Flight OddsDL5820 BOS → DCA
Delta Air Lines · Boston, MA to Washington, DC · 24 flights observed, 2026-04-13 to 2026-06-27 · 399 mi
DL5820 covers more than one route in the data window — the stats below are for BOS → DCA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
71%
Median delay
-1 min
90th percentile
+43 min
Cancellation rate
0%
How often is DL5820 on time?
Across 24 flights on BOS → DCA from 2026-04-13 to 2026-06-27, DL5820 arrived within 15 minutes of schedule 71% of the time. The median arrival delay was -1 min, and the worst 10% of flights arrived +43 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 | 17 | 71% |
| 16-30 min | 3 | 13% |
| 31-60 min | 3 | 13% |
| 61-120 min | 1 | 4% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-04 | 16 | 69% | +7 min |
| 2026-05 | 5 | 100% | +1 min |
| 2026-06 | 3 | 33% | +11 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 100% |
| Tue | 4 | 75% |
| Wed | 4 | 75% |
| Thu | 3 | 100% |
| Fri | 3 | 33% |
| Sat | 3 | 33% |
| Sun | 3 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…