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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: American via Charlotte, leaving 06:08, is the safest bet: 83% chance of reaching San Antonio on time; the tightest one-ticket connections make it only 75% of the time.

Nonstops that day

All 1 nonstop →
AA 1947 American Flight history → DCA 18:32 SAT 21:13 26% 9% 0.7% 57%

Best connections that day, one ticket

Ranked by chance you reach San Antonio on time, from each leg’s forecast for the day. Total trip = scheduled departure to arrival (San Antonio is 1 h behind Washington). Layovers up to 4 hours. Pick a connection for its 12-month details.

DeltaDetails → DCA 06:00 → MSP 07:35DL 1193 1h 25m Minneapolis MSP 09:00 → SAT 11:49DL 2667 6h 49m 97% 89%
UnitedDetails → DCA 06:00 → IAH 08:13UA 1450 1h 22m Houston IAH 09:35 → SAT 10:47UA 1371 5h 47m 98% 88%
DeltaDetails → DCA 08:00 → ATL 09:51DL 343 2h 24m Atlanta ATL 12:15 → SAT 13:38DL 1408 6h 38m 96% 86%
DeltaDetails → DCA 10:16 → ATL 12:06DL 926 3h 34m Atlanta ATL 15:40 → SAT 17:11DL 1465 7h 55m 100% 85%
DeltaDetails → DCA 09:00 → ATL 10:50DL 455 2h 55m Atlanta ATL 13:45 → SAT 15:10DL 2009 7h 10m 98% 85%
AmericanDetails → DCA 04:55 → DFW 07:06AA 2007 1h 56m Dallas-Fort Worth DFW 09:02 → SAT 10:26AA 2759 6h 31m 97% 84%
DeltaDetails → DCA 06:00 → DTW 07:29DL 2869 56m Detroit DTW 08:25 → SAT 10:34DL 788 5h 34m 95% 84%
AmericanDetails → DCA 07:49 → PHX 09:39AA 2006 2h 43m Phoenix PHX 12:22 → SAT 16:44AA 570 9h 55m 98% 84%
Tight connection: often missed
DeltaDetails → DCA 17:29 → DTW 19:15DL 1454 1h 00m Detroit DTW 20:15 → SAT 22:22DL 1365 5h 53m 75% 59%
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