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$172+ Cheap flights from Islip, NY to Detroit (ISP - DTT)

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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — DTT
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Cheap flight deals from Islip to Detroit

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Detroit (DTT). 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 October 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$172
(Mytrip)

Popular in

December

Cheapest in

January

Average price

$225
Provider with most accurate pricing for Islip Long Island-Detroit (DTT) flight deals.
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Provider most trusted by Cheapflights users for Islip Long Island-Detroit (DTT) flights.
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From Islip Long Island to Detroit (DTT)
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Highest demand for flights based on searches. 10% potential increase in price ($26 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Islip to Detroit

Cheapest flights from Islip to Detroit
Explore the most affordable flight options available from Islip to Detroit. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.

This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/124:58 pmISP - DTW
1 stop25h 02mFrontier
Sun 11/1612:24 pmDTW - ISP
1 stop22h 13mFrontier
Deal found 10/28$172
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/124:58 pmISP - DTW
2 stops22h 17mMultiple Airlines
Sun 11/168:00 pmDTW - ISP
1 stop14h 37mMultiple Airlines
Deal found 10/28$231
This Booking.com deal was found by Cheapflights users on 10/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/14:58 pmISP - DTW
1 stop26h 02mFrontier
Mon 11/312:24 pmDTW - ISP
1 stop29h 18mFrontier
Deal found 10/28$240
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/14:58 pmISP - DTW
2 stops19h 31mMultiple Airlines
Mon 11/38:00 pmDTW - ISP
1 stop21h 42mMultiple Airlines
Deal found 10/28$377
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/28:49 amISP - DTW
2 stops31h 30mMultiple Airlines
Tue 11/46:10 amDTW - ISP
1 stop11h 32mMultiple Airlines
Deal found 10/29$395
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/159:59 amISP - DTW
1 stop8h 01mMultiple Airlines
Sat 11/158:05 pmDTW - ISP
3 stops18h 49mMultiple Airlines
Deal found 10/28$607
This Southwest deal was found by Cheapflights users on 10/28. 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 11/111:55 amISP - DTW
2 stops9h 35mSouthwest
Mon 11/31:15 pmDTW - ISP
2 stops8h 50mSouthwest
Deal found 10/28$767
This Frontier deal was found by Cheapflights users on 10/28. 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 11/2611:03 amISP - DTW
1 stop7h 05mFrontier
Sun 11/3011:26 amDTW - ISP
1 stop8h 04mFrontier
Deal found 10/28$930

Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to Detroit 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 October 29, 2025.
Use the filters below to find and compare flights from Islip to Detroit that are best for you.

Fly from

Islip

Fly to

Detroit

Route

Depart

Return

Price

IslipDetroit

ISP - DTW

ISPDTW

Islip Long Island

Wed 11/12

4:58 pm-6:00 pm

1 stop25h 02m

Detroit Metropolitan Wayne County

Sun 11/16

12:24 pm-10:37 am

1 stop22h 13m

$172

IslipDetroit

ISP - DTW

ISPDTW

Islip Long Island

Wed 11/12

4:58 pm-3:15 pm

2 stops22h 17m

Detroit Metropolitan Wayne County

Sun 11/16

8:00 pm-10:37 am

1 stop14h 37m

$231

IslipDetroit

ISP - DTW

ISPDTW

Islip Long Island

Sat 11/15

9:59 am-6:00 pm

1 stop8h 01m

Detroit Metropolitan Wayne County

Sat 11/15

8:05 pm-2:54 pm

3 stops18h 49m

$607

IslipDetroit

ISP - DTW

ISPDTW

Islip Long Island

Wed 11/26

11:03 am-6:08 pm

1 stop7h 05m

Detroit Metropolitan Wayne County

Sun 11/30

11:26 am-7:30 pm

1 stop8h 04m

$930

IslipDetroit

ISP - DTW

ISPDTW

Islip Long Island

Sat 11/29

6:00 am-8:03 pm

1 stop14h 03m

$552

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Compare providers for flights from Islip to Detroit

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 Islip to Detroit in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Islip, New York-Detroit flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Islip, New York-Detroit flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Islip, New York-Detroit flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Islip, New York-Detroit flights, Cheapflights users trust Expedia the most. Expedia 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 Islip, New York-Detroit 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 Islip to Detroit

Have a flexible travel schedule? Discover the best time to fly to Detroit from Islip 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 Islip to Detroit

What is the cheapest month to book a flight from Islip, New York to Detroit?

Currently, March is the cheapest month in which you can book a flight from Islip, New York to Detroit (average of $49). Flying from Islip, New York to Detroit in January is currently the most expensive (average of $108). 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 Islip to Detroit. 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 Islip, New York to Detroit?

    Frontier can get you from Islip, New York to Detroit in just under 25h 02m. Your travel time can differ by up to . There are 539 mi between Islip, New York and Detroit.

  • Can I find deals for flights from Islip to Detroit that include hotel bookings?

    Yes. In addition to deals on Islip to Detroit flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Islip to Detroit?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to Detroit.

  • Can I find deals for business class flights from Islip to Detroit?

    Yes. Cheapflights offers flight deals from Islip to Detroit 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 Islip, New York to Detroit?

    Currently, March is the cheapest month in which you can book a flight from Islip, New York to Detroit (average of $49). Flying from Islip, New York to Detroit in January is currently the most expensive (average of $108). 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 Detroit?

Book flights to Detroit if you plan to visit one of these locations
Roseville
Port Huron

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