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$105+ Cheap flights from Islip, NY to Detroit (ISP - DTT)

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 1/2. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — DTT
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
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Cheap 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 December 15, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/11. 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 12/152:25 pmISP - DTW
2 stops10h 54mMultiple Airlines
Wed 12/176:00 amDTW - ISP
1 stop16h 44mMultiple Airlines
Deal found 12/11$397
This Kiwi.com deal was found by Cheapflights users on 12/12. 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.
Tue 12/1611:08 amISP - DTW
1 stop10h 19mMultiple Airlines
Wed 12/176:15 amDTW - ISP
2 stops28h 45mMultiple Airlines
Deal found 12/12$657
This Kiwi.com deal was found by Cheapflights users on 12/12. 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 12/276:00 amISP - DTW
1 stop19h 19mMultiple Airlines
Wed 12/317:22 pmDTW - ISP
1 stop16h 03mMultiple Airlines
Deal found 12/12$679
This Frontier deal was found by Cheapflights users on 12/12. 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 12/226:25 amISP - DTW
1 stop7h 28mFrontier
Sat 12/2711:01 amDTW - ISP
1 stop12h 58mFrontier
Deal found 12/12$732
This Southwest deal was found by Cheapflights users on 12/12. 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 12/165:40 amISP - DTW
1 stop6h 45mSouthwest
Wed 12/173:45 pmDTW - ISP
1 stop6h 20mSouthwest
Deal found 12/12$757
This Frontier deal was found by Cheapflights users on 12/11. 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 12/236:25 amISP - DTW
1 stop7h 28mFrontier
Sat 12/2711:01 amDTW - ISP
1 stop12h 58mFrontier
Deal found 12/11$761
This Southwest deal was found by Cheapflights users on 12/11. 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 12/1512:55 pmISP - DTW
2 stops8h 30mSouthwest
Wed 12/176:10 amDTW - ISP
2 stops9h 10mSouthwest
Deal found 12/11$767

Find 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 December 15, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$177
(Kiwi.com)

One-way from

$105
(Trip.com)

Popular in

December

Cheapest in

January

Average price

$262
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.
Search Deals
From Islip Long Island to Detroit (DTT)
Search Deals
One-way flight from Islip Long Island to Detroit (DTT)
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($10 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 15, 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

Sat 12/27

6:00 am-1:19 am

1 stop19h 19m

Detroit Metropolitan Wayne County

Wed 12/31

7:22 pm-11:25 am

1 stop16h 03m

$679

IslipDetroit

ISP - DTW

ISPDTW

Islip Long Island

Mon 12/22

6:25 am-1:53 pm

1 stop7h 28m

Detroit Metropolitan Wayne County

Sat 12/27

11:01 am-11:59 pm

1 stop12h 58m

$732

IslipDetroit

ISP - DTW

ISPDTW

Islip Long Island

Tue 12/23

6:25 am-1:53 pm

1 stop7h 28m

Detroit Metropolitan Wayne County

Sun 12/28

10:55 am-7:40 pm

1 stop8h 45m

$761

IslipDetroit

ISP - DTW

ISPDTW

Islip Long Island

Fri 1/2

9:21 am-1:00 pm

1 stop27h 39m

$105

IslipDetroit

ISP - DTW

ISPDTW

Islip Long Island

Tue 12/23

6:25 am-1:53 pm

1 stop7h 28m

$161

IslipDetroit

ISP - DTW

ISPDTW

Islip Long Island

Thu 12/18

12:20 pm-7:38 pm

1 stop7h 18m

$161

IslipDetroit

ISP - DTW

ISPDTW

Islip Long Island

Fri 12/19

8:35 pm-8:25 am

1 stop11h 50m

$187

IslipDetroit

ISP - DTW

ISPDTW

Islip Long Island

Fri 1/2

2:25 pm-11:51 pm

2 stops9h 26m

$261

IslipDetroit

ISP - DTW

ISPDTW

Islip Long Island

Sat 2/21

11:41 am-9:59 pm

1 stop10h 18m

$317

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/12

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 December.
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 June is currently the most expensive (average of $85). 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.

How often are flights from Islip to Detroit delayed?

About 0% of weekly flights between Islip and Detroit have experienced delays in the past year, with the average delay time being 0 minutes.

What is the most punctual flight time for Islip to Detroit flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Friday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.

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 7h 28m. 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 June is currently the most expensive (average of $85). 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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