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Any day
Tuesday, October 6 · our forecast odds · issued Sun 10:00 PM ET · connections flying that day

Tue, Oct 6: United via O'Hare, leaving 06:58, is the safest bet: 83% chance of reaching Seattle on time.

Nonstops that day

All 2 nonstops →
AS 78 Alaska Flight history → PIT 07:30 SEA 09:49 18% 3% 0.7% 90%
AS 412 Alaska Flight history → PIT 18:10 SEA 20:30 18% 4% 0.6% 69%

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 Pittsburgh). Layovers up to 4 hours. Pick a connection for its 12-month details.

DeltaDetails → PIT 07:05 → ATL 08:50DL 1383 3h 43m Atlanta ATL 12:33 → SEA 14:50DL 629 10h 45m 99% 90%
DeltaDetails → PIT 11:23 → MSP 12:35DL 845 2h 40m Minneapolis MSP 15:15 → SEA 17:00DL 877 8h 37m 99% 90%
DeltaDetails → PIT 06:00 → BOS 08:00DL 5690 · flown by Republic 3h 29m Boston BOS 11:29 → SEA 14:50DL 332 11h 50m 100% 89%
DeltaDetails → PIT 11:50 → ATL 13:35DL 1363 3h 10m Atlanta ATL 16:45 → SEA 19:05DL 472 10h 15m 100% 88%
DeltaDetails → PIT 05:45 → ATL 07:25DL 1504 2h 25m Atlanta ATL 09:50 → SEA 12:13DL 774 9h 28m 99% 87%
UnitedDetails → PIT 10:30 → IAD 11:42UA 6184 · flown by Mesa 1h 26m Dulles IAD 13:08 → SEA 16:00UA 1824 8h 30m 96% 87%
DeltaDetails → PIT 16:55 → ATL 18:48DL 1353 2h 47m Atlanta ATL 21:35 → SEA 23:59DL 903 10h 04m 99% 86%
DeltaDetails → PIT 13:57 → ATL 15:45DL 1345 2h 05m Atlanta ATL 17:50 → SEA 20:11DL 714 9h 14m 99% 85%
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 Tue, Oct 6 (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