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Any day
Tuesday, October 6 · our forecast odds · issued Mon 9:00 AM ET · connections flying that day

Tomorrow: one nonstop, WN 3144 at 15:34, with a 12% chance of arriving 15+ min late.

Nonstops that day

All 1 nonstop →
WN 3144 Southwest ECP 15:34 STL 17:31 12% 3% 0.9% no record

Best connections that day, one ticket

Ranked by chance you reach St Louis on time, from each leg’s forecast for the day. Total trip = scheduled departure to arrival. Layovers up to 4 hours. Pick a connection for its 12-month details.

DeltaDetails → ECP 09:12 → ATL 11:20DL 3048 3h 43m Atlanta ATL 15:03 → STL 15:52DL 543 6h 40m 99% 88%
DeltaDetails → ECP 17:03 → ATL 19:21DL 3094 3h 49m Atlanta ATL 23:10 → STL 23:53DL 1403 6h 50m 100% 88%
UnitedDetails → ECP 06:30 → IAH 08:28UA 4255 · flown by CommuteAir 3h 20m Houston IAH 11:48 → STL 14:00UA 2042 7h 30m 99% 87%
DeltaDetails → ECP 11:38 → ATL 13:51DL 3045 3h 19m Atlanta ATL 17:10 → STL 17:53DL 1393 6h 15m 99% 86%
DeltaDetails → ECP 14:47 → ATL 17:00DL 2823 2h 09m Atlanta ATL 19:09 → STL 19:58DL 2833 5h 11m 97% 85%
DeltaDetails → ECP 06:00 → ATL 08:13DL 3114 51m Atlanta ATL 09:04 → STL 09:43DL 1400 3h 43m 91% 83%
AmericanDetails → ECP 07:37 → DFW 10:06AA 4120 · flown by Envoy 2h 41m Dallas-Fort Worth DFW 12:47 → STL 14:40AA 1363 7h 03m 95% 75%
AmericanDetails → ECP 12:13 → DFW 14:21AA 3625 · flown by Envoy 1h 50m Dallas-Fort Worth DFW 16:11 → STL 18:08AA 2761 5h 55m 98% 74%
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