Is UA2478 delayed?
Yes — UA2478 landed in San Francisco 28 min late, at 18:02 on Sep 30 (as of Oct 1, 01:45 UTC).
Usually on time: arrived within 15 min of schedule on 35 of the last 49 flights.
Each route and date is shown separately. Confirm that both airports match your booking.
28 min late
Official source · Updated
Departure
Seattle
SEA
Scheduled
Not available
Arrival
San Francisco
SFO
Actual
Scheduled 17:34
Sep 30
Times shown in airport local time
Service date: · Scheduled arrival date; departure time unavailable (America/Los_Angeles)
Market settled: Delayed.
Flight details
Departure · UTC
- Scheduled
- Not available
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Actual
Market prices express trading expectations about a contract’s stated threshold. They do not confirm airline status. The linked market shows its terms and activity.
18 min early
Official source · Updated
Departure
San Francisco
SFO
Actual
Scheduled 19:24
Sep 30
Arrival
Ontario
ONT
Actual
Scheduled 20:31
Sep 30
Times shown in airport local time
Service date: · Scheduled departure date (America/Los_Angeles)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
Market prices express trading expectations about a contract’s stated threshold. They do not confirm airline status. The linked market shows its terms and activity.
Also sold as NZ9420, CM1446, LX3302, VA8294
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 18 min early
San Francisco → Ontario
- 28 min late
Seattle → San Francisco
- 26 min early
San Francisco → Ontario
- 25 min early
Seattle → San Francisco
- 25 min late
San Francisco → Ontario
Is UA2478 usually late?
Observation window: Sep 1, 2026 – Oct 1, 2026
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
Seattle (SEA) departures
- Left more than 15 min late
- 1 of 7
- Cancelled today
- 0
San Francisco (SFO) departures
- Left more than 15 min late
- 7 of 16
- Cancelled today
- 0
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 30, 2026Arrived | San Francisco | Ontario | -18 | |
| Sep 30, 2026Arrived | Seattle | San Francisco | 28 | |
| Sep 29, 2026Arrived | San Francisco | Ontario | -26 | |
| Sep 29, 2026Arrived | Seattle | San Francisco | -25 | |
| Sep 28, 2026Arrived | San Francisco | Ontario | 25 | |
| Sep 28, 2026Arrived | Seattle | San Francisco | 63 | |
| Sep 27, 2026Arrived | San Francisco | Ontario | 0 | |
| Sep 27, 2026Arrived | Seattle | San Francisco | -18 | |
| Sep 26, 2026Arrived | Seattle | San Francisco | -18 | |
| Sep 25, 2026Arrived | San Francisco | Ontario | 36 | |
| Sep 25, 2026Arrived | Seattle | San Francisco | 63 | |
| Sep 24, 2026Arrived | Seattle | San Francisco | 72 | |
| Sep 23, 2026Arrived | San Francisco | Ontario | -19 | |
| Sep 23, 2026Arrived | Seattle | San Francisco | -27 | |
| Sep 22, 2026Arrived | San Francisco | Ontario | -23 | |
| Sep 22, 2026Arrived | Seattle | San Francisco | -29 | |
| Sep 21, 2026Arrived | Seattle | San Francisco | 44 | |
| Sep 20, 2026Arrived | Seattle | San Francisco | 69 | |
| Sep 19, 2026Arrived | San Francisco | Ontario | -8 | |
| Sep 19, 2026Arrived | Seattle | San Francisco | -24 | |
| Sep 18, 2026Arrived | Seattle | San Francisco | 26 | |
| Sep 17, 2026Arrived | Seattle | San Francisco | 110 | |
| Sep 16, 2026Arrived | Seattle | San Francisco | 22 | |
| Sep 15, 2026Arrived | San Francisco | Ontario | -12 | |
| Sep 15, 2026Arrived | Seattle | San Francisco | -12 | |
| Sep 14, 2026Arrived | San Francisco | Ontario | -17 | |
| Sep 14, 2026Arrived | Seattle | San Francisco | -3 | |
| Sep 13, 2026Arrived | San Francisco | Ontario | -12 | |
| Sep 13, 2026Arrived | Seattle | San Francisco | -19 | |
| Sep 12, 2026Arrived | San Francisco | Ontario | 7 | |
| Sep 12, 2026Arrived | Seattle | San Francisco | -7 | |
| Sep 11, 2026Arrived | San Francisco | Ontario | 7 | |
| Sep 11, 2026Arrived | Seattle | San Francisco | -29 | |
| Sep 10, 2026Arrived | San Francisco | Ontario | -13 | |
| Sep 10, 2026Arrived | Seattle | San Francisco | 11 | |
| Sep 9, 2026Arrived | San Francisco | Ontario | -15 | |
| Sep 9, 2026Arrived | Seattle | San Francisco | -16 | |
| Sep 8, 2026Arrived | San Francisco | Ontario | -10 | |
| Sep 8, 2026Arrived | Seattle | San Francisco | -18 | |
| Sep 7, 2026Arrived | San Francisco | Ontario | -16 | |
| Sep 7, 2026Arrived | Seattle | San Francisco | -24 | |
| Sep 6, 2026Arrived | San Francisco | Ontario | -20 | |
| Sep 6, 2026Arrived | Seattle | San Francisco | -30 | |
| Sep 5, 2026Arrived | San Francisco | Ontario | -24 | |
| Sep 5, 2026Arrived | Seattle | San Francisco | -23 | |
| Sep 4, 2026Arrived | Seattle | San Francisco | 25 | |
| Sep 3, 2026Arrived | Seattle | San Francisco | 64 | |
| Sep 2, 2026Arrived | Seattle | San Francisco | -14 | |
| Sep 1, 2026Arrived | Seattle | San Francisco | 57 |
Email me if UA2478 runs late
We email you if your next UA2478 flight in the coming day is more than 15 minutes late, cancelled or diverted. Alerts last 30 days. No account needed.