Route Reliability
San Francisco → Las Vegas
SFO–LAS · 414 miles · San Francisco International Airport to Harry Reid International Airport
- 76%
- Arrive within 15 minutes
- 10 min
- Average arrival delay
- 0.7%
- Cancelled
- 6,062
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.United Airlines81%2,733 flights
- 2.Alaska Airlines77%1,143 flights
- 3.Southwest Airlines70%1,313 flights
- 4.Frontier Airlines68%873 flights
What the data says
Morning-you made the right choice.
SFO–LAS flights departing between 3–6 AM arrived on time 96% of the time, versus 68% between 3–6 PM.
Skip Thursday if you can.
SFO–LAS flights arrived on time 85% of the time on Saturdays. On Thursdays: 71%.
United Airlines runs this route best.
United Airlines arrived on time 81% of the time on this route; Frontier Airlines managed 68%.
Recent months have been rougher.
SFO–LAS flights arrived on time 68% of the time over the last three months in the data, compared with 80% 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
- Mon75%(920 flights)
- Tue80%(744 flights)
- Wed80%(746 flights)
- Thu71%(911 flights)
- Fri74%(933 flights)
- Sat85%(806 flights)
- Sun73%(957 flights)
- 3–6 AM96%(417 flights)
- 6–9 AM92%(1065 flights)
- 9 AM–12 PM70%(838 flights)
- 12–3 PM71%(918 flights)
- 3–6 PM68%(1075 flights)
- 6–9 PM75%(912 flights)
- 9 PM–12 AM71%(792 flights)
Jun 81% → May 61% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 81% | 494 |
| July 2025 | 78% | 487 |
| August 2025 | 83% | 522 |
| September 2025 | 78% | 514 |
| October 2025 | 76% | 519 |
| November 2025 | 74% | 491 |
| December 2025 | 78% | 508 |
| January 2026 | 81% | 521 |
| February 2026 | 82% | 445 |
| March 2026 | 83% | 484 |
| April 2026 | 61% | 501 |
| May 2026 | 61% | 531 |
Same trip, other airports
Keep nerding
Based on 6,062 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.