Showing Frontier only (incl. its regional partners)All airlines ×

470 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

No clear winner: Frontier’s LAX → SLC flights land within a few points of 85% on time whatever the hour.

Best time to leave 11 am–12 pm 89% arrive on time from LAX

Best single flight F9 4130 LAX 09:48 → SLC 12:47 · 89% on time Avoid F9 1268 LAX 10:10 → SLC 13:02 · 81% on time

Time of day × airport

Share of this route’s flights leaving within 15 minutes, by airport and scheduled departure hour, over Aug 2025 – Jul 2026. Blank: no flights then (or fewer than 40 in the year).

LAX

% of this route’s flights leaving within 15 min (small number: flights in the Jun 6 – Jul 31, 2026 schedule): 85+75–8465–7455–64under 55

Pick an hour to see this route’s flights leaving then.

Flights, best and worst

Flights in the Jun 6 – Jul 31, 2026 schedule that ran 150+ times in the year. Times are local. Pick a flight for its history.


F9 4130	LAX 09:48	SLC 12:47	89%
F9 1268	LAX 10:10	SLC 13:02	81%

All 2 Frontier flights in the current schedule

Every flight that flew in the Jun 6 – Jul 31, 2026 schedule, with its record over Aug 2025 – Jul 2026. Times are local. Click a column to sort.


F9 4130	LAX 09:48	SLC 12:47	1h 59m	207	89%	0.0%	106 min
F9 1268	LAX 10:10	SLC 13:02	1h 52m	251	81%	2.0%	64 min

Nonstops by airline and airport

Arriving within 15 minutes, Aug 2025 – Jul 2026. Pick a row to see that airline’s flights on that airport pair.


Frontier	LAX	SLC	1h 59m	85%	1.3%	470	Flying now

Flying on a particular day? Pick a date above and the same ranking uses our forecast odds for each flight that day: Tomorrow.

About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON