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Any day
Thursday, October 8 · our forecast odds · issued Tue 3:00 AM ET · connections flying that day

Thu, Oct 8: United via O'Hare, leaving 05:30, is the safest bet: 84% chance of reaching Seattle on time.

Nonstops that day

All 2 nonstops →
AS 450 Alaska Flight history → CMH 18:07 SEA 20:15 19% 5% 0.6% 68%
AS 283 Alaska Flight history → CMH 07:00 SEA 09:07 22% 3% 0.6% 81%

Best connections that day, one ticket

Ranked by chance you reach Seattle on time, from each leg’s forecast for the day. Total trip = scheduled departure to arrival (Seattle is 3 h behind Columbus). Layovers up to 4 hours. Pick a connection for its 12-month details.

DeltaDetails → CMH 06:00 → ATL 07:35DL 2469 3h 43m Atlanta ATL 11:18 → SEA 13:29DL 629 10h 29m 99% 89%
DeltaDetails → CMH 10:53 → MSP 11:55DL 2772 2h 56m Minneapolis MSP 14:51 → SEA 16:39DL 877 8h 46m 98% 87%
DeltaDetails → CMH 08:15 → DTW 09:22DL 5812 · flown by Republic 3h 35m Detroit DTW 12:57 → SEA 14:49DL 728 9h 34m 100% 86%
DeltaDetails → CMH 07:03 → JFK 09:00DL 5656 · flown by Republic 2h 59m New York JFK 11:59 → SEA 15:01DL 1719 10h 58m 99% 86%
DeltaDetails → CMH 07:05 → ATL 08:42DL 2909 1h 08m Atlanta ATL 09:50 → SEA 12:13DL 774 8h 08m 97% 86%
UnitedDetails → CMH 05:30 → ORD 06:09UA 3524 · flown by Republic 2h 36m Chicago ORD 08:45 → SEA 11:38UA 2099 9h 08m 99% 86%
UnitedDetails → CMH 10:26 → ORD 10:54UA 622 2h 36m Chicago ORD 13:30 → SEA 16:09UA 1660 8h 43m 100% 84%
DeltaDetails → CMH 11:00 → ATL 12:36DL 1479 1h 12m Atlanta ATL 13:48 → SEA 15:53DL 481 7h 53m 98% 84%
How these are worked out. Each flight’s odds are our forecast for that day; flights of airlines we don’t forecast yet use their 12-month record and are marked. Makes the connection: the first flight’s 12-month lateness curve, scaled so its chance of arriving 15+ min late matches the day’s forecast, at the layover minus the 45-minute minimum (90 on separate tickets). Arrives on time: first flight not cancelled × connection made × second flight not cancelled × second flight within 15 minutes, each from the day’s forecast.

About this data: forecast odds from our model for Thu, Oct 8 (newest published update); 12-month records from US DOT on-time data, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. JSON