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Today: only flights still to leave (it’s 3:22 pm at Philadelphia); 2 already left
Monday, October 5 · our forecast odds · issued Mon 1:00 PM ET · connections flying that day

Today looks like a normal day here: all 2 nonstops are 52–53% likely to arrive 15+ min late.

Nonstops today

All 2 nonstops →
AA 5618 American flown by PSA Flight history → PHL 15:45 GSP 17:48 52% 29% 1.4% 68%worse than usual
OH 5451 PSA PHL 17:46 GSP 19:41 53% 32% 1.3% no record

Best connections today, one ticket

Ranked by chance you reach Greenville 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 → PHL 16:08 → ATL 18:32DL 2131 3h 23m Atlanta ATL 21:55 → GSP 22:55DL 2281 6h 47m 95% 71%
AmericanDetails → PHL 16:55 → CLT 18:58AA 3030 3h 32m Charlotte CLT 22:30 → GSP 23:24AA 5504 · flown by PSA 6h 29m 100% 66%
AmericanDetails → PHL 16:02 → CLT 17:14AA 3012 3h 21m Charlotte CLT 20:35 → GSP 21:30AA 5524 · flown by PSA 5h 28m 96% 59%
AmericanDetails → PHL 16:10 → DCA 17:21AA 5363 · flown by PSA 2h 17m Washington DCA 19:38 → GSP 21:26AA 5044 · flown by PSA 5h 16m 100% 45%
Tight connection: often missed
DeltaDetails → PHL 17:17 → ATL 19:29DL 1692 1h 01m Atlanta ATL 20:30 → GSP 21:31DL 3136 4h 14m 52% 38%
DeltaDetails → PHL 17:28 → DTW 19:15DL 1391 50m Detroit DTW 20:05 → GSP 21:47DL 1561 4h 19m 47% 38%
AmericanDetails → PHL 16:02 → CLT 17:14AA 3012 46m Charlotte CLT 18:00 → GSP 19:00AA 3422 · flown by Envoy 2h 58m 8% 6%
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 Mon, Oct 5 (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