Route on-time record
SLC to LAX: most on-time flights and the best time to fly
Salt Lake City (Salt Lake City International Airport) to Los Angeles (Los Angeles International Airport). 4,117 nonstop flights in Jun 2025 to May 2026, 86% arrived within 15 minutes and 0.5% were cancelled. The most reliable flight number was SkyWest 6277 at 7:45 PM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
SLC → LAX
Salt Lake City to Los Angeles: 4,117 nonstop flights a year
On time (12 months)
86%
Cancelled
0.5%
avg delay 9 min
Best time to leave
Before 9 AM
91% on time vs 80% 6 to 9 PM
Most reliable airline
United
90% chance on time
Lowest nonstop fare seen in the next two months: $189 (Frontier 1267 on 2026-10-30). Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · SkyWest 6277 · sold as United Express, Delta Connection, American Eagle or Alaska
7:45 PM → 9:00 PM2h 15m nonstop
Local times, typical schedule. Last flown 2026-04-06.
95%
chance on time
- On time (history)
- 97%
- Cancelled
- 0.0%
- Avg arrival delay
- 5 min
- Arrived on time 97% of the time (91 flights, Jun 2025 to May 2026).
- Never cancelled in 91 scheduled flights.
- Leaves in this route's least on-time window (6 to 9 PM: 80% on time; Before 9 AM: 91%).
- Lands inside LAX's trouble window: 53% of its 15 ground stops and delay programs started between 4 PM and 10 PM.
Moderate track record · 91 flights
Find 7:45 PM flight fares Opens this date on Aviasales#2 · Delta 1087
7:45 AM → 8:56 AM2h 05m nonstop
Local times, typical schedule. Last flown 2026-05-31.
92%
chance on time
- On time (history)
- 92%
- Cancelled
- 0.8%
- Avg arrival delay
- 4 min
- Arrived on time 92% of the time (359 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 91% on time; 6 to 9 PM: 80%).
Strong track record · 359 flights
Find Delta 1087 fares Opens this date on Aviasales#3 · Delta 1095
9:36 AM → 10:44 AM2h 03m nonstop
Local times, typical schedule. Last flown 2026-05-31.
91%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.0%
- Avg arrival delay
- 5 min
- Arrived on time 91% of the time (360 flights, Jun 2025 to May 2026).
- Never cancelled in 360 scheduled flights.
Strong track record · 360 flights
Find Delta 1095 fares Opens this date on Aviasales#4 · United 1527
8:00 AM → 9:09 AM2h 09m nonstop
Local times, typical schedule. Last flown 2026-05-20.
91%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.0%
- Avg arrival delay
- 4 min
- Arrived on time 91% of the time (89 flights, Jun 2025 to May 2026).
- Never cancelled in 89 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 91% on time; 6 to 9 PM: 80%).
Moderate track record · 89 flights
Find United 1527 fares Opens this date on Aviasales#5 · SkyWest 5484 · sold as United Express, Delta Connection, American Eagle or Alaska
5:00 PM → 6:10 PM2h 11m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as SkyWest 5836; its record covers all of them.
91%
chance on time
- On time (history)
- 92%
- Cancelled
- 0.0%
- Avg arrival delay
- 8 min
- Arrived on time 92% of the time (150 flights, Jun 2025 to May 2026).
- Never cancelled in 150 scheduled flights.
- Lands inside LAX's trouble window: 53% of its 15 ground stops and delay programs started between 4 PM and 10 PM.
Moderate track record · 150 flights
Find 5:00 PM flight fares Opens this date on Aviasales#6 · SkyWest 6286 · sold as United Express, Delta Connection, American Eagle or Alaska
12:07 PM → 1:22 PM2h 15m nonstop
Local times, typical schedule. Last flown 2026-04-06.
88%
chance on time
- On time (history)
- 89%
- Cancelled
- 0.0%
- Avg arrival delay
- 9 min
- Arrived on time 89% of the time (110 flights, Jun 2025 to May 2026).
- Never cancelled in 110 scheduled flights.
