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1,347 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 93% depart on time. After 4 pm it’s 3 in 5.

Best time to leave 6–7 am 98% arrive on time from DEN
Best single flight F9 686 DEN 07:30 → DCA 12:54 · 95% on time Avoid F9 690 DEN 16:27 → DCA 21:59 · 67% 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).

6
7
8
9
10
11
12
13
14
15
16
DEN
95
92
90
78
61
% 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
Washington flights leaving DEN 7–8 am: 1Close ×
F9 686 DEN 07:30 DCA 12:54 3h 24m 313 95% 0.6% 51 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 364 88% 0.3% 59 min
Frontier 983 79% 0.7% 74 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.
F9 686 DEN 07:30 DCA 12:54 95%
UA 789 DEN 09:30 DCA 14:59 91%
F9 688 DEN 11:26 DCA 16:59 78%
F9 690 DEN 16:27 DCA 21:59 67%

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 DCA 3h 26m 88% 0.3% 364 Flying now
Frontier DEN DCA 3h 31m 79% 0.7% 983 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