Flight OddsBOS → ORD American Airlines
American Airlines · Boston, MA to Chicago, IL · 3,113 flights, 2025-07-01 to 2026-06-30 · aggregated across 102 flight numbers
On-time arrival
74%
Median delay
-8 min
90th percentile
+80 min
Cancellation rate
3%
How on-time is American Airlines from BOS to ORD?
Across every American Airlines flight number on BOS → ORD (3,113 flights, 2025-07-01 to 2026-06-30), 74% arrived within 15 minutes of schedule. Median arrival delay -8 min; the worst 10% ran +80 min or later. 3% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 2,207 | 74% |
| 16-30 min | 186 | 6% |
| 31-60 min | 207 | 7% |
| 61-120 min | 202 | 7% |
| 2+ hrs | 185 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 249 | 73% | +14 min |
| 2025-08 | 262 | 72% | +11 min |
| 2025-09 | 262 | 71% | +12 min |
| 2025-10 | 266 | 64% | +24 min |
| 2025-11 | 234 | 75% | +13 min |
| 2025-12 | 234 | 68% | +19 min |
| 2026-01 | 190 | 74% | +13 min |
| 2026-02 | 210 | 85% | -5 min |
| 2026-03 | 223 | 73% | +19 min |
| 2026-04 | 271 | 76% | +11 min |
| 2026-05 | 298 | 79% | +7 min |
| 2026-06 | 288 | 78% | +17 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 426 | 73% |
| Tue | 437 | 77% |
| Wed | 418 | 77% |
| Thu | 425 | 72% |
| Fri | 436 | 73% |
| Sat | 402 | 74% |
| Sun | 443 | 72% |
AA flight numbers on BOS → ORD
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…