ON TIMEBOARD

DL 356 on time

Delta Air Lines 356: Fort Lauderdale to Seattle at 8:35 a.m. (past 12 months)

On time
80%
255 flights · likely 75–84%
Cancelled
1.6%
of scheduled flights
Typical arrival
−8 min
median vs schedule
When late
+56 min
average delay
Similar flights
76%
DL, same route & hour

About 1 in 5 DL 356 flights from Fort Lauderdale arrived 15+ minutes late, diverted or cancelled over the past year (20%); 1.6% were cancelled. The typical flight landed 8 minutes early.

DL 356: FLL → SEA

Scheduled to leave Fort Lauderdale at 8:35 a.m. local time. Over the past year it arrived on time 80% of the time (255 flights), better than other DL flights on the route at that hour (76%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Dec 2025: too few flights (12 flights)DecJan 2026: 65% on time (31 flights)65JanFeb 2026: 54% on time (28 flights)54FebMar 2026: 71% on time (31 flights)71MarApr 2026: 80% on time (30 flights)80AprMay 2026: 90% on time (31 flights)90MayJun 2026: 100% on time (30 flights)100JunJul 2026: 87% on time (31 flights)87JulAug 2026: 97% on time (31 flights)97Aug

By day of week

DayFlightsOn time
Monday3792%
Tuesday3675%
Wednesday3681%
Thursday3683%
Friday3669%
Saturday3778%
Sunday3781%

Why it was late

Late inbound plane 47%Airline (crew, maintenance, ops) 26%Air traffic & airport (NAS) 21%Severe weather 6%

All flights FLL → SEA · Connecting off DL 356? Check the risk

Questions

How often is DL 356 from FLL to SEA late?

Delta Air Lines 356 from Fort Lauderdale, FL to Seattle, WA arrived 15 or more minutes late, was diverted or was cancelled on 20% of 255 scheduled flights between September 2025 and August 2026. 1.6% were cancelled.

Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check Delta Air Lines for today's flight. Method.