1 route outbound only · 1 route inbound only
Measured from flights observed on Islip’s own departure and arrival boards over the last 14 days. Every route below carries its observed weekly frequency.
All ISP nonstop destinations, ranked by weekly flights
One row per destination, both directions merged. On time means within 15 minutes of schedule; cancelled is the share of observed legs that never went. Routes with fewer than 20 observed legs show their leg count instead of a shaky number.
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Nonstop flights into Islip
11 of the 13 destinations above also fly nonstop into Islip, so the table covers both directions of each route. Each route row links to its own route page with the paired schedule history.
1 route appeared outbound only in the observed window; 1 route appears inbound only. These are usually seasonal charter rotations or positioning patterns that the boards record separately.
ISP route map: where 13 nonstop routes go
ISP direct flights: questions travelers ask
How many direct flights does Islip have?
Long Island MacArthur Airport currently has nonstop service to 13 destinations on 6 airlines, based on flights observed on the airport's own boards over the last 14 days. 11 of those routes operate in both directions.
Which airline flies the most nonstop routes from Islip?
Breeze Airways appears on 7 of the 13 nonstop routes we observed at ISP. The airline column in the route ledger lists every carrier observed on each route.
Where does this data come from?
From Long Island MacArthur Airport's own departure and arrival boards, recorded continuously by Pro Flight Search. Reliability figures cover the last 90 days; the route list covers the last 14 days of observed service.
More nonstop guides
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search: Islip (ISP) nonstop network and route reliability, measured from official airport boards.
https://proflightsearch.com/direct-flights/islip-ISP
Planning around ISP? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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