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Cheap flights from Seattle to Osaka from C$ 609

SEA — OSA
30 Oct — 6 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Osaka

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Osaka

Mon 26/1011:25 a.m. -
1 stop26h 55m
Sun 1/119:15 p.m. -
1 stop28h 30m
Deal found 30/9C$ 1,257
Mon 26/1011:25 a.m. -
1 stop26h 55m
Fri 6/117:05 p.m. -
1 stop30h 40m
Deal found 30/9C$ 1,328
Wed 11/114:59 p.m. -
3 stops28h 46m
Wed 18/116:05 p.m. -
1 stop31h 40m
Deal found 26/9C$ 1,426
Mon 26/101:10 a.m. -
1 stop18h 25m
Thu 5/117:00 p.m. -
1 stop16h 10m
Deal found 30/9C$ 1,440
Wed 25/117:00 a.m. -
1 stop16h 45m
Thu 3/123:20 p.m. -
1 stop15h 00m
Deal found 25/9C$ 1,446
Mon 9/114:59 p.m. -
3 stops28h 46m
Tue 24/114:15 p.m. -
2 stops33h 30m
Deal found 29/9C$ 1,447
Tue 20/107:08 p.m. -
2 stops28h 02m
Fri 6/115:00 p.m. -
1 stop32h 45m
Deal found 28/9C$ 1,451
Tue 24/117:00 a.m. -
1 stop16h 45m
Fri 4/126:35 p.m. -
1 stop22h 09m
Deal found 25/9C$ 1,453
Mon 23/1112:30 p.m. -
1 stop15h 15m
Mon 30/112:15 a.m. -
1 stop26h 41m
Deal found 25/9C$ 1,456
Wed 30/912:50 p.m. -
1 stop36h 15m
Wed 7/102:15 a.m. -
1 stop24h 25m
Deal found 29/9C$ 1,458
Sun 25/109:05 a.m. -
1 stop15h 40m
Tue 3/116:35 p.m. -
2 stops17h 34m
Deal found 30/9C$ 1,460
Sun 25/107:00 a.m. -
2 stops20h 30m
Wed 4/116:35 p.m. -
1 stop16h 58m
Deal found 30/9C$ 1,464

Find flight deals from Seattle to Osaka

Round-trip from

C$ 1,257

One-way from

C$ 609

Popular in

December

Cheapest in

January

Average price

C$ 1,478
Cathay Pacific
  • Cathay Pacific
  • 26/10-1/11
  • 2 total stops
  • 55h 25m total
  • Seattle to Osaka
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Cathay Pacific
  • Cathay Pacific
  • 26/10-31/12
  • 1 total stop
  • 26h 55m total
  • Seattle to Osaka
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 42 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 73 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Seattle to Osaka that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleOsaka

SEA Seattle/Tacoma Intl - KIX Osaka Kansai Intl

SEAKIX

Seattle/Tacoma Intl

Mon 26/10

6:00 a.m.-4:45 p.m.

2 stops18h 45m

Osaka Kansai Intl

Wed 31/12

12:00 a.m.-7:00 a.m.

Nonstop0h 00m

C$ 684
Quickest round-trip

SeattleOsaka

SEA Seattle/Tacoma Intl - KIX Osaka Kansai Intl

SEAKIX

Seattle/Tacoma Intl

Sun 8/11

7:00 a.m.-4:45 p.m.

1 stop16h 45m

Osaka Kansai Intl

Wed 31/12

12:00 a.m.-7:00 a.m.

Nonstop0h 00m

C$ 685

SeattleOsaka

SEA Seattle/Tacoma Intl - KIX Osaka Kansai Intl

SEAKIX

Seattle/Tacoma Intl

Mon 9/11

6:30 p.m.-4:45 p.m.

2 stops29h 15m

Osaka Kansai Intl

Wed 31/12

12:00 a.m.-7:00 a.m.

Nonstop0h 00m

C$ 685

SeattleOsaka

SEA Seattle/Tacoma Intl - KIX Osaka Kansai Intl

SEAKIX

Seattle/Tacoma Intl

Sun 18/10

6:43 p.m.-2:50 p.m.

