Flight OddsDL3740 BOI → SEA
Delta Air Lines · Boise, ID to Seattle, WA · 345 flights observed, 2025-07-01 to 2026-06-30 · 399 mi
DL3740 covers more than one route in the data window — the stats below are for BOI → SEA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
84%
Median delay
-13 min
90th percentile
+49 min
Cancellation rate
0%
How often is DL3740 on time?
Across 345 flights on BOI → SEA from 2025-07-01 to 2026-06-30, DL3740 arrived within 15 minutes of schedule 84% of the time. The median arrival delay was -13 min, and the worst 10% of flights arrived +49 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 289 | 84% |
| 16-30 min | 8 | 2% |
| 31-60 min | 24 | 7% |
| 61-120 min | 14 | 4% |
| 2+ hrs | 10 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 81% | +5 min |
| 2025-08 | 30 | 93% | -3 min |
| 2025-09 | 30 | 83% | -6 min |
| 2025-10 | 31 | 77% | -1 min |
| 2025-11 | 30 | 87% | -2 min |
| 2025-12 | 19 | 74% | +9 min |
| 2026-01 | 24 | 63% | +11 min |
| 2026-02 | 28 | 96% | -11 min |
| 2026-03 | 31 | 84% | +8 min |
| 2026-04 | 30 | 83% | -2 min |
| 2026-05 | 31 | 87% | -3 min |
| 2026-06 | 30 | 90% | +4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 50 | 90% |
| Tue | 51 | 90% |
| Wed | 50 | 82% |
| Thu | 50 | 76% |
| Fri | 50 | 82% |
| Sat | 47 | 83% |
| Sun | 47 | 83% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…