-
ABE
1 stop6h 05m
Delta
Sun 10/116:03 pm
ABE
-
SDF
1 stop5h 56m
Delta
Deal found 7/26$347
This Delta deal was found by Cheapflights users on 7/28. 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 10/16:00 am
SDF
-
ABE
1 stop6h 15m
Delta
Sun 10/46:04 pm
ABE
-
SDF
1 stop5h 55m
Delta
Deal found 7/28$351
This Delta deal was found by Cheapflights users on 7/30. 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 8/273:25 pm
SDF
-
ABE
1 stop6h 58m
Delta
Thu 9/36:16 am
ABE
-
SDF
1 stop6h 10m
Delta
Deal found 7/30$371
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 11/19:11 pm
SDF
-
ABE
1 stop23h 16m
Multiple Airlines
Sun 11/84:31 pm
ABE
-
SDF
2 stops17h 14m
Multiple Airlines
Deal found 7/26$424
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 8/2711:12 am
SDF
-
ABE
2 stops29h 23m
Multiple Airlines
Thu 9/31:55 pm
ABE
-
SDF
1 stop24h 00m
Multiple Airlines
Deal found 7/30$474
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 9/35:24 pm
SDF
-
ABE
1 stop15h 00m
Multiple Airlines
Sun 9/61:55 pm
ABE
-
SDF
2 stops20h 10m
Multiple Airlines
Deal found 7/25$481
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Mon 8/245:15 am
SDF
-
ABE
1 stop4h 42m
United Airlines
Mon 8/315:36 pm
ABE
-
SDF
3 stops26h 37m
United Airlines
Deal found 7/25$538
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Mon 8/245:15 am
SDF
-
ABE
1 stop4h 42m
United Airlines
Tue 8/2510:32 am
ABE
-
SDF
1 stop6h 06m
United Airlines
Deal found 7/28$567

Find flight deals from Louisville to Allentown

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Allentown (ABE). 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 July 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$305
(Kiwi.com)

One-way from

$299
(Delta)

Popular in

June

Cheapest in

November

Average price

$622
Provider with most accurate pricing for Louisville Intl-Allentown-Bethlehem flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-Allentown-Bethlehem flights.
Search Deals
From Louisville Intl to Allentown-Bethlehem
Search Deals
One-way flight from Louisville Intl to Allentown-Bethlehem
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($152 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville to Allentown 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 July 30, 2026.
Use the filters below to find and compare flights from Louisville to Allentown that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Fri 10/30

5:59 pm-10:29 pm

1 stop4h 30m

Allentown-Bethlehem

Sat 10/31

6:39 am-12:54 pm

1 stop6h 15m

$347

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Fri 10/9

6:00 am-12:05 pm

1 stop6h 05m

Allentown-Bethlehem

Sun 10/11

6:03 pm-11:59 pm

1 stop5h 56m

$347

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Thu 10/29

7:05 am-12:05 pm

1 stop5h 00m

Allentown-Bethlehem

Sat 10/31

6:39 am-12:54 pm

1 stop6h 15m

$347
Quickest round-trip

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Mon 8/24

8:05 am-12:28 pm

1 stop4h 23m

Allentown-Bethlehem

Mon 8/31

6:16 am-10:32 am

1 stop4h 16m

$347

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Thu 10/1

6:00 am-12:15 pm

1 stop6h 15m

Allentown-Bethlehem

Sun 10/4

6:04 pm-11:59 pm

1 stop5h 55m

$351

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Sat 8/29

11:17 am-5:23 pm

1 stop6h 06m

Allentown-Bethlehem

Sun 8/30

6:16 am-10:32 am

1 stop4h 16m

$371

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Thu 8/27

3:25 pm-10:23 pm

1 stop6h 58m

Allentown-Bethlehem

Thu 9/3

6:16 am-12:26 pm

1 stop6h 10m

$371

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Wed 1/13

11:00 am-4:56 pm

1 stop5h 56m

Allentown-Bethlehem

Sat 1/16

10:37 am-4:49 pm

1 stop6h 12m

$419

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Mon 8/24

5:15 am-9:57 am

1 stop4h 42m

Allentown-Bethlehem

Mon 8/31

5:36 pm-8:13 pm

3 stops26h 37m

$538

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Mon 8/24

5:15 am-9:57 am

1 stop4h 42m

Allentown-Bethlehem

Tue 8/25

10:32 am-4:38 pm

1 stop6h 06m

$567

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

Compare providers for flights from Louisville to Allentown

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 Louisville to Allentown in July.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust 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 Louisville-Allentown flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-Allentown flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-Allentown flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Louisville-Allentown 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 Louisville-Allentown 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 Louisville to Allentown

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

Related info for your journey

Find useful and relevant information for your journey from Louisville to Allentown. 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 Louisville to Allentown?

    There are many flights that can get you from Louisville to Allentown in 4h 30m. Fly via Delta to get the fastest option. The distance from Louisville to Allentown is about 575 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Louisville to Allentown by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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