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1,001 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 92% depart on time. After 4 pm it’s 4 in 5.

Best time to leave 7–8 am 95% arrive on time from TYS

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).

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TYS
% 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.

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) 728 88% 0.7% 89 min
Allegiant 66 – 0.0% 48 min
Frontier 134 – 0.0% 88 min
Southwest 73 – 0.0% 76 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.

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

All 5 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.

G4 3031 TYS 07:00 DEN 08:15 3h 15m 12 92% 0.0% 95 min
UA 1256 TYS 08:48 DEN 10:12 3h 24m 92 93% 0.0% 154 min
WN 1645 TYS 16:20 DEN 17:35 3h 15m 57 58% 0.0% 76 min
UA 720 TYS 16:56 DEN 18:20 3h 24m 71 70% 0.0% 91 min
F9 4369 TYS 20:26 DEN 21:52 3h 26m 131 76% 0.0% 90 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.

United TYS DEN 3h 26m 88% 0.7% 728 Flying now
Allegiant TYS DEN 3h 15m 88% 0.0% 66 Flying now
Frontier TYS DEN 3h 26m 75% 0.0% 134 Flying now
Southwest TYS DEN 3h 15m 67% 0.0% 73 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