DL166Delta Air Lines · HND → SEA
live · 12m ago
Route confirmed Delta Air Lines

DL166 TokyoHND · 16:25 SeattleSEA · 08:29

DL166 by Delta Air Lines flies from Tokyo (HND) to Seattle (SEA) for the Fri, Nov 13 departure.

Right nowScheduled · today
16:25

departs HND · on schedule

Typical gate push−1 minmedian posted departure

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
11-12
−10 gate
11-11
−2 gate
11-10
+12 gate
11-09
−3 gate
11-08
−4 gate
11-07
−1 gate
11-06
+0 gate

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The last 30 days

arrival outcome per operation

0 cancelled · 8 operations tracked

The route today

live boards
HNDTokyoOn-time likelyHND delay board →
SEASeattleModerate riskSEA delay board →
HND→SEAevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
36%Chance of 15+ min delay
2.2%Chance of cancellation
+7 minTypical airport delay in this weather

Conditions at HND and SEA are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records under conditions like today's, over the last 90 days.

Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →

Tomorrow at Tokyo

Forecast

Sat 14 Nov, local date

High20°Clikely 18°C to 21°C
Low12°Clikely 11°C to 14°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

Tomorrow at Seattle

Forecast

Fri 13 Nov, local date

High14°Clikely 13°C to 16°C
Low10°Clikely 8°C to 12°C
  • 91% chance of rain

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other Tokyo to Seattle flights today

same route · Delta Air Lines
DL9896departs 13:30

If DL166 is cancelled, this is the other Delta Air Lines nonstop flight from Tokyo to Seattle on the same day, with scheduled departure times in HND local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →

How DL166 actually runs

Pro Flight Search has tracked every published board update for DL166 across the HND and SEA boards: schedule changes, gate pushes and actual clocks. Usually departs on time. Based on 8 confirmed departures · 7/8 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how DL166 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocks

Board log

scheduled → actual, per operation
11-13HND 16:25SEA 08:29
11-12HND 16:25 16:15 (−10)SEA 08:29
11-11HND 16:25 16:23 (−2)SEA 08:29
11-10HND 16:25 16:37 (+12)SEA 08:29
11-09HND 16:25 16:22 (−3)SEA 08:29
11-08HND 16:25 16:21 (−4)SEA 08:29
11-07HND 16:25 16:24 (−1)SEA 08:29
11-06HND 16:25 (+0)SEA 08:29
11-05HND 16:25 18:03 (+98)SEA

Board clocks recorded as HND and SEA published them.

Planning around DL166? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search: DL166 Tokyo to Seattle on-time performance, measured from the HND and SEA airport boards.

Canonical URL
https://proflightsearch.com/flight/DL166
How we measure this →