Flight OddsUA1677 ORD → BOS
United Airlines · Chicago, IL to Boston, MA · 157 flights observed, 2025-07-01 to 2026-03-02 · 867 mi
UA1677 covers more than one route in the data window — the stats below are for ORD → BOS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
48%
Median delay
+21 min
90th percentile
+144 min
Cancellation rate
3%
How often is UA1677 on time?
Across 157 flights on ORD → BOS from 2025-07-01 to 2026-03-02, UA1677 arrived within 15 minutes of schedule 48% of the time. The median arrival delay was +21 min, and the worst 10% of flights arrived +144 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 | 73 | 48% |
| 16-30 min | 7 | 5% |
| 31-60 min | 27 | 18% |
| 61-120 min | 23 | 15% |
| 2+ hrs | 22 | 14% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 40% | +60 min |
| 2025-08 | 28 | 57% | +21 min |
| 2025-09 | 21 | 5% | +85 min |
| 2025-10 | 5 | 40% | +60 min |
| 2025-11 | 22 | 64% | +47 min |
| 2025-12 | 17 | 71% | +46 min |
| 2026-01 | 13 | 54% | +62 min |
| 2026-02 | 14 | 57% | +15 min |
| 2026-03 | 2 | 50% | +29 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 25 | 56% |
| Tue | 21 | 43% |
| Wed | 21 | 43% |
| Thu | 25 | 36% |
| Fri | 26 | 62% |
| Sat | 9 | 67% |
| Sun | 25 | 40% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…