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Islip

$81+ Cheap flights from Detroit Metropolitan Wayne County Airport to Islip, NY (DTW - ISP)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — ISP
Jan 24 — Jan 311
Sat 1/24
Sat 1/31
1 adult, Economy
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Cheap flight deals from Detroit to Islip

Cheapest flights from Detroit to Islip
Explore the most affordable flight options available from Detroit to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 25, 2025.

This Frontier deal was found by Cheapflights users on 12/24. 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.
Sat 12/2711:01 amDTW - ISP
1 stop12h 58mFrontier
Sun 1/48:24 pmISP - DTW
1 stop12h 29mFrontier
Deal found 12/24$911

Find flight deals from Detroit to Islip

Discover tips and strategies to find the most affordable flight options for your journey from Detroit (DTW) 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 December 25, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$197
(Frontier)

One-way from

$81
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$192
Provider with most accurate pricing for Detroit Metropolitan Wayne County-Islip Long Island flight deals.
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Provider most trusted by Cheapflights users for Detroit Metropolitan Wayne County-Islip Long Island flights.
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From Detroit Metropolitan Wayne County to Islip Long Island
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One-way flight from Detroit Metropolitan Wayne County to Islip Long Island
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($19 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Detroit 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 December 25, 2025.
Use the filters below to find and compare flights from Detroit Metropolitan Wayne County Airport to Islip that are best for you.

Fly from

Detroit

Fly to

Islip

Route

Depart

Return

Price

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Thu 1/8

11:41 am-7:45 pm

1 stop8h 04m

Islip Long Island

Sun 1/11

8:40 pm-10:33 am

1 stop13h 53m

$197

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Fri 1/9

10:43 am-6:40 pm

1 stop7h 57m

Islip Long Island

Tue 1/13

8:00 am-4:06 pm

1 stop8h 06m

$277

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Sun 1/11

5:01 pm-6:40 pm

1 stop25h 39m

Islip Long Island

Tue 1/13

8:00 am-4:06 pm

1 stop8h 06m

$277

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Thu 5/14

3:35 pm-8:25 pm

1 stop4h 50m

Islip Long Island

Sat 5/16

9:20 am-4:10 pm

1 stop6h 50m

$377

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Thu 1/8

6:50 am-4:15 pm

2 stops9h 25m

Islip Long Island

Sun 1/11

11:50 am-8:25 pm

2 stops8h 35m

$457

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Sat 1/10

11:47 am-7:08 pm

1 stop7h 21m

$81

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Thu 1/15

12:56 pm-7:50 pm

1 stop6h 54m

$81

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Fri 1/16

5:18 pm-5:52 pm

1 stop24h 34m

$93

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Fri 1/16

5:18 pm-11:10 am

2 stops17h 52m

$105

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Fri 1/23

11:39 am-6:38 pm

1 stop6h 59m

$115

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/24

Showing 1-10 of 12 results
1
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Compare providers for flights from Detroit 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 Detroit to Islip in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 Detroit Metropolitan Wayne County Airport-Islip, New York flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Detroit Metropolitan Wayne County Airport-Islip, New York flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Detroit Metropolitan Wayne County Airport-Islip, New York flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Detroit Metropolitan Wayne County Airport-Islip, New York flights, Cheapflights users trust eDreams the most. eDreams 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 Detroit Metropolitan Wayne County Airport-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 Detroit to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Detroit 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 Detroit Metropolitan Wayne County Airport to Islip

What is the cheapest month to book a flight from Detroit Metropolitan Wayne County Airport to Islip, New York?

Currently, March is the cheapest month in which you can book a flight from Detroit Metropolitan Wayne County Airport to Islip, New York (average of $44). Flying from Detroit Metropolitan Wayne County Airport to Islip, New York in February is currently the most expensive (average of $92). 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.

What is the cheapest time of day to fly from DTW to ISP?

Find hourly flight availability from Detroit to Islip. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 25, 2025.

One of the essential ways to save on airfare from Detroit Metropolitan Wayne County Airport to Islip, New York is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 68% on airfare.

Related info for your journey

Find useful and relevant information for your journey from Detroit 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 Detroit Metropolitan Wayne County Airport to Islip, New York?

    Departing from Detroit Metropolitan Wayne County Airport to Islip, New York will take you 8h 04m. Airlines will cover a distance of 539 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Detroit 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 Detroit Metropolitan Wayne County Airport to Islip, New York?

    Currently, March is the cheapest month in which you can book a flight from Detroit Metropolitan Wayne County Airport to Islip, New York (average of $44). Flying from Detroit Metropolitan Wayne County Airport to Islip, New York in February is currently the most expensive (average of $92). 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

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