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NGS to WBU: distance & flight time
Nagasaki (Nagasaki Airport) → Boulder (Boulder Municipal Airport)
6,289 mi
10,121 km · 5,465 nm
12h 48m
estimated nonstop flight time
-15h
time difference · heading northeast
See live NGS→WBU fares Phone-only fares on this route — call free
Flight time details
6,289 miles nonstop takes roughly 12h 48m 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
- NGS — Nagasaki Airport · Nagasaki, 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 NGS
- HSG · Saga Airport28 mi away
- AXJ · Amakusa Airport33 mi away
- KMJ · Kumamoto Airport55 mi away
- FUK · Fukuoka Airport56 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 NGS from WBU?
The flight distance from Nagasaki (NGS) to Boulder (WBU) is 6,289 miles (10,121 km, 5,465 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from NGS to WBU?
A nonstop flight takes about 12h 48m 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 Nagasaki and Boulder?
Boulder is 15 hours behind Nagasaki.
What is the cheapest way to fly from NGS to WBU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on NGS–WBU that never appear on search engines, with no booking fees.