How long is the DL9979 flight?

The timetable allows 9 h 50 min. Seattle to London is 7,701 km (4,785 mi).

What other flight numbers does DL9979 have?

Also listed as DAL9979 (Delta Air Lines' ICAO code) and DL 9979.

DL9979 Flight Status Delta Air Lines: Seattle to London (DAL9979)

Are you looking for the November 9th, 2026 DL 9979 Detroit to Atlanta flight? Go to our DL9979 Detroit to Atlanta Flight Status page >

DL 9979 Seattle to London Flight Status

Not scheduled today (November 9th, 2026). Latest flight: October 29th, 2026 ; recent history is in the table below.

DL 9979 Flight Status & Schedule Delta Air Lines Seattle to London

Date	From	To	Departure	Arrival	Status	Details
Oct 29	SEA	LHR	06:30	23:20	Cancelled	Track >

Delta Air Lines' Seattle–London flight covers 7,701 km (4,785 mi). The timetable allows 9 h 50 min; there is not enough recent history yet to say how long it usually takes. It is not flying today; the last flight, on 29 October 2026, was cancelled.

< All Seattle SEA Departures All London LHR Arrivals >

About DL 9979

Route: Seattle Tacoma International Airport SEA to London Heathrow Airport LHR
Distance: 7,701 km (4,785 mi)
Scheduled flight time: 9 h 50 min

DL 9979 FAQ

How long is the DL9979 flight?: The timetable allows 9 h 50 min. Seattle to London is 7,701 km (4,785 mi).
What other flight numbers does DL9979 have?: Also listed as DAL9979 (Delta Air Lines' ICAO code) and DL 9979.

DL9979 and Seattle SEA to London LHR Flights

Other flights departing from Seattle SEA: AS1388, AS725, WN4769, AS7006

Other flights arriving at London LHR: BA250, LH2486, BA863, WY103

All flights connecting Seattle SEA to London LHR.