Cheap Flights from Islip to Boston from € 49

Frequently Asked Questions

• Which airlines offer the cheapest flights from Islip (ISP) to Boston (BOS)?

  Based on Trip.com data, Frontier Airlines offers one-way fares as low as € 49 on Cheapest nonstop routes (e.g. ISP to BOS on Sun, Jan 11), while Jetblue Airways offers Cheapest nonstop round-trips from € 389 departing on Wed, Jan 7 and returning on Thu, Jan 8.

• How long is a flight from Islip (ISP) to Boston (BOS)?

  It takes about 1 hour 27 minutes to fly from Islip (ISP) to Boston (BOS).

• When is the best time to book flights from Islip to Boston?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Islip to Boston is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How can I find the best deals on flights from Islip to Boston?

  To find best deals on flights from Islip to Boston, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sun, Jan 11, with one-way flights priced at just € 49.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Cape Air.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Boston travel is around August.
  · Get exclusive promo codes for Trip.com app users.

• When is the best time to book a flight from Islip to Boston to get the best price?

  The cheapest months to fly from Islip to Boston is November, when demand for travel is lower.

• Which upcoming date is the cheapest for flights from Islip to Boston?

  After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Islip to Boston on December 19, 2025 with Cape Air, with prices starting at € 408.

• What is the time difference between Islip and Boston?

  The time difference between Boston and Islip is 0h.

• How can I change or cancel my flight ticket from Islip to Boston?

  Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.