Cheap flights from Islip to Key West (ISP - EYW) from $367

Users have found that leaving on a Saturday can be a cost-effective option. It’s possible to save up to 3,418% on your flight compared to booking on days when demand is much higher.

To save on the cost of your flight from Islip to Key West, book at least 39 days before your planned departure. Booking around this time can save you about 21% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $491 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $590.

Flights from Islip to Key West lean towards being more expensive in February. Prices are generally better when you fly from Islip to Key West in September, with the cheapest ticket starting at $255.

A simple way to save on the total cost of your ticket is to fly from Islip to Key West in the afternoon. If you’re flexible enough to do this you can expect to save up to 17% on your trip compared to booking a flight in the morning.

Due to the rapidly changing circumstances due to COVID-19, airlines like American Airlines flying from Islip Long Island to Key West have implemented new flexible change policies.

Yes, there are multiple flights from Islip to Key West for under $400. The cheapest flight booked recently is on Multiple Airlines for just $382, but on average you can expect to pay $504.

ISP stands for Islip Long Island Airport, while EYW stands for Key West Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.