What is the cheapest day to fly from Islip, New York to Detroit?

Travelers seeking maximum savings on their Islip, New York to Detroit flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Wednesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

How far in advance should I book a flight from Islip, New York to Detroit?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 35 days in advance, which can save you up to 94% on flights from Islip, New York to Detroit compared to booking the week you need them. Waiting 35 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $167. For sooner than that we have options available in the next 3 days from $317.

What is the cheapest month to fly from Islip, New York to Detroit?

The best pricing can be found in the month of April. Prices to Detroit from Islip, New York average $224. You can even find prices in April for less than $224, as users have found deals to Detroit from as low as $48. The month of December appears to be one of the more expensive times to travel to Detroit from Islip, New York. Flying in the targeted month can save you up to 41%.

What is the cheapest time of day to fly from ISP to DTT?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Islip, New York to Detroit as you normally would.

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 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 Islip, New York-Detroit flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

$138+ Flights from Islip, NY to Detroit

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Islip to Detroit 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 Islip to Detroit

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$268 (Frontier)
One-way from	$138 (Cheapflightsfares)
Popular in	December
Cheapest in	April
Average price	$206

Provider with most accurate pricing for Islip Long Island-Detroit (DTT) flight deals.

Search Deals

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. 12% potential increase in price ($32 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 2025

Search Deals

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 March 28, 2025.

Sat 4/59:04 pmISP - DTW

1 stop10h 56mFrontier

Sun 4/610:02 pmDTW - ISP

1 stop10h 08mFrontier

Deal found 3/27

$198

Thu 4/246:10 pmISP - DTW

1 stop4h 50mSouthwest

Tue 4/295:55 amDTW - ISP

1 stop6h 30mSouthwest

Deal found 3/27

$307

Fri 5/26:00 amISP - DTW

1 stop4h 41mJetBlue

Sat 5/35:40 pmDTW - ISP

1 stop3h 48mJetBlue

Deal found 3/26

$382

Thu 4/247:25 pmISP - DTW

2 stops23h 55mMultiple Airlines

Tue 4/291:56 pmDTW - ISP

3 stops23h 49mMultiple Airlines

Deal found 3/27

$633

Best flights from Islip to Detroit
Discover carefully curated flight deals from Islip to Detroit that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 28, 2025.

Thu 4/179:04 pmISP - DTW

1 stop12h 33mFrontier

Sun 4/2010:02 pmDTW - ISP

1 stop10h 08mFrontier

Deal found 3/27

$268

Thu 4/246:10 pmISP - DTW

1 stop4h 50mSouthwest

Tue 4/295:55 amDTW - ISP

1 stop6h 30mSouthwest

Deal found 3/27

$307

Fri 5/26:00 amISP - DTW

1 stop4h 41mJetBlue

Sat 5/35:40 pmDTW - ISP

1 stop3h 48mJetBlue

Deal found 3/26

$382

Thu 4/247:25 pmISP - DTW

2 stops23h 55mMultiple Airlines

Tue 4/291:56 pmDTW - ISP

3 stops23h 49mMultiple Airlines

Deal found 3/27

$633

Last-minute flights from Islip to Detroit
Discover last-minute flight deals from Islip to Detroit. Data last updated March 28, 2025 and is based on user searches.

Sat 4/59:04 pmISP - DTW

1 stop10h 56mFrontier

Sun 4/610:02 pmDTW - ISP

1 stop10h 08mFrontier

Deal found 3/27

$198

Thu 4/246:10 pmISP - DTW

1 stop4h 50mSouthwest

Tue 4/295:55 amDTW - ISP

1 stop6h 30mSouthwest

Deal found 3/27

$307

Thu 4/247:25 pmISP - DTW

2 stops23h 55mMultiple Airlines

Tue 4/291:56 pmDTW - ISP

3 stops23h 49mMultiple Airlines

Deal found 3/27

$633

One-way flights from Islip to Detroit
Search for one-way flight options from Islip to Detroit. Find affordable one-way fares based on user searches. Data last updated March 28, 2025.

Wed 4/169:44 amISP - DTW

1 stop7h 25mFrontier

Deal found 3/27

$138

Cheapflights Fare Finder

Use the filters below to find and compare flights from Islip to Detroit that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IslipDetroit

ISP - DTW

ISPDTW

Islip Long Island

Thu 4/17

9:04 pm-9:37 am

1 stop12h 33m

Detroit Metropolitan Wayne County

Sun 4/20

10:02 pm-8:10 am

1 stop10h 08m

$268

IslipDetroit

ISP - DTW

ISPDTW

Islip Long Island

Thu 4/24

6:10 pm-11:00 pm

1 stop4h 50m

Detroit Metropolitan Wayne County

Tue 4/29

5:55 am-12:25 pm

1 stop6h 30m

$307

IslipDetroit

ISP - DTW

ISPDTW

Islip Long Island

Fri 5/2

6:00 am-10:41 am

1 stop4h 41m

Detroit Metropolitan Wayne County

Sat 5/3

5:40 pm-9:28 pm

1 stop3h 48m

$382

IslipDetroit

ISP - DTW

ISPDTW

Islip Long Island

Thu 4/24

7:25 pm-7:20 pm

2 stops23h 55m

Detroit Metropolitan Wayne County

Tue 4/29

1:56 pm-1:45 pm

3 stops23h 49m

$633

IslipDetroit

ISP - DTW

ISPDTW

Islip Long Island

Wed 4/16

9:44 am-5:09 pm

1 stop7h 25m

$138

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Compare providers for flights from Islip to Detroit

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Islip to Detroit in March.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars

*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 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 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, April is the cheapest month in which you can book a flight from Islip, New York to Detroit (average of $257). Flying from Islip, New York to Detroit in March is currently the most expensive (average of $305). 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.

Rainfall in Detroit by month

In terms of precipitation, rainfall in Detroit ranges from 1.8 - 3.1 inches per month. August is typically the wettest month, when rainfall can reach 3.1 in. January is typically the driest time to visit Detroit when rainfall is around 1.8 in.

Temperature in Detroit by month

If weather is an important factor for your trip to Detroit, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.8 F).

Reviews of airlines servicing Detroit

Southwest

8.1

Very good

4,274 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Southwest

8.1

Very good

4,274 reviews

Southwest

8.1

Very good

4,274 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

JetBlue

7.3

Good

2,923 reviews

Southwest

8.1

Very good

4,274 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Frontier

6.0

Okay

3,271 reviews

Southwest

8.1

Very good

4,274 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

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, April is the cheapest month in which you can book a flight from Islip, New York to Detroit (average of $257). Flying from Islip, New York to Detroit in March is currently the most expensive (average of $305). 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

Roseville

Port Huron

Browse thousands of different options on Cheapflights for your next trip

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$138+ 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 4/16. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Islip to Detroit with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Islip to Detroit

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Islip to Detroit

Cheapest flights from Islip to DetroitExplore 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 March 28, 2025.

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 March 28, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Islip to Detroit that are best for you.

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 March.

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.

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?

Rainfall in Detroit by month

Plan your trip to Detroit by taking into account the average rainfall totals by month.

Temperature in Detroit by month

Plan your trip to Detroit by taking into account the average temperature totals by month.

Reviews of airlines servicing Detroit

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.

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

How can I find direct flights from Islip to Detroit?

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

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

Traveling to a place near Islip?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Islip to Detroit

See prices for flight routes from nearby airports that may be better suited for you.

100% Free

Book with Flexibility

Travel Smart

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 March 28, 2025.