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$374+ Cheap flights from Kansas City to Islip, NY (MCI - ISP)

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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — ISP
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Cheap flight deals from Kansas City to Islip

Cheapest flights from Kansas City to Islip
Explore the most affordable flight options available from Kansas City to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/25. 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.
Thu 3/54:24 pm
MCI
-
ISP
1 stop19h 23m
Multiple Airlines
Sun 3/85:08 pm
ISP
-
MCI
2 stops24h 15m
Multiple Airlines
Deal found 1/25$374
This Southwest deal was found by Cheapflights users on 1/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/55:50 pm
MCI
-
ISP
1 stop5h 05m
Southwest
Sun 3/85:40 pm
ISP
-
MCI
1 stop7h 25m
Southwest
Deal found 1/25$383
This Southwest deal was found by Cheapflights users on 1/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/261:40 pm
MCI
-
ISP
2 stops7h 30m
Southwest
Fri 6/56:00 am
ISP
-
MCI
1 stop5h 05m
Southwest
Deal found 1/26$461
This Kiwi.com deal was found by Cheapflights users on 1/25. 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.
Tue 1/275:04 pm
MCI
-
ISP
2 stops41h 01m
Multiple Airlines
Mon 2/27:43 pm
ISP
-
MCI
1 stop21h 26m
Multiple Airlines
Deal found 1/25$850
This Southwest deal was found by Cheapflights users on 1/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/272:00 pm
MCI
-
ISP
1 stop6h 55m
Southwest
Mon 2/26:00 am
ISP
-
MCI
1 stop5h 35m
Southwest
Deal found 1/25$887

Find flight deals from Kansas City to Islip

Discover tips and strategies to find the most affordable flight options for your journey from Kansas City (MCI) to Islip (ISP). 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 January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$374
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$366
Provider with most accurate pricing for Kansas City-Islip Long Island flight deals.
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Provider most trusted by Cheapflights users for Kansas City-Islip Long Island flights.
Search Deals
From Kansas City to Islip Long Island
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kansas City to Islip 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 January 26, 2026.
Use the filters below to find and compare flights from Kansas City to Islip that are best for you.

Fly from

Kansas City

Fly to

Islip

Route

Depart

Return

Price

Kansas CityIslip

MCI - ISP

MCIISP

Kansas City

Thu 3/5

4:24 pm-12:47 pm

1 stop19h 23m

Islip Long Island

Sun 3/8

5:08 pm-4:23 pm

2 stops24h 15m

$374

Kansas CityIslip

MCI - ISP

MCIISP

Kansas City

Thu 3/5

5:50 pm-11:55 pm

1 stop5h 05m

Islip Long Island

Sun 3/8

5:40 pm-12:05 am

1 stop7h 25m

$383

Kansas CityIslip

MCI - ISP

MCIISP

Kansas City

Tue 5/26

1:40 pm-10:10 pm

2 stops7h 30m

Islip Long Island

Fri 6/5

6:00 am-10:05 am

1 stop5h 05m

$461

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Compare providers for flights from Kansas City to Islip

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 Kansas City to Islip in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

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

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

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

Currently, July is the cheapest month in which you can book a flight from Kansas City to Islip, New York (average of $138). Flying from Kansas City to Islip, New York in June is currently the most expensive (average of $216). 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.

How much does it cost to fly round-trip from Kansas City to Islip, New York?

Reviews of airlines servicing Islip

Get insights into the airlines that provide service to Islip. 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 Islip. Reviews last updated January 26, 2026.
Peruse reviews from past customers who have flown with Southwest from Kansas City to Islip to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,268 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,268 reviews
Southwest
8.0
Very good
4,268 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from Kansas City to Islip. 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 Kansas City to Islip, New York?

    For as low as $383, Southwest can have you in Islip, New York from Kansas City in 5h 05m. There are 1145 mi between Kansas City and Islip, New York.

  • What is the cheapest airline to fly from Kansas City to Islip, New York round-trip?

    Southwest, at $290, was found to be the cheapest airline from Kansas City to Islip, New York.. Southwest is priced at 27% lower than the current average price of a flight leaving 3 months from now.

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

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

  • How can I find direct flights from Kansas City to Islip?

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

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

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

    Currently, July is the cheapest month in which you can book a flight from Kansas City to Islip, New York (average of $138). Flying from Kansas City to Islip, New York in June is currently the most expensive (average of $216). 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 Islip?

Book flights to Islip if you plan to visit one of these locations
Riverhead

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Top airline flying from Kansas City to Islip

Discover the top airline that operate flights from Kansas City to Islip. 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 January 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$290Average$407FlexibilityNo cancel feeOn-time63%

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