What is the cheapest month to fly from Islip to Boston?

Based on current 6-month forward fare data, May 2026 is the cheapest month to fly from Islip (ISP) to Boston (BOS), with fares starting from $252.

What is the lowest current fare from ISP to BOS?

The lowest currently-listed fare from Islip (ISP) to Boston (BOS) is $252 on 2026-05-27.

Direct flights from ISP to BOS cover approximately 246 km (153 miles), with an estimated flight time of 17m. Operating airlines: 9K.

Cheapest current fares: $252 in May 2026, 246 km direct flight in ~17m.

Last updated May 24, 2026 · By Flightmaps Editorial

Lowest available fare per calendar month from Islip (ISP) to Boston (BOS). Refreshed daily.

What is the cheapest month to fly from Islip to Boston?

Based on current 6-month forward fare data, May 2026 is the cheapest month to fly from Islip (ISP) to Boston (BOS), with fares starting from $252.
What is the lowest current fare from ISP to BOS?

The lowest currently-listed fare from Islip (ISP) to Boston (BOS) is $252 on 2026-05-27.
How long is the flight from Islip to Boston?

Direct flights from ISP to BOS cover approximately 246 km (153 miles), with an estimated flight time of 17m. Operating airlines: 9K.

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