Need help booking?
Unpublished phone-only deals available
KSL to OKO: distance & flight time
Kassala (Kassala Airport) → Yokota (Yokota Air Base)
6,303 mi
10,143 km · 5,477 nm
12h 49m
estimated nonstop flight time
+7h
time difference · heading northeast
See live KSL→OKO fares Phone-only fares on this route — call free
Flight time details
6,303 miles nonstop takes roughly 12h 49m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time gain when reading arrival times on your ticket.
The two airports
- KSL — Kassala Airport · Kassala, Sudan
- 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 KSL
- HUE · Humera Airport80 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 KSL from OKO?
The flight distance from Kassala (KSL) to Yokota (OKO) is 6,303 miles (10,143 km, 5,477 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KSL to OKO?
A nonstop flight takes about 12h 49m 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 KSL to OKO?
Nonstop service on KSL–OKO 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 12h 49m nonstop estimate.
What is the time difference between Kassala and Yokota?
Yokota is 7 hours ahead of Kassala.
What is the cheapest way to fly from KSL to OKO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KSL–OKO that never appear on search engines, with no booking fees.
Why are some KSL to OKO fares phone-only?
Consolidator contracts let us sell certain KSL–OKO 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.