Flight OddsUA636 ORD → BTV
United Airlines · Chicago, IL to Burlington, VT · 297 flights observed, 2025-08-19 to 2026-06-30 · 763 mi
UA636 covers more than one route in the data window — the stats below are for ORD → BTV, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
64%
Median delay
+5 min
90th percentile
+65 min
Cancellation rate
1%
How often is UA636 on time?
Across 297 flights on ORD → BTV from 2025-08-19 to 2026-06-30, UA636 arrived within 15 minutes of schedule 64% of the time. The median arrival delay was +5 min, and the worst 10% of flights arrived +65 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 189 | 64% |
| 16-30 min | 42 | 14% |
| 31-60 min | 32 | 11% |
| 61-120 min | 16 | 5% |
| 2+ hrs | 15 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 13 | 92% | -7 min |
| 2025-09 | 30 | 73% | +10 min |
| 2025-10 | 31 | 68% | +12 min |
| 2025-11 | 28 | 71% | +23 min |
| 2025-12 | 15 | 80% | +7 min |
| 2026-01 | 30 | 57% | +19 min |
| 2026-02 | 28 | 54% | +13 min |
| 2026-03 | 30 | 57% | +31 min |
| 2026-04 | 30 | 60% | +23 min |
| 2026-05 | 29 | 52% | +15 min |
| 2026-06 | 30 | 67% | +36 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 43 | 56% |
| Tue | 43 | 72% |
| Wed | 42 | 62% |
| Thu | 42 | 50% |
| Fri | 42 | 74% |
| Sat | 40 | 68% |
| Sun | 42 | 69% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…