Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

DAL20

Operated by Delta Air Lines

Live map

Live map filtered to DAL20. Shown when the flight is currently airborne.

Route airports View route page →

Departure

SEA KSEA VFR

Seattle–Tacoma International Airport

Seattle, US

Local time
17:23 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
433 ft
Coordinates
47.4479, -122.3103

cloud Weather

Wind
0° / 0 kt
Visibility
10 SM
Ceiling
FEW 4,000 ft, FEW 23,000 ft
Temp / Dew
16°C / 2°C
Altimeter
30.05 inHg

Obs: 2026-10-12T23:53:00.000Z

Raw METAR / TAF 
METAR KSEA 122353Z 00000KT 10SM FEW040 FEW230 16/02 A3005 RMK AO2 SLP182 T01560017 10161 20111 55000

TAF KSEA 122320Z 1300/1406 29005KT P6SM SKC FM130300 VRB04KT P6SM SCT250 FM130600 14003KT P6SM SCT250 FM131200 16004KT P6SM OVC100 FM131800 20005KT P6SM OVC100 FM132300 23005KT P6SM OVC050

flight Live Traffic

flight_takeoff 186 Departures
flight_land 231 Arrivals

Arrival

LHR EGLL MVFR

London Heathrow Airport

London, GB

Local time
01:23 GMT+1
Timezone
Europe/London
Type
Large Airport
Elevation
83 ft
Coordinates
51.4707, -0.4599

cloud Weather

Wind
220° / 9 kt
Visibility
6 SM
Ceiling
OVC 1,400 ft
Temp / Dew
17°C / 14°C
Altimeter
29.97 inHg

Obs: 2026-10-12T23:50:00.000Z

Raw METAR / TAF 
METAR EGLL 122350Z AUTO 22009KT 190V250 9999 OVC014 17/14 Q1015

TAF EGLL 122308Z 1300/1406 20005KT 9999 SCT008 BKN018 PROB40 TEMPO 1300/1302 BKN008 TEMPO 1302/1307 6000 -DZ BKN006 PROB30 TEMPO 1302/1306 3000 DZ BR BKN004 BECMG 1303/1306 21015KT PROB30 TEMPO 1305/1308 22017G27KT BECMG 1308/1311 27015G28KT TEMPO 1308/1312 6000 RA BKN014 PROB30 TEMPO 1308/1311 4000 +SHRA BECMG 1309/1312 CAVOK BECMG 1315/1318 26009KT PROB30 1404/1406 6000

flight Live Traffic

flight_takeoff 42 Departures
flight_land 72 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 A50725 SEA → LHR Jul 26, 05:15 UTCJul 26, 13:55 UTC8h 41m - -
2026-07-25 A4F239 SEA → LHR Jul 25, 05:20 UTCJul 25, 06:15 UTC55m - -
2026-07-25 A4F239 SEA → LHR Jul 25, 05:15 UTCJul 25, 13:46 UTC8h 31m +25m +14m
2026-07-24 A4B827 SEA → LHR Jul 24, 05:00 UTCJul 24, 13:40 UTC8h 40m - -
2026-07-23 A51D6F SEA → LHR Jul 23, 05:05 UTCJul 23, 14:05 UTC9h 0m - -
2026-07-22 A4FFB7 - Jul 22, 05:00 UTCJul 22, 05:25 UTC25m - -
2026-07-22 A4FFB7 SEA → LHR Jul 22, 04:57 UTCJul 22, 13:45 UTC8h 48m +7m +9m
2026-07-21 A53612 - Jul 21, 05:25 UTCJul 21, 06:30 UTC1h 5m - -
2026-07-21 A53612 SEA → LHR Jul 21, 05:24 UTCJul 21, 14:12 UTC8h 48m +34m +13m
2026-07-20 A53D80 SEA → LHR Jul 20, 05:15 UTCJul 20, 14:10 UTC8h 55m - -
2026-07-19 A54137 - Jul 19, 13:55 UTCJul 19, 14:05 UTC10m - -
2026-07-19 A54137 - Jul 19, 05:00 UTCJul 19, 05:45 UTC45m - -
2026-07-19 A54137 SEA → LHR Jul 19, 04:59 UTCJul 19, 13:38 UTC8h 39m +9m +5m
2026-07-18 A53612 - Jul 18, 13:35 UTCJul 18, 13:50 UTC15m - -
2026-07-18 A53612 SEA → LHR Jul 18, 05:11 UTCJul 18, 13:19 UTC8h 8m +21m -20m
2026-07-18 A53612 - Jul 18, 05:15 UTCJul 18, 12:00 UTC6h 45m - -
2026-07-17 A51D6F SEA → LHR Jul 17, 05:25 UTCJul 17, 14:20 UTC8h 55m - -
2026-07-16 A51D6F SEA → LHR Jul 16, 05:21 UTCJul 16, 14:13 UTC8h 52m +31m +2m
2026-07-16 A51D6F - Jul 16, 05:25 UTCJul 16, 07:10 UTC1h 45m - -
2026-07-15 A544EE - Jul 15, 05:05 UTCJul 15, 14:10 UTC9h 5m - -
2026-07-14 A51601 - Jul 14, 04:55 UTCJul 14, 06:55 UTC2h 0m - -
2026-07-14 A51601 SEA → LHR Jul 14, 04:55 UTCJul 14, 13:39 UTC8h 44m +5m +3m
2026-07-13 A53612 SEA → LHR Jul 13, 05:20 UTCJul 13, 14:05 UTC8h 45m - -
2026-07-12 A50370 SEA → LHR Jul 12, 05:35 UTCJul 12, 14:25 UTC8h 50m - -
2026-07-11 A50370 - Jul 11, 05:05 UTCJul 11, 14:00 UTC8h 55m - -
2026-07-11 A50370 SEA → LHR Jul 11, 05:01 UTCJul 11, 13:46 UTC8h 45m +11m +6m
2026-07-10 A50370 SEA → LHR Jul 10, 05:10 UTCJul 10, 14:05 UTC8h 55m - -
2026-07-09 A539C9 - Jul 9, 05:25 UTCJul 9, 08:05 UTC2h 40m - -
2026-07-09 A539C9 SEA → LHR Jul 9, 05:25 UTCJul 9, 14:39 UTC9h 14m +35m +4m
2026-07-08 A4B827 SEA → LHR Jul 8, 05:10 UTCJul 8, 14:20 UTC9h 10m - -

Performance history

Flights tracked
165 showing last 30
Avg arrival delay
+4m
On-time arrival
100% 100% on time
Aircraft used
12

Monthly activity 4 months

Month Flights tracked
July 2026 42
June 2026 43
May 2026 49
April 2026 31

DAL20 frequently asked

Where does flight DAL20 fly?
DAL20 (Delta Air Lines) flies from SEA to LHR. View the full route page.
How long is flight DAL20?
Based on observed flights, DAL20 takes on average 6h 26m from takeoff to landing.
How often does DAL20 fly?
DAL20 has been observed flying several times a week in our tracking data. We've recorded 165 flights under this callsign.
Is flight DAL20 usually on time?
Across recent flights, DAL20 arrives with an average 4-minute delay. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight DAL20?
DAL20 has been operated by 12 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track DAL20 live?
Yes. When DAL20 is currently airborne, the live tracker map above shows its real-time position from ADS-B broadcasts. If the map is empty, the flight is not currently in the air.