Islip to Portsmouth (ISP–PSM) — Airlines, Schedules & Connections

ISP Airport Page →
196 mi airlines charter/private
On-time Some delays Frequent delays
Connecting Flight Schedule 2 1-stop flights Verified 2mos ago
Charter / private route. No scheduled airline service — operated by charter & private aviation.
Nonstop Charter / private 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop

No flights match your filters.

No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.

✦ 1-Stop connections via 2 hubs
MCO Orlando 11h 26m B6F9WN → MX Orlando (MCO) to Portsmouth flights
RDU Raleigh/Durham ~5h 12m MX → MX Raleigh/Durham (RDU) to Portsmouth flights
✦ 1-STOP More options, longer trips
✧ 2-STOP Loading... Reach the hardest destinations
Islip to Portsmouth
Flown by charter / private operators — no scheduled airline service.
196 mi 0h 57m nonstop

ISP–PSM has no scheduled airline service; it is flown by charter / private operators. 1-stop connecting options are also available.

Also explore Browse available seat maps ISP Routes PSM Routes ISP Live Flights PSM Live Flights ISP Delays
All flights from Portsmouth (PSM) Portsmouth to Islip flights
Connections

Connection Landscape

1-stop and 2-stop options for ISP to PSM.
1-STOP
One-Stop Connections
2
Hubs
~5h
Fastest
~11h
Longest
RDU ~5h 12m MCO ~11h 26m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
20
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.
Reliability

On-Time Performance

What to expect at each end of your journey.
Outbound
ISP → PSM
100%
Generally reliable. Most flights run on time.
Departing
100%
Return
PSM → ISP
67%
Moderate delays possible. Allow buffer time.
Arriving
67%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. ISP delays →
Alternatives

Other ways to reach Portsmouth from Islip

Nearby airports with service to Portsmouth International Airport at Pease.
Metric ISP→PSM HPN→PSM JFK→PSM
Distance from ISP – 37 mi 37 mi
Nonstop airlines – 2 1
Weekly flights – 1 1
Flight time 0h 57m 0h 50m 0h 50m
Departure OTP 100% – –
White Plains (HPN) to Portsmouth flights · New York (JFK) to Portsmouth flights · New York (LGA) to Portsmouth flights
Airports within 200 miles of ISP with service to Portsmouth International Airport at Pease.
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
0h
Portsmouth is 0 hours the same as Islip.
ISP: EDT · PSM: EDT

When it's 6:00 PM in Islip, it's 6:00 PM in Portsmouth.
Distance & Flight Time
196 mi / 316 km
Nonstop flight time is approximately 0h 57m gate to gate.
Facts

ISP–PSM Quick Facts

Key statistics for the Islip to Portsmouth route.
Route details
Distance196 mi / 316 km
Flight time0h 57m
Time difference0 hours
Airlines (nonstop)Charter / private
1-stop connectionsAvailable
Origin: ISP
Full nameLong Island MacArthur Airport
IATA / ICAOISP / KISP
TimezoneAmerica/New_York
Passengers/yr1.4M
Elevation99 ft / 30 m
Destination: PSM
Full namePortsmouth International Airport at Pease
IATA / ICAOPSM / KPSM
TimezoneAmerica/New_York
Passengers/yr0.2M
Elevation100 ft / 30 m
FAQ

Frequently Asked Questions

Common questions about ISP to PSM flights.
Nonstop flights from Long Island MacArthur Airport to Portsmouth International Airport at Pease take about 0h 57m gate to gate. The route covers 196 miles.
Yes, 1-stop connections are available, ranked by layover time. Common connecting points include Orlando.
On a single ticket, yes. Your bags are checked through to PSM and move between planes without you. On two separate tickets you collect your bags at the connecting airport and recheck them, so build in extra layover time.
Nearby alternatives include HPN, JFK and LGA. See the Alternatives section for a full comparison.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Flights from ISP to PSM

Long Island MacArthur Airport (ISP) and Portsmouth International Airport at Pease (PSM) are connected through multiple connecting hub airports.

ISP to PSM Flight Duration and Schedule

Nonstop flight time from ISP to PSM is about 0 hours 57 minutes gate to gate. The route covers a distance of 196 miles (316 km).

Connecting Options and Alternatives

1-stop connecting options are also available, commonly via Orlando. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include White Plains (HPN), New York (JFK) and New York (LGA).