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$258+ Cheap flights from Louisville to Allentown (SDF - ABE)

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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — ABE
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap 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, 2025.

Round-trip from

$258
(Mytrip)

One-way from

$189
(Mytrip)

Popular in

December

Cheapest in

July

Average price

$250
From Louisville Intl to Allentown-Bethlehem
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One-way flight from Louisville Intl to Allentown-Bethlehem
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Highest demand for flights based on searches. 22% potential increase in price ($108 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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, 2025.

This Mytrip deal was found by Cheapflights users on 7/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/810:55 amSDF - ABE
1 stop11h 29mMultiple Airlines
Thu 12/112:37 pmABE - SDF
1 stop9h 08mMultiple Airlines
Deal found 7/29$258
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.
Tue 8/126:00 pmSDF - ABE
1 stop4h 57mDelta
Sat 8/166:14 pmABE - SDF
1 stop4h 32mDelta
Deal found 7/28$259
This United Airlines deal was found by Cheapflights users on 7/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/267:20 pmSDF - ABE
1 stop15h 18mUnited Airlines
Mon 9/291:00 pmABE - SDF
1 stop5h 33mUnited Airlines
Deal found 7/29$544
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/126:44 amSDF - ABE
2 stops7h 42mAmerican Airlines
Sat 8/166:15 amABE - SDF
1 stop5h 27mAmerican Airlines
Deal found 7/28$698

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, 2025.
Use the filters below to find and compare flights from Louisville to Allentown that are best for you.

Fly from

Louisville

Fly to

Allentown

Route

Depart

Return

Price

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Mon 12/8

10:55 am-10:24 pm

1 stop11h 29m

Allentown-Bethlehem

Thu 12/11

2:37 pm-11:45 pm

1 stop9h 08m

$258

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Sat 8/30

10:45 am-5:34 pm

1 stop6h 49m

Allentown-Bethlehem

Sat 9/6

2:30 pm-6:40 pm

1 stop4h 10m

$394

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Tue 12/9

12:20 pm-4:47 pm

1 stop4h 27m

Allentown-Bethlehem

Thu 12/11

1:00 pm-8:49 pm

1 stop7h 49m

$477

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Fri 8/29

5:52 pm-10:29 pm

1 stop4h 37m

Allentown-Bethlehem

Sun 9/7

6:05 am-11:38 am

1 stop5h 33m

$805

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Mon 8/4

3:21 pm-10:30 pm

1 stop7h 09m

$375

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Mon 8/4

6:00 am-5:00 pm

2 stops11h 00m

$751

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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

What is the cheapest month to book a flight from Louisville to Allentown?

Currently, February is the cheapest month in which you can book a flight from Louisville to Allentown (average of $289). Flying from Louisville to Allentown in December is currently the most expensive (average of $395). 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.

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 July 30, 2025.
See what other customers who have flown with Delta, United Airlines, and American 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.
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

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
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

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
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

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
7,980 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

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!
Allegiant Air
7.2
Good
703 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

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 Louisville to Allentown. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Louisville to Allentown round-trip?

    Delta, at $394, was found to be the cheapest airline from Louisville to Allentown.Alternate airlines to your destination round-trip include United Airlines and American Airlines.

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

    The cheapest airlines for a one-way flight from Louisville to Allentown are Allegiant Air ($189), Delta ($239), and United Airlines ($751).

  • 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.

  • What is the cheapest month to book a flight from Louisville to Allentown?

    Currently, February is the cheapest month in which you can book a flight from Louisville to Allentown (average of $289). Flying from Louisville to Allentown in December is currently the most expensive (average of $395). 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

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Other flights to Allentown

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Top 3 airlines flying from Louisville to Allentown

Discover the top 3 airlines 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$228Average$358FlexibilityNo cancel feeOn-time71%
DeltaCheapest$238Average$318FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$273Average$385FlexibilityNo cancel feeOn-time69%

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