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$770+ Cheap flights from Seattle (SEA) to Sendai (SDJ)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SDJ
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Seattle to Sendai

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Sendai (SDJ). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$770
(Asiana Airlines)
From Seattle/Tacoma Intl to Sendai
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Find flight deals from Seattle to Sendai

Cheapest flights from Seattle to Sendai
Explore the most affordable flight options available from Seattle to Sendai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This STARLUX Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure STARLUX Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2512:45 amSEA - SDJ
1 stop23h 15mSTARLUX Airlines
Sun 11/25:25 pmSDJ - SEA
1 stop38h 40mSTARLUX Airlines
Deal found 9/11$961

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Sendai that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Seattle to Sendai that are best for you.

Fly from

Seattle

Fly to

Sendai

Route

Depart

Return

Price

SeattleSendai

SEA - SDJ

SEASDJ

Seattle/Tacoma Intl

Sun 1/18

12:10 am-11:40 am

1 stop18h 30m

Sendai

Wed 1/21

12:40 pm-1:55 pm

1 stop18h 15m

$770

SeattleSendai

SEA - SDJ

SEASDJ

Seattle/Tacoma Intl

Mon 1/19

12:30 pm-8:35 am

2 stops27h 05m

Sendai

Wed 1/21

11:20 am-9:55 am

2 stops15h 35m

$947

SeattleSendai

SEA - SDJ

SEASDJ

Seattle/Tacoma Intl

Sat 10/25

12:45 am-4:00 pm

1 stop23h 15m

Sendai

Sun 11/2

5:25 pm-4:05 pm

1 stop38h 40m

$961

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Best time to book a flight from Seattle to Sendai

Have a flexible travel schedule? Discover the best time to fly to Sendai from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Sendai. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Seattle to Sendai?

    Airlines like Asiana Airlines, Japan Airlines, and STARLUX Airlines fly from Seattle to Sendai in about 18h 30m. The time it takes to get you to your destination can typically vary by up to 8h 35m. Seattle and Sendai are separated by a distance of 4620 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Seattle to Sendai that include hotel bookings?

    Yes. In addition to deals on Seattle to Sendai flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Sendai?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Sendai.

  • Can I find deals for business class flights from Seattle to Sendai?

    Yes. Cheapflights offers flight deals from Seattle to Sendai by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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