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Any day
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 Salt Lake City, leaving 06:15, is the safest bet: 73% chance of reaching Washington on time; the tightest one-ticket connections make it only 57% of the time.

Nonstops that day

All 1 nonstop →
AS 14 Alaska Flight history → SAN 12:42 DCA 21:00 37% 8% 1.1% 70%

Best connections that day, one ticket

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

DeltaDetails → SAN 06:20 → MSP 12:04DL 2134 2h 33m Minneapolis MSP 14:37 → DCA 18:09DL 2963 8h 49m 99% 78%
DeltaDetails → SAN 11:48 → MSP 17:40DL 2121 2h 50m Minneapolis MSP 20:30 → DCA 23:56DL 2961 9h 08m 100% 78%
DeltaDetails → SAN 06:15 → SLC 09:20DL 1117 1h 09m Salt Lake City SLC 10:29 → DCA 16:35DL 820 7h 20m 93% 73%
DeltaDetails → SAN 06:15 → DTW 13:48DL 754 3h 30m Detroit DTW 17:18 → DCA 18:59DL 2030 9h 44m 100% 72%
UnitedDetails → SAN 07:57 → IAH 13:09UA 2760 3h 54m Houston IAH 17:03 → DCA 21:24UA 235 10h 27m 100% 71%
UnitedDetails → SAN 11:58 → IAH 17:25UA 2237 2h 25m Houston IAH 19:50 → DCA 23:59UA 2224 9h 01m 96% 71%
DeltaDetails → SAN 06:15 → ATL 13:49DL 729 1h 46m Atlanta ATL 15:35 → DCA 17:30DL 850 8h 15m 99% 70%
DeltaDetails → SAN 10:36 → ATL 18:11DL 725 3h 48m Atlanta ATL 21:59 → DCA 23:52DL 537 10h 16m 98% 68%
Tight connection: often missed
UnitedDetails → SAN 11:58 → IAH 17:25UA 2237 48m Houston IAH 18:13 → DCA 22:33UA 8150 7h 35m 64% 44%
JetBlueDetails → SAN 11:51 → JFK 20:30B6 190 1h 00m New York JFK 21:30 → DCA 22:59B6 955 8h 08m 64% 31%
AmericanDetails → SAN 10:04 → ORD 16:18AA 2343 52m Chicago ORD 17:10 → DCA 20:26AA 489 7h 22m 57% 29%
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