When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Islip Long Island Airport?

Prices for flights from Seattle/Tacoma Intl Airport to Islip Long Island Airport were last updated today.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Islip Long Island Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Islip Long Island Airport.

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

The necessary travel and health documents for your Islip Long Island Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$398 Cheap Flights from Seattle to Islip in 2026

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One-way

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Cheap round-trip flights

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8:45 am - 9:55 pm

SEA

ISP

10h 10m2 stops

12:40 pm - 10:35 pm

ISP

SEA

12h 55m2 stops

$714Southwest

Wed, Jan 21 - Wed, Jan 28

7:55 am - 6:40 pm

SEA

ISP

31h 45m2 stops

12:30 pm - 10:17 pm

ISP

SEA

12h 47m1 stop

$772Multiple Airlines

Thu, Jan 22 - Sat, Jan 31

7:55 am - 7:45 pm

SEA

ISP

8h 50m1 stop

7:43 pm - 7:17 pm

ISP

SEA

26h 34m2 stops

$820Multiple Airlines

Sat, Jan 24 - Mon, Jan 26

7:55 am - 7:45 pm

SEA

ISP

8h 50m1 stop

7:43 pm - 7:17 pm

ISP

SEA

26h 34m2 stops

$826Multiple Airlines

Fri, Jan 23 - Mon, Jan 26

7:55 am - 7:45 pm

SEA

ISP

8h 50m1 stop

12:45 pm - 7:17 pm

ISP

SEA

33h 32m2 stops

$833Multiple Airlines

Sat, Jan 24 - Tue, Jan 27

7:55 am - 7:45 pm

SEA

ISP

8h 50m1 stop

7:35 pm - 7:17 pm

ISP

SEA

50h 42m2 stops

$836Multiple Airlines

Sat, Jan 24 - Wed, Jan 28

7:55 am - 7:45 pm

SEA

ISP

8h 50m1 stop

12:45 pm - 7:17 pm

ISP

SEA

33h 32m2 stops

$838Multiple Airlines

Fri, Jan 23 - Tue, Jan 27

7:55 am - 7:45 pm

SEA

ISP

8h 50m1 stop

7:35 pm - 7:17 pm

ISP

SEA

50h 42m2 stops

$842Multiple Airlines

Fri, Jan 23 - Wed, Jan 28

7:55 am - 6:40 pm

SEA

ISP

31h 45m2 stops

12:30 pm - 10:17 pm

ISP

SEA

12h 47m1 stop

$865Multiple Airlines

Thu, Jan 22 - Tue, Jan 27

7:55 am - 6:40 pm

SEA

ISP

31h 45m2 stops

12:30 pm - 10:17 pm

ISP

SEA

12h 47m1 stop

$900Multiple Airlines

Thu, Jan 22 - Thu, Jan 29

Southwest flights from Seattle to Islip, New York

Our best Southwest deals on Seattle to Islip, New York flight tickets

Southwest

Jan 21

SEA8:45 amSeattle/Tacoma Intl

10h 10m

2 stops

ISP9:55 pmIslip Long Island

Jan 28

ISP12:40 pmIslip Long Island

12h 55m

2 stops

SEA10:35 pmSeattle/Tacoma Intl

$714

Southwest

Jan 16

SEA8:35 amSeattle/Tacoma Intl

10h 45m

2 stops

ISP10:20 pmIslip Long Island

Jan 30

ISP12:40 pmIslip Long Island

12h 55m

2 stops

SEA10:35 pmSeattle/Tacoma Intl

$873

Southwest

Jan 13

SEA6:25 amSeattle/Tacoma Intl

12h 30m

2 stops

ISP9:55 pmIslip Long Island

Jan 25

ISP5:55 amIslip Long Island

15h 35m

2 stops

SEA6:30 pmSeattle/Tacoma Intl

$878

Fly from

Fly to

Route

Depart

Return

Price

SeattleIslip

SEA - ISP

SEAISP

Seattle/Tacoma Intl

Wed 1/21

8:45 am-9:55 pm

2 stops10h 10m

Islip Long Island

Wed 1/28

12:40 pm-10:35 pm

2 stops12h 55m

$714

SeattleIslip

SEA - ISP

SEAISP

Seattle/Tacoma Intl

Thu 1/22

7:55 am-6:40 pm

2 stops31h 45m

Islip Long Island

Sat 1/31

12:30 pm-10:17 pm

1 stop12h 47m

$772

SeattleIslip

SEA - ISP

SEAISP

Seattle/Tacoma Intl

Sat 1/24

7:55 am-7:45 pm

1 stop8h 50m

Islip Long Island

Mon 1/26

7:43 pm-7:17 pm

2 stops26h 34m

$820

SeattleIslip

SEA - ISP

SEAISP

Seattle/Tacoma Intl

Fri 1/23

7:55 am-7:45 pm

