Flight OddsDL1655 SFO → BOS
Delta Air Lines · San Francisco, CA to Boston, MA · 178 flights observed, 2025-07-06 to 2026-06-27 · 2,704 mi
DL1655 covers more than one route in the data window — the stats below are for SFO → BOS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
69%
Median delay
+2 min
90th percentile
+52 min
Cancellation rate
1%
How often is DL1655 on time?
Across 178 flights on SFO → BOS from 2025-07-06 to 2026-06-27, DL1655 arrived within 15 minutes of schedule 69% of the time. The median arrival delay was +2 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 | 122 | 69% |
| 16-30 min | 22 | 13% |
| 31-60 min | 16 | 9% |
| 61-120 min | 10 | 6% |
| 2+ hrs | 6 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 23 | 78% | +10 min |
| 2025-08 | 16 | 69% | +9 min |
| 2025-09 | 17 | 65% | +22 min |
| 2025-10 | 23 | 74% | +37 min |
| 2025-11 | 19 | 63% | +7 min |
| 2025-12 | 17 | 88% | -11 min |
| 2026-04 | 16 | 88% | -1 min |
| 2026-05 | 25 | 56% | +27 min |
| 2026-06 | 20 | 50% | +12 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 31 | 65% |
| Tue | 25 | 80% |
| Wed | 25 | 64% |
| Thu | 30 | 63% |
| Fri | 28 | 68% |
| Sat | 8 | 88% |
| Sun | 29 | 72% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…