UA643 United Airlines - Flight Status
Below, you can find details about United Airlines flight UA643, which currently operates between the airports of Las Vegas - Las Vegas Harry Reid International Airport (Airport Code LAS) and San Francisco - San Francisco International Airport (Airport Code SFO).
This flight data pertains specifically to the flight's details for Thursday, January 08, 2026.
Table of contents:
Flight Status Codeshare Flights Additional Information Alternative Flights Punctuality and delays Last Past Flights UA643
Flight Status Codeshare Flights Additional Information Alternative Flights Punctuality and delays Last Past Flights UA643
UA643 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
UA643 United Airlines to San Francisco
Landed - On-time
Flight Status for Thursday January 08, 2026
This flight was also scheduled for Yesterday (January 07, 2026). See it here
This flight is also scheduled for Tomorrow (January 09, 2026). See it here
Landed - On-time
Flight Status for Thursday January 08, 2026
Airline information
United Airlines
Equipment: Boeing 737MAX 8 Passenger
Departure
Las Vegas (LAS)
January 08, 2026
Las Vegas Harry Reid International Airport
Departed at:
05:59 am
Terminal:
3
Gate:
D50
Scheduled Departure Time: 06:00 am
Arrival
San Francisco (SFO)
January 08, 2026
San Francisco International Airport
Arrived at:
07:34 am
Terminal:
3
Gate:
F11
Scheduled Arrival Time: 07:46 am
Baggage: 9
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.las-vegas-airport.com assumes no responsibility for loss or damage as a result of relying on information posted here. Please contact your airline to verify flight status.
Codeshare Flights
This flight is shared with other airlines, this means that these other flights are the same:
- AC5211 - Air Canada
- NH7315 - ANA All Nippon Airways
- NZ9237 - Air New Zealand
- VA8122 - Virgin Australia
Additional Information
Which is the frequency of flight UA643?
The flight UA643 is scheduled to flight on Tuesday, Wednesday, Thursday on a weekly basis.
Which is the distance of flight UA643?
The distance between the two airports is 414 miles.
Are the departure airport and arrival airport at the same Time Zone?
Yes, both airports are in the same timezone.
The flight UA643 is scheduled to flight on Tuesday, Wednesday, Thursday on a weekly basis.
Which is the distance of flight UA643?
The distance between the two airports is 414 miles.
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 Las Vegas and San Francisco:
Alaska Airlines
- Flight Number: AS570. (On Time performance: 65 - Average Delay: 40 minutes)
- Flight Number: AS613. (On Time performance: 80 - Average Delay: 13 minutes)
- Flight Number: AS634. (On Time performance: 66 - Average Delay: 19 minutes)
- Flight Number: AS718. (On Time performance: 75 - Average Delay: 17 minutes)
Frontier Airlines
- Flight Number: F93019. (On Time performance: 82 - Average Delay: 9 minutes)
- Flight Number: F93801. (On Time performance: 64 - Average Delay: 29 minutes)
- Flight Number: F94401. (On Time performance: 39 - Average Delay: 53 minutes)
United Airlines
- Flight Number: UA1267. (On Time performance: 57 - Average Delay: 38 minutes)
- Flight Number: UA1355. (On Time performance: 98 - Average Delay: 1 minutes)
- Flight Number: UA1799. (On Time performance: 69 - Average Delay: 21 minutes)
- Flight Number: UA2046. (On Time performance: 69 - Average Delay: 36 minutes)
- Flight Number: UA2047. (On Time performance: 67 - Average Delay: 19 minutes)
- Flight Number: UA2156. (On Time performance: 29 - Average Delay: 64 minutes)
- Flight Number: UA2356. (On Time performance: 55 - Average Delay: 17 minutes)
- Flight Number: UA2421. (On Time performance: 69 - Average Delay: 31 minutes)
- Flight Number: UA2423. (On Time performance: 63 - Average Delay: 15 minutes)
- Flight Number: UA2439. (On Time performance: 94 - Average Delay: 4 minutes)
- Flight Number: UA354. (On Time performance: 62 - Average Delay: 14 minutes)
- Flight Number: UA574. (On Time performance: 71 - Average Delay: 15 minutes)
Southwest Airlines
- Flight Number: WN2176. (On Time performance: 39 - Average Delay: 29 minutes)
- Flight Number: WN2914. (On Time performance: 8 - Average Delay: 49 minutes)
- Flight Number: WN3297. (On Time performance: 63 - Average Delay: 23 minutes)
- Flight Number: WN4205. (On Time performance: 25 - Average Delay: 48 minutes)
- Flight Number: WN966. (On Time performance: 32 - Average Delay: 42 minutes)
Alaska Airlines
- Flight Number: AS570. (On Time performance: 65 - Average Delay: 40 minutes)
- Flight Number: AS613. (On Time performance: 80 - Average Delay: 13 minutes)
- Flight Number: AS634. (On Time performance: 66 - Average Delay: 19 minutes)
- Flight Number: AS718. (On Time performance: 75 - Average Delay: 17 minutes)
Frontier Airlines
- Flight Number: F93019. (On Time performance: 82 - Average Delay: 9 minutes)
- Flight Number: F93801. (On Time performance: 64 - Average Delay: 29 minutes)
- Flight Number: F94401. (On Time performance: 39 - Average Delay: 53 minutes)
United Airlines
- Flight Number: UA1267. (On Time performance: 57 - Average Delay: 38 minutes)
- Flight Number: UA1355. (On Time performance: 98 - Average Delay: 1 minutes)
- Flight Number: UA1799. (On Time performance: 69 - Average Delay: 21 minutes)
- Flight Number: UA2046. (On Time performance: 69 - Average Delay: 36 minutes)
- Flight Number: UA2047. (On Time performance: 67 - Average Delay: 19 minutes)
- Flight Number: UA2156. (On Time performance: 29 - Average Delay: 64 minutes)
- Flight Number: UA2356. (On Time performance: 55 - Average Delay: 17 minutes)
- Flight Number: UA2421. (On Time performance: 69 - Average Delay: 31 minutes)
- Flight Number: UA2423. (On Time performance: 63 - Average Delay: 15 minutes)
- Flight Number: UA2439. (On Time performance: 94 - Average Delay: 4 minutes)
- Flight Number: UA354. (On Time performance: 62 - Average Delay: 14 minutes)
- Flight Number: UA574. (On Time performance: 71 - Average Delay: 15 minutes)
Southwest Airlines
- Flight Number: WN2176. (On Time performance: 39 - Average Delay: 29 minutes)
- Flight Number: WN2914. (On Time performance: 8 - Average Delay: 49 minutes)
- Flight Number: WN3297. (On Time performance: 63 - Average Delay: 23 minutes)
- Flight Number: WN4205. (On Time performance: 25 - Average Delay: 48 minutes)
- Flight Number: WN966. (On Time performance: 32 - Average Delay: 42 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 UA643
Date
Departure
Arrival
Duration
Aircraft
Status
Wednesday
07 January
07 January
05:50 am
Las Vegas (LAS)
Las Vegas (LAS)
07:21 am
San Francisco (SFO)
San Francisco (SFO)
01h 31min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Tuesday
06 January
06 January
06:10 am
Las Vegas (LAS)
Las Vegas (LAS)
07:41 am
San Francisco (SFO)
San Francisco (SFO)
01h 31min
Boeing 737MAX
Boeing 737MAX
Landed - On-time