Flight OddsAS337 ORD → SEA
Alaska Airlines · Chicago, IL to Seattle, WA · 192 flights observed, 2025-07-01 to 2026-06-30 · 1,721 mi
AS337 covers more than one route in the data window — the stats below are for ORD → SEA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
45%
Median delay
+21 min
90th percentile
+85 min
Cancellation rate
6%
How often is AS337 on time?
Across 192 flights on ORD → SEA from 2025-07-01 to 2026-06-30, AS337 arrived within 15 minutes of schedule 45% of the time. The median arrival delay was +21 min, and the worst 10% of flights arrived +85 min or later. 6% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 82 | 45% |
| 16-30 min | 26 | 14% |
| 31-60 min | 38 | 21% |
| 61-120 min | 23 | 13% |
| 2+ hrs | 12 | 7% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 37% | +35 min |
| 2025-08 | 30 | 33% | +30 min |
| 2025-09 | 29 | 45% | +31 min |
| 2025-10 | 28 | 57% | +26 min |
| 2025-11 | 16 | 50% | +64 min |
| 2025-12 | 25 | 48% | +36 min |
| 2026-01 | 6 | 50% | +23 min |
| 2026-06 | 17 | 53% | +35 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 28 | 43% |
| Tue | 26 | 50% |
| Wed | 25 | 52% |
| Thu | 25 | 40% |
| Fri | 27 | 44% |
| Sat | 25 | 52% |
| Sun | 25 | 36% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…