United Airlines
Is UA1278 delayed?
No delay reported yet. UA1278 is scheduled to leave San Francisco at 16:30 on Nov 14 and reach Chicago at 22:12 (as of Nov 14, 16:09 UTC).
Usually on time: arrived within 15 min of schedule on 16 of the last 19 flights.
No live update yet
Showing the published schedule until live times come in.
Update time unavailable
Departure
San Francisco
SFO
Scheduled
Nov 14
Arrival
Chicago
ORD
Scheduled
Nov 14
Times shown in airport local time
Service date: · Scheduled departure date (America/Los_Angeles)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Also sold as AC4674, AC4834, NZ9312, LX3183, EK6373, VA8098
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 13 min early
San Francisco → Chicago
- 13 min early
San Francisco → Chicago
- 7 min early
San Francisco → Chicago
- 37 min late
San Francisco → Chicago
- On schedule (2 min behind)
San Francisco → Chicago
Is UA1278 usually late?
Period: Oct 15, 2026 – Nov 14, 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. Compares scheduled and actual arrival times. Cancelled and diverted flights are left out. Some flights may be missing.
At the airports today
San Francisco (SFO) departures
- Left more than 15 min late
- 25 of 48
- Cancelled today
- 41
Chicago (ORD) departures
- Left more than 15 min late
- 69 of 167
- Cancelled today
- 135
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Nov 13, 2026Cancelled | San Francisco | Chicago | Not available | Not available |
| Nov 12, 2026Arrived | San Francisco | Chicago | -13 | |
| Nov 11, 2026Arrived | San Francisco | Chicago | -13 | |
| Nov 10, 2026Arrived | San Francisco | Chicago | -7 | |
| Nov 9, 2026Arrived | San Francisco | Chicago | 37 | |
| Nov 8, 2026Arrived | San Francisco | Chicago | 2 | |
| Nov 7, 2026Arrived | San Francisco | Chicago | -14 | |
| Nov 6, 2026Arrived | San Francisco | Chicago | 4 | |
| Nov 5, 2026Arrived | San Francisco | Chicago | -15 | |
| Nov 4, 2026Arrived | San Francisco | Chicago | 4 | |
| Nov 3, 2026Arrived | San Francisco | Chicago | 18 | |
| Oct 23, 2026Arrived | Chicago | Columbus | 52 | |
| Oct 22, 2026Arrived | Chicago | Columbus | -22 | |
| Oct 21, 2026Arrived | Chicago | Columbus | -25 | |
| Oct 20, 2026Arrived | Chicago | Columbus | -28 | |
| Oct 19, 2026Arrived | Chicago | Columbus | 12 | |
| Oct 18, 2026Arrived | Chicago | Columbus | -13 | |
| Oct 17, 2026Arrived | Chicago | Columbus | 5 | |
| Oct 16, 2026Arrived | Chicago | Columbus | 15 | |
| Oct 15, 2026Arrived | Chicago | Columbus | -18 |