What is the cheapest day to fly from Detroit Metropolitan Wayne County Airport to Islip, New York?

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

In terms of precipitation, rainfall in Islip, New York ranges from 3.3 - 4.4 inches per month. March is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Islip, New York when rainfall is around 3.3 in.

If weather is an important factor for your trip to Islip, New York, 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 30.2 F).

What is the cheapest month to fly from Detroit Metropolitan Wayne County Airport to Islip, New York?

Flights from Detroit Metropolitan Wayne County Airport to Islip, New York lean towards being more expensive in November. Prices are generally better when you fly from Detroit Metropolitan Wayne County Airport to Islip, New York in February, with the cheapest ticket starting at $90.

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.

$128+ Flights from Detroit Metropolitan Wayne County Airport to Islip, NY

Q: How far in advance should I book a flight from Detroit Metropolitan Wayne County Airport to Islip, New York?

Find a great deal and save up to 156% by booking at least 60 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Detroit Metropolitan Wayne County Airport to Islip, New York within the next two weeks, with the cheapest ticket starting at $155.

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Cheap flight deals from Detroit to Islip

Round-trip from	$216 (Frontier)
One-way from	$128 (Frontier)
Popular in	November
Cheapest in	February
Average price	$166

From Detroit Metropolitan Wayne County to Islip Long Island

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One-way flight from Detroit Metropolitan Wayne County to Islip Long Island

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Highest demand for flights based on searches. 12% potential increase in price ($25 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($4 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find 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 July 3, 2025.

Wed 7/161:17 pmDTW - ISP

1 stop6h 35mFrontier

Wed 7/238:37 pmISP - DTW

1 stop12h 35mFrontier

Deal found 7/2

$216

Wed 10/155:50 amDTW - ISP

1 stop6h 35mSouthwest

Fri 10/175:35 pmISP - DTW

1 stop6h 30mSouthwest

Deal found 7/3

$272

Wed 7/309:14 pmDTW - ISP

3 stops21h 45mMultiple Airlines

Mon 8/410:44 amISP - DTW

2 stops13h 10mMultiple Airlines

Deal found 7/2

$516

Best flights from Detroit to Islip
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 July 3, 2025.

Wed 7/161:17 pmDTW - ISP

1 stop6h 35mFrontier

Wed 7/238:37 pmISP - DTW

1 stop12h 35mFrontier

Deal found 7/2

$216

Sat 8/165:50 amDTW - ISP

1 stop6h 15mSouthwest

Sun 8/176:00 amISP - DTW

1 stop6h 30mSouthwest

Deal found 7/1

$327

Wed 7/309:14 pmDTW - ISP

3 stops21h 45mMultiple Airlines

Mon 8/410:44 amISP - DTW

2 stops13h 10mMultiple Airlines

Deal found 7/2

$516

Last-minute flights from Detroit to Islip
Discover last-minute flight deals from Detroit to Islip. Data last updated July 3, 2025 and is based on user searches.

Thu 7/1012:50 pmDTW - ISP

2 stops11h 15mSouthwest

Sun 7/136:00 amISP - DTW

1 stop6h 15mSouthwest

Deal found 7/2

$528

Thu 7/108:38 amDTW - ISP

3 stops25h 26mMultiple Airlines

Sun 7/137:39 pmISP - DTW

2 stops17h 14mMultiple Airlines

Deal found 7/1

$692

Fri 7/111:06 pmDTW - ISP

1 stop6h 36mFrontier

Sat 7/128:37 pmISP - DTW

1 stop12h 35mFrontier

Deal found 7/2

$274

Wed 7/161:17 pmDTW - ISP

1 stop6h 35mFrontier

Wed 7/238:37 pmISP - DTW

1 stop12h 35mFrontier

Deal found 7/2

$216

Wed 7/309:14 pmDTW - ISP

3 stops21h 45mMultiple Airlines

Mon 8/410:44 amISP - DTW

2 stops13h 10mMultiple Airlines

Deal found 7/2

$516

Sat 8/165:50 amDTW - ISP

1 stop6h 15mSouthwest

Sun 8/176:00 amISP - DTW

1 stop6h 30mSouthwest

Deal found 7/1

$327

One-way flights from Detroit to Islip
Search for one-way flight options from Detroit to Islip. Find affordable one-way fares based on user searches. Data last updated July 3, 2025.

