UAL421
- Airline
- United Airlines (UAL)
- Route
- Washington Dulles International Airport (IAD/KIAD) → Chicago O'Hare International Airport (ORD/KORD)
- Observed take-off
- Observed landing
- Aircraft
- N76532 · BOEING 737-800
- Positions recorded
- 3995
- Time airborne
- 88 min
Source: observations by the map.flights community network of ADS-B receivers; times in UTC.