Seattle (SEA) to Houston (HOU): On-Time Performance
Data through July 2026
Seattle (SEA) to Houston (HOU) is a thinner route than most in this dataset — 120 departures over the past year, roughly 2 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 61% arrived on time, noticeably below the national average of 78%.
- On-time
- 61%
- arrived <15 min late
- Avg delay
- 22 min
- completed flights
- Cancelled
- 0.0%
- Flights/day
- 0.33
- last 12 months
- Duration
- 4h 19m
- scheduled
- Distance
- 1,894 mi
Monthly on-time trend
Best time to fly from SEA to HOU
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 64% | 10 min |
| Tuesday | 68% | 17 min |
| Wednesday | 60% | 13 min |
| Thursday | 54% | 29 min |
| Friday | 50% | 33 min |
| Saturdaybest | 76% | 8 min |
| Sunday | 56% | 40 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft56%
- Airline operations32%
- National airspace system11%
- Weather1%
- Security1%
Frequently asked questions
- How often are flights from SEA to HOU delayed?
- 39% of SEA–HOU 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 22 minutes.
- How long is the flight from SEA to HOU?
- The scheduled SEA–HOU flight time averages 4h 19m over 1,894 miles. Actual arrival times vary — flights on this route land 15+ minutes late 39% of the time.
- How often are SEA to HOU flights cancelled?
- 0% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
Explore related pages
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Related guides
Based on 177 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.