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HIO to OKO: distance & flight time
Hillsboro (Portland Hillsboro Airport) → Yokota (Yokota Air Base)
4,842 mi
7,792 km · 4,207 nm
9h 58m
estimated nonstop flight time
+16h
time difference · heading northwest
See live HIO→OKO fares Phone-only fares on this route — call free
Flight time details
4,842 miles nonstop takes roughly 9h 58m 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
- OKO — Yokota Air Base · Yokota, 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 OKO
- HND · Tokyo Haneda International Airport28 mi away
- NRT · Narita International Airport58 mi away
- NJA · Atsugi Naval Air Facility21 mi away
- IBR · Hyakuri Airport67 mi away
Frequently asked questions
How far is HIO from OKO?
The flight distance from Hillsboro (HIO) to Yokota (OKO) is 4,842 miles (7,792 km, 4,207 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HIO to OKO?
A nonstop flight takes about 9h 58m 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 Yokota?
Yokota is 16 hours ahead of Hillsboro.
What is the cheapest way to fly from HIO to OKO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HIO–OKO that never appear on search engines, with no booking fees.