Airport gate intelligence · ISP
How many gates does Long Island/Islip Airport (ISP) have?
Long Island/Islip Airport (ISP) has 11 gates, with about 18 airline departures a day. Southwest has the most (2), followed by JetBlue (1).
Southwest flies 44% of the 2,391 seats leaving ISP each day. Southwest has 100% more gates and 80% more seats than JetBlue. 1 gate is common use, shared by several airlines.
Gates, seats and flights by airline at ISP
| Airline | Gates held | Departures a day | Seats out a day | Share of seats | Seats per departure | Regional jets | Median turn |
|---|---|---|---|---|---|---|---|
| Southwest | 2 | 6 | 1,060 | 44% | 166 | 0% | 53 min |
| JetBlue | 1 | 4 | 587 | 25% | 162 | 0% | 63 min |
| Breeze | 1 | 4 | 531 | 22% | 137 | 0% | 44 min |
| Frontier | – | 1 | 214 | 9% | 214 | 0% | 54 min |
| Cape Air | – | 2 | 0 | 0% | – | 65% | 137 min |
| Common use (shared) | 1 | ||||||
Average of 8 full days, Oct 3 to Oct 12, 2026. Gates held = the airline flying the gate most (regional partners count as their brand); 5 gates saw few or no flights (not in use or under repair). Seats are capacity, from each airline’s seat map per aircraft type; 9% of flights have no seat count yet.
What size aircraft ISP’s gates handle
Gates by the largest aircraft seen there at least twice. A gate that takes a wide-body also takes anything smaller.
Airlines at ISP: terminals, gates and nonstop routes
Other airlines
Regular flights, but no ISP gate listed in the flight data, so not on the map: Cape Air (97 flights to Boston and Hyannis).
Seen on only one of the full days collected (charters and occasional flights): O2 (1 flight).
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ISP gate questions
How many gates does Long Island/Islip Airport (ISP) have?
Long Island/Islip Airport (ISP) has 11 gates, with about 18 airline departures a day. Southwest has the most (2), followed by JetBlue (1).
Which airline has the most gates at Long Island/Islip Airport (ISP)?
Southwest, with 2 of the 11 gates at ISP (the airline flying each gate most; regional partners count as their brand).
How many flights a day leave Long Island/Islip Airport (ISP)?
About 18 airline departures a day (Oct 3 to Oct 12, 2026).
Which terminal is Southwest in at ISP?
Southwest flies from Concourse A at Long Island/Islip Airport (ISP).
How many gates does Southwest have at ISP?
2 gates, with about 6 departures and 1,060 seats a day.
How many gates does JetBlue have at ISP?
1 gate, with about 4 departures and 587 seats a day.
How many gates does Breeze have at ISP?
1 gate, with about 4 departures and 531 seats a day.
How many seats leave ISP each day?
About 2,391 seats on 18 airline departures a day (average of 8 full days, Oct 3 to Oct 12, 2026).
What is the typical turn time at ISP?
53 minutes at the gate from arrival to departure (median of every turn measured).