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Route · SLC → LAX · 2020–2025 BTS data

Salt Lake City to Los Angeles

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), SLC to LAX (Salt Lake City to Los Angeles) ranks #174 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

84.2%
On-time
+5.2 pts
vs US avg
67 min
Delay when late
27,094
Flights
#174 of 4927
Corpus placement

Cancelled

0.4%

Best Month

Nov 2025 90%

Worst Month

Jul 2024 78%

Distance

590 mi

Carriers

44

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 358 51 6 0 DL,WN,F9,UA,OO
Nov 2025 321 32 2 0 OO,DL,F9,WN
Oct 2025 349 50 0 0 DL,OO,WN,F9,NK
Sep 2025 338 52 2 0 WN,OO,DL,NK,F9
Aug 2025 303 36 1 0 OO,WN,F9,DL
Jul 2025 291 59 2 1 OO,WN,DL,F9
Jun 2025 298 46 2 0 OO,WN,DL,F9
May 2025 335 37 0 0 OO,WN,DL,F9
Apr 2025 359 36 0 0 DL,F9,NK,OO,WN
Mar 2025 413 42 0 0 OO,WN,DL,F9,NK
Feb 2025 378 51 0 0 AA,OO,WN,DL,F9,NK
Jan 2025 400 54 0 0 OO,WN,DL,F9,NK
Dec 2024 315 50 0 0 DL,F9,OO,WN
Nov 2024 258 27 0 0 OO,NK,WN,DL
Oct 2024 316 33 0 0 OO,WN,DL,NK,B6
Sep 2024 316 38 0 0 WN,NK,OO,B6,DL
Aug 2024 335 74 2 0 B6,DL,NK,WN,OO
Jul 2024 335 75 15 1 B6,DL,NK,OO,WN
Jun 2024 345 75 1 0 B6,DL,NK,OO,WN
May 2024 431 68 0 0 B6,DL,NK,OO,WN
Apr 2024 420 63 0 0 B6,DL,NK,OO,WN
Mar 2024 464 74 0 0 B6,DL,NK,OO,WN
Feb 2024 452 91 0 1 B6,DL,NK,OO,WN
Jan 2024 465 71 1 0 B6,DL,NK,WN,OO

SLC–LAX seasonal on-time pattern

Best: November (87.6%) · weakest: December (79.6%)

78%80%82%84%86%88% JanFebMarAprMayJunJulAugSepOctNovDec 79.6%

Strongest calendar month

November

87.6% on-time · ~348 flights/mo

Busiest calendar month

March

~420 flights/mo avg

Weakest calendar month

December

79.6% on-time · ~354 flights/mo

Cancellation Rate

0.4%

34 of 8,595 flights

Diversion Rate

0.0%

3 of 8,595 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

SLC - Salt Lake City

Full on-time, delay-cause, and seasonal performance for Salt Lake City, UT.

SLC on-time profile

LAX - Los Angeles

Full on-time, delay-cause, and seasonal performance for Los Angeles, CA.

LAX on-time profile

Compare the two airports

See SLC and LAX side by side on delays, cancellations, and reliability.

Compare SLC vs LAX

Origin-hub reliability standing

Mid-pack among SLC departures

From SLC, this corridor sits with 31 other 75–85% on-time routes out of 85 tracked departures, not the hub's reliability leaders (54 at ≥85%) and not the softest ( 0 below 75%). Destination: Los Angeles · fleet on-time rank #1522 of 4927.

What the Data Says About SLC to LAX

Bureau of Transportation Statistics records show Salt Lake City to Los Angeles (SLC to LAX) running a 84.2% on-time rate over 27,094 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 66.7 minutes. The 590-mile corridor is served by 44 carriers, and over the last 24 months 0.4% of 8,595 flights were cancelled, 0.0% diverted.

Monthly performance varies moderately here: Nov 2025 was the strongest month at 90% on-time versus Jul 2024 at 78%, a 12-point difference.

On the multi-year calendar, SLC–LAX peaks in November at 87.6% on-time while March carries the heaviest traffic (~420 flights per month) ; the softest month is December at 79.6%, a 8.0-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does SLC to LAX rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, SLC to LAX ranks #174 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from SLC to LAX? ▼
Flights from Salt Lake City to Los Angeles have a 84.2% on-time rate based on 27,094 flights. The average delay is 66.7 minutes. The best recent month was Nov 2025 with 90% on-time.
What is the cancellation rate for SLC to LAX? ▼
Over the last 24 months, 0.4% of flights on this route were cancelled (34 of 8,595 flights) and 0.0% were diverted.
How far is the flight from SLC to LAX? ▼
The flight distance from Salt Lake City (SLC) to Los Angeles (LAX) is approximately 590 miles. This route is served by 44 carriers.
When is the best time to fly from SLC to LAX? ▼
The best recent month for on-time performance was Nov 2025 (90% on-time). The worst was Jul 2024 (78% on-time). Consider booking during months with historically better performance.

Airports on this route

SLC Airport

Salt Lake City
LAX Airport

Los Angeles
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using SLC–LAX data

SLC–LAX runs 5.2 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare SLC and LAX airport profiles: delay causes and top routes differ even on the same corridor. SLC airport
  • If your dates flex, November (87.6% on-time) beats December (79.6%) on this corridor. Seasonal chart
  • 4 other routes post a similar 84.2% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.