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OKO to ROI: distance & flight time
Yokota (Yokota Air Base) → Roi Et (Roi Et Airport)
2,571 mi
4,138 km · 2,235 nm
5h 31m
estimated nonstop flight time
-2h
time difference · heading west
See live OKO→ROI fares Phone-only fares on this route — call free
Flight time details
2,571 miles nonstop takes roughly 5h 31m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- OKO — Yokota Air Base · Yokota, Japan
- ROI — Roi Et Airport · Roi Et, Thailand
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 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
Near ROI
- KKC · Khon Kaen Airport70 mi away
- BFV · Buri Ram Airport70 mi away
- ZVK · Savannakhet Airport72 mi away
- SNO · Sakon Nakhon Airport78 mi away
Frequently asked questions
How far is OKO from ROI?
The flight distance from Yokota (OKO) to Roi Et (ROI) is 2,571 miles (4,138 km, 2,235 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OKO to ROI?
A nonstop flight takes about 5h 31m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from OKO to ROI?
Nonstop service on OKO–ROI depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 5h 31m nonstop estimate.
What is the time difference between Yokota and Roi Et?
Roi Et is 2 hours behind Yokota.
What is the cheapest way to fly from OKO to ROI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OKO–ROI that never appear on search engines, with no booking fees.
Why are some OKO to ROI fares phone-only?
Consolidator contracts let us sell certain OKO–ROI tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.