Is UA1791 delayed?
Each route and date is shown separately. Confirm that both airports match your booking.
Service date: · Scheduled departure date (America/Los_Angeles)
5 min early
This update may be out of date. Check with your airline.
Update time unavailable
Departure
San Francisco
SFO
Actual
Aug 23
Arrival
Dulles
IAD
Estimated
Aug 23
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Actual
- Not available
Service date: · Scheduled departure date (America/Los_Angeles)
45 min late
Updated
Departure
San Diego
SAN
Actual
Aug 23
Arrival
San Francisco
SFO
Actual
Aug 23
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Actual
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.
- 61 min late
SFO → IAD
- 75 min late
SAN → SFO
- 19 min early
SFO → IAD
- 45 min late
SAN → SFO
- 21 min late
SAN → SFO
Flight history and details
Aug 19, 2026 — Sep 18, 2026
- Observed arrivals
- 37
- Arrivals over 15 minutes late
- 17
- Observed cancellations
- 0
- Observed occurrences
- 53
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 | San Francisco | Dulles | 61 | |
| Sep 17, 2026Arrived | San Diego | San Francisco | 75 | |
| Sep 16, 2026Arrived | San Francisco | Dulles | -19 | |
| Sep 16, 2026Arrived | San Diego | San Francisco | 45 | |
| Sep 15, 2026Arrived | San Diego | San Francisco | 21 | |
| Sep 14, 2026Arrived | San Francisco | Dulles | 55 | |
| Sep 14, 2026Arrived | San Diego | San Francisco | -7 | |
| Sep 13, 2026Arrived | San Francisco | Dulles | -12 | |
| Sep 13, 2026Arrived | San Diego | San Francisco | -12 | |
| Sep 12, 2026Arrived | San Francisco | Dulles | -35 | |
| Sep 12, 2026Arrived | San Diego | San Francisco | 22 | |
| Sep 11, 2026Arrived | San Francisco | Dulles | 28 | |
| Sep 11, 2026Arrived | San Diego | San Francisco | 19 | |
| Sep 10, 2026Arrived | San Diego | San Francisco | 6 | |
| Sep 9, 2026Arrived | San Diego | San Francisco | 13 | |
| Sep 8, 2026Arrived | San Diego | San Francisco | 35 | |
| Sep 7, 2026Arrived | San Francisco | Dulles | -10 | |
| Sep 7, 2026Arrived | San Diego | San Francisco | 8 | |
| Sep 6, 2026Arrived | San Francisco | Dulles | -35 | |
| Sep 6, 2026Arrived | San Diego | San Francisco | 29 | |
| Sep 5, 2026Arrived | San Francisco | Dulles | -28 | |
| Sep 5, 2026Arrived | San Diego | San Francisco | -22 | |
| Sep 4, 2026Arrived | San Francisco | Dulles | 8 | |
| Sep 4, 2026Arrived | San Diego | San Francisco | -14 | |
| Sep 3, 2026Arrived | San Francisco | Dulles | -10 | |
| Sep 3, 2026Arrived | San Diego | San Francisco | 4 | |
| Sep 2, 2026Arrived | San Francisco | Dulles | 14 | |
| Sep 2, 2026Arrived | San Diego | San Francisco | 69 | |
| Sep 1, 2026Arrived | San Diego | San Francisco | 48 | |
| Aug 31, 2026Arrived | San Diego | San Francisco | 66 | |
| Aug 30, 2026Arrived | San Diego | San Francisco | 34 | |
| Aug 29, 2026Arrived | San Diego | San Francisco | -13 | |
| Aug 28, 2026Arrived | San Diego | San Francisco | 115 | |
| Aug 27, 2026Arrived | San Diego | San Francisco | 1 | |
| Aug 26, 2026Arrived | San Diego | San Francisco | -6 | |
| Aug 25, 2026Arrived | San Diego | San Francisco | 74 | |
| Aug 23, 2026Arrived | San Diego | San Francisco | 45 |