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PSM to OIR: distance & flight time
Portsmouth (Portsmouth International at Pease Airport) → Okushiri (Okushiri Airport)
6,261 mi
10,076 km · 5,440 nm
12h 45m
estimated nonstop flight time
+13h
time difference · heading north
See live PSM→OIR fares Phone-only fares on this route — call free
Flight time details
6,261 miles nonstop takes roughly 12h 45m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time gain when reading arrival times on your ticket.
The two airports
- PSM — Portsmouth International at Pease Airport · Portsmouth, United States
- OIR — Okushiri Airport · Okushiri, Japan
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near PSM
- BOS · General Edward Lawrence Logan International Airport50 mi away
- LWM · Lawrence Municipal Airport29 mi away
- MHT · Manchester-Boston Regional Airport33 mi away
- BVY · Beverly Municipal Airport34 mi away
Near OIR
- HKD · Hakodate Airport74 mi away
- AOJ · Aomori Airport113 mi away
- OKD · Okadama Airport123 mi away
- CTS · New Chitose Airport125 mi away
Frequently asked questions
How far is PSM from OIR?
The flight distance from Portsmouth (PSM) to Okushiri (OIR) is 6,261 miles (10,076 km, 5,440 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PSM to OIR?
A nonstop flight takes about 12h 45m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Portsmouth and Okushiri?
Okushiri is 13 hours ahead of Portsmouth.
What is the cheapest way to fly from PSM to OIR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PSM–OIR that never appear on search engines, with no booking fees.