Oklahoma City (OKC) to Seattle (SEA): On-Time Performance
Data through July 2026
The calendar drives reliability on OKC–SEA. May 2026 flights landed on schedule 97% of the time, but October 2024 dropped to 58% — a gap of 39 points. Across the full period the route averages 81% on-time against a national 78%.
- On-time
- 81%
- arrived <15 min late
- Avg delay
- 9 min
- completed flights
- Cancelled
- 0.7%
- Flights/day
- 1.2
- last 12 months
- Duration
- 3h 58m
- scheduled
- Distance
- 1,519 mi
Monthly on-time trend
Best time to fly from OKC to SEA
Aim for departures around 7 a.m. (94% on-time); avoid 2 p.m. departures (78%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Mondaybest | 85% | 8 min |
| Tuesday | 78% | 9 min |
| Wednesday | 85% | 7 min |
| Thursday | 80% | 9 min |
| Friday | 76% | 12 min |
| Saturday | 85% | 7 min |
| Sunday | 77% | 9 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft37%
- Airline operations19%
- National airspace system31%
- Weather11%
- Security2%
Frequently asked questions
- How often are flights from OKC to SEA delayed?
- 19% of OKC–SEA flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 9 minutes.
- What is the best time of day to fly from OKC to SEA?
- Departures around 7 a.m. have the best record (94% on-time), while departures around 2 p.m. have the worst (78%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from OKC to SEA?
- The scheduled OKC–SEA flight time averages 3h 58m over 1,519 miles. Actual arrival times vary — flights on this route land 15+ minutes late 19% of the time.
- How often are OKC to SEA flights cancelled?
- 0.7% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from OKC to SEA?
- October 2024 was the roughest month in this dataset, with only 58% of arrivals on time. The best was May 2026 at 97%. If your dates are flexible, that 39-point gap is worth planning around.
Explore related pages
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Related guides
Based on 808 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.