Seen operating · 48 dates
UA 821
United Airlines flight UA 821 from Bangkok to Los Angeles, usually departing 15:45 local time with about 18h 25m in the air.
Fares and airlines on BKK–LAX →BKK
LAX
SCHEDULED · 8,259 mi
map · d3-geo · world-atlas · live position ADSB.lol (ODbL)
15:45
Departs BKK (local)
18h 25m
Scheduled flight time
13,292 km
8,259 miles
48
Operating dates seen
Flight UA 821
What we can confirm
Only figures a dated source supplied. Times are local and change with the season — check with United Airlines before you fly.
Route
BKK → LAX
Suvarnabhumi Airport to Los Angeles International Airport
Usual departure
15:45 local
Most common time across 48 dates
Flight time
18h 25m
Scheduled, departure to arrival
Distance
13,292 km
Great-circle, 8,259 miles
Dates seen
12 Sept 2026 – 25 Jan 2027
48 operating dates
Also flown as
HKG-LAX
Same number, other airport pairs
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.
- Live position, when the aircraft is airborne and in receiver coverage: ADSB.lol (ODbL 1.0).
Data refreshed 11 Sept 2026. We never estimate a time or route to fill a gap.
From the window seat
#UA821 on the grid
Public posts tagged #UA821 on YouTube, Bluesky and Mastodon.
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