Seen operating · 14 dates
HK Express flight
UO 646
HK Express flight UO 646 from Hong Kong to Narita, usually departing 13:00 local time with about 4h 25m in the air.
Fares and airlines on HKG–NRT →HKG
NRT
SCHEDULED · 1,841 mi
map · d3-geo · world-atlas · live position ADSB.lol (ODbL)
13:00
Departs HKG (local)
4h 25m
Scheduled flight time
2,962 km
1,841 miles
14
Operating dates seen
Flight UO 646
What we can confirm
Only figures a dated source supplied. Times are local and change with the season — check with HK Express before you fly.
Route
HKG → NRT
Hong Kong International Airport to Narita International Airport
Usual departure
13:00 local
Most common time across 14 dates
Flight time
4h 25m
Scheduled, departure to arrival
Distance
2,962 km
Great-circle, 1,841 miles
Dates seen
12 Sept 2026 – 9 Mar 2027
14 operating dates
Where this comes from
- Nonstop fares travellers found for specific dates (Travelpayouts fare data)
- VRS standing-data community route database (CC0) lists the same airports.
Data refreshed 11 Sept 2026. We never estimate a time or route to fill a gap.
From the window seat
#UO646 on the grid
Public posts tagged #UO646 on YouTube, Bluesky and Mastodon.
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