HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Allentown

$118+ 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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — ABE
Nov 30 — Dec 71
Sun 11/30
Sun 12/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Louisville to Allentown with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 October 31, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$279
(Delta)

One-way from

$118
(Kiwi.com)

Popular in

December

Cheapest in

July
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. 12% potential increase in price ($58 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($27 potential savings vs. average RT price).
Search Deals

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 October 31, 2025.

This Delta deal was found by Cheapflights users on 10/28. 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 12/66:00 amSDF - ABE
1 stop6h 14mDelta
Sat 12/136:00 pmABE - SDF
1 stop5h 59mDelta
Deal found 10/28$249
This Delta deal was found by Cheapflights users on 10/30. 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.
Fri 11/143:09 pmSDF - ABE
1 stop7h 03mDelta
Tue 11/1812:56 pmABE - SDF
1 stop6h 16mDelta
Deal found 10/30$279
This Delta deal was found by Cheapflights users on 10/28. 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 11/66:00 amSDF - ABE
1 stop6h 06mDelta
Sun 11/96:10 amABE - SDF
1 stop5h 57mDelta
Deal found 10/28$389
This Delta deal was found by Cheapflights users on 10/28. 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.
Fri 11/75:58 pmSDF - ABE
1 stop4h 17mDelta
Sun 11/96:10 amABE - SDF
1 stop5h 57mDelta
Deal found 10/28$429
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Sun 11/168:53 pmSDF - ABE
1 stop16h 55mAllegiant Air
Wed 11/1910:14 amABE - SDF
1 stop29h 42mAllegiant Air
Deal found 10/28$471
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Sat 12/67:10 amSDF - ABE
2 stops14h 36mUnited Airlines
Sat 12/135:22 pmABE - SDF
1 stop5h 07mUnited Airlines
Deal found 10/28$490
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Tue 11/257:00 amSDF - ABE
1 stop4h 48mUnited Airlines
Sun 11/306:32 amABE - SDF
1 stop6h 45mUnited Airlines
Deal found 10/29$502
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Wed 11/263:12 pmSDF - ABE
1 stop24h 07mAllegiant Air
Sun 11/302:23 pmABE - SDF
1 stop18h 01mAllegiant Air
Deal found 10/28$538
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Fri 11/147:00 amSDF - ABE
1 stop4h 48mUnited Airlines
Tue 11/185:22 pmABE - SDF
2 stops21h 23mUnited Airlines
Deal found 10/30$562
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Sun 11/162:55 pmSDF - ABE
2 stops21h 12mMultiple Airlines
Wed 11/1911:00 amABE - SDF
1 stop26h 44mMultiple Airlines
Deal found 10/28$582
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Tue 11/117:00 amSDF - ABE
1 stop4h 48mUnited Airlines
Fri 11/145:22 pmABE - SDF
1 stop23h 54mUnited Airlines
Deal found 10/29$587
This Delta deal was found by Cheapflights users on 10/28. 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.
Fri 10/316:00 amSDF - ABE
1 stop7h 18mDelta
Sun 11/25:00 amABE - SDF
1 stop5h 49mDelta
Deal found 10/28$605

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 October 31, 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

Fri 11/14

3:09 pm-10:12 pm

1 stop7h 03m

Allentown-Bethlehem

Tue 11/18

12:56 pm-7:12 pm

1 stop6h 16m

$279

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Wed 3/25

6:00 am-12:07 pm

1 stop6h 07m

Allentown-Bethlehem

Sat 3/28

6:30 am-1:50 pm

1 stop7h 20m

$304

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Sun 11/16

8:53 pm-1:48 pm

1 stop16h 55m

Allentown-Bethlehem

Wed 11/19

10:14 am-3:56 pm

1 stop29h 42m

$471

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Tue 11/25

7:00 am-11:48 am

1 stop4h 48m

Allentown-Bethlehem

Sun 11/30

6:32 am-1:17 pm

1 stop6h 45m

$502

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Fri 3/13

5:45 pm-10:52 pm

1 stop5h 07m

Allentown-Bethlehem

Sun 3/15

5:40 pm-11:56 pm

1 stop6h 16m

$544

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Fri 11/14

7:00 am-11:48 am

1 stop4h 48m

Allentown-Bethlehem

Tue 11/18

5:22 pm-2:45 pm

2 stops21h 23m

$562

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Sun 11/16

2:55 pm-12:07 pm

2 stops21h 12m

Allentown-Bethlehem

Wed 11/19

11:00 am-1:44 pm

1 stop26h 44m

$582

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Tue 11/11

7:00 am-11:48 am

1 stop4h 48m

Allentown-Bethlehem

Fri 11/14

5:22 pm-5:16 pm

1 stop23h 54m

$587

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Wed 3/25

6:54 am-4:15 pm

2 stops9h 21m

Allentown-Bethlehem

Sat 3/28

5:47 pm-9:44 pm

1 stop3h 57m

$744

LouisvilleAllentown

SDF - ABE

SDFABE

Louisville Intl

Fri 12/12

11:21 am-10:24 pm

1 stop11h 03m

$118

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 19 results
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 October.
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, May is the cheapest month in which you can book a flight from Louisville to Allentown (average of $70). 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 October 31, 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
7,998 reviews

Overall

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,998 reviews
Delta
7.9
Good
7,998 reviews

Overall

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,998 reviews
Delta
7.9
Good
7,998 reviews

Overall

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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 7h 03m. Fly via Delta or Allegiant Air 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 $238, was found to be the cheapest airline from Louisville to Allentown. An alternate airline flying to your destination would be United Airlines. Delta is priced at 43% 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.

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

    Currently, May is the cheapest month in which you can book a flight from Louisville to Allentown (average of $70). 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

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.

Other flights to Allentown

Explore flights to Allentown departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 31, 2025.
Punta Gorda to Allentown flights
Fort Lauderdale to Allentown flights
Myrtle Beach to Allentown flights
Orlando Sanford Intl to Allentown flights
Nashville to Allentown flights
O'Hare Intl to Allentown flights
Allentown to Nashville flights
Allentown to Fort Lauderdale flights
Allentown to Melbourne, Florida flights
Allentown to Denver flights
Allentown to Orlando Sanford Intl Airport flights
Allentown to Orlando Airport flights
Allentown to Tampa flights
Allentown to Punta Gorda flights
Allentown to Nashville flights
Allentown to Myrtle Beach flights
Allentown to Melbourne, Florida flights
Allentown to Sarasota flights
Allentown to Fort Lauderdale flights
Allentown to Orlando Sanford Intl Airport flights
Allentown to Orlando Airport flights
Allentown to Tampa flights
Allentown to Fort Myers flights
Allentown to Philadelphia flights

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 October 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$238Average$408FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$273Average$385FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.