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Sunday, October 11 · typical odds for a Sunday (too early for a weather forecast) · issued Mon 12:00 AM ET · connections flying that day

Sun, Oct 11: Delta via Minneapolis, leaving 05:40, is the safest bet: 90% chance of reaching Portland on time; the tightest one-ticket connections make it only 49% of the time.

Nonstops that day

All 2 nonstops →
AS 1787 Alaska Flight history → PHL 17:46 PDX 20:37 27% 7% 1.0% 65%
AA 2245 American PHL 20:07 PDX 23:36 27% 9% 1.2% no record

Best connections that day, one ticket

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

DeltaDetails → PHL 05:40 → MSP 07:20DL 2791 1h 45m Minneapolis MSP 09:05 → PDX 10:41DL 2415 8h 01m 98% 90%
DeltaDetails → PHL 05:15 → ATL 07:19DL 1269 1h 11m Atlanta ATL 08:30 → PDX 10:25DL 539 8h 10m 95% 86%
DeltaDetails → PHL 06:25 → ATL 08:28DL 1152 2h 32m Atlanta ATL 11:00 → PDX 12:58DL 2206 9h 33m 99% 84%
DeltaDetails → PHL 06:10 → DTW 07:48DL 1540 1h 06m Detroit DTW 08:54 → PDX 10:36DL 2171 7h 26m 95% 84%
DeltaDetails → PHL 11:36 → MSP 13:21DL 2688 2h 37m Minneapolis MSP 15:58 → PDX 17:35DL 2008 8h 59m 98% 81%
UnitedDetails → PHL 06:00 → ORD 07:30UA 660 1h 18m Chicago ORD 08:48 → PDX 11:11UA 751 8h 11m 98% 80%
DeltaDetails → PHL 07:05 → SEA 10:01DL 2092 3h 36m Seattle SEA 13:37 → PDX 14:48DL 4062 · flown by SkyWest 10h 43m 99% 79%
DeltaDetails → PHL 12:02 → ATL 14:05DL 2270 2h 47m Atlanta ATL 16:52 → PDX 18:56DL 503 9h 54m 98% 77%
Tight connection: often missed
DeltaDetails → PHL 17:28 → DTW 19:15DL 1391 49m Detroit DTW 20:04 → PDX 21:48DL 913 7h 20m 65% 50%
AmericanDetails → PHL 16:13 → CLT 17:51AA 3012 52m Charlotte CLT 18:43 → PDX 21:18AA 2873 8h 05m 64% 43%
AmericanDetails → PHL 17:30 → PHX 19:37AA 1984 48m Phoenix PHX 20:25 → PDX 23:08AA 561 8h 38m 49% 28%
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 Sun, Oct 11 (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