Compare Islip, Long Island (ISP) Flights starting at $250
expand_more
1 Passenger, Economy
expand_morePromo Code
expand_moretoday
today
Book the lowest fares to Islip, Long Island
flight_takeoff
flight_land
Boston (BOS)to
Islip, Long Island (ISP)Depart: 01/12/2026
Fares From
$250
Viewed: 22 hours ago
One-way
Economy
Augusta, ME (AUG)to
Islip, Long Island (ISP)Depart: 01/16/2026
Fares From
$313
Viewed: 1 day ago
One-way
Economy
Hyannis (HYA)to
Islip, Long Island (ISP)Depart: 01/24/2026
Fares From
$343
Viewed: 1 day ago
One-way
Economy
Lebanon, NH (LEB)to
Islip, Long Island (ISP)Depart: 01/31/2026
Fares From
$303
Viewed: 3 hours ago
One-way
Economy
*Fares displayed have been collected within the last 48hrs and may no longer be available at time of booking.
Best Islip, Long Island flight deals
flight_takeoff
flight_land
From | To | Fare Type | Dates | Price |
|---|---|---|---|---|
| Boston (BOS) | Islip, Long Island (ISP) | One-way / Economy | Depart: 01/12/2026 | Fares From $250 Viewed: 22 hours ago |
| Augusta, ME (AUG) | Islip, Long Island (ISP) | One-way / Economy | Depart: 01/16/2026 | Fares From $313 Viewed: 1 day ago |
| Hyannis (HYA) | Islip, Long Island (ISP) | One-way / Economy | Depart: 01/24/2026 | Fares From $343 Viewed: 1 day ago |
| Lebanon, NH (LEB) | Islip, Long Island (ISP) | One-way / Economy | Depart: 01/31/2026 | Fares From $303 Viewed: 3 hours ago |
*Fares displayed have been collected within the last 48hrs and may no longer be available at time of booking.