United Airlines
UA821 Flight Status
According to Trip.com latest record on status for United Airlines flight UA821 from Bangkok to Los Angeles (BKK-LAX): Flights for Oct 2, 2026 are scheduled, with the next departure slated for 15:45 from BKK and an expected arrival at 20:10 at LAX .
Thu, Oct 1
Fri, Oct 2
Sat, Oct 3
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In Flight
Your flight has departed Bangkok and is expected to arrive in Los Angeles at 19:39.
18h 25m
HKG
2h 42m
Check-in Counter
G
Boarding Gate
E2
Arrival Gate
76A
Baggage
--
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Scheduled
Your flight will depart on time.
18h 25m
Check-in Counter
--
Boarding Gate
--
Arrival Gate
74
Baggage
--
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Scheduled
Your flight will depart on time.
18h 25m
Check-in Counter
--
Boarding Gate
--
Arrival Gate
--
Baggage
--
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UA821
Flight.News
An Extreme Heat Watch is in effect for Los Angeles from Friday morning through Thursday, October 08. Dangerously hot conditions are expected, with temperatures reaching up to 90 at the coast and 105 in the valleys across Los Angeles and Ventura Counties. Extreme heat significantly increases the risk of heat-related illnesses. Very hot temperatures will likely continue into the second week of October.
Track the Previous Flight Status: Scheduled
UA820
|
Los Angeles (LAX)
Bangkok (BKK)
Bangkok (BKK)
Scheduled: 09:35
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UA821 Aircraft Specifications
According to Trip.com real-time data, the UA821 flight from Bangkok to Los Angeles on 10/2/2026 is operated using the aircraft model Boeing 787-9. This aircraft has been in service for 11y, 1m. The aircraft has 257 seats.
Boeing 787-9
On-Time Departure
73
%
On-Time Arrival
100
%
Avg. Early
23 minutes
Aircraft Age
11y, 1m
Total Seats
257
Flight Distance
--
Economy
Business
Premium Economy
Cabin Amenities
Meal included
On-demand entertainment
Wi-Fi is available
USB port and power outlet
Seat Information
81 cm
Legroom
--
Seat width
100°
Reclining Angle
--
Seat layout example
Cabin Amenities
Meal included
On-demand entertainment
Wi-Fi is available
USB port and power outlet
Seat Information
198 cm
Legroom
52 cm
Seat width
180°
Reclining Angle
Fully reclinable
--
Seat layout example
Cabin Amenities
Meal included
On-demand entertainment
Wi-Fi is available
USB port and power outlet
Seat Information
89 cm
Legroom
44 cm
Seat width
110°
Reclining Angle
--
Seat layout example
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UA821 Flight History
Trip.com historical records show that the last UA821 flight departed on Thu, Oct 1 from BKK at approximately 16:04. This flight is expected to arrrive in LAX at 19:39.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Sun, Sep 27 | Bangkok (BKK) | Los Angeles (LAX) | 789 | 16:53 | 19:41 | Arrived |
| Mon, Sep 28 | Bangkok (BKK) | Los Angeles (LAX) | 789 | 16:09 | 19:56 | Arrived |
| Tue, Sep 29 | Bangkok (BKK) | Los Angeles (LAX) | 789 | 16:17 | 20:03 | Arrived |
| Wed, Sep 30 | Bangkok (BKK) | Los Angeles (LAX) | 789 | 16:00 | 19:33 | Arrived |
| Thu, Oct 1 | Bangkok (BKK) | Los Angeles (LAX) | 789 | 16:04 | 19:39 | In Flight |
| Fri, Oct 2 | Bangkok (BKK) | Los Angeles (LAX) | 789 | 15:45 | 20:10 | Scheduled |
| Sat, Oct 3 | Bangkok (BKK) | Los Angeles (LAX) | 789 | 15:45 | 20:10 | Scheduled |
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UA821 On-Time Performance
Based on the average performance of this flight over the last 30 trips, the on-time departure rate of UA821 is 73% (Late on average 26 minutes), and the on-time arrival rate is 100% (Early on average 23 minutes).
On-Time Departures
Punctuality
73
%
Late on average
26 minutes
Early
0
%
On time
73
%
30 mins late
20
%
60 mins late
7
%
90 mins late
0
%
Cancelled
0
%
On-Time Arrivals
Punctuality
100
%
Early on average
23 minutes
Early
87
%
On time
13
%
30 mins late
0
%
60 mins late
0
%
90 mins late
0
%
Cancelled
0
%
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Flight FAQs
-
What is the current status of flight ua821?
Flight ua821 has not departed yet and is currently on schedule. Scheduled departure 15:45, arrival 20:10 (updated Oct 2, 2026). -
Is flight ua821 on time today?
Flight ua821 has not departed yet and is currently on schedule. Scheduled departure is 15:45, with arrival at 20:10. Recheck gate and timing before you head to the airport. -
Has flight ua821 departed yet? What is the departure time?
Flight ua821 is scheduled to depart at 15:45. The latest actual or estimated departure time is 15:45, and the current status is Scheduled (updated Oct 2, 2026). -
When is flight ua821 scheduled to arrive?
Flight ua821 is scheduled to arrive at 20:10. The latest estimated or actual arrival time is 20:10. Status is Scheduled as of Oct 2, 2026. -
What route does flight ua821 fly?
Flight ua821 is operated by United Airlines from Bangkok (BKK) to Los Angeles (LAX). Typical flight time is about 18 hours 25 minutes; operating days may include Friday. -
How can I check real-time status for flight ua821?
Track flight ua821 on this Trip.com status page for live departure, arrival, gate and baggage updates. For push alerts on the go, open the same flight in the Trip.com App and turn on flight notifications. -
If flight ua821 is delayed or canceled, what should I do?
If ua821 is delayed or canceled, first confirm the latest status here (Scheduled, updated Oct 2, 2026). Contact United Airlines or your booking channel for rebooking or refund options, and check Trip.com Manage Booking if you booked on Trip.com. -
Has flight ua821 departed from Bangkok?
Flight ua821 has not departed from Bangkok (BKK) yet and is currently on schedule for 15:45.
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When You Land: Los Angeles Weather & Time Zone
Clear
|
19°C - 30°C
Weather forecast for your arrival day
-14 hour time difference
Time on arrival: Bangkok 10:10
|
Los Angeles 20:10
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