What is the cheapest airline that flies from Detroit to Islip Long Island?

Frontier and Southwest are the most popular carriers operating from Detroit to Islip Long Island

What airlines fly to Islip?

Spirit Airlines, Delta and American Airlines are the top three most popular airlines that fly to Islip from Detroit according to our data. Spirit Airlines is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Islip. Keep in mind that there are 7 different airlines that fly to Islip on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Detroit to Islip Long Island Airport?

Prices for flights from Detroit to Islip Long Island Airport are updated daily.

How old do you have to be to fly from Detroit to Islip Long Island Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Detroit to Islip Long Island Airport.

What documentation or ID do you need to fly to Islip Long Island Airport?

The travel and health documents you'll need for your trip to Islip Long Island Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Islip Long Island Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$92 Cheap Flights from Detroit to Islip in 2025/26

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Find the cheapest flights from Detroit to New York

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Cheap round-trip flights

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9:30 am - 8:14 pmDTW-ISP

10h 44m1 stop

8:09 pm - 1:55 pmISP-DTW

17h 46m1 stop

$264Multiple Airlines

Find Deal

Mon, Dec 8 - Tue, Dec 9

2:53 pm - 5:42 pmDTW-ISP

26h 49m1 stop

9:27 pm - 11:29 pmISP-DTW

26h 02m1 stop

$275Multiple Airlines

Find Deal

Wed, Oct 29 - Sun, Nov 2

2:53 pm - 5:42 pmDTW-ISP

26h 49m1 stop

9:27 pm - 5:16 pmISP-DTW

19h 49m2 stops

$276Multiple Airlines

Find Deal

Wed, Oct 29 - Sun, Nov 2

8:30 pm - 9:11 amDTW-ISP

12h 41m1 stop

8:09 pm - 1:55 pmISP-DTW

17h 46m1 stop

$284Multiple Airlines

Find Deal

Sun, Dec 7 - Tue, Dec 9

5:40 am - 12:15 pmDTW-ISP

6h 35m1 stop

5:40 am - 2:45 pmISP-DTW

9h 05m2 stops

$302Southwest

Find Deal

Mon, Dec 8 - Tue, Dec 9

1:15 pm - 9:40 pmDTW-ISP

8h 25m2 stops

12:55 pm - 10:40 pmISP-DTW

9h 45m2 stops

$316Southwest

Find Deal

Mon, Dec 8 - Tue, Dec 9

5:25 pm - 11:50 pmDTW-ISP

6h 25m2 stops

12:55 pm - 10:40 pmISP-DTW

9h 45m2 stops

$352Southwest

Find Deal

Sun, Dec 7 - Tue, Dec 9

1:48 pm - 12:11 amDTW-ISP

10h 23m1 stop

5:45 am - 12:53 pmISP-DTW

7h 08m1 stop

$660Frontier

Find Deal

Fri, Dec 19 - Mon, Dec 22

11:26 am - 7:30 pmDTW-ISP

8h 04m1 stop

9:09 pm - 8:35 amISP-DTW

11h 26m1 stop

$769Frontier

Find Deal

Sun, Nov 30 - Sun, Dec 7

11:26 am - 7:30 pmDTW-ISP

8h 04m1 stop

6:00 am - 8:03 pmISP-DTW

14h 03m1 stop

$1,264Frontier

Find Deal

Sun, Nov 23 - Sat, Nov 29

Frontier flights from Detroit to Islip

Our best Frontier deals on Detroit to Islip flight tickets

Frontier

Dec 19

DTW1:48 pmDetroit Metropolitan Wayne County

10h 23m

1 stop

ISP12:11 amIslip Long Island

Dec 22

ISP5:45 amIslip Long Island

7h 08m

1 stop

DTW12:53 pmDetroit Metropolitan Wayne County

$660

Find similar

Frontier

Nov 30

DTW11:26 amDetroit Metropolitan Wayne County

8h 04m

1 stop

ISP7:30 pmIslip Long Island

Dec 7

ISP9:09 pmIslip Long Island

11h 26m

1 stop

DTW8:35 amDetroit Metropolitan Wayne County

$769

Find similar

Frontier

Nov 23

DTW11:26 amDetroit Metropolitan Wayne County

8h 04m

1 stop

ISP7:30 pmIslip Long Island

Nov 29

ISP6:00 amIslip Long Island

14h 03m

1 stop

DTW8:03 pmDetroit Metropolitan Wayne County

$1,264

Find similar

Southwest flights from Detroit to Islip

Our best Southwest deals on Detroit to Islip flight tickets

Southwest

Dec 8

DTW5:40 amDetroit Metropolitan Wayne County

6h 35m

1 stop

ISP12:15 pmIslip Long Island

Dec 9

ISP5:40 amIslip Long Island

9h 05m

2 stops

DTW2:45 pmDetroit Metropolitan Wayne County

$302

Find similar

Southwest

Dec 8

DTW1:15 pmDetroit Metropolitan Wayne County

8h 25m

2 stops

ISP9:40 pmIslip Long Island

Dec 9

ISP12:55 pmIslip Long Island

9h 45m

2 stops

DTW10:40 pmDetroit Metropolitan Wayne County

$316

Find similar

Southwest

Dec 7

DTW5:25 pmDetroit Metropolitan Wayne County

6h 25m

2 stops

ISP11:50 pmIslip Long Island

Dec 9

ISP12:55 pmIslip Long Island

9h 45m

2 stops

DTW10:40 pmDetroit Metropolitan Wayne County

$352

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Mon 12/8

9:30 am-8:14 pm

1 stop10h 44m

