Southwest Airlines (WN) flights from Islip (ISP).

United States

Albuquerque (ABQ) Direct

Available flights:

WN 3215

United States

Atlanta (ATL) Direct

Available flights:

United States

Baltimore (BWI) Direct

Available flights:

WN 207
WN 321
WN 862
WN 909
WN 921
WN 993
WN 1076
WN 1077
WN 1187
WN 1257
WN 1553
WN 1627
WN 1683
WN 1714
WN 1744
WN 1873
WN 1957
WN 2029
WN 2078
WN 2106
WN 2141
WN 2143
WN 2145
WN 2160
WN 2307
WN 2415
WN 2450
WN 2874
WN 2939
WN 3077
WN 3081
WN 3215
WN 3594
WN 3847
WN 3968
WN 4009
WN 4584
WN 4874
WN 4884
WN 5077

United States

Boise (BOI) Direct

Available flights:

WN 133

United States

Buffalo (BUF) Direct

Available flights:

WN 1076

United States

Dallas Love Field (DAL) Direct

Available flights:

United States

Denver (DEN) Direct

Available flights:

WN 921

United States

Fort Lauderdale (FLL) Direct

Available flights:

WN 3621

United States

Houston Hobby (HOU) Direct

Available flights:

WN 1683

United States

John Glenn Columbus (CMH) Direct

Available flights:

WN 921

United States

Las Vegas Harry Reid (LAS) Direct

Available flights:

WN 523

United States

Nashville (BNA) Direct

Available flights:

WN 3847

United States

New Orleans (MSY) Direct

Available flights:

WN 2874

United States

Orlando (MCO) Direct

Available flights:

United States

Phoenix Sky Harbor (PHX) Direct

Available flights:

United States

San Diego (SAN) Direct

Available flights:

United States

Tampa (TPA) Direct

Available flights:

United States

West Palm Beach (PBI) Direct

Available flights: