1,778 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

No clear winner: United’s DEN → BIL flights land within a few points of 82% on time whatever the hour.

Best time to leave 7–8 am 91% arrive on time from DEN

Best single flight UA 1417 DEN 19:40 → BIL 21:17 · 80% on time Avoid UA 5498 DEN 15:35 → BIL 17:19 · 77% 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

Billings flights leaving DEN 7–8 pm: 1Close ×


UA 1417	DEN 19:40	BIL 21:17	1h 37m	277	80%	0.4%	71 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)	1,778	82%	0.6%	63 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 1417	DEN 19:40	BIL 21:17	80%
UA 5257flown by SkyWest	DEN 21:10	BIL 22:54	80%
UA 703	DEN 11:45	BIL 13:22	80%
UA 5498flown by SkyWest	DEN 15:35	BIL 17:19	77%

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	BIL	1h 41m	82%	0.6%	1,778	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