1,449 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

United is clearly ahead here: 9 in 10 of its flights arrive on time, 10 points better than Southwest.

Best time to leave 5–6 am 93% arrive on time from FAT

Best single flight UA 1774 FAT 05:00 → DEN 08:22 · 93% on time Avoid UA 4764 FAT 12:15 → DEN 15:51 · 90% 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).

FAT

% 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

Denver flights leaving FAT 11 am–12 pm: 1Close ×


WN 1423	FAT 11:35	DEN 14:50	2h 15m	57	68%	0.0%	43 min

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.


United (incl. SkyWest)	1,090	91%	0.0%	86 min
Southwest	359	81%	0.0%	58 min

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.


UA 1774	FAT 05:00	DEN 08:22	93%
UA 5787flown by SkyWest	FAT 09:00	DEN 12:34	91%
UA 4764flown by SkyWest	FAT 12:15	DEN 15:51	90%

All 5 flights on this route →

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.


United	FAT	DEN	2h 34m	91%	0.0%	1,090	Flying now
Southwest	FAT	DEN	2h 15m	81%	0.0%	359	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