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$342+ 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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — ISP
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap 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 July 29, 2025.

Round-trip from

$342
(Southwest)

Popular in

December

Cheapest in

October

Average price

$354
From Kansas City to Islip Long Island
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
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Find 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 July 29, 2025.

This Southwest deal was found by Cheapflights users on 7/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/274:25 pmMCI - ISP
1 stop4h 40mSouthwest
Wed 9/35:30 amISP - MCI
1 stop7h 05mSouthwest
Deal found 7/28$342
This Trip.com deal was found by Cheapflights users on 7/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/710:30 amMCI - ISP
2 stops12h 17mMultiple Airlines
Sun 8/106:00 amISP - MCI
1 stop10h 17mMultiple Airlines
Deal found 7/28$599

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 July 29, 2025.
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

Wed 8/27

4:25 pm-10:05 pm

1 stop4h 40m

Islip Long Island

Wed 9/3

5:30 am-11:35 am

1 stop7h 05m

$342

Kansas CityIslip

MCI - ISP

MCIISP

Kansas City

Thu 8/7

10:30 am-11:47 pm

2 stops12h 17m

Islip Long Island

Sun 8/10

6:00 am-3:17 pm

1 stop10h 17m

$599

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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, January is the cheapest month in which you can book a flight from Kansas City to Islip, New York (average of $108). Flying from Kansas City to Islip, New York in November is currently the most expensive (average of $213). 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 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 July 29, 2025.
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
4,238 reviews

Entertainment

7.5

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,238 reviews
Southwest
8.0
Very good
4,238 reviews

Entertainment

7.5

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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.

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

    Southwest, at $342, was found to be the cheapest airline from Kansas City to Islip, New York..

  • 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, January is the cheapest month in which you can book a flight from Kansas City to Islip, New York (average of $108). Flying from Kansas City to Islip, New York in November is currently the most expensive (average of $213). 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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Alternative routes for Kansas City to Islip

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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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$290Average$391FlexibilityNo cancel feeOn-time63%

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