Seattle (SEA) to Oklahoma City (OKC): On-Time Performance
Data through May 2026
Seattle (SEA) to Oklahoma City (OKC) effectively runs on two schedules. In October 2024, 97% of arrivals were on time; in July 2025 that fell to 69% — a 28-point seasonal swing. Across the full period the route averages 87% on-time against a national 78%.
- On-time
- 87%
- arrived <15 min late
- Avg delay
- 7 min
- completed flights
- Cancelled
- 0.6%
- Flights/day
- 1.1
- last 12 months
- Duration
- 3h 39m
- scheduled
- Distance
- 1,519 mi
Monthly on-time trend
Best time to fly from SEA to OKC
Aim for departures around 7 a.m. (95% on-time); avoid 6 p.m. departures (56%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 89% | 7 min |
| Tuesday | 82% | 8 min |
| Wednesday | 88% | 5 min |
| Thursday | 82% | 9 min |
| Friday | 86% | 8 min |
| Saturdaybest | 90% | 4 min |
| Sunday | 89% | 5 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft23%
- Airline operations48%
- National airspace system26%
- Weather3%
Frequently asked questions
- How often are flights from SEA to OKC delayed?
- 13% of SEA–OKC flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 7 minutes.
- What is the best time of day to fly from SEA to OKC?
- Departures around 7 a.m. have the best record (95% on-time), while departures around 6 p.m. have the worst (56%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SEA to OKC?
- The scheduled SEA–OKC flight time averages 3h 39m over 1,519 miles. Actual arrival times vary — flights on this route land 15+ minutes late 13% of the time.
- How often are SEA to OKC flights cancelled?
- 0.6% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from SEA to OKC?
- July 2025 was the roughest month in this dataset, with only 69% of arrivals on time. The best was October 2024 at 97%. If your dates are flexible, that 28-point gap is worth planning around.
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Based on 726 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.