The best bet has a stop: United via Denver (6h 29m) reaches Washington on time 9 times in 10, against 78% on the nonstop.
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).
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.
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 2 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.
Alternatives with one stop
All connections →| UnitedDetails → | LAS 05:30 → DEN 08:32UA 596 | 58m Denver | DEN 09:30 → DCA 14:59UA 789 | 6h 29m | 98% | 89% |
| UnitedDetails → | LAS 23:30 → ORD 05:11UA 2102 | 49m Chicago | ORD 06:00 → DCA 08:54 +1UA 1077 | 6h 24m | 88% | 80% |
| SouthwestDetails → | LAS 06:10 → MDW 11:45WN 2270 | 1h 00m Chicago | MDW 12:45 → DCA 15:35WN 2761 | 6h 25m | 96% | 67% |
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