Flight OddsBOS → SFO Delta Air Lines
Delta Air Lines · Boston, MA to San Francisco, CA · 898 flights, 2025-07-01 to 2026-06-30 · aggregated across 7 flight numbers
On-time arrival
73%
Median delay
-2 min
90th percentile
+50 min
Cancellation rate
1%
How on-time is Delta Air Lines from BOS to SFO?
Across every Delta Air Lines flight number on BOS → SFO (898 flights, 2025-07-01 to 2026-06-30), 73% arrived within 15 minutes of schedule. Median arrival delay -2 min; the worst 10% ran +50 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 641 | 73% |
| 16-30 min | 91 | 10% |
| 31-60 min | 81 | 9% |
| 61-120 min | 45 | 5% |
| 2+ hrs | 24 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 84 | 76% | -2 min |
| 2025-08 | 78 | 85% | +1 min |
| 2025-09 | 77 | 78% | +10 min |
| 2025-10 | 82 | 71% | +22 min |
| 2025-11 | 77 | 77% | -3 min |
| 2025-12 | 73 | 71% | +17 min |
| 2026-01 | 50 | 74% | +6 min |
| 2026-02 | 48 | 77% | -6 min |
| 2026-03 | 58 | 83% | -5 min |
| 2026-04 | 72 | 67% | +16 min |
| 2026-05 | 87 | 66% | +14 min |
| 2026-06 | 96 | 57% | +24 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 135 | 73% |
| Tue | 134 | 73% |
| Wed | 129 | 74% |
| Thu | 131 | 70% |
| Fri | 133 | 74% |
| Sat | 94 | 73% |
| Sun | 126 | 70% |
DL flight numbers on BOS → SFO
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…