UAL663
- Airline
- United Airlines (UAL)
- Route
- Denver International Airport (DEN/KDEN) →
- Observed take-off
- Last heard
- Aircraft
- N17428 · BOEING 737 MAX 9
- Positions recorded
- 2000 As of 2026-10-28 03:37 UTC
Source: observations by the map.flights community network of ADS-B receivers; times in UTC.