Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
UA 1873 · Phoenix (PHX) → Dulles (IAD)
Sold by United. Still flying: 56 of the last 56 days (Daily).
Arrives on time92%within 15 minutes, of 347 flights
Cancelled0.6%of scheduled flights
An hour or more late2%of flights that operated
When late, on average70 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport (Dulles is 3 h ahead of Phoenix).
- Leaves PHX
- 08:50
- Arrives IAD
- 16:17
- Flight time
- 4h 27m
- Days flown, last 8 weeks
- 56 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 PHX
All flights leaving Phoenix (PHX) at 8–9 am, wherever they’re going: 88% left within 15 minutes and 0.6% were cancelled (18,411 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.