DAL21
- Flight number
- DAL21
- Airline
- Delta Air Lines (DAL)
- Route
- London Heathrow Airport (LHR/EGLL) → Seattle–Tacoma International Airport (SEA/KSEA) At least one end of this route is not from our own observation.
- Observed take-off
- Last heard
- Aircraft
- N433DX · AIRBUS A-330-900
- Positions recorded
- 2700 As of 2026-09-25 19:49 UTC
Source: observations by the map.flights community network of ADS-B receivers; times in UTC.