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.
SLC → LGB
Salt Lake City to Long Beach: 1,540 nonstop flights a year
On time (12 months)
87%
Cancelled
0.2%
avg delay 7 min
Best time to leave
3 to 6 PM
92% on time vs 83% noon to 3 PM
Most reliable airline
SkyWest
93% chance on time
Lowest nonstop fare seen in the next two months: $343 (Southwest 4154 on 2026-10-25). Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Best trips
10 nonstop, 31 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 · 2h 02m
3:17 PM → 4:19 PM
94%
arrive on time
94% on time · 0.0% cancel3:17 PM SLC → 4:19 PM LGB2h 02m
SkyWest 3793 · sold as United Express, Delta Connection, American Eagle or Alaska
Embraer E175 · 7–10 yrs oldFind 3:17 PM flight fares Opens this date on Aviasales#2 · Nonstop · 1h 58m
8:45 PM → 9:43 PM
94%
arrive on time
94% on time · 0.0% cancel8:45 PM SLC → 9:43 PM LGB1h 58m
SkyWest 3754 · sold as United Express, Delta Connection, American Eagle or Alaska · also flew as 3670
Embraer E175 · 4–18 yrs oldFind 8:45 PM flight fares Opens this date on Aviasales#3 · Nonstop · 2h 02m
8:30 PM → 9:32 PM
92%
arrive on time
92% on time · 0.0% cancel8:30 PM SLC → 9:32 PM LGB2h 02m
SkyWest 3503 · sold as United Express, Delta Connection, American Eagle or Alaska
Embraer E175 · 4–18 yrs oldFind 8:30 PM flight fares Opens this date on Aviasales#4 · Nonstop · 1h 58m
11:05 AM → 12:07 PM
89%
arrive on time
90% on time · 0.5% cancel11:05 AM SLC → 12:07 PM LGB1h 58m
Delta 1116
Airbus A220-300 or A220-100 · 1–7 yrs oldFind Delta 1116 fares Opens this date on Aviasales#5 · Nonstop · 1h 58m
8:45 PM → 9:43 PM
87%
arrive on time
87% on time · 0.4% cancel8:45 PM SLC → 9:43 PM LGB1h 58m
Delta 954
Airbus A220-100 · 6–7 yrs oldFind Delta 954 fares Opens this date on Aviasales#6 · Nonstop · 1h 55m
11:10 AM → 12:05 PM
84%
arrive on time
84% on time · 0.2% cancel11:10 AM SLC → 12:05 PM LGB1h 55m
Southwest 4128
Boeing 737-700 · 19–23 yrs oldFind Southwest 4128 fares Opens this date on Aviasales#7 · 1 connection · 5h 20m · one ticket (Southwest)
7:05 AM → 11:25 AM
98%
connections made
92%
arrive on time
94% on time · 0.3% cancel7:05 AM SLC → 7:50 AM SMF1h 45m
Southwest 4311
Boeing 737-700 or 737 MAX 8 · 3–22 yrs oldConnect in SMF · 2h 10m · 99% chance to make it · same ticket: the airline rebooks you if you miss it94% on time · 0.3% cancel10:00 AM SMF → 11:25 AM LGB1h 25m
Southwest 4345
Boeing 737-700 · 15–22 yrs oldFind this Southwest trip Look for Southwest 4311 + Southwest 4345 on Aviasales#8 · 1 connection · 4h 40m · one ticket (Southwest)
6:15 AM → 9:55 AM
96%
connections made
89%
arrive on time
97% on time · 0.8% cancel6:15 AM SLC → 6:55 AM PHX1h 40m
Southwest 1599 · also flew as 4276
Boeing 737 MAX 8 or 737-800 · 1–21 yrs oldConnect in PHX · 1h 25m · 98% chance to make it · same ticket: the airline rebooks you if you miss it92% on time · 0.4% cancel8:20 AM PHX → 9:55 AM LGB1h 35m
Southwest 2161
Boeing 737-700 · 5–23 yrs oldFind this Southwest trip Look for Southwest 1599 + Southwest 2161 on Aviasales#9 · 1 connection · 4h 25m · one ticket (Southwest)
6:15 AM → 9:40 AM
95%
connections made
87%
arrive on time
97% on time · 0.8% cancel6:15 AM SLC → 6:55 AM PHX1h 40m
Southwest 1599 · also flew as 4276
Boeing 737 MAX 8 or 737-800 · 1–21 yrs oldConnect in PHX · 1h 10m · 96% chance to make it · same ticket: the airline rebooks you if you miss it92% on time · 0.3% cancel8:05 AM PHX → 9:40 AM LGB1h 35m
Southwest 1675
Boeing 737-700 or 737 MAX 8 · 3–21 yrs oldFind this Southwest trip Look for Southwest 1599 + Southwest 1675 on Aviasales#10 · Nonstop · 2h 00m
8:10 PM → 9:10 PM
76%
arrive on time
76% on time · 0.2% cancel8:10 PM SLC → 9:10 PM LGB2h 00m
Southwest 4300
Boeing 737 MAX 8 or 737-800 · 2–11 yrs oldFind Southwest 4300 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)93%
651 flights · 94% on time as flown · 0.0% cancel
- Delta Air Lines88%
438 flights · 89% on time as flown · 0.4% cancel
- Southwest Airlines79%
451 flights · 77% on time as flown · 0.2% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- 9 AM to noon86%
511 flights · avg delay 9 min
- Noon to 3 PM83%
94 flights · avg delay 7 min
- 3 to 6 PM92%
461 flights · avg delay 5 min
- 6 to 9 PM85%
469 flights · avg delay 6 min
Best day: Saturday (92%). Worst: Sunday (84%).
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 · 61 mi from your airports · yours: 87%
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