ATIS Alerts Smart Flight Search
Find the flight least likely to be delayed
BetaWe rank real flight numbers by how often they flew and arrived on time over the last 12 months, adjusted for your travel month and departure time, then check nearby airports and calmer connections. US airlines and airports.
LAX → SLC
Los Angeles to Salt Lake City: 4,116 nonstop flights a year
On time (12 months)
88%
Cancelled
0.4%
avg delay 10 min
Best time to leave
Before 9 AM
93% on time vs 81% 3 to 6 PM
Most reliable airline
SkyWest
89% chance on time
Lowest nonstop fare seen in the next two months: $155 (Frontier 4130 on 2026-10-30). Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Best trips
19 nonstop, 24 with 1 connection. Best overall weighs the chance you arrive on time as booked, connection odds, travel time and separate tickets.
Best overall#1 · Nonstop · 1h 55m
5:45 AM → 8:39 AM
95%
arrive on time
95% on time · 0.4% cancel5:45 AM LAX → 8:39 AM SLC1h 55m
Delta 2906
Boeing 737-900ER or Airbus A321neo · 3–12 yrs oldFind Delta 2906 fares Opens this date on Aviasales#2 · Nonstop · 1h 56m
7:00 PM → 9:56 PM
93%
arrive on time
93% on time · 0.2% cancel7:00 PM LAX → 9:56 PM SLC1h 56m
United 1846
Airbus A320 · 15–29 yrs oldFind United 1846 fares Opens this date on Aviasales#3 · Nonstop · 1h 53m
9:59 AM → 12:50 PM
92%
arrive on time
93% on time · 0.9% cancel9:59 AM LAX → 12:50 PM SLC1h 53m
Delta 1434
Boeing 737-800 or Airbus A321 · 5–26 yrs oldFind Delta 1434 fares Opens this date on Aviasales#4 · Nonstop · 1h 50m
11:07 AM → 1:57 PM
91%
arrive on time
91% on time · 0.1% cancel11:07 AM LAX → 1:57 PM SLC1h 50m
Delta 1194
Boeing 737-900ER or Airbus A321neo · 3–14 yrs oldFind Delta 1194 fares Opens this date on Aviasales#5 · Nonstop · 2h 01m
1:00 PM → 4:01 PM
92%
arrive on time
92% on time · 0.0% cancel1:00 PM LAX → 4:01 PM SLC2h 01m
SkyWest 5526 · sold as United Express, Delta Connection, American Eagle or Alaska · also flew as 5397
Embraer E175 · 5–9 yrs oldFind 1:00 PM flight fares Opens this date on Aviasales#6 · Nonstop · 2h 01m
4:10 PM → 7:11 PM
91%
arrive on time
91% on time · 0.0% cancel4:10 PM LAX → 7:11 PM SLC2h 01m
SkyWest 4938 · sold as United Express, Delta Connection, American Eagle or Alaska
Embraer E175 · about 5 yrs oldFind 4:10 PM flight fares Opens this date on Aviasales#7 · Nonstop · 1h 52m
8:19 PM → 11:11 PM
90%
arrive on time
90% on time · 0.0% cancel8:19 PM LAX → 11:11 PM SLC1h 52m
SkyWest 5744 · sold as United Express, Delta Connection, American Eagle or Alaska
Embraer E175 · 6–17 yrs oldFind 8:19 PM flight fares Opens this date on Aviasales#8 · Nonstop · 1h 54m
7:35 AM → 10:29 AM
89%
arrive on time
90% on time · 0.7% cancel7:35 AM LAX → 10:29 AM SLC1h 54m
Delta 1318
Boeing 737-900ER or Airbus A321neo · 3–22 yrs oldFind Delta 1318 fares Opens this date on Aviasales#9 · Nonstop · 1h 59m
9:48 AM → 12:47 PM
89%
arrive on time
89% on time · 0.3% cancel9:48 AM LAX → 12:47 PM SLC1h 59m
Frontier 4130
Airbus A321neo or A320neo · 1–10 yrs oldFind Frontier 4130 fares Opens this date on Aviasales#10 · Nonstop · 1h 45m
8:10 AM → 10:55 AM
87%
arrive on time
88% on time · 0.5% cancel8:10 AM LAX → 10:55 AM SLC1h 45m
Southwest 1823
Boeing 737 MAX 8 or 737-800 · 3–10 yrs oldFind Southwest 1823 fares Opens this date on Aviasales
Aircraft and ages come from the planes each flight number actually flew in the last 3 months of data (FAA registry build years); airlines can swap planes.
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)89%
675 flights · 90% on time as flown · 0.1% cancel
- United Airlines89%
149 flights · 89% on time as flown · 0.2% cancel
- Delta Air Lines88%
2,451 flights · 89% on time as flown · 0.4% cancel
- Southwest Airlines84%
374 flights · 84% on time as flown · 0.5% cancel
- Frontier Airlines84%
444 flights · 85% on time as flown · 0.8% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM93%
979 flights · avg delay 8 min
- 9 AM to noon90%
1,158 flights · avg delay 8 min
- Noon to 3 PM85%
695 flights · avg delay 12 min
- 3 to 6 PM81%
625 flights · avg delay 14 min
- 6 to 9 PM87%
659 flights · avg delay 9 min
Best day: Tuesday (91%). Worst: Sunday (85%).
Smarter routing
Nearby airports that run more on time
ONT → SLC 91% chance on time
Ontario International Airport to Salt Lake City International Airport · 1,240 flights a year · 47 mi from your airports · yours: 88%
BUR → SLC 90% chance on time
Hollywood Burbank/Bob Hope Airport to Salt Lake City International Airport · 1,500 flights a year · 18 mi from your airports · yours: 88%
LGB → SLC 90% chance on time
Long Beach International Airport to Salt Lake City International Airport · 1,540 flights a year · 17 mi from your airports · yours: 88%
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