UA3979 United Airlines - Flight Status
Below, you can find details about United Airlines flight UA3979, which currently operates between the airports of Hong Kong - Hong Kong International Airport (Airport Code HKG) and Singapore - Singapore Changi Airport (Airport Code SIN).
This flight data pertains specifically to the flight's details for Wednesday, January 21, 2026.
Table of contents:
Flight Status Additional Information Alternative Flights Punctuality and delays Last Past Flights UA3979
Flight Status Additional Information Alternative Flights Punctuality and delays Last Past Flights UA3979
UA3979 On Time performance:
n/a
It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions. Flight Status
UA3979 United Airlines from Hong Kong
Flight Status for Wednesday January 21, 2026
Flight Status for Wednesday January 21, 2026
Airline information
United Airlines
Departure
Hong Kong (HKG)
January 21, 2026
Hong Kong International Airport
Estimated Departure Time:
08:30
Terminal:
-
Gate:
-
Scheduled Departure Time: 08:30
Arrival
Singapore (SIN)
January 21, 2026
Singapore Changi Airport
Estimated Arrival Time:
12:25
Terminal:
-
Gate:
-
Scheduled Arrival Time: 12:25
Disclaimer
The information displayed on this website is gathered from third-party providers with a wide reputation on the sector, which in turn obtain the information from the airlines. This data is provided only for informative purposes. www.singapore-airport.net assumes no responsibility for loss or damage as a result of relying on information posted here. Please contact your airline to verify flight status.
Additional Information
Which is the frequency of flight UA3979?
The flight UA3979 is currently not scheduled at Singapore Changi Airport (SIN).
Which is the distance of flight UA3979?
The distance between the two airports is 2567 kilometers.
Are the departure airport and arrival airport at the same Time Zone?
Yes, both airports are in the same timezone.
The flight UA3979 is currently not scheduled at Singapore Changi Airport (SIN).
Which is the distance of flight UA3979?
The distance between the two airports is 2567 kilometers.
Are the departure airport and arrival airport at the same Time Zone?
Yes, both airports are in the same timezone.
Alternative Flights
The following airlines serves the same route between Hong Kong and Singapore:
Cathay Pacific
- Flight Number: CX635. (On Time performance: 83 - Average Delay: 7 minutes)
- Flight Number: CX657. (On Time performance: 94 - Average Delay: 4 minutes)
- Flight Number: CX659. (On Time performance: 87 - Average Delay: 5 minutes)
- Flight Number: CX691. (On Time performance: 93 - Average Delay: 5 minutes)
- Flight Number: CX715. (On Time performance: 60 - Average Delay: 14 minutes)
- Flight Number: CX739. (On Time performance: 83 - Average Delay: 7 minutes)
- Flight Number: CX759. (On Time performance: 79 - Average Delay: 9 minutes)
- Flight Number: CX791. (On Time performance: 69 - Average Delay: 15 minutes)
Singapore Airlines
- Flight Number: SQ875. (On Time performance: 63 - Average Delay: 16 minutes)
- Flight Number: SQ883. (On Time performance: 83 - Average Delay: 7 minutes)
- Flight Number: SQ893. (On Time performance: 84 - Average Delay: 5 minutes)
- Flight Number: SQ895. (On Time performance: 86 - Average Delay: 9 minutes)
- Flight Number: SQ899. (On Time performance: 78 - Average Delay: 9 minutes)
Scoot
- Flight Number: TR939. (On Time performance: 33 - Average Delay: 34 minutes)
- Flight Number: TR973. (On Time performance: 23 - Average Delay: 44 minutes)
Cathay Pacific
- Flight Number: CX635. (On Time performance: 83 - Average Delay: 7 minutes)
- Flight Number: CX657. (On Time performance: 94 - Average Delay: 4 minutes)
- Flight Number: CX659. (On Time performance: 87 - Average Delay: 5 minutes)
- Flight Number: CX691. (On Time performance: 93 - Average Delay: 5 minutes)
- Flight Number: CX715. (On Time performance: 60 - Average Delay: 14 minutes)
- Flight Number: CX739. (On Time performance: 83 - Average Delay: 7 minutes)
- Flight Number: CX759. (On Time performance: 79 - Average Delay: 9 minutes)
- Flight Number: CX791. (On Time performance: 69 - Average Delay: 15 minutes)
Singapore Airlines
- Flight Number: SQ875. (On Time performance: 63 - Average Delay: 16 minutes)
- Flight Number: SQ883. (On Time performance: 83 - Average Delay: 7 minutes)
- Flight Number: SQ893. (On Time performance: 84 - Average Delay: 5 minutes)
- Flight Number: SQ895. (On Time performance: 86 - Average Delay: 9 minutes)
- Flight Number: SQ899. (On Time performance: 78 - Average Delay: 9 minutes)
Scoot
- Flight Number: TR939. (On Time performance: 33 - Average Delay: 34 minutes)
- Flight Number: TR973. (On Time performance: 23 - Average Delay: 44 minutes)
Punctuality and delays
It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions.
Delays analyzed by Week: It is not possible to calculate the On-Time Performance for this flight accurately by weekday due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Month: It is not possible to calculate the On-Time Performance for this flight accurately by month due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Week: It is not possible to calculate the On-Time Performance for this flight accurately by weekday due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Month: It is not possible to calculate the On-Time Performance for this flight accurately by month due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Last Past Flights UA3979
Date
Departure
Arrival
Duration
Aircraft
Status
Wednesday
21 January
21 January
08:30
Hong Kong (HKG)
Hong Kong (HKG)
12:25
Singapore (SIN)
Singapore (SIN)
03h 55min
Saturday
17 January
17 January
10:57
Guam (GUM)
Guam (GUM)
14:38
Singapore (SIN)
Singapore (SIN)
03h 41min
Boeing 787-8
Boeing 787-8
Landed - Delayed