United Airlines
Is UA574 delayed?
Yes, UA574 left Boston 38 min late, at 09:38 on Nov 14. Arrival time not confirmed yet.
Usually on time: arrived within 15 min of schedule on 22 of the last 26 flights.
38 min late
This update may be out of date. Check with your airline.
Update time unavailable
Departure
Boston
BOS
Actual
Scheduled 09:00
Nov 14
Arrival
San Francisco
SFO
Scheduled
Nov 14
Times shown in airport local time
Service date: · Scheduled departure date (America/New_York)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Also sold as AC4474, NZ9019, NZ9020, NZ9245, AZ4429, LH9229, EK6179, VA8127, VA8520
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 41 min late
Boston → San Francisco
- 7 min early
San Francisco → Phoenix
- 44 min early
Boston → San Francisco
- 25 min early
Boston → San Francisco
- 18 min early
San Francisco → Phoenix
Is UA574 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
Boston (BOS) departures
- Left more than 15 min late
- 25 of 51
- Cancelled today
- 53
San Francisco (SFO) departures
- Left more than 15 min late
- 25 of 44
- Cancelled today
- 41
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Nov 13, 2026Cancelled | San Francisco | Phoenix | Not available | Not available |
| Nov 13, 2026Arrived | Boston | San Francisco | 41 | |
| Nov 12, 2026Arrived | San Francisco | Phoenix | -7 | |
| Nov 12, 2026Arrived | Boston | San Francisco | -44 | |
| Nov 11, 2026Arrived | Boston | San Francisco | -25 | |
| Nov 10, 2026Arrived | San Francisco | Phoenix | -18 | |
| Nov 10, 2026Arrived | Boston | San Francisco | -8 | |
| Nov 9, 2026Arrived | San Francisco | Phoenix | 38 | |
| Nov 9, 2026Arrived | Boston | San Francisco | -15 | |
| Nov 8, 2026Arrived | San Francisco | Phoenix | -3 | |
| Nov 8, 2026Arrived | Boston | San Francisco | -11 | |
| Nov 7, 2026Arrived | Boston | San Francisco | 46 | |
| Nov 6, 2026Arrived | San Francisco | Phoenix | -2 | |
| Nov 6, 2026Arrived | Boston | San Francisco | 211 | |
| Nov 5, 2026Arrived | San Francisco | Phoenix | -17 | |
| Nov 5, 2026Arrived | Boston | San Francisco | -40 | |
| Nov 4, 2026Arrived | Boston | San Francisco | -24 | |
| Oct 31, 2026Arrived | San Francisco | Las Vegas | -1 | |
| Oct 24, 2026Arrived | Chicago | Las Vegas | -15 | |
| Oct 23, 2026Arrived | Chicago | Las Vegas | -4 | |
| Oct 22, 2026Arrived | Chicago | Las Vegas | -8 | |
| Oct 21, 2026Arrived | Chicago | Las Vegas | -10 | |
| Oct 20, 2026Arrived | Chicago | Las Vegas | -3 | |
| Oct 19, 2026Arrived | Chicago | Las Vegas | -31 | |
| Oct 18, 2026Arrived | Chicago | Las Vegas | -16 | |
| Oct 17, 2026Arrived | Chicago | Las Vegas | -25 | |
| Oct 16, 2026Arrived | Chicago | Las Vegas | -4 |