Cheap flights from Islip to Seattle (ISP - SEA) from $501

Yes, there are multiple flights from Islip, New York to Seattle for under $600. The cheapest flight booked recently is on Multiple Airlines for just $501, but on average you can expect to pay $519.

These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Islip Long Island Airport to Seattle/Tacoma Intl Airport flight would often be abbreviated as a ISP to SEA flight.

The amount of baggage you can bring on your Islip to Seattle flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

Yes, Cheapflights allows you to browse and filter Islip to Seattle flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

Yes. In addition to deals on Islip to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to Seattle.

Yes. Cheapflights offers flight deals from Islip to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Many airlines flying from Islip to Seattle offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

Yes, you can often find last-minute deals on Islip to Seattle flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

The Islip, New York to Seattle flight deals you see on this page were last updated on 6/6.

Currently, January is the cheapest month in which you can book a flight from Islip, New York to Seattle (average of $247). Flying from Islip, New York to Seattle in July is currently the most expensive (average of $406). 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.