DL9971Delta Air Lines · HND → SEA
live · 31m ago
Route confirmed Delta Air Lines

DL9971 TokyoHND SeattleSEA

DL9971 by Delta Air Lines flies from Tokyo (HND) to Seattle (SEA).

Right nowNext departure tomorrow Operates daily
16:25

scheduled from HND

The route today

live boards
HNDTokyoOn-time likelyHND delay board →
SEASeattleHigh 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
2.1%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 HND

Forecast

Sat 14 Nov, local date

High20°Clikely 18°C to 21°C
Low13°Clikely 12°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 SEA

Forecast

Sat 14 Nov, local date

High14°Clikely 13°C to 16°C
Low10°Clikely 8°C to 11°C
  • 92% 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
DL166departs 16:25

If DL9971 is cancelled, these are the other Delta Air Lines nonstop flights 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 DL9971 actually runs

Pro Flight Search has tracked every published board update for DL9971 across the HND and SEA boards: schedule changes, gate pushes and actual clocks. Combined risk score: 33.0/100. Based on airport operations, weather, and cached board history at HND and SEA.

The verdict above is that record speaking, so it reflects how DL9971 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around DL9971? 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: DL9971 Tokyo to Seattle on-time performance, measured from the HND and SEA airport boards.

Canonical URL
https://proflightsearch.com/flight/DL9971
How we measure this →