1 stop8h 50m

Islip Long Island

Mon 1/26

7:43 pm-7:17 pm

2 stops26h 34m

$826

SeattleIslip

SEA - ISP

SEAISP

Seattle/Tacoma Intl

Sat 1/24

7:55 am-7:45 pm

1 stop8h 50m

Islip Long Island

Tue 1/27

12:45 pm-7:17 pm

2 stops33h 32m

$833

SeattleIslip

SEA - ISP

SEAISP

Seattle/Tacoma Intl

Sat 1/24

7:55 am-7:45 pm

1 stop8h 50m

Islip Long Island

Wed 1/28

7:35 pm-7:17 pm

2 stops50h 42m

$836

SeattleIslip

SEA - ISP

SEAISP

Seattle/Tacoma Intl

Fri 1/23

7:55 am-7:45 pm

1 stop8h 50m

Islip Long Island

Tue 1/27

12:45 pm-7:17 pm

2 stops33h 32m

$838

SeattleIslip

SEA - ISP

SEAISP

Seattle/Tacoma Intl

Fri 1/23

7:55 am-7:45 pm

1 stop8h 50m

Islip Long Island

Wed 1/28

7:35 pm-7:17 pm

2 stops50h 42m

$842

SeattleIslip

SEA - ISP

SEAISP

Seattle/Tacoma Intl

Thu 1/22

7:55 am-6:40 pm

2 stops31h 45m

Islip Long Island

Tue 1/27

12:30 pm-10:17 pm

1 stop12h 47m

$865

SeattleIslip

SEA - ISP

SEAISP

Seattle/Tacoma Intl

Thu 1/22

7:55 am-6:40 pm

2 stops31h 45m

Islip Long Island

Thu 1/29

12:30 pm-10:17 pm

1 stop12h 47m

$900

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Seattle to Islip, New York

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

What airlines fly to Islip, New York?

Alaska Airlines, Delta and United Airlines are the top three most popular airlines that fly to Islip, New York from Seattle according to our data. Alaska Airlines is the first choice among our users, with 56% of people opting to fly with this airline when traveling to Islip, New York. Keep in mind that there are 10 different airlines that fly to Islip, New York on a routine basis, so you have a few additional options to choose from.

When to book flights from Seattle to Islip, New York

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

Estimated round-trip price

Cheap Seattle to Islip, New York (SEA to ISP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Islip, New York

Fastest flight time	8h 45m
Direct flights	None

The fastest flight from Seattle to Islip, New York takes 8h 45m

There are no direct flights from Seattle to Islip, New York. There are no popular flight routes from Seattle to Islip, New York.

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How far is Seattle/Tacoma Intl to Islip Long Island by plane?
Islip Long Island is 2436.8 mi away from Seattle/Tacoma Intl. Typically, this will take 8h 45m by plane in normal conditions.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Islip Long Island Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Islip Long Island Airport were last updated today.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Islip Long Island Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Islip Long Island Airport.
What documentation or ID do you need to fly to Islip Long Island Airport?
The necessary travel and health documents for your Islip Long Island Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Montauk

Riverhead

Sag Harbor

Southampton

Amagansett

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Islip. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Seattle to Islip flights to just show those with flexible booking policies.

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

Once you have performed a search for Seattle to Islip flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Seattle to Islip now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Islip and let you know when they change.