United Airlines
Is UA7939 delayed?
Service date: · Actual departure date; scheduled departure unavailable (Asia/Tokyo)
Arrived
26 min early
Official source · Updated
Departure
Tokyo
HND
Actual
Sep 6
Arrival
San Francisco
SFO
Actual
Scheduled 16:30
Sep 6
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Not available
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Actual
Operating flight: ANA108
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 11 min early
HND → SFO
- 24 min early
HND → SFO
- 54 min late
HND → SFO
- 22 min late
HND → SFO
- 8 min early
HND → SFO
Flight history and details
Aug 19, 2026 — Sep 18, 2026
- Observed arrivals
- 14
- Arrivals over 15 minutes late
- 2
- Observed cancellations
- 0
- Observed occurrences
- 14
Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 17, 2026Arrived | Tokyo | San Francisco | -11 | |
| Sep 16, 2026Arrived | Tokyo | San Francisco | -24 | |
| Sep 16, 2026Arrived | Tokyo | San Francisco | 54 | |
| Sep 14, 2026Arrived | Tokyo | San Francisco | 22 | |
| Sep 13, 2026Arrived | Tokyo | San Francisco | -8 | |
| Sep 12, 2026Arrived | Tokyo | San Francisco | -16 | |
| Sep 11, 2026Arrived | Tokyo | San Francisco | -18 | |
| Sep 10, 2026Arrived | Tokyo | San Francisco | 2 | |
| Sep 9, 2026Arrived | Tokyo | San Francisco | 5 | |
| Sep 8, 2026Arrived | Tokyo | San Francisco | 9 | |
| Sep 7, 2026Arrived | Tokyo | San Francisco | -3 | |
| Sep 6, 2026Arrived | Tokyo | San Francisco | -26 | |
| Sep 5, 2026Arrived | Tokyo | San Francisco | -39 | |
| Sep 4, 2026Arrived | Tokyo | San Francisco | -12 |