What is the cheapest airline that flies from Osaka Kansai Intl to Seattle/Tacoma Intl?

China Airlines, Philippine Airlines, and Asiana Airlines are the most popular carriers operating from Osaka Kansai Intl to Seattle/Tacoma Intl

What airlines fly to Seattle?

Asiana Airlines, Air Canada and ANA are the top three most popular airlines that fly to Seattle from Osaka Kansai Intl Airport according to our data. Asiana Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 3 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Osaka Kansai Intl Airport to Seattle/Tacoma Intl Airport?

Prices for flights from Osaka Kansai Intl Airport to Seattle/Tacoma Intl Airport refresh daily.

How old do you have to be to fly from Osaka Kansai Intl Airport to Seattle/Tacoma Intl Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Osaka Kansai Intl Airport to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$420 Cheap Flights from Osaka Kansai Intl Airport to Seattle in 2025

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Find the cheapest flights from Osaka Kansai Intl Airport to Seattle

Round-trip

One-way

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Osaka Kansai Intl Airport to Seattle.

1:35 pm - 9:18 amKIX-SEA

35h 43m2 stops

5:35 am - 8:30 pmSEA-KIX

22h 55m2 stops

$709

Find Deal

Sat, May 10 - Sat, May 17

1:25 pm - 4:10 pmKIX-SEA

18h 45m1 stop

1:15 am - 12:15 pmSEA-KIX

19h 00m1 stop

$905STARLUX Airlines

Find Deal

Sat, May 10 - Fri, May 16

10:20 am - 7:15 pmKIX-SEA

24h 55m1 stop

11:35 pm - 7:40 pmSEA-KIX

28h 05m1 stop

$975Philippine Airlines

Find Deal

Fri, May 9 - Fri, May 16

10:50 am - 12:45 pmKIX-SEA

17h 55m1 stop

2:30 pm - 9:40 amSEA-KIX

27h 10m1 stop

$1,004Asiana Airlines

Find Deal

Wed, Jul 9 - Tue, Jul 22

5:30 pm - 2:25 pmKIX-SEA

12h 55m1 stop

4:30 pm - 9:50 pmSEA-KIX

13h 20m1 stop

$1,024ANA

Find Deal

Sun, Aug 3 - Sun, Aug 24

6:35 pm - 2:25 pmKIX-SEA

11h 50m1 stop

4:30 pm - 10:20 pmSEA-KIX

13h 50m1 stop

$1,047ANA

Find Deal

Sat, Aug 2 - Sun, Aug 24

7:10 pm - 12:45 pmKIX-SEA

33h 35m1 stop

2:15 pm - 9:40 amSEA-KIX

27h 25m1 stop

$1,067Asiana Airlines

Find Deal

Thu, Aug 21 - Mon, Sep 8

3:20 pm - 7:15 pmKIX-SEA

19h 55m1 stop

11:35 pm - 2:20 pmSEA-KIX

22h 45m1 stop

$1,118Philippine Airlines

Find Deal

Wed, Aug 20 - Wed, Sep 3

6:05 pm - 11:10 amKIX-SEA

33h 05m2 stops

10:00 am - 4:25 pmSEA-KIX

14h 25m1 stop

$1,415Air Canada

Find Deal

Tue, Aug 5 - Wed, Aug 27

6:05 pm - 11:10 amKIX-SEA

33h 05m2 stops

10:00 am - 4:25 pmSEA-KIX

14h 25m1 stop

$1,482Air Canada

Find Deal

Tue, Aug 5 - Fri, Aug 22

STARLUX Airlines flights from Osaka Kansai Intl Airport to Seattle

Our best STARLUX Airlines deals on Osaka Kansai Intl Airport to Seattle flight tickets

STARLUX Airlines

May 10

KIX1:25 pmOsaka Kansai Intl

18h 45m

1 stop

SEA4:10 pmSeattle/Tacoma Intl

May 16

SEA1:15 amSeattle/Tacoma Intl

19h 00m

1 stop

KIX12:15 pmOsaka Kansai Intl

$905

Find similar

STARLUX Airlines

May 9

KIX1:25 pmOsaka Kansai Intl

18h 45m

1 stop

SEA4:10 pmSeattle/Tacoma Intl

May 15

SEA1:15 amSeattle/Tacoma Intl

19h 00m

1 stop

KIX12:15 pmOsaka Kansai Intl

$922

Find similar

STARLUX Airlines

Aug 21

KIX3:10 pmOsaka Kansai Intl

17h 25m

1 stop

SEA4:35 pmSeattle/Tacoma Intl

Sep 7

SEA1:15 amSeattle/Tacoma Intl

19h 00m

1 stop

KIX12:15 pmOsaka Kansai Intl

$947

Find similar

Philippine Airlines flights from Osaka Kansai Intl Airport to Seattle

Our best Philippine Airlines deals on Osaka Kansai Intl Airport to Seattle flight tickets

