Buffalo to Islip flights in May 2027

Saved fares include round trips from $390 and one-way flights from $205 for one adult in economy. Fare observations: October 29, 2026.

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

BUF → ISP · May 2027 · One adult in economy

Travel dates	Airline	Stops	Total (USD)
May 1, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$205
May 1, 2027 – May 4, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$390
May 1, 2027 – May 8, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$390
May 2, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$205
May 2, 2027 – May 5, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$390
May 2, 2027 – May 9, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$390
May 3, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$205
May 3, 2027 – May 6, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$390
May 3, 2027 – May 10, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$390
May 4, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$205
May 4, 2027 – May 7, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$390
May 4, 2027 – May 11, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$390
May 5, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$205
May 5, 2027 – May 8, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$390
May 5, 2027 – May 12, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$390
May 6, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$205
May 6, 2027 – May 9, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$390
May 6, 2027 – May 13, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$390
May 7, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$205
May 7, 2027 – May 10, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$390
May 7, 2027 – May 14, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$390
May 8, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$205
May 8, 2027 – May 11, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$390
May 8, 2027 – May 15, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$390
May 9, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$205
May 9, 2027 – May 12, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$390
May 9, 2027 – May 16, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$390
May 10, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$205
May 10, 2027 – May 13, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$390
May 10, 2027 – May 17, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$390
May 11, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$205
May 11, 2027 – May 14, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$390
May 11, 2027 – May 18, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$390
May 12, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$205
May 12, 2027 – May 15, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$390
May 12, 2027 – May 19, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$390
May 13, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$205
May 13, 2027 – May 16, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$390
May 13, 2027 – May 20, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$390
May 14, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$205
May 14, 2027 – May 17, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$390
May 14, 2027 – May 21, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$390
May 15, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$205
May 15, 2027 – May 18, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$390
May 15, 2027 – May 22, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$390
May 16, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$205
May 16, 2027 – May 19, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$390
May 16, 2027 – May 23, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$390
May 17, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$205
May 17, 2027 – May 20, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$390
May 17, 2027 – May 24, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$390
May 18, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$205
May 18, 2027 – May 21, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$390
May 18, 2027 – May 25, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$390
May 19, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$205
May 19, 2027 – May 22, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$390
May 19, 2027 – May 26, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$390
May 20, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$205
May 20, 2027 – May 23, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$390
May 20, 2027 – May 27, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$390
May 21, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$205
May 21, 2027 – May 24, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$390
May 21, 2027 – May 28, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$419
May 22, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$205
May 22, 2027 – May 25, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$390
May 22, 2027 – May 29, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$419
May 23, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$205
May 23, 2027 – May 26, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$390
May 23, 2027 – May 30, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$419
May 24, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$205
May 24, 2027 – May 27, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$390
May 24, 2027 – May 31, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$419
May 25, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$205
May 25, 2027 – May 28, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$419
May 25, 2027 – Jun 1, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$390
May 26, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$205
May 26, 2027 – May 29, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$419
May 26, 2027 – Jun 2, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$390
May 27, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$205
May 27, 2027 – May 30, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$419
May 27, 2027 – Jun 3, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$390
May 28, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$236
May 28, 2027 – May 31, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$449
May 28, 2027 – Jun 4, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$419
May 29, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$236
May 29, 2027 – Jun 1, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$419
May 29, 2027 – Jun 5, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$419
May 30, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$236
May 30, 2027 – Jun 2, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$419
May 30, 2027 – Jun 6, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$419
May 31, 2027 · One way	Southwest Airlines	Up to 1 stop each way	$236
May 31, 2027 – Jun 3, 2027 · 3 nights	Southwest Airlines	Up to 1 stop each way	$419
May 31, 2027 – Jun 7, 2027 · 7 nights	Southwest Airlines	Up to 1 stop each way	$419

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All months for Buffalo to Islip

Hotels in New Haven, Connecticut with Axel

Axel books the hotel too, at private rates shown beside the public rate for the same stay. Hotels in New Haven, Connecticut has the best recent deals, and a flight booked with Axel can make the hotel cheaper through the bundle.

Hotel details in New Haven, Connecticut: Courtyard by Marriott New Haven Orange-Milford · Hampton Inn & Suites New Haven - South - West Haven · All 28 hotels in New Haven, Connecticut

Near ISP: Holiday Inn Express Stony Brook by IHG (South Setauket) · Hilton Garden Inn Stony Brook (Stony Brook) · Hilton Garden Inn Islip/MacArthur Airport (Ronkonkoma)

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