Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
UA 1634 · Dallas-Fort Worth (DFW) → Chicago (ORD)
Sold by United. Not in the Jun 6 – Jul 31, 2026 schedule; last flew 2026-05-31.
Arrives on time83%within 15 minutes, of 224 flights
Cancelled1.3%of scheduled flights
An hour or more late10%of flights that operated
When late, on average99 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport.
- Leaves DFW
- 10:18
- Arrives ORD
- 12:49
- Flight time
- 2h 36m
- Days flown, last 8 weeks
- 0 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 DFW
All flights leaving Dallas-Fort Worth (DFW) at 10–11 am, wherever they’re going: 79% left within 15 minutes and 2.0% were cancelled (23,239 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.