Islip Long Island

Tue 12/9

8:09 pm-1:55 pm

1 stop17h 46m

$264

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Wed 10/29

2:53 pm-5:42 pm

1 stop26h 49m

Islip Long Island

Sun 11/2

9:27 pm-11:29 pm

1 stop26h 02m

$275

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Wed 10/29

2:53 pm-5:42 pm

1 stop26h 49m

Islip Long Island

Sun 11/2

9:27 pm-5:16 pm

2 stops19h 49m

$276

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Sun 12/7

8:30 pm-9:11 am

1 stop12h 41m

Islip Long Island

Tue 12/9

8:09 pm-1:55 pm

1 stop17h 46m

$284

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Mon 12/8

5:40 am-12:15 pm

1 stop6h 35m

Islip Long Island

Tue 12/9

5:40 am-2:45 pm

2 stops9h 05m

$302

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Mon 12/8

1:15 pm-9:40 pm

2 stops8h 25m

Islip Long Island

Tue 12/9

12:55 pm-10:40 pm

2 stops9h 45m

$316

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Sun 12/7

5:25 pm-11:50 pm

2 stops6h 25m

Islip Long Island

Tue 12/9

12:55 pm-10:40 pm

2 stops9h 45m

$352

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Fri 12/19

1:48 pm-12:11 am

1 stop10h 23m

Islip Long Island

Mon 12/22

5:45 am-12:53 pm

1 stop7h 08m

$660

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Sun 11/30

11:26 am-7:30 pm

1 stop8h 04m

Islip Long Island

Sun 12/7

9:09 pm-8:35 am

1 stop11h 26m

$769

DetroitIslip

DTW - ISP

DTWISP

Detroit Metropolitan Wayne County

Sun 11/23

11:26 am-7:30 pm

1 stop8h 04m

Islip Long Island

Sat 11/29

6:00 am-8:03 pm

1 stop14h 03m

$1,264

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Detroit to Islip

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Islip?

On average, the least expensive day to fly to Islip from Detroit is on a Friday. momondo users have found tickets for Friday departures for as low as $367. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Detroit to Islip on a Thursday will generally be more expensive and average around $416. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Islip?

Flying to Islip from Detroit in the morning is the least expensive time of day to depart. momondo users have found prices as low as $356 when looking at flights departing in the morning. Flights in the evening are often more expensive with an average ticket price of $361.

When to book flights from Detroit to Islip

Are you open to changing your travel dates? Check out the ideal times to fly from Detroit to Islip according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Detroit to Islip (DTT to ISP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Detroit to Islip

Direct flights	None

There are no direct flights from Detroit to Islip. There are no popular flight routes from Detroit to Islip.

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How far is Detroit to Islip Long Island by plane?
The straight-line distance from Detroit to Islip Long Island is 520.3 mi. By plane, this route typically takes 5h 50m.
When did momondo last update prices for flights from Detroit to Islip Long Island Airport?
Prices for flights from Detroit to Islip Long Island Airport are updated daily.
How old do you have to be to fly from Detroit to Islip Long Island Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Detroit to Islip Long Island Airport.
What documentation or ID do you need to fly to Islip Long Island Airport?
The travel and health documents you'll need for your trip to Islip Long Island Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Islip Long Island Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Montauk

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Sag Harbor

Southampton

Amagansett

Why use momondo?

Why should I use momondo to find a flight deal from Detroit to Islip?

Finding the right flight to Islip from Detroit is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Islip quick and easy, saving you time and money.

Can I find flights from Detroit to Islip with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Islip from Detroit with this policy.

How can momondo help me find flights from Detroit to Islip?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Islip from Detroit.

I’m not ready to book a flight from Detroit to Islip right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Detroit to Islip flights. All you need is a valid email address and we will do the rest; it is that quick and easy.