About 1 in 3 DL 1559 flights from Los Angeles arrived 15+ minutes late, diverted or cancelled over the past year (35%); 0.9% were cancelled. The typical flight landed 3 minutes late.
DL 1559: LAX → SFO
Scheduled to leave Los Angeles at 4:00 p.m. local time. Over the past year it arrived on time 65% of the time (347 flights), worse than other DL flights on the route at that hour (69%). Last seen in the data Aug 30, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 50 | 66% |
| Tuesday | 50 | 64% |
| Wednesday | 50 | 72% |
| Thursday | 50 | 56% |
| Friday | 50 | 66% |
| Saturday | 48 | 71% |
| Sunday | 49 | 61% |
Why it was late
All flights LAX → SFO · Connecting off DL 1559? Check the risk
DL 1559: SFO → LAX
Scheduled to leave San Francisco at 6:28 p.m. local time. Over the past year it arrived on time 60% of the time (197 flights), worse than other DL flights on the route at that hour (73%). Last seen in the data Aug 30, 2026.
Usually Delta Air Lines's last flight of the day from San Francisco to Los Angeles (56% of days). Delta Air Lines's last SFO–LAX flight was cancelled 0.8% of the time, against 1.7% for its earlier ones. If it's cancelled, the next Delta Air Lines flight is usually around 7:00 a.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 32 | 56% |
| Tuesday | 28 | 64% |
| Wednesday | 28 | 68% |
| Thursday | 32 | 56% |
| Friday | 32 | 66% |
| Saturday | 15 | — |
| Sunday | 30 | 50% |
Why it was late
All flights SFO → LAX · Connecting off DL 1559? Check the risk
Questions
How often is DL 1559 from LAX to SFO late?
Delta Air Lines 1559 from Los Angeles, CA to San Francisco, CA arrived 15 or more minutes late, was diverted or was cancelled on 35% of 347 scheduled flights between September 2025 and August 2026. 0.9% were cancelled.
How often is DL 1559 from SFO to LAX late?
Delta Air Lines 1559 from San Francisco, CA to Los Angeles, CA arrived 15 or more minutes late, was diverted or was cancelled on 40% of 197 scheduled flights between September 2025 and August 2026. 1.5% were cancelled.
Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check Delta Air Lines for today's flight. Method.