ABE - SDF

$138 Find Cheap Flights from Allentown to Louisville

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Allentown to Louisville departing on 5/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Louisville

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Allentown to Louisville, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Allentown to Louisville, as well as popular online travel agencies
Travelers love KAYAK
41 299 237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$309
Delta
Tue 6/30Wed 7/8
ABE - SDF • 1 stop
Cheapest one-way
$138
Multiple Airlines
Sun 5/10
ABE - SDF • 1 stop
Top airlines
Cheapest • from $309 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Allentown and Louisville. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $338 (round-trip)
Shortest trip • 4h 30m (one-way)
Insights
Insights
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Louisville!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Allentown to Louisville (ABE-SDF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Allentown to Louisville that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Allentown to Louisville

Tue, Jun 30 - Wed, Jul 8
Delta Logo
6:30 am - 11:36 am
ABE
-
SDF
5h 06m
1 stop
Delta Logo
7:00 am - 12:10 pm
SDF
-
ABE
5h 10m
1 stop
$309Delta
Wed, May 27 - Sun, May 31
Allegiant Air Logo
6:55 pm - 8:51 am
ABE
-
SDF
13h 56m
1 stop
Allegiant Air Logo
9:08 am - 9:40 am
SDF
-
ABE
24h 32m
1 stop
$321Allegiant Air
Fri, Jul 3 - Thu, Jul 9
Allegiant Air Logo
8:49 pm - 8:20 pm
ABE
-
SDF
23h 31m
1 stop
Allegiant Air Logo
3:18 pm - 9:41 am
SDF
-
ABE
18h 23m
1 stop
$327Allegiant Air
Wed, Jul 1 - Fri, Jul 10
Delta Logo
6:30 am - 1:49 pm
ABE
-
SDF
7h 19m
1 stop
Delta Logo
5:45 pm - 10:56 pm
SDF
-
ABE
5h 11m
1 stop
$344Delta
Fri, Jul 3 - Sat, Jul 11
Allegiant Air Logo
8:49 pm - 8:20 pm
ABE
-
SDF
23h 31m
1 stop
Allegiant Air Logo
1:02 pm - 8:49 pm
SDF
-
ABE
7h 47m
1 stop
$346Allegiant Air
Sun, Jun 28 - Thu, Jul 9
Multiple Airlines Logo
2:46 pm - 8:48 pm
ABE
-
SDF
30h 02m
1 stop
Multiple Airlines Logo
3:18 pm - 9:41 am
SDF
-
ABE
18h 23m
1 stop
$353Multiple Airlines
Mon, Jun 29 - Tue, Jul 7
Delta Logo
6:30 am - 11:36 am
ABE
-
SDF
5h 06m
1 stop
Delta Logo
3:24 pm - 10:56 pm
SDF
-
ABE
7h 32m
1 stop
$354Delta
Wed, Jul 1 - Thu, Jul 9
Allegiant Air Logo
2:31 pm - 2:33 pm
ABE
-
SDF
24h 02m
1 stop
Allegiant Air Logo
3:18 pm - 9:41 am
SDF
-
ABE
18h 23m
1 stop
$362Allegiant Air
Sun, Jun 28 - Fri, Jul 10
Multiple Airlines Logo
2:46 pm - 8:48 pm
ABE
-
SDF
30h 02m
1 stop
Multiple Airlines Logo
9:02 am - 8:51 am
SDF
-
ABE
23h 49m
1 stop
$367Multiple Airlines
Thu, Jul 9 - Sun, Jul 12
Allegiant Air Logo
12:01 pm - 8:12 am
ABE
-
SDF
20h 11m
1 stop
Allegiant Air Logo
3:18 pm - 9:41 am
SDF
-
ABE
18h 23m
1 stop
$368Allegiant Air
Booking Insights

KAYAK's insights & trends for Allentown to Louisville flights

Get data-powered insights and trends into flights from Allentown to Louisville to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Allentown to Louisville?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Allentown to Louisville were found on Delta ($309) and Allegiant Air ($321).

Good to know

Low seasonMay
Cheapest flight$138
Best time to beat the crowds with an average 42% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from Allentown to Louisville

When to book flights from Allentown to Louisville

Are your dates flexible? Find out the best times to travel from Allentown to Louisville based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Allentown to Louisville

  • What is the cheapest flight from Allentown to Louisville?

    In the last 3 days, the lowest price for a flight from Allentown to Louisville was $138 for a one-way ticket and $309 for a round-trip.

  • Do I need a passport to fly between Allentown and Louisville?

    A passport is not required to fly from Allentown to Louisville.

  • Which airports will I be using when flying from Allentown to Louisville?

    Allentown and Louisville are both served by 1 main airport. You will leave Allentown from Allentown-Bethlehem and will be arriving at Louisville Intl.

  • Which aircraft models fly most regularly from Allentown to Louisville?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Allentown to Louisville?

    oneworld, and SkyTeam are the airline alliances operating flights between Allentown and Louisville, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Allentown to Louisville, Delta or American Airlines?

    The two airlines most popular with KAYAK users for flights from Allentown to Louisville are Delta and American Airlines. With an average price for the route of $376 and an overall rating of 7.9, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $566 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Allentown to Louisville?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Allentown to Louisville.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Allentown to Louisville?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Louisville from Allentown is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Allentown to Louisville?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Louisville with an airline and back to Allentown with another airline. Booking your flights between Allentown and SDF can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Allentown to Louisville?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Louisville from Allentown up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Allentown to Louisville

 
See real verified KAYAK customer reviews for airlines flying from Allentown to Louisville. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Allentown to Louisville? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8288 reviews
7.8Entertainment
7.9Comfort
8.1Boarding
7.2Food
8.5Crew
Airline reviews

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

10.0 ExcellentDebra, Mar 2026
PBI - ATL
Read more Delta reviews

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

Loved flying First Class. Very comfortable. The seat was amazing. Enjoyed a movie and was able to relax so much better than in coach.

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Stop changing gates. Stop cancelling flights Stop moving my seat.

It would have been nice if American tried to care.

The gate got changed several times and the flight was delayed over an hour. Awful experience

Delayed initially because they couldn’t print the flight details. Poor instruction on delay. When I got on the plane the flight attendant argued with me about whether my carry on would fit (it did, although she didn’t acknowledge that). No greeting (other than arguing with me) getting on or off the plane.

It was an older plane. First Class was not especially roomy or comfortable. It was a short flight so there were no meal but they did offer mixed nuts which used to be normal but now is rare. Crew member was very polite and professional.

No Snacks or Entertainment. The flight was short, snacks should still be given.

Beverage service was not good. Also just one service in 5 hr 30 min flight. No ask fir water ir anything beside one time beverage service.

They are always late and seats was also not having working charger

Pilot navigated severe weather/snow storm with skill. Described his intentions clearly

This flight captain and crew were amazing, started ahead of time of departure and reached 30 mins before arrival time. Amazing!

Long delays, lack of information about the status of the flight. The flight was delayed 4 times.

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

Information on your arrival and departure airports