Philippine Airlines

May 9

KIX10:20 amOsaka Kansai Intl

24h 55m

1 stop

SEA7:15 pmSeattle/Tacoma Intl

May 16

SEA11:35 pmSeattle/Tacoma Intl

28h 05m

1 stop

KIX7:40 pmOsaka Kansai Intl

$975

Find similar

Philippine Airlines

Aug 20

KIX3:20 pmOsaka Kansai Intl

19h 55m

1 stop

SEA7:15 pmSeattle/Tacoma Intl

Sep 3

SEA11:35 pmSeattle/Tacoma Intl

22h 45m

1 stop

KIX2:20 pmOsaka Kansai Intl

$1,118

Find similar

Philippine Airlines

Aug 1

KIX3:20 pmOsaka Kansai Intl

19h 55m

1 stop

SEA7:15 pmSeattle/Tacoma Intl

Aug 22

SEA11:35 pmSeattle/Tacoma Intl

22h 45m

1 stop

KIX2:20 pmOsaka Kansai Intl

$1,119

Find similar

How to get the cheapest flight ticket from Osaka Kansai Intl Airport to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Seattle?

In general, February is the cheapest month to fly from Osaka Kansai Intl Airport to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $738. If you don’t want to visit Seattle in February, then you should wait until March to fly from Osaka Kansai Intl Airport, when ticket prices are also cheap, with an average price of $868.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Osaka Kansai Intl Airport is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $916. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from Osaka Kansai Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,184.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Osaka Kansai Intl Airport in the morning is the least expensive time of day to depart. momondo users have found prices as low as $1,034 when looking at flights departing in the morning. Flights to Seattle are more costly in the afternoon, with an average ticket price of $1,134. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Osaka Kansai Intl Airport to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Osaka Kansai Intl Airport to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Osaka Kansai Intl Airport to Seattle (KIX to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Osaka Kansai Intl Airport to Seattle

Best Price Found	$420
Fastest flight time	11h 50m
Direct flights	None
Airports in Seattle	1 airport

The best one-way flight to Seattle from Osaka Kansai Intl Airport in the past 72 hours is $420. The best round-trip flight deal from Osaka Kansai Intl Airport to Seattle found on momondo in the last 72 hours is $709.

The fastest flight from Osaka Kansai Intl Airport to Seattle takes 11h 50m

There are no direct flights from Osaka Kansai Intl Airport to Seattle. Popular non-direct route for this connection is Osaka Kansai Intl Airport - Seattle/Tacoma Intl Airport.

There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

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How far is Osaka Kansai Intl to Seattle/Tacoma Intl by plane?
The distance between Osaka Kansai Intl and Seattle/Tacoma Intl is about 5017.2 mi. By plane, this route typically takes 11h 50m.
When did momondo last update prices for flights from Osaka Kansai Intl Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Osaka Kansai Intl Airport to Seattle/Tacoma Intl Airport refresh daily.
How many operators does momondo search for flights from Osaka Kansai Intl Airport to Seattle/Tacoma Intl Airport?
There are 3 operators available for flights from Osaka Kansai Intl Airport to Seattle/Tacoma Intl Airport as of April 2025.
How old do you have to be to fly from Osaka Kansai Intl Airport to Seattle/Tacoma Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Osaka Kansai Intl Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Osaka Kansai Intl Airport to Seattle?
momondo data reveals that the most frequently booked airline on the route from Osaka Kansai Intl Airport to Seattle is Asiana Airlines, representing 40% of all bookings. The subsequent popular airlines are Air Canada at 38% and ANA at 21%.

Best airlines flying from Osaka Kansai Intl Airport to Seattle

Compare and see reviews for airlines that fly from Osaka Kansai Intl Airport to Seattle with momondo

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom $838	Free Cancellation	Rating 7.0 9,029 reviews	Search Air Canada flights
Asiana Airlines	PriceFrom $852	Free Cancellation	Rating 8.2 438 reviews	Search Asiana Airlines flights
ANA	PriceFrom $1,863	Free Cancellation	Rating 8.3 830 reviews	Search ANA flights

Leavenworth

Tacoma

SeaTac

Ocean Shores

Olympia

Kent

Renton

Federal Way

Tukwila

Puyallup

Kirkland

Lakewood

Lynnwood

Fife

Shoreline

Marysville

Centralia

Redmond

Cle Elum

Lacey

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Why should I use momondo to find a flight deal from Osaka to Seattle?

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Can I find flights from Osaka to Seattle with flexible booking policies on momondo?

Yes. All flights to Seattle from Osaka on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Osaka to Seattle?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Osaka to Seattle.

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Yes. momondo can track prices for Osaka to Seattle flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.