Buffalo to Islip flights in March 2027

Saved fares include round trips from $350 and one-way flights from $185 for one adult in economy. Fare observations: October 29, 2026.

Departure airports: Buffalo (BUF). Destination: Islip (ISP).

BUF → ISP · March 2027 · One adult in economy

Travel dates Airline Stops Total (USD)
Mar 1, 2027 · One way Southwest Airlines Up to 1 stop each way $185
Mar 1, 2027 – Mar 4, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $350
Mar 1, 2027 – Mar 8, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $350
Mar 2, 2027 · One way Southwest Airlines Up to 1 stop each way $185
Mar 2, 2027 – Mar 5, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $350
Mar 2, 2027 – Mar 9, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $350
Mar 3, 2027 · One way Southwest Airlines Up to 1 stop each way $185
Mar 3, 2027 – Mar 6, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $350
Mar 3, 2027 – Mar 10, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $350
Mar 4, 2027 · One way Southwest Airlines Up to 1 stop each way $185
Mar 4, 2027 – Mar 7, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $350
Mar 4, 2027 – Mar 11, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $350
Mar 5, 2027 · One way Southwest Airlines Up to 1 stop each way $185
Mar 5, 2027 – Mar 8, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $350
Mar 5, 2027 – Mar 12, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $350
Mar 6, 2027 · One way Southwest Airlines Up to 1 stop each way $185
Mar 6, 2027 – Mar 9, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $350
Mar 6, 2027 – Mar 13, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $350
Mar 7, 2027 · One way Southwest Airlines Up to 1 stop each way $185
Mar 7, 2027 – Mar 10, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $350
Mar 7, 2027 – Mar 14, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $350
Mar 8, 2027 · One way Southwest Airlines Up to 1 stop each way $185
Mar 8, 2027 – Mar 11, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $350
Mar 8, 2027 – Mar 15, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $350
Mar 9, 2027 · One way Southwest Airlines Up to 1 stop each way $185
Mar 9, 2027 – Mar 12, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $350
Mar 9, 2027 – Mar 16, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $350
Mar 10, 2027 · One way Southwest Airlines Up to 1 stop each way $185
Mar 10, 2027 – Mar 13, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $350
Mar 10, 2027 – Mar 17, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $350
Mar 11, 2027 · One way Southwest Airlines Up to 1 stop each way $185
Mar 11, 2027 – Mar 14, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $350
Mar 11, 2027 – Mar 18, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $350
Mar 12, 2027 · One way Southwest Airlines Up to 1 stop each way $185
Mar 12, 2027 – Mar 15, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $350
Mar 12, 2027 – Mar 19, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $350
Mar 13, 2027 · One way Southwest Airlines Up to 1 stop each way $185
Mar 13, 2027 – Mar 16, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $350
Mar 13, 2027 – Mar 20, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $350
Mar 14, 2027 · One way Southwest Airlines Up to 1 stop each way $185
Mar 14, 2027 – Mar 17, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $350
Mar 14, 2027 – Mar 21, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $350
Mar 15, 2027 · One way Southwest Airlines Up to 1 stop each way $185
Mar 15, 2027 – Mar 18, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $350
Mar 15, 2027 – Mar 22, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $350
Mar 16, 2027 · One way Southwest Airlines Up to 1 stop each way $185
Mar 16, 2027 – Mar 19, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $350
Mar 16, 2027 – Mar 23, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $350
Mar 17, 2027 · One way Southwest Airlines Up to 1 stop each way $185
Mar 17, 2027 – Mar 20, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $350
Mar 17, 2027 – Mar 24, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $350
Mar 18, 2027 · One way Southwest Airlines Up to 1 stop each way $185
Mar 18, 2027 – Mar 21, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $350
Mar 18, 2027 – Mar 25, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $376
Mar 19, 2027 · One way Southwest Airlines Up to 1 stop each way $185
Mar 19, 2027 – Mar 22, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $350
Mar 19, 2027 – Mar 26, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $376
Mar 20, 2027 · One way Southwest Airlines Up to 1 stop each way $185
Mar 20, 2027 – Mar 23, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $350
Mar 20, 2027 – Mar 27, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $376
Mar 21, 2027 · One way Southwest Airlines Up to 1 stop each way $185
Mar 21, 2027 – Mar 24, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $350
Mar 21, 2027 – Mar 28, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $399
Mar 22, 2027 · One way Southwest Airlines Up to 1 stop each way $185
Mar 22, 2027 – Mar 25, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $376
Mar 22, 2027 – Mar 29, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $399
Mar 23, 2027 · One way Southwest Airlines Up to 1 stop each way $185
Mar 23, 2027 – Mar 26, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $376
Mar 23, 2027 – Mar 30, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $370
Mar 24, 2027 · One way Southwest Airlines Up to 1 stop each way $185
Mar 24, 2027 – Mar 27, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $376
Mar 24, 2027 – Mar 31, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $370
Mar 25, 2027 · One way Southwest Airlines Up to 1 stop each way $213
Mar 25, 2027 – Mar 28, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $426
Mar 25, 2027 – Mar 29, 2027 · 4 nights Southwest Airlines Up to 1 stop each way $426
Mar 25, 2027 – Apr 1, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $387
Mar 26, 2027 · One way Southwest Airlines Up to 1 stop each way $213
Mar 26, 2027 – Mar 29, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $426
Mar 26, 2027 – Apr 2, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $387
Mar 27, 2027 · One way Southwest Airlines Up to 1 stop each way $213
Mar 27, 2027 – Mar 30, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $396
Mar 27, 2027 – Apr 3, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $387
Mar 28, 2027 · One way Southwest Airlines Up to 1 stop each way $236
Mar 28, 2027 – Mar 31, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $419
Mar 28, 2027 – Apr 4, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $410
Mar 29, 2027 · One way Southwest Airlines Up to 1 stop each way $236
Mar 29, 2027 – Apr 1, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $410
Mar 29, 2027 – Apr 5, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $410
Mar 30, 2027 · One way Southwest Airlines Up to 1 stop each way $205
Mar 30, 2027 – Apr 2, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $380
Mar 30, 2027 – Apr 6, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $380
Mar 31, 2027 · One way Southwest Airlines Up to 1 stop each way $205
Mar 31, 2027 – Apr 3, 2027 · 3 nights Southwest Airlines Up to 1 stop each way $380
Mar 31, 2027 – Apr 7, 2027 · 7 nights Southwest Airlines Up to 1 stop each way $380

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Near ISP: Holiday Inn Express Stony Brook by IHG (South Setauket) · Courtyard by Marriott Long Island Islip/Courthouse Complex (Central Islip) · Holiday Inn Long Island-Islip Arpt East by IHG (Holtsville)

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