Tickets
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 looks like a normal day here: all 2 nonstops are 5–12% likely to arrive 15+ min late.

Nonstops that day

All 2 nonstops →
WN 1207 Southwest CLE 08:21 MDW 08:49 5% 2% 0.7% no record
WN 1209 Southwest CLE 14:41 MDW 15:08 12% 4% 0.7% no record

Best connections that day, one ticket

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

DeltaDetails → CLE 07:05 → ATL 08:55DL 2838 2h 05m Atlanta ATL 11:00 → MDW 11:56DL 2417 5h 51m 99% 88%
DeltaDetails → CLE 05:35 → ATL 07:22DL 2734 1h 47m Atlanta ATL 09:09 → MDW 10:05DL 1063 5h 30m 98% 88%
DeltaDetails → CLE 10:15 → ATL 11:59DL 1500 3h 16m Atlanta ATL 15:15 → MDW 16:15DL 1728 7h 00m 99% 86%
DeltaDetails → CLE 10:26 → DTW 11:27DL 5192 · flown by Endeavor 58m Detroit DTW 12:25 → MDW 12:46DL 4688 · flown by Endeavor 3h 20m 82% 67%
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