Asiana Airlines flights to Tokyo from Seattle

View S$637 flight on Sat, 17 Jan, 2026Opens in a new window
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Asiana Airlines flights from Seattle to Tokyo (SEA→NRT)

Prices were available within the past 7 days and start at S$637 for one-way flights and S$893 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Asiana Airlines
Thu, 5 Mar - Thu, 12 Mar
SEA
Seattle
NRT
Tokyo
S$893 Return, found 4 days ago
S$893
Return
found 4 days ago
Select Asiana Airlines flight, departing Thu, 5 Mar from Seattle to Tokyo, returning Thu, 12 Mar, priced at S$893 found 4 days ago

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

March is typically the cheapest month to fly

From S$732 - S$1,313 per traveller.
Seattle to Tokyo route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Narita Intl.
Airlines serving
Air Canada, All Nippon Airways, American Airlines, Asiana Airlines, China Airlines, Delta, EVA Airways, Hawaiian Airlines, Japan Airlines, Korean Air, Philippine Airlines, Singapore Airlines, United, WestJet
Popular airline
Air Canada
Distance
7611 km
Average flight time
27 hours 27 mins

Frequently asked questions

How much is an Asiana Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to Narita Intl. Airport (NRT)?
Set the "Price (lowest to highest)" filter on Expedia to search for cheap Asiana Airlines round-trip flights from S$893 from SEA to NRT. Affordable one-way options from S$637 are available too.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from SEA to NRT with Asiana Airlines?
Browse for return or one-way flights to Tokyo in January or February. You could find an affordable fare with Asiana Airlines during these off-peak travel months.
Does Asiana Airlines fly nonstop from Seattle - Tacoma Intl. Airport (SEA) to Narita Intl. Airport (NRT)?
Click on our "Nonstop" filter when looking for direct Asiana Airlines flights from SEA to NRT. It's also an easy way to compare other airlines servicing the same direct route.
What airports does Asiana Airlines fly into in Tokyo?
Asiana Airlines flights from Seattle - Tacoma Intl. Airport (SEA) to Tokyo come in to land at Narita Intl. Airport (NRT). This is the main gateway to this destination.
What kind of luggage can I take on an Asiana Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to Narita Intl. Airport (NRT)?
For checked luggage, passengers can bring 2 checked-in bags weighing up to 23 kgs with dimensions not exceeding 157 centimetres. You can also travel with 1 cabin bag in the cabin when flying standard economy from SEA to NRT with Asiana Airlines. This carry-on has to weigh less than 10 kgs and be no bigger than 53 centimetres x 38 centimetres x 18 centimetres. Going over these limits can mean extra fees, so read Asiana Airlines's baggage allowance guidelines before you start packing.
Can I change or cancel my Asiana Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to Narita Intl. Airport (NRT)?
You can usually reschedule or cancel your flight, although there may be additional fees if your booking was made over 24 hours ago. Want to keep your options open? Make use of our "Changes included" and "No cancel fee" filters to find flights that won't charge extra if you have to adjust your plans. To modify your itinerary, visit "Trips," select your flight and click on "Manage Booking" for more details.
*Available to Expedia members.