Cheap Flights from Santander (SDR) to Islip (ISP)

Get a cheap one-way flight or cheap return flight from Santander Airport (SDR) to MacArthur Airport (ISP) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.

The cheapest month to fly from SDR to ISP is , when demand is low. Off-peak months are generally when better flight deals are available between these airports.

Use the filters on Expedia to compare airlines and find the cheapest carrier that'll take you from SDR to ISP. Then, sort your results by "Price (lowest to highest)" to score the best deal available.

Nonstop flights from Santander Airport (SDR) to MacArthur Airport (ISP) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and pick either "1 Stop" or "2+ Stops."

Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary based on a number of factors, such as the airline and season.

*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.

Book a flight from Santander Airport (SDR) to MacArthur Airport (ISP) that leaves before 3 PM to reduce the risk of cancellations. Departures later than this have a 22% higher chance of being canceled, on average.*

*Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.

Booking your ticket from SDR to ISP just before your journey is generally more expensive. But if you're flexible with your travel times and dates, you could grab a cheap last-minute fare.

Compared with arranging hotels and flights separately, booking a SDR to ISP flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one convenient place takes the hassle out of planning your trip. Simply pick your flights and select from our wide range of stays, then tailor your trip with extras like car rentals and activities.

If you booked your SDR to ISP flight in the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more information.