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Islip

$105+ 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 4/4. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — ISP
Apr 22 — Apr 291
Wed 4/22
Wed 4/29
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 March 23, 2026.

This Frontier deal was found by Cheapflights users on 3/21. 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.
Sun 4/56:59 pm
DTW
-
ISP
1 stop6h 39m
Frontier
Thu 4/95:30 am
ISP
-
DTW
1 stop12h 24m
Frontier
Deal found 3/21$235
This Expedia deal was found by Cheapflights users on 3/22. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1112:35 pm
DTW
-
ISP
1 stop21h 28m
Frontier
Sun 6/1410:48 am
ISP
-
DTW
1 stop24h 59m
Frontier
Deal found 3/22$250
This Frontier deal was found by Cheapflights users on 3/22. 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 4/26:49 pm
DTW
-
ISP
1 stop6h 37m
Frontier
Sun 4/57:59 pm
ISP
-
DTW
1 stop13h 00m
Frontier
Deal found 3/22$260
This Expedia deal was found by Cheapflights users on 3/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/38:01 pm
DTW
-
ISP
1 stop14h 29m
Frontier
Tue 4/75:43 pm
ISP
-
DTW
1 stop17h 03m
Frontier
Deal found 3/19$270
This Frontier deal was found by Cheapflights users on 3/22. 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.
Mon 4/63:59 pm
DTW
-
ISP
1 stop8h 24m
Frontier
Sun 4/127:59 pm
ISP
-
DTW
1 stop13h 00m
Frontier
Deal found 3/22$280
This Kiwi.com deal was found by Cheapflights users on 3/19. 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 4/310:05 am
DTW
-
ISP
1 stop14h 18m
Multiple Airlines
Tue 4/76:00 am
ISP
-
DTW
2 stops26h 02m
Multiple Airlines
Deal found 3/19$299
This Frontier deal was found by Cheapflights users on 3/22. 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.
Wed 4/11:08 pm
DTW
-
ISP
1 stop6h 51m
Frontier
Sun 4/57:59 pm
ISP
-
DTW
1 stop13h 00m
Frontier
Deal found 3/22$315
This Kiwi.com deal was found by Cheapflights users on 3/20. 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 4/1711:54 am
DTW
-
ISP
2 stops23h 16m
Multiple Airlines
Fri 4/244:07 pm
ISP
-
DTW
1 stop18h 24m
Multiple Airlines
Deal found 3/20$337
This Southwest deal was found by Cheapflights users on 3/18. 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.
Sun 5/244:20 pm
DTW
-
ISP
1 stop6h 30m
Southwest
Wed 5/274:10 pm
ISP
-
DTW
1 stop6h 20m
Southwest
Deal found 3/18$353
This Kiwi.com deal was found by Cheapflights users on 3/20. 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.
Sat 4/49:28 pm
DTW
-
ISP
2 stops13h 47m
Multiple Airlines
Wed 4/88:00 am
ISP
-
DTW
1 stop25h 10m
Multiple Airlines
Deal found 3/20$362
This Frontier deal was found by Cheapflights users on 3/22. 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.
Mon 4/63:59 pm
DTW
-
ISP
1 stop8h 24m
Frontier
Fri 4/1011:51 am
ISP
-
DTW
1 stop6h 53m
Frontier
Deal found 3/22$380

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 March 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$235
(Frontier)

One-way from

$105
(Frontier)

Popular in

November

Cheapest in

February

Average price

$156
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. 10% potential increase in price ($17 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 23, 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Sun 4/5

6:59 pm-1:38 am

1 stop6h 39m

Islip Long Island

Thu 4/9

5:30 am-5:54 pm

1 stop12h 24m

$235

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Sat 4/4

12:10 pm-6:39 pm

1 stop6h 29m

Islip Long Island

Tue 4/7

8:00 am-5:52 pm

1 stop9h 52m

$260

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Fri 4/17

11:54 am-11:10 am

2 stops23h 16m

Islip Long Island

Fri 4/24

4:07 pm-10:31 am

1 stop18h 24m

$337

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Sun 5/24

4:20 pm-10:50 pm

1 stop6h 30m

Islip Long Island

Wed 5/27

4:10 pm-10:30 pm

1 stop6h 20m

$353

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Sun 5/3

5:09 pm-11:00 am

2 stops41h 51m

Islip Long Island

Sun 5/10

11:00 am-12:14 pm

1 stop25h 14m

$380

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Fri 7/10

12:35 pm-10:03 am

1 stop21h 28m

Islip Long Island

Mon 7/13

10:48 am-11:47 am

1 stop24h 59m

$380

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Thu 4/9

6:49 pm-1:26 am

1 stop6h 37m

Islip Long Island

Sun 4/12

7:59 pm-8:59 am

1 stop13h 00m

$380
Quickest round-trip

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Sat 4/18

5:50 am-11:35 am

1 stop5h 45m

Islip Long Island

Sat 4/25

4:40 pm-11:25 pm

1 stop6h 45m

$397

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Fri 4/17

5:35 am-11:50 am

1 stop6h 15m

Islip Long Island

Fri 4/24

6:00 am-12:20 pm

1 stop6h 20m

$397
Cheapest one-way

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Sat 4/4

12:10 pm-6:39 pm

1 stop6h 29m

$105

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/20

Showing 1-10 of 16 resultsSorted by cheapest first
1
2
  • 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, May is the cheapest month in which you can book a flight from Detroit Metropolitan Wayne County Airport to Islip, New York (average of $49). Flying from Detroit Metropolitan Wayne County Airport to Islip, New York in June 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.

  • 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 6h 30m. Airlines will cover a distance of 539 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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, May is the cheapest month in which you can book a flight from Detroit Metropolitan Wayne County Airport to Islip, New York (average of $49). Flying from Detroit Metropolitan Wayne County Airport to Islip, New York in June 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

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