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Tuesday, October 6 · our forecast odds · issued Mon 5:00 AM ET · connections flying that day

Tomorrow: Delta via Salt Lake City, leaving 19:30, is the safest bet: 90% chance of reaching Boston on time.

Best connections that day, one ticket

Most reliable Quickest (80%+ on time)

Ranked by chance you reach Boston on time, from each leg’s forecast for the day. Total trip = scheduled departure to arrival (Boston is 2 h ahead of Bozeman). Layovers up to 4 hours. Pick a connection for its 12-month details.
DeltaDetails → BZN 19:30 → SLC 20:55DL 3676 · flown by SkyWest 2h 37m Salt Lake City SLC 23:32 → BOS 06:05 +1DL 696 8h 35m 99% 90%
DeltaDetails → BZN 13:55 → MSP 17:21DL 2946 2h 48m Minneapolis MSP 20:09 → BOS 23:55DL 2614 8h 00m 99% 89%
DeltaDetails → BZN 05:15 → SLC 06:34DL 491 3h 16m Salt Lake City SLC 09:50 → BOS 16:36DL 657 9h 21m 100% 89%
DeltaDetails → BZN 06:00 → MSP 09:11DL 1678 3h 39m Minneapolis MSP 12:50 → BOS 16:50DL 2558 8h 50m 99% 89%
UnitedDetails → BZN 06:30 → DEN 08:24UA 1362 1h 16m Denver DEN 09:40 → BOS 15:44UA 1232 7h 14m 97% 87%
DeltaDetails → BZN 12:13 → SLC 13:39DL 1971 3h 36m Salt Lake City SLC 17:15 → BOS 23:47DL 702 9h 34m 99% 86%
AmericanDetails → BZN 11:53 → DFW 15:53AA 952 3h 11m Dallas-Fort Worth DFW 19:04 → BOS 00:05 +1AA 1268 10h 12m 99% 80%
AmericanDetails → BZN 06:30 → DFW 10:38AA 817 3h 51m Dallas-Fort Worth DFW 14:29 → BOS 19:31AA 1401 11h 01m 100% 80%
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