Flight OddsUA3421 SBN → IAD
United Airlines · South Bend, IN to Washington, DC · 87 flights observed, 2025-08-20 to 2026-03-04 · 504 mi
UA3421 covers more than one route in the data window — the stats below are for SBN → IAD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
87%
Median delay
-14 min
90th percentile
+19 min
Cancellation rate
0%
How often is UA3421 on time?
Across 87 flights on SBN → IAD from 2025-08-20 to 2026-03-04, UA3421 arrived within 15 minutes of schedule 87% of the time. The median arrival delay was -14 min, and the worst 10% of flights arrived +19 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 | 76 | 87% |
| 16-30 min | 5 | 6% |
| 31-60 min | 2 | 2% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 4 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 12 | 100% | -12 min |
| 2025-09 | 30 | 97% | -8 min |
| 2025-10 | 25 | 88% | 0 min |
| 2026-02 | 16 | 56% | +26 min |
| 2026-03 | 4 | 100% | -10 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 12 | 92% |
| Tue | 12 | 92% |
| Wed | 13 | 92% |
| Thu | 12 | 83% |
| Fri | 13 | 77% |
| Sat | 13 | 100% |
| Sun | 12 | 75% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…