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AF3603

SEA → LHR · AIRBUS A-330-900 · Delta Air Lines

For travellers

Departure · Seattle (SEA)

Gate A10
Scheduled 01 Oct 21:50
Board status: On-Time
Airborne since 01 Oct 22:06 (ADS-B)

Arrival · London (LHR)

Terminal 3
Scheduled 02 Oct 15:35
Board status: Landed 14:53, bags delivered on belt 08
Landed 02 Oct 14:58 (ADS-B)

Board data from heathrow, sea, updated 68 min ago; times local to each airport.

Flight

Status
Completed
Arrival confirmed via
ADS-B (ground reading)
Departure
Seattle Tacoma International Airport (SEA) — Seattle, United States
Scheduled departure
2026-10-02 04:50 UTC
Departed
2026-10-02 05:06 UTC
Arrival
London Heathrow Airport (LHR) — London, United Kingdom
Scheduled arrival
2026-10-02 14:35 UTC
Also flies as
DL20
Codeshares
AF3603, KL6021, SK3986, SV4417, VS4037
Distance flown
8147 km
Straight-line distance
7702 km
Approach distance
122 km

Aircraft

Registration
N403DX
Type
AIRBUS A-330-900
Seats
281 total (168 Economy, 56 Delta Comfort+, 28 Delta Premium Select, 29 Delta One)
CO2 (EMEP est., total)
355.5 t (3091 kg/pax Business, 1226 kg/pax Premium Economy, 1033 kg/pax Economy)

Altitude & speed

Max altitude
39,025 ft
Max ground speed
560 kt
Tracked
8h 52m · 8,139 km
Altitude (ft, max 39,025)
021,07442,1470m1h 0m2h 0m3h 0m4h 0m5h 0m6h 0m7h 0m8h 0m
Ground speed (kt, max 560)
03026050m1h 0m2h 0m3h 0m4h 0m5h 0m6h 0m7h 0m8h 0m
Altitude (ft, max 39,025)
021,07442,1470m2h 0m4h 0m6h 0m8h 0m
Ground speed (kt, max 560)
03026050m2h 0m4h 0m6h 0m8h 0m

From the ADS-B positions we received; time since the first fix. A dashed stretch is a gap in reception, bridged by a straight line.

Route map

Airline

Delta Air Lines (DAL)

Latest flights

DepartedFlightRouteRegAircraftStatusDistance
2026-10-02 05:06 UTC DAL20 SEA → LHR
Seattle → London
 N403DX AIRBUS A-330-900 Completed 8147 km
2026-10-01 05:00 UTC DAL20 SEA → LHR
Seattle → London
 N407DX AIRBUS A-330-900 Completed 8194 km

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