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Islip

$70+ 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — ISP
Mar 9 — Mar 161
Mon 3/9
Mon 3/16
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 February 7, 2026.

This Trip.com deal was found by Cheapflights users on 2/6. 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 3/195:05 am
DTW
-
ISP
1 stop10h 44m
Multiple Airlines
Sun 3/224:34 pm
ISP
-
DTW
1 stop27h 59m
Multiple Airlines
Deal found 2/6$325
This Southwest deal was found by Cheapflights users on 2/7. 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.
Fri 5/223:35 pm
DTW
-
ISP
1 stop4h 50m
Southwest
Mon 5/256:00 am
ISP
-
DTW
2 stops8h 20m
Southwest
Deal found 2/7$372
This Southwest deal was found by Cheapflights users on 2/4. 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 3/195:30 am
DTW
-
ISP
1 stop6h 10m
Southwest
Sun 3/225:55 pm
ISP
-
DTW
1 stop6h 20m
Southwest
Deal found 2/4$377
This Southwest deal was found by Cheapflights users on 2/4. 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.
Fri 3/204:30 pm
DTW
-
ISP
2 stops7h 25m
Southwest
Sun 3/225:55 pm
ISP
-
DTW
1 stop6h 20m
Southwest
Deal found 2/4$382
This Kiwi.com deal was found by Cheapflights users on 2/5. 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 2/207:43 pm
DTW
-
ISP
2 stops15h 27m
Multiple Airlines
Tue 2/2411:59 am
ISP
-
DTW
1 stop28h 14m
Multiple Airlines
Deal found 2/5$438
This Southwest deal was found by Cheapflights users on 2/5. 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.
Fri 2/205:30 am
DTW
-
ISP
1 stop6h 45m
Southwest
Tue 2/246:00 am
ISP
-
DTW
1 stop6h 45m
Southwest
Deal found 2/5$447
This Frontier deal was found by Cheapflights users on 2/5. 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 2/196:59 pm
DTW
-
ISP
1 stop12h 39m
Frontier
Mon 2/238:23 am
ISP
-
DTW
1 stop9h 57m
Frontier
Deal found 2/5$590
This Frontier deal was found by Cheapflights users on 2/7. 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.
Fri 4/33:59 pm
DTW
-
ISP
1 stop8h 24m
Frontier
Mon 4/65:45 am
ISP
-
DTW
1 stop9h 28m
Frontier
Deal found 2/7$709

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 February 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$254
(Kiwi.com)

One-way from

$70
(Frontier)

Popular in

November

Cheapest in

February

Average price

$130
Provider with most accurate pricing for Detroit Metropolitan Wayne County-Islip Long Island flight deals.
Search Deals
Provider most trusted by Cheapflights users for Detroit Metropolitan Wayne County-Islip Long Island flights.
Search Deals
From Detroit Metropolitan Wayne County to Islip Long Island
Search Deals
One-way flight from Detroit Metropolitan Wayne County to Islip Long Island
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($14 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 7, 2026.
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 3/19

5:05 am-3:49 pm

1 stop10h 44m

Islip Long Island

Sun 3/22

4:34 pm-8:33 pm

1 stop27h 59m

$325

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Fri 5/22

3:35 pm-8:25 pm

1 stop4h 50m

Islip Long Island

Mon 5/25

6:00 am-2:20 pm

2 stops8h 20m

$372

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Thu 3/19

5:30 am-11:40 am

1 stop6h 10m

Islip Long Island

Sun 3/22

5:55 pm-12:15 am

1 stop6h 20m

$377

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Fri 3/20

4:30 pm-11:55 pm

2 stops7h 25m

Islip Long Island

Sun 3/22

5:55 pm-12:15 am

1 stop6h 20m

$382

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Fri 2/20

7:43 pm-11:10 am

2 stops15h 27m

Islip Long Island

Tue 2/24

11:59 am-4:13 pm

1 stop28h 14m

$438

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Sat 2/28

9:11 pm-7:48 am

1 stop10h 37m

$70

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/6

  • Most accurate provider: When it comes to deals on Detroit Metropolitan Wayne County Airport-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 Detroit Metropolitan Wayne County Airport-Islip, New York flight deals on Cheapflights vs. FlightHub >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 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 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 $48). Flying from Detroit Metropolitan Wayne County Airport to Islip, New York in December is currently the most expensive (average of $80). 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 Detroit to Islip. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 $48). Flying from Detroit Metropolitan Wayne County Airport to Islip, New York in December is currently the most expensive (average of $80). 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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