$393 Cheap Flights from Seattle (SEA) to Tokyo (HND)

Popular airlines from Seattle-Tacoma International Airport (SEA) to Haneda Airport (HND)

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Cheap Flights from Seattle to Tokyo (SEA-HND)

Prices were available within the past 7 days and start at $393 for one-way flights and $720 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Asiana Airlines
Asiana Airlines
Delta
Philippine Airlines
Alaska Airlines
Korean Air
Hawaiian Airlines
United
All Nippon Airways
Japan Airlines

Find the cheapest month to fly from Seattle (SEA) to Tokyo (HND)

September is typically the cheapest month to fly

From $698 - $1,142 per traveler.

Graph displaying average flight prices per month

Alternative airports near Tokyo

Prices were available within the past 7 days. Prices and availability are subject to change.

Flights from Seattle (SEA) to Tokyo (HND)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Haneda
Airlines serving
Air Canada, Air France, Alaska Airlines, All Nippon Airways, American Airlines, Asiana Airlines, Cathay Pacific, Delta, Emirates, Hainan Airlines, Hawaiian Airlines, Japan Airlines, KLM, Korean Air, Lufthansa, Philippine Airlines, Qatar Airways, Singapore Airlines, Turkish Airlines, United
Roundtrip price
$719
Distance
4791 mi
Average flight time
26 hours 27 mins

Seattle to Tokyo Flights

The cheapest times to fly from Seattle to Tokyo

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Tokyo are during the month of November. You can find some of the cheapest flights from Seattle to Tokyo with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Tokyo

Sunday is one of the best days to book for cheap flights from Seattle to Tokyo: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seattle to Tokyo

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Tokyo in 2025. You can also book with separate airlines for your outbound and return journeys, from $393 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Tokyo flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Tokyo airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Haneda Airport (HND) cost?
Cheap round-trip flights from Seattle - Tacoma Intl. Airport (SEA) to Haneda Airport (HND) start at $755. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a United flight leaving SEA on August 11 2025 and touching down at HND. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from SEA to HND?
The cheapest flights from SEA to HND are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to Haneda Airport (HND)?
You can travel nonstop from Seattle - Tacoma Intl. Airport (SEA) to Haneda Airport (HND) on an ANA flight.
What is the cheapest airline that flies from SEA to HND?
Jet off from SEA to HND with United. This airline currently has the cheapest one-way ticket on this route, starting from $395. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SEA on September 29 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Haneda Airport (HND)?
Each day on average, 2 direct flights operate from Seattle - Tacoma Intl. Airport (SEA) to Haneda Airport (HND). Select the departure time that fits your schedule best.
What are the most popular departure times for flights from Seattle - Tacoma Intl. Airport (SEA) to Haneda Airport (HND)?
The 11 AM departures from SEA to HND are typically the busiest. Greater demand means you'll likely pay more for these departures. If you want to save money, book during off-peak hours.
What day of the week has the most flights from SEA to HND?
Jet off on a Friday if you're looking for the best choice of flights from Seattle - Tacoma Intl. Airport (SEA) to Haneda Airport (HND).
What is the earliest flight from Seattle - Tacoma Intl. Airport (SEA) to Haneda Airport (HND)?
Seattle - Tacoma Intl. Airport (SEA)'s first flight to Haneda Airport (HND) departs at approximately 11:30AM UTC-8. With a total travel time of 10h 50m, you'll arrive at around 3:20PM UTC+9.
How long does it take to fly from Seattle - Tacoma Intl. Airport (SEA) to Haneda Airport (HND)?
It takes roughly 10 hours and 40 minutes to cover the 4,800 mi from SEA to HND.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Haneda Airport (HND)?
Choose a flight from Seattle - Tacoma Intl. Airport (SEA) to Haneda Airport (HND) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures after this time have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Tokyo from Seattle - Tacoma Intl. Airport (SEA)?
Board a direct flight from Seattle - Tacoma Intl. Airport (SEA) to Tokyo and land at Haneda Airport (HND). Another convenient gateway to the city is Narita Intl. Airport (NRT).
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Haneda Airport (HND) last-minute?
Last-minute fares from SEA to HND are generally more expensive. For the lowest prices, start searching for flights as soon as possible. That being said, if you're flexible with your travel dates, it's possible to land a cheap fare right before your trip.
Is it cheaper to book a SEA to HND flight and hotel package?
Compared with arranging flights and hotels separately, booking a SEA to HND flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one easy place will take the stress out of planning your trip. Just pick your flights and choose from our extensive range of hotels, then personalize your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Haneda Airport (HND)?
If you booked your SEA to HND flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more details.

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