Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
UA 400 · Richmond (RIC) → Denver (DEN)
Sold by United. Still flying: 24 of the last 56 days (Mon, Thu, Fri, Sun).
Arrives on time61%within 15 minutes, of 24 flights
Cancelled0.0%of scheduled flights
An hour or more late17%of flights that operated
When late, on average71 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport (Denver is 2 h behind Richmond).
- Leaves RIC
- 16:12
- Arrives DEN
- 18:05
- Flight time
- 3h 53m
- Days flown, last 8 weeks
- 24 of 56
Each square is a day, Sat Jun 6 to Fri Jul 31, two weeks per row (each column is the same weekday); filled = flew.
How late it arrives
Share of flights that operated arriving more than this late.
Horizontal: minutes late at arrival (0 to 3 hours). Vertical: share of flights later than that.
Its hour at RIC
All flights leaving Richmond (RIC) at 4–5 pm, wherever they’re going: 70% left within 15 minutes and 2.0% were cancelled (1,469 flights in the year). Other United flights on this route →
Upcoming forecasts
Our odds that this flight is late or cancelled on the days we publish.