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

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

No clear winner: Frontier’s ATL → SAT flights land within a few points of 3 in 4 on time whatever the hour.

Best time to leave 3–4 pm 64% arrive on time from ATL

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).

ATL

% 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.

No Frontier flight on this route ran 150+ times in the year.

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	ATL	SAT	2h 45m	75%	0.0%	83	Not flying now

Alternatives with one stop

All connections →


Frontier Details →	ATL 11:14 → LAS 12:35F9 4891	2h 49m Las Vegas	LAS 15:24 → SAT 20:14F9 3418	10h 01m	95%	77%
Frontier Details →	ATL 12:33 → DEN 14:00F9 3293	1h 40m Denver	DEN 15:40 → SAT 18:56F9 2356	7h 23m	93%	76%

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