Narita (NRT) to Seattle (SEA)
Flight time
≈ 10h 19m
Bearing
46° NE
Narita (NRT) to Seattle (SEA) is 4,757 miles (7,655 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies NRT–SEA
Filed traffic dataIn May 2026, Alaska Airlines operated the most departures, one of 2 carriers flying nonstop NRT–SEA; the Airbus A330-200 was the most common aircraft at 50% of departures; flights ran 84% full.
Departures
124
May 2026
Seats
29,326
both directions
Passengers
24,592
both directions
Load factor
83.9%
RPM ÷ ASM
Who flies NRT–SEA?
Alaska Airlines operated the most nonstop NRT–SEA departures in May 2026 (62), one of 2 carriers on the route.
- AS
62 departures · 17,236 seats
Share of departures50.0%83.4%
Load
- JL
Japan Airlines
62 departures · 12,090 seats
Share of departures50.0%84.5%
Load
What plane flies NRT–SEA?
In May 2026, the Airbus A330-200 flew 50% of NRT–SEA departures — more than any other aircraft type.
- Airbus A330-200
62 departures · 83.4% load
50.0% - Boeing 787-9
62 departures · 84.5% load
50.0%
How has NRT–SEA traffic changed?
Nonstop NRT–SEA departures rose from 120 in June 2025 to 124 in May 2026.
Monthly nonstop NRT–SEA traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
120 departures · 24,241 passengers
85.4%
Load
July 2025
124 departures · 23,805 passengers
81.2%
Load
August 2025
124 departures · 23,881 passengers
81.5%
Load
September 2025
120 departures · 22,326 passengers
78.7%
Load
October 2025
124 departures · 25,034 passengers
85.4%
Load
November 2025
118 departures · 23,244 passengers
83.5%
Load
December 2025
122 departures · 21,882 passengers
76.1%
Load
January 2026
124 departures · 23,356 passengers
76.7%
Load
February 2026
111 departures · 21,825 passengers
79.6%
Load
March 2026
124 departures · 27,899 passengers
90.9%
Load
April 2026
118 departures · 24,475 passengers
85.2%
Load
May 2026
124 departures · 24,592 passengers
83.9%
Load
By direction
Each direction is filed separately — they rarely match.
NRT → SEA
79.9% full
62 departures · 11,718 passengers
SEA → NRT
87.8% full
62 departures · 12,874 passengers
Nonstop NRT–SEA traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through May 2026; filings from 2025. Public domain (US Government work).
The airports
Narita
JP
Narita International Airport
Coordinates
35.77°N, 140.39°E
Hemisphere
N · E
Frequently asked
How far is Narita (NRT) from Seattle (SEA)?
NRT to SEA is 4,757 miles (7,655 km / 4,134 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from NRT to SEA?
A nonstop covers the 4,757-mile great-circle distance in roughly 10h 19m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies NRT–SEA?
In May 2026, the Airbus A330-200 flew the largest share of departures (50.0%), followed by the Boeing 787-9 (50.0%).
What mileage do I earn flying NRT–SEA?
Distance-based programs credit off the 4,757-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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