El Al Israel Airlines
Is LY4578 delayed?
Service date: · Scheduled arrival date; departure time unavailable (America/Los_Angeles)
Arrived
18 min late
Official source · Updated
Departure
Boston
BOS
Scheduled
Not available
Arrival
San Francisco
SFO
Actual
Scheduled 20:51
Sep 3
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Not available
- Estimated
- Not available
- Actual
- Not available
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.
- 37 min late
BOS → SFO
- 8 min early
BOS → SFO
- 9 min early
BOS → SFO
- 16 min late
BOS → SFO
- 4 min early
BOS → SFO
Flight history and details
Aug 17, 2026 — Sep 16, 2026
- Observed arrivals
- 6
- Arrivals over 15 minutes late
- 3
- Observed cancellations
- 0
- Observed occurrences
- 6
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 14, 2026Arrived | Boston | San Francisco | 37 | |
| Sep 10, 2026Arrived | Boston | San Francisco | -8 | |
| Sep 9, 2026Arrived | Boston | San Francisco | -9 | |
| Sep 7, 2026Arrived | Boston | San Francisco | 16 | |
| Sep 6, 2026Arrived | Boston | San Francisco | -4 | |
| Sep 3, 2026Arrived | Boston | San Francisco | 18 |