ON TIMEBOARD

DL 481 on time

Delta Air Lines 481: Atlanta to Seattle at 4:29 p.m. (past 12 months)

On time
78%
329 flights · likely 74–83%
Cancelled
0.0%
of scheduled flights
Typical arrival
−1 min
median vs schedule
When late
+51 min
average delay
Similar flights
85%
DL, same route & hour

About 1 in 5 DL 481 flights from Atlanta arrived 15+ minutes late, diverted or cancelled over the past year (22%); 0.0% were cancelled. The typical flight landed 1 minutes early.

DL 481: ATL → SEA

Scheduled to leave Atlanta at 4:29 p.m. local time. Over the past year it arrived on time 78% of the time (329 flights), worse than other DL flights on the route at that hour (85%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Aug 2025: too few flights (10 flights)AugOct 2025: 77% on time (26 flights)77OctNov 2025: 90% on time (29 flights)90NovDec 2025: 58% on time (31 flights)58DecJan 2026: 90% on time (31 flights)90JanFeb 2026: 86% on time (28 flights)86FebMar 2026: 58% on time (31 flights)58MarApr 2026: 97% on time (30 flights)97AprMay 2026: 90% on time (31 flights)90MayJun 2026: 80% on time (30 flights)80JunJul 2026: 65% on time (31 flights)65JulAug 2026: 74% on time (31 flights)74Aug

By day of week

DayFlightsOn time
Monday4881%
Tuesday4779%
Wednesday4785%
Thursday4676%
Friday4772%
Saturday4785%
Sunday4770%

Why it was late

Airline (crew, maintenance, ops) 47%Air traffic & airport (NAS) 38%Late inbound plane 12%Severe weather 4%

All flights ATL → SEA · Connecting off DL 481? Check the risk

Questions

How often is DL 481 from ATL to SEA late?

Delta Air Lines 481 from Atlanta, GA to Seattle, WA arrived 15 or more minutes late, was diverted or was cancelled on 22% of 329 scheduled flights between September 2025 and August 2026. 0.0% 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.