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Any day
Thursday, October 8 · typical odds for a Thursday (too early for a weather forecast) · issued Sun 12:00 PM ET · connections flying that day

Thu, Oct 8: one nonstop, AS 500 at 09:09, with a 24% chance of arriving 15+ min late.

Nonstops that day

All 1 nonstop →
AS 500 Alaska Flight history → SEA 09:09 IND 16:16 24% 4% 0.7% 79%

Best connections that day, one ticket

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

DeltaDetails → SEA 00:20 → MSP 05:36DL 953 3h 14m Minneapolis MSP 08:50 → IND 11:28DL 2456 8h 08m 100% 92%
DeltaDetails → SEA 00:26 → ATL 08:18DL 652 2h 47m Atlanta ATL 11:05 → IND 12:36DL 3013 9h 10m 100% 89%
DeltaDetails → SEA 06:05 → MSP 11:24DL 943 1h 31m Minneapolis MSP 12:55 → IND 15:33DL 2910 6h 28m 98% 88%
UnitedDetails → SEA 05:00 → DEN 08:43UA 2601 1h 15m Denver DEN 09:58 → IND 14:35UA 1522 6h 35m 99% 87%
DeltaDetails → SEA 06:00 → ATL 13:53DL 569 3h 34m Atlanta ATL 17:27 → IND 19:07DL 3120 10h 07m 100% 85%
DeltaDetails → SEA 09:01 → ATL 17:03DL 560 3h 48m Atlanta ATL 20:51 → IND 22:27DL 1482 10h 26m 98% 84%
DeltaDetails → SEA 11:09 → SLC 14:15DL 1265 3h 35m Salt Lake City SLC 17:50 → IND 22:59DL 2228 8h 50m 99% 81%
UnitedDetails → SEA 10:52 → ORD 17:05UA 2835 2h 40m Chicago ORD 19:45 → IND 22:05UA 3707 · flown by Republic 8h 13m 91% 80%
Tight connection: often missed
DeltaDetails → SEA 11:59 → ATL 20:04DL 554 47m Atlanta ATL 20:51 → IND 22:27DL 1482 7h 28m 58% 49%
How these are worked out. Each flight’s odds are our forecast for that day (typical odds until the weather forecast covers it); 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