UA1521 United Airlines - Flight Status

Which is the frequency of flight UA1521?
The flight UA1521 is scheduled to flight on daily basis.

Which is the distance of flight UA1521?
The distance between the two airports is 1634 miles.

Which is the flight time of flight UA1521?
The scheduled flight time gate to gate is: 04:33 hours.
The real flight time gate to gate on average is: 04:06 hours.

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 Houston: 2025-01-21 04:46:43
Current Time in San Francisco: 2025-01-21 02:46:43

The following airline serve the same route between Houston and San Francisco:
United Airlines - Flight Number: UA1057. (On Time performance: 88 - Average Delay: 6 minutes)

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