ON TIMEBOARD
OKC Oklahoma City / SEA Seattle

OKC → SEA on time

OKC Will Rogers World (Oklahoma City, OK) to Seattle-Tacoma (Seattle, WA). Every scheduled flight, September 2025 to August 2026.

On time
88%
arrived < 15 min late
Cancelled
0.2%
424 flights
Typical arrival
−8 min
median vs schedule
When late
+36 min
average delay
Flights / day
1
1 airline

88% of flights from Oklahoma City to Seattle arrived on time over the past 12 months. That is better than the typical U.S. route. 2% of flights arrived more than an hour late or not at all.

How late?

The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for OKC → SEA: when a flight was late, it was under 45 minutes late 86% of the time. About 1 in 71 flights landed an hour or more late; 0.2% were cancelled outright.

Share of all 424 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
Alaska Airlines42488%0.2%−8 min1.4%+36 minAlaska Airlines

Airline = the name on the ticket. Regional flights (e.g. "Delta Connection") count under the ticketing airline, and the operator is listed.

Best time of day to fly

On-time rate by scheduled departure hour (local time at OKC). Delays build through the day as late planes knock on, so early flights usually do best.

40%70%100%7 a.m. departures: too few flights (71 flights)7a8 a.m. departures: too few flights8a9 a.m. departures: too few flights9a10 a.m. departures: too few flights10a11 a.m. departures: too few flights11anoon departures: too few flights12p1 p.m. departures: too few flights1p2 p.m. departures: 86% on time (298 flights)862p3 p.m. departures: too few flights (55 flights)3p
OKC → SEA, share of flights arriving on time, by departure hour. Hours with under 100 flights are greyed out.
82%+ on time76–82%68–76%under 68%too few flights

By month

Each calendar month pooled over 2023–2026. Best: August (84%). Worst: June (79%).

40%70%100%Jan: too few flights (72 flights)JanFeb: too few flights (70 flights)FebMar: too few flights (87 flights)MarApr: too few flights (90 flights)AprMay: too few flights (93 flights)MayJun: 79% on time (111 flights)79JunJul: 81% on time (139 flights)81JulAug: 84% on time (132 flights)84AugSep: too few flights (90 flights)SepOct: too few flights (84 flights)OctNov: too few flights (82 flights)NovDec: too few flights (84 flights)Dec

By day of week

DayFlightsOn timeCancelled
Monday63——
Tuesday57——
Wednesday63——
Thursday61——
Friday62——
Saturday56——
Sunday62——

Why flights were late

Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.

Late inbound plane 38%Air traffic & airport (NAS) 28%Airline (crew, maintenance, ops) 27%Severe weather 7%Security 1%

Cancellations: weather 1

Month by month

Not enough months with data to draw a trend.

Flight numbers on this route

Regular flights with at least 120 scheduled trips in the past year. Sorted by departure time.

FlightDepartsFlightsOn timeCancelledTypical arrivalOperated by
AS 4052:55 p.m.35186%0.3%−6 minAlaska Airlines

Questions

How often are flights from OKC to SEA on time?

88% of 424 scheduled flights from Oklahoma City, OK to Seattle, WA arrived within 15 minutes of schedule between September 2025 and August 2026. 0.2% were cancelled.

What month has the most delays from OKC to SEA?

June (79% on time). The best month is August (84%), over 2023–2026.

Related

Domestic flights by the airlines that report to the U.S. DOT, plus their regional partners. "On time" means arriving less than 15 minutes after schedule; cancelled and diverted flights count as not on time. Past performance is a guide, not a forecast. Method.