UA644 United Airlines - Flight Status

Which is the frequency of flight UA644?
The flight UA644 is scheduled to flight on daily basis.

Which is the distance of flight UA644?
The distance between the two airports is 2249 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: 2025-06-02 09:01:36
Current Time in Pittsburgh: 2025-06-02 12:01:36

The following airline serve the same route between San Francisco and Pittsburgh:
United Airlines - Flight Number: UA777.

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: We have gathered available data from last twelve closed months, spanning from August 19, 2024 to December 02, 2024. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.

Note: We have excluded some months from the graph, since the quantity and quality of the data is not representative enough.