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.

$381 Cheap Flights from Seattle to Islip in 2025/26

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Find the cheapest flights from Seattle to New York

Round-trip

One-way

Last minute

Cheap round-trip flights

6:55 am - 10:05 pmSEA-ISP

12h 10m2 stops

11:55 am - 9:45 pmISP-SEA

12h 50m2 stops

$423Southwest

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Tue, Oct 21 - Sat, Oct 25

8:20 am - 11:45 pmSEA-ISP

12h 25m2 stops

11:25 am - 9:30 pmISP-SEA

13h 05m2 stops

$445Southwest

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Mon, Oct 27 - Fri, Oct 31

11:15 pm - 11:04 amSEA-ISP

8h 49m1 stop

8:45 pm - 7:05 pmISP-SEA

25h 20m2 stops

$862Multiple Airlines

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Tue, Oct 21 - Sat, Oct 25

7:28 pm - 4:15 pmSEA-ISP

17h 47m2 stops

7:30 am - 10:45 pmISP-SEA

18h 15m3 stops

$921Multiple Airlines

Find Deal

Mon, Oct 27 - Fri, Oct 31

11:10 pm - 4:15 pmSEA-ISP

14h 05m1 stop

9:59 am - 11:32 pmISP-SEA

16h 33m2 stops

$944Multiple Airlines

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Mon, Oct 27 - Fri, Oct 31

11:15 pm - 4:15 pmSEA-ISP

14h 00m1 stop

12:40 pm - 10:02 pmISP-SEA

12h 22m1 stop

$974Multiple Airlines

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Tue, Oct 21 - Sat, Oct 25

11:15 pm - 10:58 amSEA-ISP

8h 43m1 stop

2:19 pm - 11:04 pmISP-SEA

11h 45m2 stops

$1,264Multiple Airlines

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Sun, Oct 5 - Tue, Oct 7

8:00 am - 8:01 pmSEA-ISP

9h 01m1 stop

2:19 pm - 11:04 pmISP-SEA

11h 45m2 stops

$1,305Multiple Airlines

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Sun, Sep 28 - Mon, Oct 6

11:34 pm - 10:58 amSEA-ISP

8h 24m1 stop

2:25 pm - 7:52 pmISP-SEA

32h 27m2 stops

$1,309Multiple Airlines

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Thu, Oct 2 - Mon, Oct 6

3:59 pm - 10:58 amSEA-ISP

15h 59m1 stop

11:53 am - 7:50 pmISP-SEA

10h 57m1 stop

$1,398Multiple Airlines

Find Deal

Thu, Oct 2 - Mon, Oct 6

Southwest flights from Seattle to Islip

Our best Southwest deals on Seattle to Islip flight tickets

Southwest

Oct 21

SEA6:55 amSeattle/Tacoma Intl

12h 10m

2 stops

ISP10:05 pmIslip Long Island

Oct 25

ISP11:55 amIslip Long Island

12h 50m

2 stops

SEA9:45 pmSeattle/Tacoma Intl

$423

Find similar

Southwest

Oct 27

SEA8:20 amSeattle/Tacoma Intl

12h 25m

2 stops

ISP11:45 pmIslip Long Island

Oct 31

ISP11:25 amIslip Long Island

13h 05m

2 stops

SEA9:30 pmSeattle/Tacoma Intl

$445

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleIslip

SEA - ISP

SEAISP

Seattle/Tacoma Intl

Tue 10/21

6:55 am-10:05 pm

2 stops12h 10m

Islip Long Island

Sat 10/25

11:55 am-9:45 pm

2 stops12h 50m

$423

SeattleIslip

SEA - ISP

SEAISP

Seattle/Tacoma Intl

Mon 10/27

8:20 am-11:45 pm

2 stops12h 25m

Islip Long Island

Fri 10/31

11:25 am-9:30 pm

2 stops13h 05m

$445

SeattleIslip

SEA - ISP

SEAISP

Seattle/Tacoma Intl

Tue 10/21

11:15 pm-11:04 am

1 stop8h 49m

Islip Long Island

Sat 10/25

8:45 pm-7:05 pm

2 stops25h 20m

$862

SeattleIslip

SEA - ISP

SEAISP

Seattle/Tacoma Intl

Mon 10/27

7:28 pm-4:15 pm

2 stops17h 47m

Islip Long Island

Fri 10/31

7:30 am-10:45 pm

3 stops18h 15m

$921

SeattleIslip

SEA - ISP

SEAISP

Seattle/Tacoma Intl

Mon 10/27

11:10 pm-4:15 pm

1 stop14h 05m

Islip Long Island

Fri 10/31

9:59 am-11:32 pm

2 stops16h 33m

$944

SeattleIslip

SEA - ISP

SEAISP

Seattle/Tacoma Intl

Tue 10/21

11:15 pm-4:15 pm

1 stop14h 00m

Islip Long Island

Sat 10/25

12:40 pm-10:02 pm

1 stop12h 22m

$974

SeattleIslip

SEA - ISP

SEAISP

Seattle/Tacoma Intl

Sun 10/5

11:15 pm-10:58 am

1 stop8h 43m

Islip Long Island

Tue 10/7

2:19 pm-11:04 pm

2 stops11h 45m

$1,264

SeattleIslip

SEA - ISP

SEAISP

Seattle/Tacoma Intl

Sun 9/28

8:00 am-8:01 pm

1 stop9h 01m

Islip Long Island

Mon 10/6

2:19 pm-11:04 pm

2 stops11h 45m

$1,305

SeattleIslip

SEA - ISP

SEAISP

Seattle/Tacoma Intl

Thu 10/2

11:34 pm-10:58 am

1 stop8h 24m

Islip Long Island

Mon 10/6

2:25 pm-7:52 pm

2 stops32h 27m

$1,309

SeattleIslip

SEA - ISP

SEAISP

Seattle/Tacoma Intl

Thu 10/2

3:59 pm-10:58 am

1 stop15h 59m

Islip Long Island

Mon 10/6

11:53 am-7:50 pm

1 stop10h 57m

$1,398

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 Seattle 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

What airlines fly to Islip?

Alaska Airlines, Delta and United Airlines are the top three most popular airlines that fly to Islip from Seattle according to our data. Alaska Airlines is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Islip. Keep in mind that there are 10 different airlines that fly to Islip on a routine basis, so you have a few additional options to choose from.

When to book flights from Seattle to Islip

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

Estimated round-trip price

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

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

Direct flights	None

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

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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 24m 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.

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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.