Need help booking?
Unpublished phone-only deals available
STL to UBJ: distance & flight time
St. Louis (St Louis Lambert International Airport) → Yamaguchi (Yamaguchi Ube Airport)
6,751 mi
10,865 km · 5,867 nm
13h 42m
estimated nonstop flight time
+14h
time difference · heading northwest
See live STL→UBJ fares Phone-only fares on this route — call free
Flight time details
6,751 miles nonstop takes roughly 13h 42m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time gain when reading arrival times on your ticket.
The two airports
- STL — St Louis Lambert International Airport · St. Louis, United States
- UBJ — Yamaguchi Ube Airport · Yamaguchi, 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 STL
- SUS · Spirit of St Louis Airport16 mi away
- ALN · St Louis Regional Airport20 mi away
- BLV · Scott AFB/Midamerica Airport32 mi away
- SPI · Abraham Lincoln Capital Airport84 mi away
Near UBJ
- KKJ · Kitakyūshū Airport15 mi away
- OIT · Oita Airport41 mi away
- FUK · Fukuoka Airport53 mi away
- IWK · Iwakuni Marine Corps Air Station57 mi away
Frequently asked questions
How far is STL from UBJ?
The flight distance from St. Louis (STL) to Yamaguchi (UBJ) is 6,751 miles (10,865 km, 5,867 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from STL to UBJ?
A nonstop flight takes about 13h 42m 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 St. Louis and Yamaguchi?
Yamaguchi is 14 hours ahead of St. Louis.
What is the cheapest way to fly from STL to UBJ?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on STL–UBJ that never appear on search engines, with no booking fees.