United Airlines
Is UA3917 delayed?
No — UA3917 landed in San Francisco 29 min early, at 18:11 on Oct 1 (as of Oct 2, 01:52 UTC). Over its last 9 recorded arrivals, 3 landed more than 15 min late.
29 min early
Official source · Updated
Departure
Denver
DEN
Scheduled
Not available
Arrival
San Francisco
SFO
Actual
Scheduled 18:40
Oct 1
Times shown in airport local time
Service date: · Scheduled arrival date; departure time unavailable (America/Los_Angeles)
Flight details
Departure · UTC
- Scheduled
- Not available
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Actual
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 29 min early
Denver → San Francisco
- 13 min early
Houston → Orlando
- 31 min early
Los Angeles → Denver
- 96 min late
Los Angeles → San Francisco
- 39 min late
Dallas-Fort Worth → Charlotte
Is UA3917 usually late?
Observation window: Sep 3, 2026 – Oct 3, 2026
Percentages and delay figures appear once 10 arrivals are recorded.
On time means arriving no more than 15 minutes after the scheduled time; late means more than 15 minutes after. Cancelled and diverted flights are counted apart from arrivals. Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.
At the airports today
Denver (DEN) departures
- Left more than 15 min late
- 230 of 774
- Cancelled today
- 1
San Francisco (SFO) departures
- Left more than 15 min late
- 246 of 470
- Cancelled today
- 2
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Oct 1, 2026Arrived | Denver | San Francisco | -29 | |
| Sep 28, 2026Arrived | Houston | Orlando | -13 | |
| Sep 26, 2026Arrived | Los Angeles | Denver | -31 | |
| Sep 24, 2026Arrived | Los Angeles | San Francisco | 96 | |
| Sep 21, 2026Arrived | Dallas-Fort Worth | Charlotte | 39 | |
| Sep 20, 2026Cancelled | Burlington | Chicago | Not available | Not available |
| Sep 18, 2026Arrived | Dulles | Houston | -15 | |
| Sep 16, 2026Arrived | Los Angeles | Santa Ana | 15 | |
| Sep 13, 2026Arrived | Dulles | Chicago | 38 | |
| Sep 7, 2026Arrived | Chicago | Indianapolis | -42 |
Email me if UA3917 runs late
We email you if your next UA3917 flight in the coming day is more than 15 minutes late, cancelled or diverted. Alerts last 30 days. No account needed.