$140+ Cheap flights from Detroit Metropolitan Wayne County Airport to Islip, NY (DTW - ISP)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/6. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — ISP
Oct 18 — Oct 251
Round-trip
1 adult, Economy
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Find cheap flights from Detroit to Islip with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Detroit to Islip
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Cheapest flights from Detroit to IslipExplore 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 September 18, 2026.
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 September 18, 2026.
This Southwest deal was found by Cheapflights users on 9/17. 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.
Sat 10/176:20 am -
2 stops9h 50m
Sat 10/243:50 pm -
1 stop6h 10m
Deal found 9/17![Southwest logo]()
$276
This Frontier deal was found by Cheapflights users on 9/16. 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 11/55:49 pm -
1 stop24h 07m
Sat 11/146:33 pm -
1 stop14h 19m
Deal found 9/16![Frontier logo]()
$278
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 10/166:51 pm -
1 stop16h 29m
Mon 10/196:55 pm -
1 stop16h 44m
Deal found 9/15![Multiple Airlines logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 10/98:59 pm -
1 stop20h 31m
Wed 10/1412:00 pm -
1 stop5h 50m
Deal found 9/14![Multiple Airlines logo]()
$293
This Southwest deal was found by Cheapflights users on 9/13. 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 11/126:50 am -
2 stops10h 15m
Tue 11/174:05 pm -
1 stop6h 05m
Deal found 9/13![Southwest logo]()
$294
This Southwest deal was found by Cheapflights users on 9/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/51:30 pm -
2 stops10h 05m
Sat 11/143:30 pm -
1 stop6h 35m
Deal found 9/16![Southwest logo]()
$300
This Trip.com deal was found by Cheapflights users on 9/14. 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 10/18:57 pm -
1 stop20h 01m
Mon 10/55:43 pm -
1 stop17h 52m
Deal found 9/14![Frontier logo]()
$314
Best flights from Detroit to IslipDiscover carefully curated flight deals from Detroit to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 18, 2026.
Discover carefully curated flight deals from Detroit to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 18, 2026.
This Southwest deal was found by Cheapflights users on 9/13. 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 11/125:00 am -
1 stop6h 45m
Tue 11/174:05 pm -
1 stop6h 05m
Deal found 9/13![Southwest logo]()
$289
This CheapOair deal was found by Cheapflights users on 9/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:57 pm -
1 stop20h 01m
Fri 10/25:43 pm -
1 stop17h 52m
Deal found 9/13![Frontier logo]()
$340
This Southwest deal was found by Cheapflights users on 9/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/51:30 pm -
2 stops10h 05m
Sat 11/143:30 pm -
1 stop6h 35m
Deal found 9/16![Southwest logo]()
$300
This CheapOair deal was found by Cheapflights users on 9/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/228:59 pm -
1 stop21h 01m
Sun 10/256:25 pm -
1 stop17h 14m
Deal found 9/14![Frontier logo]()
$348
This Southwest deal was found by Cheapflights users on 9/17. 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.
Sat 10/177:10 am -
2 stops9h 00m
Sat 10/2412:20 pm -
2 stops8h 15m
Deal found 9/17![Southwest logo]()
$328
This Trip.com deal was found by Cheapflights users on 9/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:46 pm -
1 stop22h 44m
Sun 10/116:25 pm -
1 stop17h 14m
Deal found 9/16![Frontier logo]()
$352
This Southwest deal was found by Cheapflights users on 9/14. 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 1/1111:20 am -
2 stops10h 10m
Sat 1/1611:20 am -
2 stops6h 35m
Deal found 9/14![Southwest logo]()
$354
This Southwest deal was found by Cheapflights users on 9/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/74:00 pm -
1 stop6h 40m
Sun 10/115:40 am -
2 stops7h 45m
Deal found 9/16![Southwest logo]()
$365
Last-minute flights from Detroit to IslipDiscover last-minute flight deals from Detroit to Islip. Data last updated September 18, 2026 and is based on user searches.
Discover last-minute flight deals from Detroit to Islip. Data last updated September 18, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 9/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:57 pm -
1 stop20h 01m
Fri 10/25:43 pm -
1 stop17h 52m
Deal found 9/13![Frontier logo]()
$340
This Trip.com deal was found by Cheapflights users on 9/14. 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.
Tue 9/2912:34 pm -
1 stop28h 24m
Sat 10/35:43 pm -
1 stop17h 52m
Deal found 9/14![Frontier logo]()
$349
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Wed 9/306:51 pm -
1 stop15h 26m
Wed 10/1412:00 pm -
1 stop5h 50m
Deal found 9/15![Multiple Airlines logo]()
$339
This Trip.com deal was found by Cheapflights users on 9/14. 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 10/18:57 pm -
1 stop20h 01m
Mon 10/55:43 pm -
1 stop17h 52m
Deal found 9/14![Frontier logo]()
$314
This Trip.com deal was found by Cheapflights users on 9/15. 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 10/18:57 pm -
1 stop20h 01m
Wed 10/75:43 pm -
1 stop23h 22m
Deal found 9/15![Frontier logo]()
$345
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 10/98:59 pm -
1 stop20h 31m
Wed 10/1412:00 pm -
1 stop5h 50m
Deal found 9/14![Multiple Airlines logo]()
$293
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 10/166:51 pm -
1 stop16h 29m
Mon 10/196:55 pm -
1 stop16h 44m
Deal found 9/15![Multiple Airlines logo]()
$289
This Southwest deal was found by Cheapflights users on 9/17. 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.
