DL3963 Delta Air Lines - Flight Status

Which is the frequency of flight DL3963?
The flight DL3963 is scheduled to flight on daily basis.

Which is the distance of flight DL3963?
The distance between the two airports is 583 miles.

Which is the flight time of flight DL3963?
The scheduled flight time gate to gate is: 02:05 hours.
The real flight time gate to gate on average is: 01:49 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 San Jose: 2026-09-20 10:49:48
Current Time in Salt Lake City: 2026-09-20 11:49:48

The following airlines serves the same route between San Jose and Salt Lake City:

Delta Air Lines
- Flight Number: DL1254. (On Time performance: 95 - Average Delay: 3 minutes)
- Flight Number: DL1260. (On Time performance: 90 - Average Delay: 6 minutes)
- Flight Number: DL1314. (On Time performance: 95 - Average Delay: 5 minutes)
- Flight Number: DL3937. (On Time performance: 85 - Average Delay: 14 minutes)
- Flight Number: DL4026. (On Time performance: 95 - Average Delay: 7 minutes)

Southwest Airlines
- Flight Number: WN3496. (On Time performance: 72 - Average Delay: 20 minutes)
- Flight Number: WN3631. (On Time performance: 100 - Average Delay: 0 minutes)

We have gathered data from recent months and present below an analysis of how timely the flights have been.

Delays analyzed by Weekday: We have gathered available data from last six months, spanning from August 03, 2026 to September 09, 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: We have gathered available data from last twelve closed months, spanning from August 03, 2026 to August 31, 2026. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.