ON TIMEBOARD

AS 549 on time

Alaska Airlines 549: Seattle to Dallas at 12:13 p.m. (past 12 months)

On time
69%
277 flights · likely 64–74%
Cancelled
0.4%
of scheduled flights
Typical arrival
−1 min
median vs schedule
When late
+46 min
average delay
Similar flights
77%
AS, same route & hour

About 1 in 3 AS 549 flights from Seattle arrived 15+ minutes late, diverted or cancelled over the past year (31%); 0.4% were cancelled. The typical flight landed 1 minutes early.

AS 549: SEA → DFW

Scheduled to leave Seattle at 12:13 p.m. local time. Over the past year it arrived on time 69% of the time (277 flights), worse than other AS flights on the route at that hour (77%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Aug 2025: 61% on time (28 flights)61AugSep 2025: 70% on time (30 flights)70SepOct 2025: 71% on time (31 flights)71OctNov 2025: 85% on time (20 flights)85NovDec 2025: 70% on time (30 flights)70DecJan 2026: too few flights (6 flights)JanMar 2026: too few flights (14 flights)MarApr 2026: 86% on time (29 flights)86AprMay 2026: 71% on time (28 flights)71MayJun 2026: 53% on time (30 flights)53JunJul 2026: 68% on time (31 flights)68JulAug 2026: 57% on time (28 flights)57Aug

By day of week

DayFlightsOn time
Monday4173%
Tuesday4080%
Wednesday3876%
Thursday4166%
Friday4060%
Saturday3765%
Sunday4065%

Why it was late

Airline (crew, maintenance, ops) 35%Air traffic & airport (NAS) 33%Late inbound plane 24%Severe weather 7%Security 1%

All flights SEA → DFW · Connecting off AS 549? Check the risk

Questions

How often is AS 549 from SEA to DFW late?

Alaska Airlines 549 from Seattle, WA to Dallas/Fort Worth, TX arrived 15 or more minutes late, was diverted or was cancelled on 31% of 277 scheduled flights between September 2025 and August 2026. 0.4% 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 Alaska Airlines for today's flight. Method.