Moderate track record · 110 flights
Find 12:07 PM flight fares Opens this date on Aviasales#7 · SkyWest 5408 · sold as United Express, Delta Connection, American Eagle or Alaska
7:45 AM → 9:15 AM2h 30m nonstop
Local times, typical schedule. Last flown 2026-05-31.
88%
chance on time
- On time (history)
- 87%
- Cancelled
- 0.0%
- Avg arrival delay
- 12 min
- Arrived on time 87% of the time (210 flights, Jun 2025 to May 2026).
- Never cancelled in 211 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 91% on time; 6 to 9 PM: 80%).
Strong track record · 210 flights
Find 7:45 AM flight fares Opens this date on Aviasales#8 · Delta 829
11:15 AM → 12:19 PM2h 04m nonstop
Local times, typical schedule. Last flown 2026-05-31.
87%
chance on time
- On time (history)
- 88%
- Cancelled
- 0.5%
- Avg arrival delay
- 8 min
- Arrived on time 88% of the time (363 flights, Jun 2025 to May 2026).
Strong track record · 363 flights
Find Delta 829 fares Opens this date on Aviasales#9 · Frontier 1267
10:15 AM → 11:23 AM2h 08m nonstop
Local times, typical schedule. Last flown 2026-05-31.
87%
chance on time
- On time (history)
- 88%
- Cancelled
- 1.4%
- Avg arrival delay
- 8 min
- Arrived on time 88% of the time (286 flights, Jun 2025 to May 2026).
Strong track record · 286 flights
Find Frontier 1267 fares Opens this date on Aviasales#10 · Frontier 4129
2:46 PM → 3:57 PM2h 11m nonstop
Local times, typical schedule. Last flown 2026-04-13.
86%
chance on time
- On time (history)
- 89%
- Cancelled
- 3.4%
- Avg arrival delay
- 9 min
- Arrived on time 89% of the time (114 flights, Jun 2025 to May 2026).
- Cancelled 3.4% of the time (4 of 118).
Moderate track record · 114 flights
Find Frontier 4129 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- United Airlines90%
148 flights · 92% on time as flown · 0.3% cancel
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)89%
675 flights · 89% on time as flown · 0.1% cancel
- Frontier Airlines86%
444 flights · 88% on time as flown · 1.5% cancel
- Delta Air Lines85%
2,453 flights · 86% on time as flown · 0.5% cancel
- Southwest Airlines79%
374 flights · 79% on time as flown · 0.3% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM91%
789 flights · avg delay 6 min
- 9 AM to noon90%
903 flights · avg delay 6 min
- Noon to 3 PM82%
434 flights · avg delay 13 min
- 3 to 6 PM84%
1,126 flights · avg delay 9 min
- 6 to 9 PM80%
459 flights · avg delay 12 min
- After 9 PM85%
406 flights · avg delay 8 min
Best day: Tuesday (89%). Worst: Sunday (81%).
Smarter routing
Nearby airports that run more on time
PVU → SNA 90% chance on time
Provo Municipal Airport to John Wayne Orange County International Airport · 409 flights a year · 78 mi from your airports · yours: 86%
SLC → ONT 88% chance on time
Salt Lake City International Airport to Ontario International Airport · 1,240 flights a year · 47 mi from your airports · yours: 86%
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Airline (crew, maintenance, boarding)49%
- Late-arriving aircraft36%
- Air traffic control and airport volume12%
- Severe weather3%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
SLC to LAX questions
- What time of day is best to fly SLC to LAX?
- Before 9 AM: 91% of flights arrived on time, against 80% for departures 6 to 9 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
- Which airline is most on time from SLC to LAX?
- United, with a season-adjusted 90% chance of operating and arriving on time over 148 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on SLC to LAX?
- July (76% on time); the best was November (89%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from SLC
- LAX to SLC (return)
- SLC to DEN 77%
- SLC to PHX 84%
- SLC to SEA 79%
- SLC to DFW 78%
- SLC to LAS 78%
- SLC to SFO 72%
- SLC to ORD 75%
- SLC to ATL 86%
- SLC to SAN 84%
- SLC to PDX 88%
- SLC to SMF 86%
- SLC to IAH 85%
Live status: FAA delays and ground stops