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Any day
Wednesday, October 7 · our forecast odds · issued Mon 6:00 AM ET · connections flying that day

Wed, Oct 7 looks like a normal day here: all 2 nonstops are 7–10% likely to arrive 15+ min late.

Nonstops that day

All 2 nonstops →
DL 937 Delta Flight history → ATL 11:59 TUS 12:35 7% 2% 0.5% 87%
DL 1251 Delta Flight history → ATL 21:05 TUS 21:49 10% 3% 0.5% 77%

Best connections that day, one ticket

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

DeltaDetails → ATL 15:20 → SLC 17:18DL 526 3h 12m Salt Lake City SLC 20:30 → TUS 21:29DL 4054 · flown by SkyWest 9h 09m 100% 93%
DeltaDetails → ATL 10:10 → SLC 12:10DL 387 2h 50m Salt Lake City SLC 15:00 → TUS 16:06DL 3717 · flown by SkyWest 8h 56m 100% 91%
DeltaDetails → ATL 14:45 → LAX 16:17DL 753 3h 04m Los Angeles LAX 19:21 → TUS 20:59DL 3846 · flown by SkyWest 9h 14m 100% 88%
DeltaDetails → ATL 09:15 → LAX 10:45DL 827 3h 25m Los Angeles LAX 14:10 → TUS 15:50DL 3776 · flown by SkyWest 9h 35m 99% 87%
AmericanDetails → ATL 16:55 → LAX 18:42AA 2221 2h 20m Los Angeles LAX 21:02 → TUS 22:43AA 6315 · flown by SkyWest 8h 48m 97% 87%
UnitedDetails → ATL 08:46 → DEN 10:14UA 340 1h 16m Denver DEN 11:30 → TUS 12:32UA 1188 6h 46m 97% 85%
SouthwestDetails → ATL 07:05 → DEN 08:07WN 204 49m Denver DEN 08:56 → TUS 10:05WN 1708 6h 00m 88% 83%
UnitedDetails → ATL 15:57 → IAH 17:23UA 3992 · flown by Mesa 2h 53m Houston IAH 20:16 → TUS 20:57UA 1976 8h 00m 95% 81%
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 Wed, Oct 7 (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