Concord (USA) to Islip (ISP) flights
One airline flies nonstop from Concord (USA) to Islip (ISP): Avelo Airlines. The two airports are 557 miles (897 km) apart. There are also 1 way to fly it with one stop, through Orlando.
Airlines flying nonstop from USA to ISP
- Avelo AirlinesNot in an alliance

USA to ISP with one stop
1 connection, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Orlando (MCO)Avelo Airlines, then Frontier Airlines, Southwest Airlines and 1 more




USA to ISP: common questions
Which airlines fly nonstop from USA to ISP?
Avelo Airlines flies nonstop from Concord (USA) to Islip (ISP).
How far is Concord from Islip by plane?
Concord (USA) and Islip (ISP) are 557 miles (897 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
How many miles does USA to ISP cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for USA to ISP with taxes and fees.
Where can I connect between Concord and Islip?
The most direct connections are through Orlando (MCO).
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.