1,769 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

United is clearly ahead here: 84% of its flights arrive on time, 17 points better than Southwest.

Best time to leave 9–10 am 90% arrive on time from DEN

Best single flight UA 480 DEN 09:35 → CMH 14:28 · 92% 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).

DEN

% 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

Columbus flights leaving DEN 5–6 pm: 1Close ×


UA 1843	DEN 17:40	CMH 22:37	2h 57m	145	77%	0.0%	77 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	728	84%	0.7%	60 min
Southwest	919	67%	0.8%	54 min
Frontier	122	–	0.8%	98 min

Dimmed: fewer than 150 flights in the year, too few to rank.

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 480	DEN 09:35	CMH 14:28	92%

All 6 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	DEN	CMH	2h 53m	84%	0.7%	728	Flying now
Frontier	DEN	CMH	2h 56m	83%	0.8%	122	Flying now
Southwest	DEN	CMH	2h 40m	67%	0.8%	919	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