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Islip

$355+ Cheap flights from Madison to Islip (MSN - 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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
MSN — ISP
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheap flight deals from Madison to Islip

Discover tips and strategies to find the most affordable flight options for your journey from Madison (MSN) 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 septiembre 11, 2025.

Round-trip from

$355
(Frontier)

Popular in

March

Cheapest in

November

Average price

$419
From Madison Truax Field to Islip Long Island
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Highest demand for flights based on searches. 6% potential increase in price ($31 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Madison to Islip

Cheapest flights from Madison to Islip
Explore the most affordable flight options available from Madison to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

This Frontier deal was found by Cheapflights users on 9/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/148:00 pmMSN - ISP
2 stops13h 55mFrontier
dom. 11/169:27 pmISP - MSN
2 stops22h 48mFrontier
Deal found 9/10$355
This Frontier deal was found by Cheapflights users on 9/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/138:00 pmMSN - ISP
2 stops13h 37mFrontier
dom. 11/168:49 amISP - MSN
2 stops11h 26mFrontier
Deal found 9/11$479

Cheapflights Fare Finder

 
Customize your flight search to find flights from Madison 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 septiembre 11, 2025.
Use the filters below to find and compare flights from Madison to Islip that are best for you.

Fly from

Madison

Fly to

Islip

Route

Depart

Return

Price

MadisonIslip

MSN - ISP

MSNISP

Madison Truax Field

vie. 11/14

8:00 pm-10:55 am

2 stops13h 55m

Islip Long Island

dom. 11/16

9:27 pm-7:15 pm

2 stops22h 48m

$355

MadisonIslip

MSN - ISP

MSNISP

Madison Truax Field

jue. 11/13

8:00 pm-10:37 am

2 stops13h 37m

Islip Long Island

dom. 11/16

8:49 am-7:15 pm

2 stops11h 26m

$479

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Best time to book a flight from Madison to Islip

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

What is the cheapest month to book a flight from Madison to Islip?

Currently, January is the cheapest month in which you can book a flight from Madison to Islip (average of $108). Flying from Madison to Islip 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.

Related info for your journey

Find useful and relevant information for your journey from Madison 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 Madison to Islip?

    Frontier can get you from Madison to Islip in just under 13h 55m. Your travel time can differ by up to . The distance between Madison and Islip is about 848 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Madison 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 Madison to Islip?

    Currently, January is the cheapest month in which you can book a flight from Madison to Islip (average of $108). Flying from Madison to Islip 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
Southampton

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