Sunday, October 11 · typical odds for a Sunday (too early for a weather forecast) · issued Mon 12:00 AM ET · connections flying that day

Sun, Oct 11: Delta via Atlanta, leaving 06:33, is the safest bet: 80% chance of reaching Seattle on time; the tightest one-ticket connections make it only 51% of the time.

Nonstops that day

All 2 nonstops →


DL 356 Delta Flight history →	FLL 08:20	SEA 11:49	14%	4%	1.1%	81%
AS 517 Alaska Flight history →	FLL 18:30	SEA 21:59	35%	11%	1.5%	66%

Best connections that day, one ticket

Most reliable Quickest (80%+ on time)

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


Delta Details →	FLL 05:23 → ATL 07:12DL 1168	2h 38m Atlanta	ATL 09:50 → SEA 12:13DL 774	9h 50m	98%	83%
Delta Details →	FLL 06:00 → DTW 08:56DL 2631	3h 33m Detroit	DTW 12:29 → SEA 14:29DL 728	11h 29m	99%	80%
Delta Details →	FLL 07:40 → ATL 09:33DL 1326	3h 00m Atlanta	ATL 12:33 → SEA 14:50DL 629	10h 10m	97%	79%
Delta Details →	FLL 07:06 → JFK 10:00DL 2165	1h 30m New York	JFK 11:30 → SEA 14:50DL 1719	10h 44m	97%	78%
American Details →	FLL 06:19 → PHX 08:21AA 441	2h 09m Phoenix	PHX 10:30 → SEA 13:41AA 2208	10h 22m	97%	75%
Delta Details →	FLL 09:56 → ATL 11:48DL 1334	2h 50m Atlanta	ATL 14:38 → SEA 16:49DL 481	9h 53m	99%	74%
Delta Details →	FLL 11:27 → DTW 14:26DL 655	2h 20m Detroit	DTW 16:46 → SEA 18:42DL 944	10h 15m	95%	70%
Delta Details →	FLL 11:04 → ATL 12:54DL 1094	3h 51m Atlanta	ATL 16:45 → SEA 19:05DL 472	11h 01m	98%	70%
Tight connection: often missed
Delta Details →	FLL 18:28 → ATL 20:35DL 2345	1h 00m Atlanta	ATL 21:35 → SEA 23:59DL 903	8h 31m	68%	47%
United Details →	FLL 16:20 → ORD 19:00UA 403	1h 07m Chicago	ORD 20:07 → SEA 22:28UA 2211	9h 08m	62%	24%
United Details →	FLL 15:30 → DEN 18:18UA 1417	53m Denver	DEN 19:11 → SEA 21:00UA 2767	8h 30m	51%	23%

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 Sun, Oct 11 (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