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

Tomorrow: Delta via Minneapolis, leaving 00:33, is the safest bet: 89% chance of reaching Boston on time; the tightest one-ticket connections make it only 50% of the time.

Nonstops that day

All 2 nonstops →
AS 436 Alaska Flight history → PDX 21:56 BOS 06:20 11% 3% 0.6% 80%
AS 358 Alaska Flight history → PDX 08:21 BOS 16:46 11% 4% 0.6% 83%

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 3 h ahead of Portland). Layovers up to 4 hours. Pick a connection for its 12-month details.
DeltaDetails → PDX 17:14 → SLC 20:06DL 1244 3h 26m Salt Lake City SLC 23:32 → BOS 06:05 +1DL 696 9h 51m 100% 91%
UnitedDetails → PDX 00:08 → IAH 06:09UA 780 3h 41m Houston IAH 09:50 → BOS 14:48UA 2393 11h 40m 100% 90%
DeltaDetails → PDX 00:33 → MSP 05:49DL 2359 1h 11m Minneapolis MSP 07:00 → BOS 10:45DL 2649 7h 12m 97% 89%
DeltaDetails → PDX 07:05 → JFK 15:46DL 451 1h 44m New York JFK 17:30 → BOS 19:16DL 5798 · flown by Republic 9h 11m 99% 89%
DeltaDetails → PDX 06:00 → MSP 11:14DL 2369 1h 36m Minneapolis MSP 12:50 → BOS 16:50DL 2558 7h 50m 99% 89%
DeltaDetails → PDX 05:45 → SLC 08:33DL 1270 1h 17m Salt Lake City SLC 09:50 → BOS 16:36DL 657 7h 51m 99% 88%
UnitedDetails → PDX 05:15 → SFO 07:01UA 1896 2h 30m San Francisco SFO 09:31 → BOS 18:17UA 2647 10h 02m 100% 88%
UnitedDetails → PDX 05:00 → DEN 08:31UA 459 1h 09m Denver DEN 09:40 → BOS 15:44UA 1232 7h 44m 98% 87%
Tight connection: often missed
AlaskaDetails → PDX 13:48 → SEA 14:43AS 2205 · flown by Horizon 53m Seattle SEA 15:36 → BOS 23:59AS 460 7h 11m 50% 40%
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