Flight OddsAA2303 ORD → BOS
American Airlines · Chicago, IL to Boston, MA · 40 flights observed, 2026-05-21 to 2026-06-30 · 867 mi
AA2303 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
49%
Median delay
+17 min
90th percentile
+117 min
Cancellation rate
3%
How often is AA2303 on time?
Across 40 flights on ORD → BOS from 2026-05-21 to 2026-06-30, AA2303 arrived within 15 minutes of schedule 49% of the time. The median arrival delay was +17 min, and the worst 10% of flights arrived +117 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 | 19 | 49% |
| 16-30 min | 4 | 10% |
| 31-60 min | 6 | 15% |
| 61-120 min | 6 | 15% |
| 2+ hrs | 4 | 10% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-05 | 11 | 64% | +17 min |
| 2026-06 | 28 | 43% | +56 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 6 | 50% |
| Tue | 6 | 50% |
| Wed | 5 | 60% |
| Thu | 5 | 40% |
| Fri | 6 | 83% |
| Sat | 6 | 33% |
| Sun | 5 | 20% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…