| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jun 15 | SEA | LHR | 15:20 | 08:25 |
Delayed
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Delta Air Lines Flight DL9920 connects Seattle, United States to London, United Kingdom, taking off from Seattle Tacoma International Airport SEA and landing at London Heathrow Airport LHR.
How long is the DL9920 flight from Seattle to London?
The average flight time from Seattle to London is 9 hours and 5 minutes. The flight distance is 7701 km / 4785 miles and the average flight speed is 848 km/h / 527 mph.
What is the On-Time Performance (OTP) of Delta Air Lines Flight DL9920 Seattle to London?
The Airportia On-Time Performance Rating for Delta Air Lines Flight DL9920 is 3.3/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight DL9920 arriving at?
Flight DL9920 arrives at London Heathrow Airport (LHR) Terminal 3.
When was the latest DL9920 flight?
The latest flight took off on Tuesday, June 16th, 2026 with the flight status being En-Route on 08:25.
How else can the flight DL9920 be referenced as?
This Delta Air Lines flight can also be referenced as DAL9920, DL 9920, DAL 9920.
How often is flight DL9920 delayed?
On average, 100% of all DL9920 flights are delayed. The average delay is 100 minutes.
Can I get compensation for my delayed or cancelled DL9920 flight or baggage issues?
If your DL9920 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.
See our DL9920 Flight Tracker above for more details.
Other flights departing from Seattle SEA: TK214, UA341, EM4695, EM4657
Other flights arriving at London LHR: BA427, BA841, WB712, VS186
All flights connecting Seattle SEA to London LHR.