Reliable Flight Search
BetaThe insider way to pick a flight: on-time records, the odds each connection is made, legroom and the age of the planes that actually fly the route. Things airline sites and the big booking sites don’t show you. US airlines and airports.
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.
Best trips
17 nonstop, 29 with 1 connection · ranked by overall best · published legroom for 7 of 46
Top pick#1 · Nonstop · 2h 15m
7:45 PM → 9:00 PM
83
score
95%
arrive on time
95% on time · 0.1% cancel7:45 PM SLC → 9:00 PM LAX2h 15m
SkyWest 6277 · sold as United Express, Delta Connection, American Eagle or Alaska
Embraer E175 · about 5 yrs oldLegroom: not published for this aircraft and cabin yetFind 7:45 PM flight fares Opens this date on Aviasales#2 · Nonstop · 2h 11m
5:00 PM → 6:07 PM
73
score
91%
arrive on time
91% on time · 0.0% cancel5:00 PM SLC → 6:07 PM LAX2h 11m
SkyWest 5484 · sold as United Express, Delta Connection, American Eagle or Alaska · also flew as 5836
Embraer E175 · 5–9 yrs oldLegroom: not published for this aircraft and cabin yetFind 5:00 PM flight fares Opens this date on Aviasales#3 · Nonstop · 2h 15m
12:07 PM → 1:22 PM
69
score
88%
arrive on time
88% on time · 0.1% cancel12:07 PM SLC → 1:22 PM LAX2h 15m
SkyWest 6286 · sold as United Express, Delta Connection, American Eagle or Alaska
Embraer E175 · about 5 yrs oldLegroom: not published for this aircraft and cabin yetFind 12:07 PM flight fares Opens this date on Aviasales#4 · Nonstop · 2h 08m
10:15 AM → 11:23 AM
68
score
87%
arrive on time
88% on time · 1.4% cancel10:15 AM SLC → 11:23 AM LAX2h 08m
Frontier 1267
Airbus A321neo or A320neo · 1–10 yrs oldLegroom: not published for this aircraft and cabin yetFind Frontier 1267 fares Opens this date on Aviasales#5 · Nonstop · 2h 11m
2:46 PM → 3:57 PM
68
score
86%
arrive on time
89% on time · 2.3% cancel2:46 PM SLC → 3:57 PM LAX2h 11m
Frontier 4129
Airbus A321neo · 0–10 yrs oldLegroom: not published for this aircraft and cabin yetFind Frontier 4129 fares Opens this date on Aviasales#6 · Nonstop · 2h 03m
9:36 AM → 10:44 AM
65
score
91%
arrive on time
91% on time · 0.1% cancel9:36 AM SLC → 10:44 AM LAX2h 03m
Delta 1095
Boeing 737-900ER · 7–13 yrs oldLegroom 30–31 in · 17.3 in wide · Delta Main · covers 90% of recent planesFind Delta 1095 fares Opens this date on Aviasales#7 · Nonstop · 2h 04m
5:45 PM → 6:53 PM
65
score
85%
arrive on time
85% on time · 0.5% cancel5:45 PM SLC → 6:53 PM LAX2h 04m
Delta 1161
Airbus A321neo or Boeing 737-900ER · 1–12 yrs oldLegroom: not published for this aircraft and cabin yetFind Delta 1161 fares Opens this date on Aviasales#8 · Nonstop · 2h 05m
7:45 AM → 8:56 AM
64
score
92%
arrive on time
92% on time · 0.7% cancel7:45 AM SLC → 8:56 AM LAX2h 05m
Delta 1087
Boeing 737-800 or Airbus A321 · 5–27 yrs oldLegroom: not published for this aircraft and cabin yetFind Delta 1087 fares Opens this date on Aviasales#9 · Nonstop · 2h 30m
7:45 AM → 9:15 AM
63
score
88%
arrive on time
88% on time · 0.0% cancel7:45 AM SLC → 9:15 AM LAX2h 30m
SkyWest 5408 · sold as United Express, Delta Connection, American Eagle or Alaska
Embraer E175 · 6–17 yrs oldLegroom: not published for this aircraft and cabin yetFind 7:45 AM flight fares Opens this date on Aviasales#10 · Nonstop · 2h 09m
8:00 AM → 9:09 AM
62
score
91%
arrive on time
91% on time · 0.2% cancel8:00 AM SLC → 9:09 AM LAX2h 09m
United 1527
Airbus A320 · 14–29 yrs oldLegroom: not published for this aircraft and cabin yetFind United 1527 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. Legroom is the seat pitch the airline or a seat-map source publishes for that aircraft and cabin; we never estimate it, and seat maps change, so check the airline’s seat map when you book.
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%
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