Wed 7/161:17 pmDTW - ISP

1 stop6h 35mFrontier

Deal found 7/2

$128

Sun 8/174:40 pmDTW - ISP

3 stops22h 39mMultiple Airlines

Deal found 6/30

$234

Fri 7/1112:50 pmDTW - ISP

2 stops11h 15mSouthwest

Deal found 7/2

$267

Cheapflights Fare Finder

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

Price

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Wed 7/16

1:17 pm-7:52 pm

1 stop6h 35m

Islip Long Island

Wed 7/23

8:37 pm-9:12 am

1 stop12h 35m

$216

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Wed 10/15

5:50 am-12:25 pm

1 stop6h 35m

Islip Long Island

Fri 10/17

5:35 pm-12:05 am

1 stop6h 30m

$272

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Wed 7/30

9:14 pm-6:59 pm

3 stops21h 45m

Islip Long Island

Mon 8/4

10:44 am-11:54 pm

2 stops13h 10m

$516

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Wed 7/16

1:17 pm-7:52 pm

1 stop6h 35m

$128

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Sun 8/17

4:40 pm-3:19 pm

3 stops22h 39m

$234

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Fri 7/11

12:50 pm-12:05 am

2 stops11h 15m

$267

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

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, January is the cheapest month in which you can book a flight from Detroit Metropolitan Wayne County Airport to Islip, New York (average of $108). Flying from Detroit Metropolitan Wayne County Airport to Islip, New York in November is currently the most expensive (average of $213). 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.

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

One of the essential ways to save on airfare from Detroit Metropolitan Wayne County Airport to Islip, New York is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 27% on airfare.

Reviews of airlines servicing Islip

Peruse reviews from past customers who have flown with Southwest and Frontier from Detroit Metropolitan Wayne County Airport to Islip to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,266 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Southwest

8.0

Very good

4,266 reviews

Southwest

8.0

Very good

4,266 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Frontier

5.9

Fair

3,286 reviews

Southwest

8.0

Very good

4,266 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

What are the cheapest airlines flying from Detroit Metropolitan Wayne County Airport to Islip, New York round-trip?
Flying on Frontier is currently your cheapest option to Islip, New York, with prices starting at $216. Another option worth looking into is Southwest, starting at $327 round trip.
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, January is the cheapest month in which you can book a flight from Detroit Metropolitan Wayne County Airport to Islip, New York (average of $108). Flying from Detroit Metropolitan Wayne County Airport to Islip, New York in November is currently the most expensive (average of $213). 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.

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Other flights to Islip

Top airline flying from Detroit to Islip

Airline	Cheapest	Average	Flexibility	On-time
Southwest	Cheapest$286	Average$376	FlexibilityNo cancel fee	On-time63%

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$128+ 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 7/16. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Detroit to Islip with Cheapflights

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2. Select your favorite providers

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Cheap flight deals from Detroit to Islip

Round-trip from

One-way from

Popular in

Cheapest in

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Find flight deals from Detroit to Islip

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 July 3, 2025.

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 July 3, 2025.

Cheapflights Fare Finder

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

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.

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?

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

Find hourly flight availability from Detroit to Islip. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

Reviews of airlines servicing Islip

Get insights into the airlines that provide service to Islip. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Islip. Reviews last updated July 3, 2025.

Peruse reviews from past customers who have flown with Southwest and Frontier from Detroit Metropolitan Wayne County Airport to Islip to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

What are the cheapest airlines flying from Detroit Metropolitan Wayne County Airport to Islip, New York round-trip?

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

How can I find direct flights from Detroit to Islip?

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

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

Traveling to a place near Detroit Metropolitan Wayne County Airport?

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Alternative routes for Detroit to Islip

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

Top airline flying from Detroit to Islip

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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 July 3, 2025.