Checking a Narita to Seattle flight status comes down to two things: the flight number, and the arriving airport's board. Narita (NRT) to Seattle-Tacoma (SEA) is a long North Pacific crossing of roughly 7,655 km great-circle, so most of the leg happens over open water with no land underneath it. If you are following the aircraft on a tracking map and the symbol stops moving once it is out over the water, that is normal. Community tracking maps are built from radio receivers sitting on the ground, and the middle of an ocean has none. Below is what the schedule tells you, and what to check while the map is quiet.
What to check for a Narita to Seattle flight status
Start with the flight number on the booking, not the city pair. One Tokyo to Seattle service can be sold under more than one number depending on which airline sold you the seat, and the number that matters for status is the one the operating carrier uses.
With that number, there are two reliable places to look. The operating airline's own status page is the first, because the airline is the party that knows when the aircraft pushed back and what time it now expects to land. The arrivals board at Seattle-Tacoma is the second, and it is the one to trust in the last hour, since it reflects what the arriving airport is actually planning for.
A map position is the least reliable of the three on this route, and not because anyone built the map badly. For a good part of the crossing there is nothing for a map to draw. Use it for the departure, use it again near the North American coast, and use the board in between.
NRT to SEA at a glance
| Detail | NRT to SEA |
|---|---|
| Departure airport | Narita International Airport (NRT), Narita, Japan |
| Arrival airport | Seattle-Tacoma International Airport (SEA), Seattle, United States |
| Great-circle distance | Roughly 7,655 km |
| Direction | Eastbound across the North Pacific, with the return as SEA to NRT |
That distance is the great-circle figure between the two airport coordinates, so it is the shortest line on a globe rather than the track any aircraft flies. Real North Pacific routings bend with the day's winds, which makes the flown distance longer, sometimes by a lot on a westbound return.
The route and airport reference data on our NRT to SEA route page comes from the open OurAirports and OpenFlights datasets, which describe reference geography rather than today's timetable. For departure times, aircraft type and which carriers are flying the pair this season, read the airline, not a reference dataset.
Check which Tokyo airport your flight uses
Tokyo has two international airports, Narita (NRT) and Haneda (HND), and they are separate places with separate boards. This trips up more people than the ocean does. A search for Narita brings up Narita results, and plenty of the travellers running that search are holding a Haneda ticket.
The fix takes ten seconds. Read the three-letter airport code on the booking rather than the city name printed above it. If it says HND, the Narita airport page and every Narita arrivals board are the wrong ones to be watching, and a friend heading to the wrong terminal building is a much longer problem to solve than a stalled map symbol.
Why the middle of the North Pacific goes quiet on a tracking map
Community flight tracking works because volunteers run small receivers that pick up broadcasts from aircraft overhead and feed them to a shared network. Over land, near cities, that network is dense, and the resulting map is close to complete. Over open ocean, nobody lives there, so nobody has a receiver there, and the network hears nothing at all.
The North Pacific is one of the widest stretches of that nothing on any major corridor. An NRT to SEA flight passes out of range of the receivers near the coast it left, spends hours where no receiver can hear it, then reappears once it is back within range of receivers on land.
Two things follow from that, and both are worth knowing before you stand in an arrivals hall. A symbol that has not moved for two hours does not mean an aircraft is in trouble, it means no receiver has heard it recently. And a symbol that pops back into existence near the coast is the same aircraft you were watching, not a new flight.
What to do when the map stops updating
Switch sources rather than refreshing the same one. Check the operating airline's status page for your flight number, because that page carries the airline's own estimate and does not depend on the receiver network you were watching.
Then move to the SEA arrivals board once the flight is within a couple of hours of landing. That board carries the estimate the airport is working to, and it updates as the aircraft gets close enough for the picture to firm up.
One habit worth keeping: note the scheduled arrival time before the flight departs. When the map goes quiet, what you want to know is whether the estimate has moved, and you cannot tell without the original number.
Meeting a Narita to Seattle arrival at Sea-Tac
The time on an arrivals board is wheels-down, and an international arrival has a queue behind it. Immigration, baggage reclaim and customs all sit between the landing time you are watching and the moment somebody walks out into the arrivals hall.
So the board time is a starting gun, not a meeting time. If you are driving to Sea-Tac, treat the landing time as the point at which you should be on your way rather than the point at which you should be standing at the barrier.
How TrackMyWings™ helps
TrackMyWings™ is a flight-tracking platform in development, India-first in go-to-market with no region ruled out of scope. A private beta shipped on 2026-08-24, Android only, on the Play internal testing track. Public launch has no fixed date, because it is gated on trade-mark clearance and on the app being good enough to hand to strangers.
The planned live flight tracking view will show what ground receivers can hear, which on a North Pacific crossing means coverage near land at either end and thin to absent coverage in the middle. We would rather say that here than let a map imply otherwise.
FAQ
Why does my Narita to Seattle flight disappear over the Pacific?
Because community tracking depends on ground receivers, and there are none in the middle of an ocean. The aircraft is not missing. The map simply has nothing to draw from until the flight is back within range of a receiver on land.
Is NRT the same as Tokyo Haneda?
No. Narita (NRT) and Haneda (HND) are two separate international airports serving Tokyo, with separate boards and separate ground transport. Check the airport code on your booking.
How long is the Narita to Seattle flight?
The great-circle distance is roughly 7,655 km. Block time varies with the aircraft type and the winds on the day, and westbound legs against the prevailing winds usually run longer, so take the number from the airline's page for your flight rather than from a route average.
Can I see the aircraft's live position for the whole crossing?
Not on a ground-receiver network. Expect position updates near land at each end, with a long quiet stretch in between where the schedule and the airline's own status page are what you have.
Sources
No external sources were used in this post. The route and airport reference data on our directory pages, including the great-circle distance quoted above, comes from the open OurAirports and OpenFlights datasets (OurAirports public domain, OpenFlights under ODbL 1.0). It is a point-in-time snapshot of reference geography rather than a live timetable.
Get TrackMyWings Early Access
Real-time flight tracking, gate change alerts, and family sharing: launching soon.