Cheap flights from Boise to Islip (BOI - ISP)

Find a great deal and save up to 29% by booking at least 27 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Boise to Islip within the next two weeks, with the cheapest ticket starting at $607.

Our data shows that February tends to be the cheapest month to fly to Islip from Boise. Users have commonly found prices around $520 for the month, but tickets can be as low as $289. Due to multiple factors, prepare for potentially higher prices in November.

When flying from Boise to Islip, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Looking for the cheapest flight from Boise to Islip? While on average our users pay $1,368, our data indicates the cheapest price to be $1,368. The most popular route (Boise Air Term. Gowen Fld - Islip Long Island), is priced around $787.

Great question - BOI to ISP just means Boise Air Term. Gowen Fld Airport to Islip Long Island Airport. Now you’ll know what these unique codes when you look for flights!