Route
SLC → LAX
Salt Lake City International Airport Los Angeles International Airport
How punctual is this route?
- On-time arrivals
- 85.6%
- Less than 15 minutes late
- Cancelled
- 0.5%
- Of scheduled flights
- Average delay when late
- 61 min
- Flights arriving 15+ minutes late
- Flights tracked
- 4,196
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 49%
- Late-arriving aircraft 35%
- Air traffic control & airport 13%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 84.5% | 338 |
| October 2025 | 85.7% | 349 |
| November 2025 | 90.0% | 321 |
| December 2025 | 85.5% | 358 |
| January 2026 | 85.1% | 391 |
| February 2026 | 87.1% | 374 |
| March 2026 | 88.8% | 422 |
| April 2026 | 85.1% | 342 |
| May 2026 | 87.9% | 330 |
| June 2026 | 86.5% | 327 |
| July 2026 | 83.2% | 336 |
| August 2026 | 76.5% | 308 |
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 |
|---|---|---|---|---|
| Delta Air Lines | 2,459 | 83.5% | 0.5% | 58 min |
| SkyWest Airlines | 720 | 91.1% | 0.0% | 85 min |
| Frontier Airlines | 475 | 90.0% | 1.1% | 80 min |
| Southwest Airlines | 371 | 80.3% | 0.3% | 51 min |
| United Airlines | 148 | 91.9% | 0.0% | 47 min |
| NK | 23 | 90.9% | 4.3% | 36 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
DL829
14% late · 365 flights
-
DL841
22% late · 365 flights
-
DL1087
9% late · 362 flights
-
DL1095
9% late · 360 flights
-
DL1142
26% late · 360 flights
-
DL1161
19% late · 356 flights
-
F91267
9% late · 243 flights
-
DL1197
19% late · 236 flights
-
OO5408
10% late · 208 flights
-
F94129
10% late · 196 flights
-
OO5484
8% late · 159 flights
-
OO6286
11% late · 110 flights
-
OO6277
3% late · 91 flights
-
UA1527
9% late · 89 flights
-
OO5300
15% late · 46 flights
-
OO5456
2% late · 45 flights
-
F94233
17% late · 36 flights
-
WN3746
9% late · 35 flights
-
OO5753
16% late · 31 flights
-
UA2667
10% late · 31 flights
-
WN4298
32% late · 31 flights
-
WN3501
27% late · 30 flights
-
WN2336
4% late · 28 flights
-
WN3722
11% late · 28 flights
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Headlines found by Google News; stories open on the publisher's site.
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