Skip to main content
Beginning of main content

ISP (Islip) to SDF (Louisville) Flights $335.1

Search over 321,000 hotels worldwide and 400 airlines worldwide.
Secure incredible value with Expedia's Price Guarantee.
No Expedia cancellation fee to change or cancel almost any hotel reservation.

Here are your best fares found in the past 7 days

The lowest fare found for this route is $335.1 on Wed, Aug 23 from ISP to SDF
Flights Fare Calendar Find minimum fare between origin ISP and destination SDF Click this button to get previous 30 days data Click this button to get next 30 days data $677 $581 $484 $387 $290 $193 $96 $0 May Jun 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S Price is $ 581.11 on American Airlines Price is $ 564.1 on American Airlines Price is $ 554.1 on American Airlines Price is $ 538.2 on American Airlines Price is $ 504.1 on American Airlines Price is $ 408.1 on American Airlines Price is $ 335.1 on American Airlines

Cheap ISP to SDF Flights

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Interesting Facts About Flights from Islip to Louisville (ISP to SDF)

Question : How often is the Long Island MacArthur Airport (ISP) to Louisville International Airport (SDF) route delayed?
Answer : The Ronkonkoma to Louisville route has been particularly poor at getting passengers to their destination on time and currently ranks among the worst in the world. When a flight is delayed, it's a 20-minute delay on average.

Question : What is the cheapest round-trip ticket you can get to Louisville?
Answer : American Airlines is the leader in keeping costs down for their passengers over the next three months. Fares are being booked at just $283 and, when compared to the high-end bookings of $659, it's quite a deal.

Question : Is the price you found a good deal?
Answer : Prices for this trip tend to change more than other flights in the United States. They can range from $283 to $659. However, the sooner you book, the better price you tend to get.

Question : Can you cut down on flight costs by changing the day of the week you travel to Louisville?
Answer : Monday is your cheapest day to fly in the month of June. Having flexibility in your travel plans means you can save more, so be sure to plan ahead when possible.

Question : Is this route your best bet for getting to Louisville with minimal delays?
Answer : The best measurement of overall promptness combines both on-time percentage and total delay minutes. ISP to SDF currently has 0 stars out of 5, earning it a far below-average performance compared to the rest of the world.

Question : How long do most people stay in Louisville?
Answer : Of course you're not most people, but if you were, you'd stay roughly eight days.

Question : In the next four weeks, what day should you book your trip?
Answer : As of May 29th, the best day for booking to Louisville (SDF) is May 31st. It costs $283, which is 40% below the average price to book the same route.