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$917+ Cheap flights from Islip, NY to Lexington (ISP - LEX)

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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — LEX
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from Islip to Lexington

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Lexington (LEX). 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 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$917
(United)

Popular in

October

Cheapest in

January

Average price

$512
Provider with most accurate pricing for Islip Long Island-Lexington Blue Grass flight deals.
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Provider most trusted by Cheapflights users for Islip Long Island-Lexington Blue Grass flights.
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From Islip Long Island to Lexington Blue Grass
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($28 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Islip to Lexington

Cheapest flights from Islip to Lexington
Explore the most affordable flight options available from Islip to Lexington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This United 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/149:59 amISP - LEX
2 stops27h 18mMultiple Airlines
Tue 12/92:10 pmLEX - ISP
2 stops20h 54mMultiple Airlines
Deal found 10/30$917
This United 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1212:40 pmISP - LEX
2 stops24h 37mMultiple Airlines
Wed 11/1910:40 amLEX - ISP
2 stops24h 24mMultiple Airlines
Deal found 10/30$977
This United 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/139:59 amISP - LEX
2 stops34h 55mMultiple Airlines
Tue 12/92:10 pmLEX - ISP
2 stops29h 35mMultiple Airlines
Deal found 10/30$998

Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to Lexington 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 30, 2025.
Use the filters below to find and compare flights from Islip to Lexington that are best for you.

Fly from

Islip

Fly to

Lexington

Route

Depart

Return

Price

IslipLexington

ISP - LEX

ISPLEX

Islip Long Island

Fri 11/14

9:59 am-1:17 pm

2 stops27h 18m

Lexington Blue Grass

Tue 12/9

2:10 pm-11:04 am

2 stops20h 54m

$917

IslipLexington

ISP - LEX

ISPLEX

Islip Long Island

Wed 11/12

12:40 pm-1:17 pm

2 stops24h 37m

Lexington Blue Grass

Wed 11/19

10:40 am-11:04 am

2 stops24h 24m

$977

IslipLexington

ISP - LEX

ISPLEX

Islip Long Island

Thu 11/13

9:59 am-8:54 pm

2 stops34h 55m

Lexington Blue Grass

Tue 12/9

2:10 pm-7:45 pm

2 stops29h 35m

$998

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Compare providers for flights from Islip to Lexington

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 Islip to Lexington in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 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 Islip, New York-Lexington flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Islip, New York-Lexington flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Islip, New York-Lexington flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Islip, New York-Lexington flights, Cheapflights users trust Expedia the most. Expedia 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 Islip, New York-Lexington 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 Islip to Lexington

Have a flexible travel schedule? Discover the best time to fly to Lexington from Islip 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 Islip to Lexington

What is the cheapest month to book a flight from Islip, New York to Lexington?

Currently, January is the cheapest month in which you can book a flight from Islip, New York to Lexington (average of $46). Flying from Islip, New York to Lexington in September is currently the most expensive (average of $152). 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.

Related info for your journey

Find useful and relevant information for your journey from Islip to Lexington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Islip to Lexington that include hotel bookings?

    Yes. In addition to deals on Islip to Lexington flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Islip to Lexington?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to Lexington.

  • Can I find deals for business class flights from Islip to Lexington?

    Yes. Cheapflights offers flight deals from Islip to Lexington 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 Islip, New York to Lexington?

    Currently, January is the cheapest month in which you can book a flight from Islip, New York to Lexington (average of $46). Flying from Islip, New York to Lexington in September is currently the most expensive (average of $152). 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

Traveling to a place near Lexington?

Book flights to Lexington if you plan to visit one of these locations
Georgetown
Berea
Frankfort

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