UA439 United Airlines - Flight Status

Which is the frequency of flight UA439?
The flight UA439 is currently not scheduled at San Francisco Airport (SFO).

Which is the distance of flight UA439?
The distance between the two airports is 2135 miles.

Are the departure airport and arrival airport at the same Time Zone?
No, each airport is in a different timezone. The times shown above, are presented in the local time of each respective airport.
Current Time in San Francisco: 2026-02-08 17:26:33
Current Time in Atlanta: 2026-02-08 20:26:33

The following airlines serves the same route between San Francisco and Atlanta:

Delta Air Lines
- Flight Number: DL1643. (On Time performance: 80 - Average Delay: 83 minutes)
- Flight Number: DL570. (On Time performance: 91 - Average Delay: 14 minutes)
- Flight Number: DL635. (On Time performance: 82 - Average Delay: 13 minutes)
- Flight Number: DL640. (On Time performance: 96 - Average Delay: 3 minutes)
- Flight Number: DL715. (On Time performance: 91 - Average Delay: 3 minutes)
- Flight Number: DL785. (On Time performance: 87 - Average Delay: 7 minutes)

United Airlines
- Flight Number: UA702. (On Time performance: 91 - Average Delay: 3 minutes)

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 Weekday: We have gathered available data from last six months, spanning from January 10, 2026 to January 31, 2026. Next, you can observe the results broken down by day of the week: number of flights analyzed, on-time performance per day, and average delay per day.

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