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United Airlines

Is UA821 delayed?

Each route and date is shown separately. Confirm that both airports match your booking.

Service date: · Scheduled departure date (Asia/Hong_Kong)

Arrived

10 min early

Updated

Departure

Hong Kong

HKG

Actual

Scheduled 21:45

Aug 23

Arrival

Los Angeles

LAX

Actual

Scheduled 20:20

Aug 23

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Actual

Arrival · UTC

Scheduled
Estimated
Not available
Actual

Service date: · Scheduled departure date (Asia/Bangkok)

Estimated arrivalLast reported

On time

This update may be out of date. Check with your airline.

Update time unavailable

Departure

Bangkok

BKK

Scheduled

Aug 23

Arrival

Hong Kong

HKG

Estimated

Aug 23

Times shown in airport local time

Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual
Not available

Arrival · UTC

Scheduled
Estimated
Actual
Not available
Route overview: Hong Kong → Los AngelesHKGLAX
Route overview
Route overview: Bangkok → Hong KongBKKHKG
Route overview

Recent arrivals

Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.

  • BKK → HKG

    28 min early

  • HKG → LAX

    40 min early

  • BKK → HKG

    13 min early

  • HKG → LAX

    37 min early

  • BKK → HKG

    12 min late
Flight history and details

Aug 20, 2026 — Sep 19, 2026

Observed arrivals
53
Arrivals over 15 minutes late
3
Observed cancellations
2
Observed occurrences
55

Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.

How flight status works

UA821 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 19, 2026ArrivedBangkokHong Kong
-28
Sep 18, 2026ArrivedHong KongLos Angeles
-40
Sep 18, 2026ArrivedBangkokHong Kong
-13
Sep 17, 2026ArrivedHong KongLos Angeles
-37
Sep 17, 2026ArrivedBangkokHong Kong
12
Sep 16, 2026ArrivedHong KongLos Angeles
3
Sep 15, 2026CancelledHong KongLos AngelesNot available
Not available
Sep 15, 2026CancelledBangkokHong KongNot available
Not available
Sep 14, 2026ArrivedHong KongLos Angeles
-10
Sep 14, 2026ArrivedBangkokHong Kong
2
Sep 13, 2026ArrivedHong KongLos Angeles
-9
Sep 13, 2026ArrivedBangkokHong Kong
-28
Sep 12, 2026ArrivedHong KongLos Angeles
-9
Sep 12, 2026ArrivedBangkokHong Kong
-24
Sep 11, 2026ArrivedHong KongLos Angeles
-3
Sep 11, 2026ArrivedBangkokHong Kong
-25
Sep 10, 2026ArrivedHong KongLos Angeles
-14
Sep 10, 2026ArrivedBangkokHong Kong
5
Sep 9, 2026ArrivedHong KongLos Angeles
-23
Sep 9, 2026ArrivedBangkokHong Kong
-36
Sep 8, 2026ArrivedHong KongLos Angeles
16
Sep 8, 2026ArrivedBangkokHong Kong
-6
Sep 7, 2026ArrivedHong KongLos Angeles
-22
Sep 6, 2026ArrivedHong KongLos Angeles
-23
Sep 6, 2026ArrivedBangkokHong Kong
-4
Sep 5, 2026ArrivedHong KongLos Angeles
18
Sep 5, 2026ArrivedBangkokHong Kong
-39
Sep 4, 2026ArrivedHong KongLos Angeles
-10
Sep 4, 2026ArrivedBangkokHong Kong
-6
Sep 3, 2026ArrivedHong KongLos Angeles
-18
Sep 3, 2026ArrivedBangkokHong Kong
-3
Sep 2, 2026ArrivedHong KongLos Angeles
-58
Sep 2, 2026ArrivedBangkokHong Kong
-24
Sep 1, 2026ArrivedHong KongLos Angeles
29
Sep 1, 2026ArrivedBangkokHong Kong
-34
Aug 31, 2026ArrivedHong KongLos Angeles
-26
Aug 31, 2026ArrivedBangkokHong Kong
-21
Aug 30, 2026ArrivedHong KongLos Angeles
-12
Aug 30, 2026ArrivedBangkokHong Kong
-30
Aug 29, 2026ArrivedHong KongLos Angeles
-22
Aug 29, 2026ArrivedBangkokHong Kong
10
Aug 28, 2026ArrivedHong KongLos Angeles
11
Aug 28, 2026ArrivedBangkokHong Kong
-16
Aug 27, 2026ArrivedHong KongLos Angeles
10
Aug 27, 2026ArrivedBangkokHong Kong
-21
Aug 26, 2026ArrivedHong KongLos Angeles
5
Aug 26, 2026ArrivedBangkokHong Kong
-5
Aug 25, 2026ArrivedHong KongLos Angeles
-3
Aug 25, 2026ArrivedBangkokHong Kong
7
Aug 24, 2026ArrivedHong KongLos Angeles
-6
Aug 24, 2026ArrivedBangkokHong Kong
-10
Aug 23, 2026ArrivedHong KongLos Angeles
-10
Aug 22, 2026ArrivedHong KongLos Angeles
-9
Aug 22, 2026ArrivedBangkokHong Kong
-12
Aug 21, 2026ArrivedHong KongLos Angeles
-14

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