Flight OddsDL1655 BOS → SFO
Delta Air Lines · Boston, MA to San Francisco, CA · 336 flights observed, 2025-07-01 to 2026-06-30 · 2,704 mi
DL1655 covers more than one route in the data window — the stats below are for BOS → SFO, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
69%
Median delay
0 min
90th percentile
+52 min
Cancellation rate
1%
How often is DL1655 on time?
Across 336 flights on BOS → SFO from 2025-07-01 to 2026-06-30, DL1655 arrived within 15 minutes of schedule 69% of the time. The median arrival delay was 0 min, and the worst 10% of flights arrived +52 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 227 | 69% |
| 16-30 min | 43 | 13% |
| 31-60 min | 33 | 10% |
| 61-120 min | 19 | 6% |
| 2+ hrs | 8 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 70% | +3 min |
| 2025-08 | 31 | 90% | -15 min |
| 2025-09 | 29 | 69% | +10 min |
| 2025-10 | 25 | 68% | +44 min |
| 2025-11 | 22 | 82% | -6 min |
| 2025-12 | 19 | 89% | -3 min |
| 2026-01 | 25 | 84% | 0 min |
| 2026-02 | 27 | 70% | -2 min |
| 2026-03 | 31 | 77% | -4 min |
| 2026-04 | 30 | 50% | +27 min |
| 2026-05 | 31 | 45% | +30 min |
| 2026-06 | 30 | 43% | +27 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 47 | 64% |
| Tue | 49 | 71% |
| Wed | 47 | 77% |
| Thu | 47 | 57% |
| Fri | 47 | 72% |
| Sat | 48 | 75% |
| Sun | 45 | 64% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…