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Islip

$78+ 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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — ISP
Aug 22 — Aug 291
Fri 8/22
Fri 8/29
1 adult, Economy
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Cheap 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 August 17, 2025.

Round-trip from

$176
(FlightHub)

One-way from

$78
(Cheapflightsfares)

Popular in

November

Cheapest in

February

Average price

$180
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
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Highest demand for flights based on searches. 12% potential increase in price ($23 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find 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 August 17, 2025.

This FlightHub deal was found by Cheapflights users on 8/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/121:36 pmDTW - ISP
1 stop21h 19mFrontier
Sun 9/1411:25 amISP - DTW
1 stop21h 19mFrontier
Deal found 8/17$176
This Kiwi.com deal was found by Cheapflights users on 8/17. 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.
Fri 10/247:06 pmDTW - ISP
1 stop15h 31mMultiple Airlines
Mon 10/274:58 pmISP - DTW
1 stop20h 50mMultiple Airlines
Deal found 8/17$195
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 9/167:35 pmDTW - ISP
1 stop15h 05mMultiple Airlines
Tue 9/2311:25 amISP - DTW
1 stop11h 15mMultiple Airlines
Deal found 8/17$207
This Kiwi.com deal was found by Cheapflights users on 8/17. 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.
Fri 11/77:00 amDTW - ISP
1 stop6h 52mMultiple Airlines
Sun 11/99:27 pmISP - DTW
1 stop20h 33mMultiple Airlines
Deal found 8/17$228
This Frontier deal was found by Cheapflights users on 8/17. 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 10/256:35 pmDTW - ISP
2 stops14h 24mFrontier
Sun 10/269:47 pmISP - DTW
2 stops20h 40mFrontier
Deal found 8/17$231
This FlightHub deal was found by Cheapflights users on 8/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/102:52 pmDTW - ISP
2 stops25h 35mFrontier
Wed 9/1711:35 amISP - DTW
2 stops27h 11mFrontier
Deal found 8/17$245
This Frontier deal was found by Cheapflights users on 8/16. 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.
Thu 8/212:46 pmDTW - ISP
1 stop9h 13mFrontier
Sat 9/65:18 pmISP - DTW
2 stops16h 41mFrontier
Deal found 8/16$253
This Southwest deal was found by Cheapflights users on 8/17. 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 9/167:40 amDTW - ISP
2 stops7h 30mSouthwest
Tue 9/236:05 amISP - DTW
2 stops12h 20mSouthwest
Deal found 8/17$273
This Frontier deal was found by Cheapflights users on 8/17. 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.
Thu 8/212:46 pmDTW - ISP
1 stop9h 13mFrontier
Sun 8/249:01 pmISP - DTW
2 stops18h 11mFrontier
Deal found 8/17$274

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 August 17, 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

Fri 9/12

1:36 pm-10:55 am

1 stop21h 19m

Islip Long Island

Sun 9/14

11:25 am-8:44 am

1 stop21h 19m

$176

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Fri 10/24

7:06 pm-10:37 am

1 stop15h 31m

Islip Long Island

Sun 10/26

9:47 pm-8:38 am

1 stop10h 51m

$195

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Fri 10/24

7:06 pm-10:37 am

1 stop15h 31m

Islip Long Island

Mon 10/27

4:58 pm-1:48 pm

1 stop20h 50m

$195

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Sat 10/25

6:35 pm-8:59 am

2 stops14h 24m

Islip Long Island

Sun 10/26

9:47 pm-6:01 pm

1 stop20h 14m

$201

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Fri 10/24

4:58 pm-8:59 am

2 stops40h 01m

Islip Long Island

Sun 10/26

9:47 pm-6:01 pm

1 stop20h 14m

$201

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Fri 10/24

7:06 pm-10:37 am

1 stop15h 31m

Islip Long Island

Mon 10/27

9:49 am-5:12 pm

2 stops31h 23m

$201

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Wed 9/10

2:52 pm-4:27 pm

2 stops25h 35m

Islip Long Island

Wed 9/17

11:35 am-8:44 am

1 stop21h 09m

$201

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Tue 9/16

7:35 pm-10:40 am

1 stop15h 05m

Islip Long Island

Tue 9/23

11:25 am-10:40 pm

1 stop11h 15m

$207

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Thu 10/16

1:24 pm-8:42 pm

1 stop7h 18m

$78

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Sat 9/13

3:42 pm-9:04 am

2 stops17h 22m

$126

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Showing 1-10 of 16 results
1
2

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, January is the cheapest month in which you can book a flight from Detroit Metropolitan Wayne County Airport to Islip, New York (average of $108). Flying from Detroit Metropolitan Wayne County Airport 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.

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 August 17, 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 in the morning tend to be the most expensive. A flight at noon could potentially save you up to 27% on airfare.

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 August 17, 2025.
Peruse reviews from past customers who have flown with Southwest from Detroit Metropolitan Wayne County Airport 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
4,246 reviews

Overall

8.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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.

  • What is the cheapest airline to fly from Detroit Metropolitan Wayne County Airport to Islip, New York round-trip?

    Flying on Southwest is currently your cheapest option to Islip, New York, with prices starting at $286.

  • 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, January is the cheapest month in which you can book a flight from Detroit Metropolitan Wayne County Airport to Islip, New York (average of $108). Flying from Detroit Metropolitan Wayne County Airport 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?

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Top airline flying from Detroit to Islip

Discover the top airline that operate flights from Detroit 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 August 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$286Average$376FlexibilityNo cancel feeOn-time63%

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