Friday, October 9 · typical odds for a Friday (too early for a weather forecast) · issued Sun 4:00 PM ET · connections flying that day

Fri, Oct 9: WN 4386 at 08:00 is the safest bet, 8% chance of being 15+ min late; the others run 39%.

Nonstops that day

All 2 nonstops →


WN 4386 Southwest Flight history →	DAL 08:00	CMH 11:20	8%	2%	0.6%	81%
WN 1289 Southwest Flight history →	DAL 20:10	CMH 23:35	39%	8%	0.6%	35%

Best connections that day, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	DAL 06:05 → ATL 09:17DL 516	2h 49m Atlanta	ATL 12:06 → CMH 13:38DL 1750	6h 33m	98%	88%
Southwest Details →	DAL 06:00 → MDW 08:15WN 1355	2h 50m Chicago	MDW 11:05 → CMH 13:15WN 114	6h 15m	100%	88%
Southwest Details →	DAL 07:00 → BNA 08:45WN 1519	1h 20m Nashville	BNA 10:05 → CMH 12:25WN 4427	4h 25m	96%	87%
Southwest Details →	DAL 07:35 → AUS 08:40WN 1265	2h 15m Austin	AUS 10:55 → CMH 14:35WN 270	6h 00m	96%	85%
Southwest Details →	DAL 07:20 → STL 09:05WN 274	50m St Louis	STL 09:55 → CMH 12:15WN 3902	3h 55m	93%	85%
Delta Details →	DAL 15:59 → ATL 19:14DL 512	3h 51m Atlanta	ATL 23:05 → CMH 00:44 +1DL 1501	7h 45m	98%	84%
Delta Details →	DAL 10:07 → ATL 13:16DL 441	2h 39m Atlanta	ATL 15:55 → CMH 17:34DL 2280	6h 27m	99%	83%
Southwest Details →	DAL 06:00 → BWI 09:55WN 1280	50m Baltimore	BWI 10:45 → CMH 12:10WN 4524	5h 10m	88%	80%
Tight connection: often missed
Southwest Details →	DAL 16:40 → BNA 18:30WN 1277	50m Nashville	BNA 19:20 → CMH 21:45WN 850	4h 05m	60%	41%
Southwest Details →	DAL 16:35 → LAS 17:25WN 1322	1h 05m Las Vegas	LAS 18:30 → CMH 01:30 +1WN 873	7h 55m	70%	40%

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 Fri, Oct 9 (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