Flight OddsUA2721 IAH → BOS
United Airlines · Houston, TX to Boston, MA · 31 flights observed, 2025-07-01 to 2025-07-31 · 1,597 mi
UA2721 covers more than one route in the data window — the stats below are for IAH → BOS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
68%
Median delay
+2 min
90th percentile
+135 min
Cancellation rate
0%
How often is UA2721 on time?
Across 31 flights on IAH → BOS from 2025-07-01 to 2025-07-31, UA2721 arrived within 15 minutes of schedule 68% of the time. The median arrival delay was +2 min, and the worst 10% of flights arrived +135 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 | 21 | 68% |
| 16-30 min | 1 | 3% |
| 31-60 min | 3 | 10% |
| 61-120 min | 1 | 3% |
| 2+ hrs | 5 | 16% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 68% | +40 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 75% |
| Tue | 5 | 40% |
| Wed | 5 | 80% |
| Thu | 5 | 60% |
| Fri | 4 | 50% |
| Sat | 4 | 75% |
| Sun | 4 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…