Flight OddsDL5638 MCI → BOS
Delta Air Lines · Kansas City, MO to Boston, MA · 99 flights observed, 2025-12-20 to 2026-04-12 · 1,256 mi
DL5638 covers more than one route in the data window — the stats below are for MCI → BOS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
84%
Median delay
-15 min
90th percentile
+32 min
Cancellation rate
4%
How often is DL5638 on time?
Across 99 flights on MCI → BOS from 2025-12-20 to 2026-04-12, DL5638 arrived within 15 minutes of schedule 84% of the time. The median arrival delay was -15 min, and the worst 10% of flights arrived +32 min or later. 4% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 80 | 84% |
| 16-30 min | 4 | 4% |
| 31-60 min | 2 | 2% |
| 61-120 min | 5 | 5% |
| 2+ hrs | 4 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 12 | 83% | -4 min |
| 2026-01 | 24 | 71% | +27 min |
| 2026-02 | 22 | 95% | -11 min |
| 2026-03 | 27 | 85% | -1 min |
| 2026-04 | 10 | 90% | -10 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 15 | 80% |
| Tue | 15 | 93% |
| Wed | 16 | 94% |
| Thu | 16 | 94% |
| Fri | 16 | 75% |
| Sat | 3 | 33% |
| Sun | 14 | 79% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…