Seattle-Tacoma to Narita International
4757 miles great-circle distance, typically flown in 9h 58m with 8 airlines operating direct service from Seattle-Tacoma (SEA) to Narita International (NRT). Cheapest fares are usually in January (around $449 return), with peak prices in August (around $1347). Departures on a Tuesday tend to undercut weekend prices on this corridor.
Flying from Seattle-Tacoma
Seattle-Tacoma is Alaska Airlines' principal hub and Delta's growing Pacific Northwest base. The Link Light Rail Red Line runs from the airport's elevated station directly to Westlake in downtown Seattle in 38 minutes for $3.25 — possibly the easiest big-city transfer in the country. International long-haul has expanded sharply post-2023 with new direct service to Tokyo, Seoul, Frankfurt, London Heathrow and Auckland. Weather delays are rare; SEA is one of the most operationally reliable winter airports in the US.
Arriving in Tokyo
Tokyo Narita International is 60 km east of central Tokyo, with the Narita Express train reaching Tokyo Station in 53 minutes for ¥3,070. ANA, Japan Airlines, United, Delta and American operate the US-Tokyo corridor; Haneda (HND) increasingly handles new US-Tokyo capacity for shorter ground transfers. Cherry blossom season (late March–early April) is peak demand; January and August are the cheapest from US bases.
Who flies SEA to NRT?
| Airline | IATA | Flight time | Cabin |
| Alaska Airlines | AS | 9h 58m | Economy |
| Delta Air Lines | DL | 9h 58m | Economy |
| British Airways | BA | 9h 58m | Economy |
| Lufthansa | LH | 9h 58m | Economy |
| Korean Air | KE | 9h 58m | Economy |
| ANA | NH | 9h 58m | Economy |
| Japan Airlines | JL | 9h 58m | Economy |
| Emirates | EK | 9h 58m | Economy |
8 carriers fly direct on this corridor. Frequencies vary by season — summer and winter holiday peaks see additional flights.
Best time to fly SEA→NRT
Synthesised from 12-month price aggregates. Cheapest months in green, peak in red.
Estimated baseline. Prices update on a 30-day cadence as Travelpayouts data refreshes. Cheapest day-of-week typically Tuesday.
Seattle to Tokyo FAQs
Direct flights from Seattle-Tacoma (SEA) to Narita International (NRT) take approximately 9h 58m for the 4757-mile journey, plus 30–60 minutes of taxi, climb and descent. Total airport-to-airport time depends on cruise winds and air-traffic queueing on approach.
January is typically the cheapest month on this route, with one-way fares from $449. August is the peak — expect prices 2–3× higher. Book 4–8 weeks ahead for best fares; last-minute prices on this corridor rise sharply inside two weeks of departure.
8 carriers operate direct service from Seattle-Tacoma (SEA) to Narita International (NRT): Alaska Airlines, Delta Air Lines, British Airways, Lufthansa, Korean Air and 3 more. Frequencies vary by season and carrier — Alaska Airlines typically operates the highest weekly count on this corridor.
Visa-free for US passport holders up to 90 days. JESTA electronic authorisation phase-in expected by 2030. Always check travel.state.gov for the latest entry requirements before booking.
Narita International (NRT) is the primary international airport for Tokyo. Allow 30–60 minutes for the ground transfer by train, express bus, taxi or rideshare depending on traffic and time of day. See the airport's official website for current train and shuttle timetables.