Delta DL21 Flight Status Today

International flight Delta DL21 takes off from London (LHR) United Kingdom to Seattle (SEA) United States. It's operated by Delta Airlines. The plane leaves London Heathrow Airport at 12:20 29 December 2025 Europe/London. The flight is expected to land at Seattle International Airport at 14:58 29 December 2025 America/Los_Angeles. The flight will last about 10 hours 38 minutes.

Current status of DL21 is Scheduled On time Estimated Depart in 52 minutes

DL21 - DAL21 Delta Airlines (DL)
LHR London United Kingdom
Flight LHR to SEA
SEA Seattle United States
Scheduled On time Estimated Depart in 52 minutes
Departure London Heathrow Airport
IATA: LHRICAO: EGLL
Scheduled 12:20 29 December 2025
Estimated 12:15 29 December 2025
3 28
Arrival Seattle International Airport
IATA: SEAICAO: KSEA
Scheduled 14:58 29 December 2025
Estimated 14:44 29 December 2025
None None
DL21 Detail
  • Type: International Flight
  • Code Shares: AF 3599, KL 6022, SK 3985, VS 4036
  • Flight Duration: 10 hours 38 minutes
  • Flight Distance: 7726 kms / 4801 miles
Airline
  • Delta Airlines
  • IATA: DL
  • ICAO: DAL
  • Operating Days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday
Passenger Services
  • Service type: Normal passenger
  • Seats: 208
  • Freight capacity: 12.7 tons
  • Passenger classes: Economy, Business Class, Premium Economy
More Detail
  • Aircraft: Airbus A330-200
  • Callsign: F-CYZF4
  • Departure Timezone: Europe/London
  • Arrival Timezone: America/Los_Angeles
  • Current Time in London: Monday 2025-12-29 11:23 AM
  • Current Time in Seattle: Monday 2025-12-29 03:23 AM

Delta DL21 Flight Statistics

Delta
Delta
FLIGHT NO DL21
AIRPLANE Airbus A330-200
ON TIME 14
DELAYED 0
CANCELLED 0
ON TIME 28
DELAYED 2
CANCELLED 0
ON TIME 56
DELAYED 3
CANCELLED 1
ON TIME 77
DELAYED 5
CANCELLED 2
Last 14 days flight data
14 30 60 90
On Time Rate

Delta DL21 Flight Schedule and Histories

Time Departure Arrival Actual departure Actual arrival
Fri 26 Dec
Departed On time
London (LHR) 2025-12-26T12:20
Seattle (SEA) 2025-12-26T14:58
2025-12-26T12:10
Mon 24 Nov
Departed On time
London (LHR) 2025-11-24T12:20
Seattle (SEA) 2025-11-24T14:48
2025-11-24T12:15
Fri 21 Nov
Scheduled On time
London (LHR) 2025-11-21T12:20
Seattle (SEA) 2025-11-21T14:48
Wed 19 Nov
Scheduled On time
London (LHR) 2025-11-19T12:20
Seattle (SEA) 2025-11-19T14:48
Tue 18 Nov
Scheduled On time
London (LHR) 2025-11-18T12:20
Seattle (SEA) 2025-11-18T14:48
Mon 17 Nov
Scheduled On time
London (LHR) 2025-11-17T12:20
Seattle (SEA) 2025-11-17T14:48
Fri 14 Nov
Departed On time
London (LHR) 2025-11-14T12:20
Seattle (SEA) 2025-11-14T14:48
2025-11-14T12:15
Wed 12 Nov
Departed On time
London (LHR) 2025-11-12T12:20
Seattle (SEA) 2025-11-12T14:48
2025-11-12T12:18
Sat 08 Nov
Departed On time
London (LHR) 2025-11-08T12:20
Seattle (SEA) 2025-11-08T14:48
2025-11-08T12:26
Thu 06 Nov
Arrived On time
London (LHR) 2025-11-06T12:20
Seattle (SEA) 2025-11-06T14:48
2025-11-06T12:20
2025-11-06T14:21

Flight routes similar to Delta DL21

Airline Flight no Departure Arrival
SAS SK3985
SAS 		29/12/2025
12:20 		10 hours 38 minutes
14:58
Finnair AY5449
Finnair 		29/12/2025
14:55 		0 minutes
16:55
British Airways BA49
British Airways 		29/12/2025
14:55 		0 minutes
16:55
American Airlines AA6908
American Airlines 		29/12/2025
14:55 		0 minutes
16:55
Virgin Atlantic VS105
Virgin Atlantic 		29/12/2025
14:45 		10 hours 5 minutes
16:50
Alaska Airlines AS5267
Alaska Airlines 		29/12/2025
14:55 		0 minutes
16:55
Delta DL5975
Delta 		29/12/2025
14:45 		10 hours 5 minutes
16:50
British Airways BA53
British Airways 		29/12/2025
09:25 		9 hours 42 minutes
11:30

Delta Flight DL21 FAQs

What is the scheduled flight duration for Delta DL21 flight?

On average, nonstop flight takes 10 hour(s) 38 minutes, with the flight distance of 7726 km (4801 miles).

What is the current status of Delta DL21 flight?

The current status of flight Delta DL21 is Scheduled On time.

What type of aircraft is used for the Delta DL21 flight?

All Delta DL21 flights are operated using Airbus A330-200 aircraft.

How many Delta DL21 flights are operated a week?

7 flights per week. The Flight Delta DL21 is operated on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday .