Flight OddsUA307 ORD → DCA
United Airlines · Chicago, IL to Washington, DC · 176 flights observed, 2025-09-25 to 2026-05-20 · 612 mi
UA307 covers more than one route in the data window — the stats below are for ORD → DCA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
80%
Median delay
-1 min
90th percentile
+49 min
Cancellation rate
3%
How often is UA307 on time?
Across 176 flights on ORD → DCA from 2025-09-25 to 2026-05-20, UA307 arrived within 15 minutes of schedule 80% of the time. The median arrival delay was -1 min, and the worst 10% of flights arrived +49 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 136 | 80% |
| 16-30 min | 11 | 6% |
| 31-60 min | 6 | 4% |
| 61-120 min | 12 | 7% |
| 2+ hrs | 5 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-09 | 5 | 100% | +5 min |
| 2025-10 | 21 | 86% | +8 min |
| 2025-12 | 29 | 79% | +11 min |
| 2026-01 | 25 | 88% | +4 min |
| 2026-02 | 24 | 71% | +9 min |
| 2026-03 | 26 | 77% | +15 min |
| 2026-04 | 23 | 65% | +7 min |
| 2026-05 | 17 | 94% | -2 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 27 | 78% |
| Tue | 27 | 89% |
| Wed | 29 | 83% |
| Thu | 28 | 89% |
| Fri | 29 | 69% |
| Sat | 4 | 100% |
| Sun | 26 | 69% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…