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$249+ 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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — ABE
ene. 15 — ene. 221
jue. 1/15
jue. 1/22
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 diciembre 16, 2025.

This Delta deal was found by Cheapflights users on 12/15. 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.
jue. 12/1812:58 pmSDF - ABE
1 stop4h 16mDelta
dom. 12/216:25 amABE - SDF
1 stop5h 01mDelta
Deal found 12/15$464
This American Airlines deal was found by Cheapflights users on 12/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/187:55 amSDF - ABE
2 stops8h 38mAmerican Airlines
sáb. 12/205:15 pmABE - SDF
1 stop4h 59mAmerican Airlines
Deal found 12/15$827
This American Airlines deal was found by Cheapflights users on 12/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/249:20 amSDF - ABE
1 stop7h 13mAmerican Airlines
mié. 12/315:15 pmABE - SDF
1 stop4h 59mAmerican Airlines
Deal found 12/16$885

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 diciembre 16, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$269
(Delta)

One-way from

$249
(Delta)

Popular in

December

Cheapest in

July

Average price

$383
Provider with most accurate pricing for Louisville Intl-Allentown-Bethlehem flight deals.
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Provider most trusted by Cheapflights users for Louisville Intl-Allentown-Bethlehem flights.
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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. 10% potential increase in price ($32 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 diciembre 16, 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

sáb. 1/17

5:35 am-10:41 am

1 stop5h 06m

Allentown-Bethlehem

lun. 1/19

4:57 pm-10:30 pm

1 stop5h 33m

$328

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

jue. 1/8

11:10 am-4:22 pm

1 stop5h 12m

Allentown-Bethlehem

lun. 1/12

4:57 pm-10:30 pm

1 stop5h 33m

$339

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

jue. 1/15

5:35 am-10:41 am

1 stop5h 06m

Allentown-Bethlehem

jue. 1/22

11:30 am-5:37 pm

1 stop6h 07m

$424

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

sáb. 1/17

11:08 am-10:26 pm

2 stops11h 18m

Allentown-Bethlehem

lun. 1/19

1:02 pm-10:05 pm

2 stops9h 03m

$829

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

lun. 1/5

5:45 pm-10:10 pm

1 stop4h 25m

$249

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

lun. 1/5

5:05 am-3:15 pm

3 stops58h 10m

$250

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

lun. 1/5

9:05 am-4:22 pm

2 stops31h 17m

$464

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Louisville-Allentown flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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

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

Currently, April is the cheapest month in which you can book a flight from Louisville to Allentown (average of $71). Flying from Louisville to Allentown in January is currently the most expensive (average of $137). 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 diciembre 16, 2025.
See what other customers who have flown with Delta and 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.
Delta
7.9
Good
8,010 reviews

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,010 reviews
Delta
7.9
Good
8,010 reviews

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,094 reviews
Delta
7.9
Good
8,010 reviews

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 06m. Fly via Delta or United Airlines to get the fastest option. The distance from Louisville to Allentown 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 Louisville to Allentown round-trip?

    Delta, at $248, was found to be the cheapest airline from Louisville to Allentown. An alternate airline flying to your destination would be United Airlines.

  • 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, April is the cheapest month in which you can book a flight from Louisville to Allentown (average of $71). Flying from Louisville to Allentown in January is currently the most expensive (average of $137). 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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Top 2 airlines flying from Louisville to Allentown

Discover the top 2 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 diciembre 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$248Average$308FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$273Average$385FlexibilityNo cancel feeOn-time69%

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