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$636+ 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 1/25. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SDJ
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap 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 December 12, 2025.

This Asiana Airlines deal was found by Cheapflights users on 12/11. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2712:10 amSEA - SDJ
1 stop18h 35mAsiana Airlines
Mon 1/1212:45 pmSDJ - SEA
1 stop18h 10mAsiana Airlines
Deal found 12/11$1,386
This American Airlines deal was found by Cheapflights users on 12/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2912:10 pmSEA - SDJ
2 stops27h 25mMultiple Airlines
Mon 1/129:10 amSDJ - SEA
2 stops17h 45mMultiple Airlines
Deal found 12/10$1,461
This EVA Air deal was found by Cheapflights users on 12/10. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2812:10 amSEA - SDJ
1 stop21h 15mEVA Air
Mon 1/124:15 pmSDJ - SEA
1 stop18h 55mEVA Air
Deal found 12/10$1,570
This EVA Air deal was found by Cheapflights users on 12/10. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2712:10 amSEA - SDJ
1 stop21h 15mEVA Air
Mon 1/124:15 pmSDJ - SEA
1 stop18h 55mEVA Air
Deal found 12/10$1,610
This Japan Airlines deal was found by Cheapflights users on 12/11. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2912:10 pmSEA - SDJ
2 stops27h 25mJapan Airlines
Mon 1/129:10 amSDJ - SEA
2 stops17h 45mJapan Airlines
Deal found 12/11$1,631
This American Airlines deal was found by Cheapflights users on 12/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2812:10 pmSEA - SDJ
2 stops33h 15mMultiple Airlines
Mon 1/127:35 amSDJ - SEA
2 stops19h 20mMultiple Airlines
Deal found 12/10$2,106

Find 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 December 12, 2025.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$636
(SmartFares)
Provider with most accurate pricing for Seattle/Tacoma Intl-Sendai flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Sendai flights.
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From Seattle/Tacoma Intl to Sendai
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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 December 12, 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 1/25

12:10 am-11:45 am

1 stop18h 35m

Sendai

Mon 2/2

12:45 pm-1:55 pm

1 stop18h 10m

$636

SeattleSendai

SEA - SDJ

SEASDJ

Seattle/Tacoma Intl

Mon 1/26

3:45 pm-3:40 pm

2 stops30h 55m

Sendai

Mon 2/2

8:05 am-1:20 pm

2 stops22h 15m

$646

SeattleSendai

SEA - SDJ

SEASDJ

Seattle/Tacoma Intl

Mon 1/26

3:45 pm-9:00 am

2 stops24h 15m

Sendai

Mon 2/2

12:45 pm-1:55 pm

1 stop18h 10m

$895

SeattleSendai

SEA - SDJ

SEASDJ

Seattle/Tacoma Intl

Sat 1/24

11:30 pm-2:25 pm

1 stop21h 55m

Sendai

Tue 1/27

4:15 pm-6:10 pm

1 stop18h 55m

$950

SeattleSendai

SEA - SDJ

SEASDJ

Seattle/Tacoma Intl

Sat 1/24

12:30 pm-8:35 am

2 stops27h 05m

Sendai

Tue 1/27

7:35 am-9:55 am

2 stops19h 20m

$1,187

SeattleSendai

SEA - SDJ

SEASDJ

Seattle/Tacoma Intl

Sat 12/27

12:10 am-11:45 am

1 stop18h 35m

Sendai

Mon 1/12

12:45 pm-1:55 pm

1 stop18h 10m

$1,386

SeattleSendai

SEA - SDJ

SEASDJ

Seattle/Tacoma Intl

Mon 12/29

12:10 pm-8:35 am

2 stops27h 25m

Sendai

Mon 1/12

9:10 am-9:55 am

2 stops17h 45m

$1,461

SeattleSendai

SEA - SDJ

SEASDJ

Seattle/Tacoma Intl

Fri 1/23

12:10 am-11:45 am

1 stop18h 35m

Sendai

Tue 1/27

12:45 pm-9:12 pm

2 stops25h 27m

$1,502

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

  • Most accurate provider: When it comes to deals on Seattle-Sendai flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Seattle-Sendai flight deals on Cheapflights vs. Expedia 90-95% of the time. Price accuracy is based on data collected from Seattle-Sendai flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Sendai flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Sendai flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 and ANA fly from Seattle to Sendai in about 18h 35m. The time it takes to get you to your destination can typically vary by up to 12h 20m. 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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