Sat 10/176:20 am -
2 stops9h 50m
Sat 10/243:50 pm -
1 stop6h 10m
Deal found 9/17![Southwest logo]()
$276
This CheapOair deal was found by Cheapflights users on 9/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/228:59 pm -
1 stop21h 01m
Sun 10/256:25 pm -
1 stop17h 14m
Deal found 9/14![Frontier logo]()
$348
One-way flights from Detroit to IslipSearch for one-way flight options from Detroit to Islip. Find affordable one-way fares based on user searches. Data last updated September 18, 2026.
Search for one-way flight options from Detroit to Islip. Find affordable one-way fares based on user searches. Data last updated September 18, 2026.
This Frontier deal was found by Cheapflights users on 9/14. 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 11/69:47 am -
1 stop8h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Frontier logo]()
$140
This Frontier deal was found by Cheapflights users on 9/14. 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 11/246:00 am -
1 stop9h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Frontier logo]()
$145
This Southwest deal was found by Cheapflights users on 9/17. 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.
Thu 11/195:30 am -
1 stop10h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Southwest logo]()
$159
This CheapOair deal was found by Cheapflights users on 9/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2212:34 pm -
1 stop28h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Frontier logo]()
$161
This Frontier deal was found by Cheapflights users on 9/16. 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.
Fri 10/309:47 am -
1 stop8h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$169
This Frontier deal was found by Cheapflights users on 9/16. 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.
Mon 11/236:00 am -
1 stop9h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$171
This Frontier deal was found by Cheapflights users on 9/13. 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 10/111:28 am -
1 stop6h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Frontier logo]()
$180
This Frontier deal was found by Cheapflights users on 9/16. 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 10/299:47 am -
1 stop7h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$189
This Frontier deal was found by Cheapflights users on 9/16. 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.
Sat 10/316:25 am -
2 stops11h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$191
This Frontier deal was found by Cheapflights users on 9/17. 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.
Fri 9/2511:28 am -
1 stop6h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Frontier logo]()
$215
This Travelocity deal was found by Cheapflights users on 9/16. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/275:39 pm -
1 stop23h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$221
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 September 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $276 (Southwest) |
One-way from | $140 (Frontier) |
Popular in | June |
Cheapest in | February |
Average price | $256 |
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 7,457,451 searches. Data last updated September 18, 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
Cheapest round-trip
DetroitIslip
DTW Detroit Metropolitan Wayne County - ISP Islip Long Island
DTWISP
Detroit Metropolitan Wayne County
Tue 11/24
6:00 am-3:45 pm
1 stop9h 45m
Islip Long Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$145
DetroitIslip
DTW Detroit Metropolitan Wayne County - ISP Islip Long Island
DTWISP
Detroit Metropolitan Wayne County
Thu 11/19
5:30 am-4:15 pm
1 stop10h 45m
Islip Long Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$159
DetroitIslip
DTW Detroit Metropolitan Wayne County - ISP Islip Long Island
DTWISP
Detroit Metropolitan Wayne County
Tue 9/22
12:34 pm-4:58 pm
1 stop28h 24m
Islip Long Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$161
DetroitIslip
DTW Detroit Metropolitan Wayne County - ISP Islip Long Island
DTWISP
Detroit Metropolitan Wayne County
Fri 10/30
9:47 am-5:56 pm
1 stop8h 09m
Islip Long Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$169
DetroitIslip
DTW Detroit Metropolitan Wayne County - ISP Islip Long Island
DTWISP
Detroit Metropolitan Wayne County
Thu 10/1
11:28 am-6:03 pm
1 stop6h 35m
Islip Long Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$180
DetroitIslip
DTW Detroit Metropolitan Wayne County - ISP Islip Long Island
DTWISP
Detroit Metropolitan Wayne County
Thu 10/29
9:47 am-5:31 pm
1 stop7h 44m
Islip Long Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$189
Quickest round-trip
DetroitIslip
DTW Detroit Metropolitan Wayne County - ISP Islip Long Island
DTWISP
Detroit Metropolitan Wayne County
Sun 10/11
5:40 am-10:20 am
1 stop4h 40m
Islip Long Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$229
DetroitIslip
DTW Detroit Metropolitan Wayne County - ISP Islip Long Island
DTWISP
Detroit Metropolitan Wayne County
Sat 12/12
5:13 pm-9:01 am
2 stops15h 48m
Islip Long Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$251
DetroitIslip
DTW Detroit Metropolitan Wayne County - ISP Islip Long Island
DTWISP
Detroit Metropolitan Wayne County
Sun 10/11
8:59 pm-11:20 am
2 stops38h 21m
Islip Long Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$259
DetroitIslip
DTW Detroit Metropolitan Wayne County - ISP Islip Long Island
DTWISP
Detroit Metropolitan Wayne County
Thu 11/12
5:00 am-11:45 am
1 stop6h 45m
Islip Long Island
Tue 11/17
4:05 pm-10:10 pm
1 stop6h 05m
$289
Showing 1-10 of 18 resultsSorted by cheapest first
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
DTW-ISP
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.
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.
Traveling to a place near Islip?
Book flights to Islip if you plan to visit one of these locationsRiverhead
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