Cheap flights from Seattle to Islip (SEA - ISP) from $756
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
How far in advance should I book a flight from Seattle to Islip, New York?
When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 46 days in advance, which can save you up to 40% on flights from Seattle to Islip, New York compared to booking the week you need them. Waiting 46 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 $352. For sooner than that we have options available in the next 3 days from $538.
What is the cheapest month to fly from Seattle to Islip, New York?
January is one of the best times of the year to fly to Islip, New York from Seattle. Prices for January average $350 per person but you can even find prices for as low as $143. The most expensive prices can be found in the month of July. Opting for a January flight can save you 25% on your journey compared to booking in July
What is the cheapest time of day to fly from SEA to ISP?
When flying from Seattle to Islip, New York, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Cheap Seattle to Islip flights in June & July 2024
Find cheap flight options from Seattle to Islip specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,807,690 searches. Prices were last updated on June 2, 2024.
Seattle to Islip 2024 flight deals
Discover exclusive flight deals for travel between Seattle and Islip in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,807,690 searches. Data last updated June 2, 2024.
Seattle to Islip flights leaving soon
Find last-minute flight options from Seattle to Islip for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,807,690 searches. Data last updated June 2, 2024.
Find flights from Seattle to Islip within your budget
Customize your flight search to find flights from Seattle to Islip that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,807,690 searches. Data last updated June 2, 2024.
Fly from
Fly to
Budget
$756 - $830
Route
Depart
Return
Price
Seattle/Tacoma IntlIslip Long Island
SEA - ISP
SEAISP
Seattle/Tacoma Intl
Sun 6/16
2 stops14h 08m
Islip Long Island
Sun 6/30
3 stops22h 27m
Seattle/Tacoma IntlIslip Long Island
SEA - ISP
SEAISP
Seattle/Tacoma Intl
Sun 6/16
2 stops14h 08m
Islip Long Island
Sun 6/30
2 stops21h 03m
Seattle/Tacoma IntlIslip Long Island
SEA - ISP
SEAISP
Seattle/Tacoma Intl
Sun 6/16
3 stops28h 39m
Islip Long Island
Sun 6/30
3 stops22h 27m
No data available for this route at this time. Please check back soon.
Best time to book a flight from Seattle to Islip
Have a flexible travel schedule? Discover the best time to fly to Islip from Seattle with our price prediction graph.
Related info for your journey
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Alternative routes for Seattle to IslipSee prices for flight routes from nearby airports that may be better suited for you.
See prices for flight routes from nearby airports that may be better suited for you.
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Why should you use Cheapflights to find cheap flight tickets from Seattle to Islip?
Cheapflights simply makes it quick and affordable to book flights from Seattle to Islip by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Can Cheapflights find flights from Seattle to Islip with no change fees?
Certainly. Search results for flights to Islip from Seattle shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Seattle to Islip become cheaper?
Of course! You can now track prices for flights from Seattle to Islip and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.