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$192+ 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 5/31. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — ABE
May 30 — Jun 61
Sat 5/30
Sat 6/6
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 April 30, 2026.

This Delta deal was found by Cheapflights users on 4/29. 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 8/275:45 pm
SDF
-
ABE
1 stop5h 11m
Delta
Mon 8/315:40 pm
ABE
-
SDF
1 stop4h 56m
Delta
Deal found 4/29$328
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/410:33 am
SDF
-
ABE
2 stops35h 56m
Multiple Airlines
Sun 6/142:46 pm
ABE
-
SDF
1 stop30h 02m
Multiple Airlines
Deal found 4/28$366
This Delta deal was found by Cheapflights users on 4/28. 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.
Sat 7/183:50 pm
SDF
-
ABE
1 stop7h 18m
Delta
Tue 7/211:08 pm
ABE
-
SDF
1 stop4h 41m
Delta
Deal found 4/28$369
This Kiwi.com deal was found by Cheapflights users on 4/25. 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.
Fri 5/810:33 am
SDF
-
ABE
1 stop9h 37m
Multiple Airlines
Sun 5/107:30 am
ABE
-
SDF
1 stop26h 56m
Multiple Airlines
Deal found 4/25$387
This Delta deal was found by Cheapflights users on 4/29. 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 5/146:00 am
SDF
-
ABE
1 stop6h 19m
Delta
Mon 5/186:15 pm
ABE
-
SDF
1 stop6h 10m
Delta
Deal found 4/29$443
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/58:19 pm
SDF
-
ABE
1 stop17h 58m
Multiple Airlines
Mon 6/154:39 pm
ABE
-
SDF
2 stops39h 57m
Multiple Airlines
Deal found 4/28$451
This deal was found by Cheapflights users on 4/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/275:35 am
SDF
-
ABE
1 stop4h 31m
United Airlines
Mon 8/315:36 pm
ABE
-
SDF
1 stop4h 46m
United Airlines
Deal found 4/25$458
This Delta deal was found by Cheapflights users on 4/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/111:12 am
SDF
-
ABE
1 stop6h 07m
Delta
Sun 5/35:59 pm
ABE
-
SDF
1 stop6h 00m
Delta
Deal found 4/25$474
This American Airlines deal was found by Cheapflights users on 4/29. 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.
Fri 7/38:19 pm
SDF
-
ABE
1 stop4h 04m
American Airlines
Mon 7/65:13 pm
ABE
-
SDF
1 stop16h 50m
American Airlines
Deal found 4/29$519

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 April 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$328
(Delta)

One-way from

$192
(Kiwi.com)

Popular in

August

Cheapest in

November

Average price

$343
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. 6% potential increase in price ($24 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 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
Quickest round-trip

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Thu 8/27

5:45 pm-10:56 pm

1 stop5h 11m

Allentown-Bethlehem

Mon 8/31

5:40 pm-10:36 pm

1 stop4h 56m

$328

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Tue 8/18

3:24 pm-10:56 pm

1 stop7h 32m

Allentown-Bethlehem

Wed 8/26

6:30 am-1:48 pm

1 stop7h 18m

$329

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Wed 8/19

3:24 pm-10:56 pm

1 stop7h 32m

Allentown-Bethlehem

Thu 8/27

6:30 am-1:48 pm

1 stop7h 18m

$329

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Sat 7/18

3:50 pm-11:08 pm

1 stop7h 18m

Allentown-Bethlehem

Tue 7/21

1:08 pm-5:49 pm

1 stop4h 41m

$369

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Fri 6/5

8:19 pm-2:17 pm

1 stop17h 58m

Allentown-Bethlehem

Mon 6/15

4:39 pm-8:36 am

2 stops39h 57m

$451

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Fri 7/3

8:19 pm-12:23 am

1 stop4h 04m

Allentown-Bethlehem

Mon 7/6

5:13 pm-10:03 am

1 stop16h 50m

$519

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Thu 8/27

5:35 am-10:06 am

1 stop4h 31m

Allentown-Bethlehem

Mon 8/31

5:36 pm-8:02 pm

3 stops26h 26m

$561
Cheapest one-way

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Sun 5/31

10:33 am-2:00 pm

1 stop27h 27m

$192
Quickest one-way

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Tue 6/2

6:00 am-12:19 pm

1 stop6h 19m

$269

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Tue 6/2

3:41 pm-1:48 pm

2 stops22h 07m

$418

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Sorted by cheapest first

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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 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.

Cheapflights Insights

Everything you need to know about your flight from Louisville to Allentown

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

Reviews of airlines servicing Allentown

Get insights into the airlines that provide service to Allentown. 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 Allentown. Reviews last updated April 30, 2026.
See what other customers who have flown with United Airlines from Louisville to Allentown have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,677 reviews

Food

6.6

Overall

7.4

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,677 reviews
United Airlines
7.4
Good
9,677 reviews

Food

6.6

Overall

7.4

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

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 5h 11m. Fly via Delta to get the fastest option. The distance from Louisville to Allentown is about 575 mi.

  • What is the cheapest airline to fly from Louisville to Allentown round-trip?

    United Airlines, at $323, was found to be the cheapest airline from Louisville to Allentown.. United Airlines is priced at 15% lower than the current average price of a flight leaving 3 months from now.

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Louisville to Allentown

Discover the top airline that operate flights from Louisville to Allentown. 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 April 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$323Average$354FlexibilityNo cancel feeOn-time69%

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