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OIR to WBU: distance & flight time
Okushiri (Okushiri Airport) → Boulder (Boulder Municipal Airport)
5,470 mi
8,804 km · 4,754 nm
11h 12m
estimated nonstop flight time
-15h
time difference · heading northeast
See live OIR→WBU fares Phone-only fares on this route — call free
Flight time details
5,470 miles nonstop takes roughly 11h 12m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time set-back when reading arrival times on your ticket.
The two airports
- OIR — Okushiri Airport · Okushiri, Japan
- WBU — Boulder Municipal Airport · Boulder, United States
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 OIR
- HKD · Hakodate Airport74 mi away
- AOJ · Aomori Airport113 mi away
- OKD · Okadama Airport123 mi away
- CTS · New Chitose Airport125 mi away
Near WBU
- DEN · Denver International Airport32 mi away
- BJC · Rocky Mountain Metropolitan Airport11 mi away
- FNL · Northern Colorado Regional Airport31 mi away
- BFK · Buckley Air Force Base34 mi away
Frequently asked questions
How far is OIR from WBU?
The flight distance from Okushiri (OIR) to Boulder (WBU) is 5,470 miles (8,804 km, 4,754 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OIR to WBU?
A nonstop flight takes about 11h 12m 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 Okushiri and Boulder?
Boulder is 15 hours behind Okushiri.
What is the cheapest way to fly from OIR to WBU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OIR–WBU that never appear on search engines, with no booking fees.