Route
SFO → LAS
San Francisco International Airport Harry Reid International Airport
Alerts at SFO and LAS
How punctual is this route?
- On-time arrivals
- 70.2%
- Less than 15 minutes late
- Cancelled
- 0.7%
- Of scheduled flights
- Average delay when late
- 68 min
- Flights arriving 15+ minutes late
- Flights tracked
- 6,140
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 58%
- Airline (crew, maintenance, cleaning) 22%
- Air traffic control & airport 19%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 77.8% | 512 |
| October 2025 | 75.9% | 522 |
| November 2025 | 73.9% | 500 |
| December 2025 | 78.0% | 511 |
| January 2026 | 80.8% | 522 |
| February 2026 | 81.1% | 445 |
| March 2026 | 81.8% | 487 |
| April 2026 | 60.3% | 504 |
| May 2026 | 60.8% | 535 |
| June 2026 | 61.1% | 511 |
| July 2026 | 60.4% | 548 |
| August 2026 | 53.4% | 543 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| United Airlines | 2,817 | 76.8% | 0.4% | 59 min |
| Southwest Airlines | 1,314 | 60.6% | 0.8% | 67 min |
| Alaska Airlines | 1,101 | 72.7% | 0.5% | 67 min |
| Frontier Airlines | 906 | 60.0% | 1.8% | 89 min |
| SkyWest Airlines | 2 | 50.0% | 0.0% | 81 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
UA1995
21% late · 357 flights
-
UA751
31% late · 356 flights
-
UA406
24% late · 340 flights
-
AS776
41% late · 315 flights
-
UA611
24% late · 312 flights
-
AS718
13% late · 284 flights
-
F94158
39% late · 279 flights
-
F94156
49% late · 214 flights
-
F91850
35% late · 206 flights
-
UA2492
9% late · 188 flights
-
UA2400
19% late · 144 flights
-
UA1259
16% late · 135 flights
-
UA2382
25% late · 135 flights
-
F94402
36% late · 113 flights
-
AS1362
29% late · 108 flights
-
UA2449
36% late · 103 flights
-
UA504
21% late · 98 flights
-
UA1358
1% late · 92 flights
-
AS571
37% late · 87 flights
-
UA2839
43% late · 80 flights
-
F92486
34% late · 77 flights
-
UA1960
27% late · 77 flights
-
AS634
11% late · 63 flights
-
WN2264
32% late · 59 flights
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