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Flights from Islip to Boston

Find the cheapest direct flight options from Islip to Boston over the next three months. Book one-way tickets from TWD 7,562 and round-trip tickets from TWD 14,796.

      • Cheapest nonstop
        ISP 09:59
        1h 25m
        Direct
        BOS 11:24
        Islip - Boston | Sun, Jan 11 | Cape Air
        BOS 09:30
        1h 35m
        Direct
        ISP 11:05
        Boston - Islip | Sun, Jan 18 | Cape Air
        TWD 14,796 TWD 16,863
        12% OFF
        12% OFF
        TWD 16,863 TWD 14,796
      • ISP 07:25
        1h 34m
        Direct
        BOS 08:59
        Islip - Boston | Thu, Jan 8 | Cape Air
        BOS 18:19
        1h 26m
        Direct
        ISP 19:45
        Boston - Islip | Thu, Jan 15 | Cape Air
        TWD 14,796 TWD 16,863
        12% OFF
        12% OFF
        TWD 16,863 TWD 14,796
      • ISP 07:25
        1h 34m
        Direct
        BOS 08:59
        Islip - Boston | Mon, Jan 12 | Cape Air
        BOS 09:30
        1h 35m
        Direct
        ISP 11:05
        Boston - Islip | Mon, Jan 19 | Cape Air
        TWD 14,796 TWD 16,863
        12% OFF
        12% OFF
        TWD 16,863 TWD 14,796
      • ISP 12:30
        1h 34m
        Direct
        BOS 14:04
        Islip - Boston | Fri, Dec 19 | Cape Air
        BOS 14:34
        1h 36m
        Direct
        ISP 16:10
        Boston - Islip | Tue, Dec 23 | Cape Air
        TWD 14,800
        12% OFF
        TWD 16,863 TWD 14,800
      • ISP 09:59
        1h 25m
        Direct
        BOS 11:24
        Islip - Boston | Fri, Jan 9 | Cape Air
        BOS 09:30
        1h 35m
        Direct
        ISP 11:05
        Boston - Islip | Fri, Jan 16 | Cape Air
        TWD 14,831
        12% OFF
        TWD 16,863 TWD 14,831
      • ISP 09:59
        1h 25m
        Direct
        BOS 11:24
        Islip - Boston | Wed, Jan 14 | Cape Air
        BOS 18:19
        1h 26m
        Direct
        ISP 19:45
        Boston - Islip | Wed, Jan 21 | Cape Air
        TWD 14,836
        12% OFF
        TWD 16,863 TWD 14,836
      • ISP 12:30
        1h 34m
        Direct
        BOS 14:04
        Islip - Boston | Sat, Dec 13 | Cape Air
        BOS 14:34
        1h 36m
        Direct
        ISP 16:10
        Boston - Islip | Sun, Dec 14 | Cape Air
        TWD 15,004
        11% OFF
        TWD 16,863 TWD 15,004
      • ISP 12:30
        1h 34m
        Direct
        BOS 14:04
        Islip - Boston | Sat, Dec 20 | Cape Air
        BOS 14:34
        1h 36m
        Direct
        ISP 16:10
        Boston - Islip | Wed, Dec 24 | Cape Air
        TWD 15,008
        11% OFF
        TWD 16,863 TWD 15,008
      • ISP 11:05
        27h 45m
        1 stop
        BOS 14:50
        Islip - Boston | Wed, Jan 7 | Jetblue Airways
        BOS 19:30
        22h 20m
        1 stop
        ISP 17:50
        Boston - Islip | Thu, Jan 8 | Jetblue Airways
        TWD 14,076
        17% OFF
        TWD 16,863 TWD 14,076
      • ISP 12:30
        1h 34m
        Direct
        BOS 14:04
        Islip - Boston | Wed, Jan 7 | Cape Air
        BOS 19:30
        22h 20m
        1 stop
        ISP 17:50
        Boston - Islip | Thu, Jan 8 | Jetblue Airways
        TWD 14,990
        11% OFF
        TWD 16,863 TWD 14,990
      • ISP 13:00
        17h 25m
        1 stop
        BOS Invalid Date
        Islip - Boston | Fri, Dec 12 | Normal Airline
        BOS 15:00
        6h
        Direct
        ISP 16:00
        Boston - Islip | Sun, Dec 14 | Normal Airline
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Displayed flight fares from Islip to Boston are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight details for Islip to Boston

The distance between Islip and Boston is 247.06km. It takes around 1 hour 27 minutes on average to fly from Islip to Boston. Based on Trip.com's data, travel demand peaks in August. The off-season for travel is November.

Cheapest one-way flight priceTWD 1,763
Cheapest return ticket priceTWD 14,076
Off-season travel monthNovember
Peak season for travelAugust
Flight distance247.06km
Average flight time1 hour 27 minutes

Find the best time to fly from Islip to Boston

The cheapest time for Islip to Boston flights: Jan 4 to Jan 11 — one way flight prices from TWD 1,762.

Cheapest flights
From price
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  • 714
  • 1421
  • 2128

  • Jan

    284
  • 411
  • 1118
  • 1825

  • Feb

    251
  • 18
  • 815
  • 1522

  • Mar

    221
Displayed fare trends are based on Trip.com's aggregated average of the lowest flight prices from Islip to Boston, calculated over the upcoming 10 weeks.

Flight FAQs

  • 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 TWD 1,763 on Cheapest nonstop routes (e.g. ISP to BOS on Sun, Jan 11), while Jetblue Airways offers Cheapest nonstop round-trips from TWD 14,076 departing on Wed, Jan 7 and returning on Thu, Jan 8.
  • It takes about 1 hour 27 minutes to fly from Islip (ISP) to Boston (BOS).
  • 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.
  • 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 TWD 1,763.
    · 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.
  • The cheapest months to fly from Islip to Boston is November, when demand for travel is lower.
  • 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 TWD 14,799.
  • The time difference between Boston and Islip is 0h.
  • 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.

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