LY4578 Flight Status El Al: Boston to San Francisco (ELY4578)
BOS Boston
- Scheduled
- 07:40
- Actual
- 07:52
Terminal: A | Gate: A13
Departure: Sun, Nov 8, 2026 · local time EST
SFO San Francisco
- Scheduled
- 11:20
- Actual
- 10:57
- Delay
Terminal: 1 | Gate: C5
Arrival: Sun, Nov 8, 2026 · local time PST
Landed 18h 13m ago 100%
BOS 07:52 SFO 10:57
4,341 km (2,697 mi) flown
Estimated position based on departure and arrival times, not live tracking. Times are local at each airport.
Distance: 4341 km / 2697 miles · Scheduled Duration: 06:40 · Actual Duration: 06:05 · Aircraft:
LY 4578 Flight Status & Schedule El Al Boston to San Francisco
| Date | From | To | Departure | Arrival | Status | Details |
|---|---|---|---|---|---|---|
| Nov 08 | BOS | SFO | 07:52 | 10:57 | Landed | Track > |
| Nov 05 | BOS | SFO | 08:01 | 11:12 | Landed | Track > |
| Nov 03 | BOS | SFO | 07:57 | 11:15 | Landed | Track > |
| Nov 02 | BOS | SFO | 08:04 | 11:01 | Landed | Track > |
| Nov 01 | BOS | SFO | 08:01 | 11:12 | Landed | Track > |
El Al flight LY 4578 links Boston and San Francisco, 4,341 km (2,697 mi) apart, and flies three times a week: Tuesday, Thursday and Sunday. The timetable allows 6 h 40 min, but the flight usually takes about 6 h 10 min, so it often makes up time. Yesterday it left on time and landed at 10:57, 23 minutes early.
About LY 4578
- Distance
- 4,341 km (2,697 mi)
- Typical flight time
- 6 h 10 min
- Flies
- Tue, Thu, Sun
- On time
- 5 of the last 5
- Usually departs from
- Terminal A
LY 4578 FAQ
- How long is the LY4578 flight?
- The timetable allows 6 h 40 min. Boston to San Francisco is 4,341 km (2,697 mi).
- How often is LY4578 late?
- None of the last 5 flights arrived 15 or more minutes late.
- Which days does LY4578 fly?
- Three times a week: Tuesday, Thursday and Sunday, based on the schedule of the last 7 days.
- Which terminal does LY4578 use?
- It usually leaves from Terminal A at Boston Logan International Airport (BOS) and arrives at Terminal 1 at San Francisco International Airport (SFO). Check the flight card above for today's terminal and gate.
- What other flight numbers does LY4578 have?
- Also listed as ELY4578 (El Al's ICAO code) and LY 4578.
LY4578 and Boston BOS to San Francisco SFO Flights
Flight LY4578 is a code-share El Al flight of the Delta Air Lines operated DL977.
Other flights departing from Boston BOS: DL977, CM312, YX5628
Other flights arriving at San Francisco SFO: DL977, UA1960, OO5479
All flights connecting Boston BOS to San Francisco SFO.