Route Reliability
Houston → Sacramento
IAH–SMF · 1,609 miles · George Bush Intercontinental Airport to Sacramento International Airport
- 80%
- Arrive within 15 minutes
- 4 min
- Average arrival delay
- 0.3%
- Cancelled
- 676
- Flights in the data
Data through May 2026.
United Airlines is the only airline in this data on this route, arriving on time 80% of the time across 676 flights. No comparison to make.
What the data says
Morning-you made the right choice.
IAH–SMF flights departing between 9 AM–12 PM arrived on time 86% of the time, versus 76% between 6–9 PM.
Sunday scaries are real for this one.
IAH–SMF flights arrived on time 86% of the time on Tuesdays and just 70% on Sundays. That gap is worth planning around.
It basically never cancels.
Out of 676 scheduled flights, only 0.3% were cancelled.
Slipping a little lately.
IAH–SMF flights arrived on time 82% of the time over the last three months in the data, compared with 85% in the three months before that.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon79%(100 flights)
- Tue86%(98 flights)
- Wed83%(101 flights)
- Thu85%(100 flights)
- Fri84%(100 flights)
- Sat72%(78 flights)
- Sun70%(96 flights)
- 9 AM–12 PM86%(310 flights)
- 6–9 PM76%(363 flights)
Jun 71% → May 79% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 71% | 59 |
| July 2025 | 79% | 61 |
| August 2025 | 73% | 60 |
| September 2025 | 83% | 58 |
| October 2025 | 75% | 55 |
| November 2025 | 83% | 60 |
| December 2025 | 77% | 44 |
| January 2026 | 83% | 53 |
| February 2026 | 94% | 51 |
| March 2026 | 85% | 54 |
| April 2026 | 80% | 56 |
| May 2026 | 79% | 62 |
Same trip, other airports
Keep nerding
Based on 676 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.