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HIO to OIM: distance & flight time
Hillsboro (Portland Hillsboro Airport) → Oshima (Oshima Airport)
4,886 mi
7,864 km · 4,246 nm
10h 3m
estimated nonstop flight time
+16h
time difference · heading northwest
See live HIO→OIM fares Phone-only fares on this route — call free
Flight time details
4,886 miles nonstop takes roughly 10h 3m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 16-hour time gain when reading arrival times on your ticket.
The two airports
- HIO — Portland Hillsboro Airport · Hillsboro, United States
- OIM — Oshima Airport · Oshima, 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 HIO
- PDX · Portland International Airport17 mi away
- TTD · Portland Troutdale Airport27 mi away
- KLS · Southwest Washington Regional Airport40 mi away
- OTK · Tillamook Airport43 mi away
Near OIM
- HND · Tokyo Haneda International Airport58 mi away
- NJA · Atsugi Naval Air Facility47 mi away
- NRT · Narita International Airport89 mi away
- MYE · Miyakejima Airport50 mi away
Frequently asked questions
How far is HIO from OIM?
The flight distance from Hillsboro (HIO) to Oshima (OIM) is 4,886 miles (7,864 km, 4,246 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HIO to OIM?
A nonstop flight takes about 10h 3m 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 Hillsboro and Oshima?
Oshima is 16 hours ahead of Hillsboro.
What is the cheapest way to fly from HIO to OIM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HIO–OIM that never appear on search engines, with no booking fees.