UA639 United Airlines - Flight Status
Below, you can find details about United Airlines flight UA639, which currently operates between the airports of Reno - Reno-Tahoe International Airport (Airport Code RNO) and San Francisco - San Francisco International Airport (Airport Code SFO).
This flight data pertains specifically to the flight's details for Tuesday, August 25, 2026.
Table of contents:
Flight Status Codeshare Flights Additional Information Alternative Flights Punctuality and delays Last Past Flights UA639
Flight Status Codeshare Flights Additional Information Alternative Flights Punctuality and delays Last Past Flights UA639
UA639 On Time performance:
33
We have calculated the percentage of flights that arrived within 15 minutes of their scheduled time, or earlier, based on real flight data from the last 3 months. More about punctuality and delays Flight Status
UA639 United Airlines from Reno
Scheduled - On-time
Flight Status for Tuesday August 25, 2026
This flight was also scheduled for Yesterday (August 23, 2026). See it here
Scheduled - On-time
Flight Status for Tuesday August 25, 2026
Airline information
United Airlines
Equipment: Boeing 737-800 (Scimitar Winglets) Passenger
Departure
Reno (RNO)
August 25, 2026
Reno-Tahoe International Airport
Estimated Departure Time:
06:51 pm
Terminal:
-
Gate:
-
Scheduled Departure Time: 06:51 pm
Arrival
San Francisco (SFO)
August 25, 2026
San Francisco International Airport
Estimated Arrival Time:
08:08 pm
Terminal:
3
Gate:
F14
Scheduled Arrival Time: 08:08 pm
Baggage: 8
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.airport-sfo.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:
- AC4052 - Air Canada
- AV2105 - Avianca
- CM1436 - Copa Airlines
- LH8901 - Lufthansa
- OZ6346 - Asiana Airlines
Additional Information
Which is the frequency of flight UA639?
The flight UA639 is scheduled to flight on Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday on a weekly basis.
Which is the distance of flight UA639?
The distance between the two airports is 192 miles.
Which is the flight time of flight UA639?
The scheduled flight time gate to gate is: 01:17 hours.
The real flight time gate to gate on average is: 01:20 hours.
Are the departure airport and arrival airport at the same Time Zone?
Yes, both airports are in the same timezone.
The flight UA639 is scheduled to flight on Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday on a weekly basis.
Which is the distance of flight UA639?
The distance between the two airports is 192 miles.
Which is the flight time of flight UA639?
The scheduled flight time gate to gate is: 01:17 hours.
The real flight time gate to gate on average is: 01:20 hours.
Are the departure airport and arrival airport at the same Time Zone?
Yes, both airports are in the same timezone.
Alternative Flights
The following airline serve the same route between Reno and San Francisco:
United Airlines - Flight Number: UA1921. (On Time performance: 20 - Average Delay: 53 minutes)
United Airlines - Flight Number: UA1921. (On Time performance: 20 - Average Delay: 53 minutes)
Punctuality and delays
We have gathered data from recent months and present below an analysis of how timely the flights have been.
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
In terms of On-Time Performance, by analyzing the flight data from the last three months, spanning from August 11, 2026 to August 16, 2026, we have obtained these figures.
Total number of flights: 6
On Time: 2 ( 33 % )
Moderate Delay: 1 ( 17 % )
Significant Delay: 1 ( 17 % )
Major Delay: 2 ( 33 % )
Canceled: 0 ( 0 % )
Diverted: 0 ( 0 % )
Average Delay: 55 minutes.
Total number of flights: 6
On Time: 2 ( 33 % )
Moderate Delay: 1 ( 17 % )
Significant Delay: 1 ( 17 % )
Major Delay: 2 ( 33 % )
Canceled: 0 ( 0 % )
Diverted: 0 ( 0 % )
Average Delay: 55 minutes.
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 UA639
Date
Departure
Arrival
Duration
Aircraft
Status
Sunday
23 August
23 August
07:55 pm
Reno (RNO)
Reno (RNO)
09:02 pm
San Francisco (SFO)
San Francisco (SFO)
01h 07min
Airbus A320
Airbus A320
Landed - Delayed
Saturday
22 August
22 August
06:41 pm
Reno (RNO)
Reno (RNO)
08:29 pm
San Francisco (SFO)
San Francisco (SFO)
01h 48min
Airbus A320
Airbus A320
Landed - Delayed
Friday
21 August
21 August
08:02 pm
Reno (RNO)
Reno (RNO)
09:17 pm
San Francisco (SFO)
San Francisco (SFO)
01h 15min
Airbus A320
Airbus A320
Landed - Delayed
Thursday
20 August
20 August
07:22 pm
Reno (RNO)
Reno (RNO)
08:34 pm
San Francisco (SFO)
San Francisco (SFO)
01h 12min
Airbus A319
Airbus A319
Landed - Delayed
Wednesday
19 August
19 August
06:56 pm
Reno (RNO)
Reno (RNO)
08:45 pm
San Francisco (SFO)
San Francisco (SFO)
01h 49min
Airbus A320
Airbus A320
Landed - Delayed
Tuesday
18 August
18 August
07:05 pm
Reno (RNO)
Reno (RNO)
08:32 pm
San Francisco (SFO)
San Francisco (SFO)
01h 27min
Boeing 737-800
Boeing 737-800
Landed - Delayed
Sunday
16 August
16 August
07:03 pm
Reno (RNO)
Reno (RNO)
08:22 pm
San Francisco (SFO)
San Francisco (SFO)
01h 19min
Airbus A320
Airbus A320
Landed - On-time
Saturday
15 August
15 August
07:22 pm
Reno (RNO)
Reno (RNO)
08:36 pm
San Francisco (SFO)
San Francisco (SFO)
01h 14min
Airbus A320
Airbus A320
Landed - Delayed
Friday
14 August
14 August
09:24 pm
Reno (RNO)
Reno (RNO)
10:45 pm
San Francisco (SFO)
San Francisco (SFO)
01h 21min
Airbus A320
Airbus A320
Landed - Delayed
Thursday
13 August
13 August
08:29 pm
Reno (RNO)
Reno (RNO)
09:42 pm
San Francisco (SFO)
San Francisco (SFO)
01h 13min
Airbus A320
Airbus A320
Landed - Delayed