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OKO to ALN: distance & flight time
Yokota (Yokota Air Base) → Alton/St Louis (St Louis Regional Airport)
6,394 mi
10,290 km · 5,556 nm
13h
estimated nonstop flight time
—
time difference · heading northeast
See live OKO→ALN fares Phone-only fares on this route — call free
Flight time details
6,394 miles nonstop takes roughly 13h gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- OKO — Yokota Air Base · Yokota, Japan
- ALN — St Louis Regional Airport · Alton/St Louis, 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 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 ALN
- STL · St Louis Lambert International Airport20 mi away
- BLV · Scott AFB/Midamerica Airport26 mi away
- SUS · Spirit of St Louis Airport36 mi away
- SPI · Abraham Lincoln Capital Airport69 mi away
Frequently asked questions
How far is OKO from ALN?
The flight distance from Yokota (OKO) to Alton/St Louis (ALN) is 6,394 miles (10,290 km, 5,556 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OKO to ALN?
A nonstop flight takes about 13h 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 cheapest way to fly from OKO to ALN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OKO–ALN that never appear on search engines, with no booking fees.