2 stops28h 07m

Osaka Kansai Intl

Wed 31/12

12:00 a.m.-7:00 a.m.

Nonstop0h 00m

C$ 689

SeattleOsaka

SEA Seattle/Tacoma Intl - KIX Osaka Kansai Intl

SEAKIX

Seattle/Tacoma Intl

Tue 20/10

4:35 p.m.-2:50 p.m.

2 stops30h 15m

Osaka Kansai Intl

Wed 31/12

12:00 a.m.-7:00 a.m.

Nonstop0h 00m

C$ 689

SeattleOsaka

SEA Seattle/Tacoma Intl - KIX Osaka Kansai Intl

SEAKIX

Seattle/Tacoma Intl

Mon 5/10

4:35 p.m.-2:50 p.m.

2 stops30h 15m

Osaka Kansai Intl

Wed 31/12

12:00 a.m.-7:00 a.m.

Nonstop0h 00m

C$ 689

SeattleOsaka

SEA Seattle/Tacoma Intl - KIX Osaka Kansai Intl

SEAKIX

Seattle/Tacoma Intl

Sun 25/10

7:00 a.m.-4:45 p.m.

1 stop17h 45m

Osaka Kansai Intl

Wed 31/12

12:00 a.m.-7:00 a.m.

Nonstop0h 00m

C$ 689

SeattleOsaka

SEA Seattle/Tacoma Intl - KIX Osaka Kansai Intl

SEAKIX

Seattle/Tacoma Intl

Sun 21/2

5:15 p.m.-4:45 p.m.

2 stops30h 30m

Osaka Kansai Intl

Wed 31/12

12:00 a.m.-7:00 a.m.

Nonstop0h 00m

C$ 689

SeattleOsaka

SEA Seattle/Tacoma Intl - KIX Osaka Kansai Intl

SEAKIX

Seattle/Tacoma Intl

Sun 14/2

3:50 p.m.-3:10 p.m.

2 stops30h 20m

Osaka Kansai Intl

Mon 22/2

6:05 p.m.-8:45 a.m.

1 stop31h 40m

C$ 1,372

SeattleOsaka

SEA Seattle/Tacoma Intl - KIX Osaka Kansai Intl

SEAKIX

Seattle/Tacoma Intl

Sun 14/2

3:50 p.m.-3:10 p.m.

2 stops30h 20m

Osaka Kansai Intl

Sun 21/2

7:05 p.m.-8:45 a.m.

1 stop30h 40m

C$ 1,372

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/9

Showing 1-10 of 19 resultsSorted by cheapest first
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Best time to book a flight from Seattle to Osaka

Have a flexible travel schedule? Discover the best time to fly to Osaka from Seattle with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Seattle to Osaka

What is the cheapest month to book a flight from Seattle to Osaka?

Currently, January is the cheapest month in which you can book a flight from Seattle to Osaka (average of C$ 1,031). Flying from Seattle to Osaka in December is currently the most expensive (average of C$ 1,956). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Seattle to Osaka?

Airfare is typical for this route at the moment.
Seattle to Osaka flights typically cost between C$ 1,143 and C$ 1,576 in January.
The cheapest round-trip price found within the last 5 days was C$ 1,257 on Cathay Pacific (14 Jan-20 Jan).

How far ahead should I book a flight from Seattle to Osaka?

The best time to book flights from Seattle to Osaka is 72 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Related info for your journey

  • What airport do you fly from for flights from Seattle to Osaka?

    For a flight from Seattle to Osaka, you will be flying from Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 18.4 km from the centre of the city. Seattle/Tacoma Intl is the only Seattle airport and it handles 0 outbound flights to Osaka per day. 0 airlines have flights to Osaka from Seattle/Tacoma Intl on a regular basis.

  • How long is the flight from Seattle to Osaka?

    A quick flight from Seattle to Osaka can take about 15h 15m. China Airlines provides one of the quickest options available for as low as C$ 1,456. Airlines will cover a distance of 8085 km. Both multi-stop and direct flights can be found to your destination and back.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Seattle to Osaka?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Osaka (average of C$ 1,031). Flying from Seattle to Osaka in December is currently the most expensive (average of C$ 1,956). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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