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Islip

$107+ 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 2/14. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — ISP
Mar 3 — Mar 101
Tue 3/3
Tue 3/10
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 1, 2026.

This Frontier deal was found by Cheapflights users on 1/29. 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.
Tue 3/38:48 pm
DTW
-
ISP
1 stop11h 52m
Frontier
Thu 3/55:07 pm
ISP
-
DTW
1 stop8h 34m
Frontier
Deal found 1/29$163
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Mon 2/162:08 pm
DTW
-
ISP
2 stops33h 34m
Multiple Airlines
Fri 2/208:33 am
ISP
-
DTW
1 stop8h 34m
Multiple Airlines
Deal found 2/1$297
This Southwest deal was found by Cheapflights users on 2/1. 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 3/245:15 am
DTW
-
ISP
1 stop6h 25m
Southwest
Tue 3/244:40 pm
ISP
-
DTW
1 stop6h 30m
Southwest
Deal found 2/1$377
This Southwest deal was found by Cheapflights users on 2/1. 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.
Mon 2/165:55 am
DTW
-
ISP
2 stops10h 50m
Southwest
Fri 2/205:35 am
ISP
-
DTW
2 stops10h 00m
Southwest
Deal found 2/1$503
This Frontier deal was found by Cheapflights users on 1/31. 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 stop13h 21m
Frontier
Deal found 1/31$619
This Frontier deal was found by Cheapflights users on 1/31. 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 2/279:55 pm
DTW
-
ISP
1 stop13h 11m
Frontier
Sun 3/18:33 am
ISP
-
DTW
1 stop7h 07m
Frontier
Deal found 1/31$624
This Frontier deal was found by Cheapflights users on 1/31. 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
Sat 2/218:23 pm
ISP
-
DTW
1 stop11h 41m
Frontier
Deal found 1/31$689
This Frontier deal was found by Cheapflights users on 1/29. 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 2/266:59 pm
DTW
-
ISP
1 stop12h 39m
Frontier
Mon 3/28:23 am
ISP
-
DTW
1 stop13h 21m
Frontier
Deal found 1/29$719
This Frontier deal was found by Cheapflights users on 1/31. 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 2/139:56 am
DTW
-
ISP
1 stop9h 18m
Frontier
Mon 2/168:23 am
ISP
-
DTW
1 stop12h 48m
Frontier
Deal found 1/31$764
This Frontier deal was found by Cheapflights users on 1/31. 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 2/209:56 am
DTW
-
ISP
1 stop9h 18m
Frontier
Sun 2/228:21 pm
ISP
-
DTW
1 stop13h 21m
Frontier
Deal found 1/31$838

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 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$163
(Frontier)

One-way from

$107
(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 1, 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

Tue 3/3

8:48 pm-8:40 am

1 stop11h 52m

Islip Long Island

Thu 3/5

5:07 pm-1:41 am

1 stop8h 34m

$163

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Mon 2/16

2:08 pm-11:42 pm

2 stops33h 34m

Islip Long Island

Fri 2/20

8:33 am-5:07 pm

1 stop8h 34m

$297

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Tue 3/24

5:15 am-11:40 am

1 stop6h 25m

Islip Long Island

Tue 3/24

4:40 pm-11:10 pm

1 stop6h 30m

$377

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Mon 2/16

5:55 am-4:45 pm

2 stops10h 50m

Islip Long Island

Fri 2/20

5:35 am-3:35 pm

2 stops10h 00m

$503

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Thu 2/19

6:59 pm-7:38 am

1 stop12h 39m

Islip Long Island

Sun 2/22

8:21 pm-9:42 am

1 stop13h 21m

$619

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Thu 2/19

6:59 pm-7:38 am

1 stop12h 39m

Islip Long Island

Mon 2/23

8:23 am-9:44 pm

1 stop13h 21m

$619

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Fri 2/27

9:55 pm-11:06 am

1 stop13h 11m

Islip Long Island

Sun 3/1

8:33 am-3:40 pm

1 stop7h 07m

$624

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Thu 2/19

6:59 pm-7:38 am

1 stop12h 39m

Islip Long Island

Sat 2/21

8:23 pm-8:04 am

1 stop11h 41m

$689

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Thu 2/26

6:59 pm-7:38 am

1 stop12h 39m

Islip Long Island

Mon 3/2

8:23 am-9:44 pm

1 stop13h 21m

$719

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Fri 2/13

9:56 am-7:14 pm

1 stop9h 18m

Islip Long Island

Mon 2/16

8:23 am-9:11 pm

1 stop12h 48m

$764

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Showing 1-10 of 11 results
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, 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.

  • 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 25m. 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, 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

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