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Kansai Intl

$354+ Cheap flights from Washington to Kansai Intl (KIX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — KIX
jul. 1 — jul. 81
mar. 7/1
mar. 7/8
1 adult, Economy
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Cheap flight deals from Washington to Kansai Intl

Keep the following information in mind while searching for Washington to Kansai Intl flight deals. Data was last updated junio 26, 2025.

Round-trip from

$664
(oojo)

One-way from

$361
(lastminute.com)

Popular in

December

Cheapest in

February

Average price

$1,178
From Washington to Osaka Kansai Intl
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One-way flight from Washington to Osaka Kansai Intl
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Highest demand for flights based on searches. 5% potential increase in price ($54 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Washington to Kansai Intl

Cheapest flights from Washington to Kansai Intl
Explore the most affordable flight options available from Washington to Kansai Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 26, 2025.

This oojo deal was found by Cheapflights users on 6/25. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/12:15 pmSEA - KIX
1 stop33h 35mAsiana Airlines
sáb. 9/610:50 amKIX - SEA
1 stop17h 40mAsiana Airlines
Deal found 6/25$664
This Air Canada deal was found by Cheapflights users on 6/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/118:00 pmSEA - KIX
1 stop28h 40mAir Canada
jue. 11/207:25 pmKIX - SEA
1 stop19h 41mAir Canada
Deal found 6/26$691
This CrystalTravel deal was found by Cheapflights users on 6/25. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/207:20 amSEA - KIX
2 stops21h 40mKorean Air
vie. 10/2412:35 pmKIX - SEA
1 stop14h 05mKorean Air
Deal found 6/25$692
This Cheapflightsfares deal was found by Cheapflights users on 6/25. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/95:30 amPDX - KIX
1 stop17h 20mANA
mar. 9/164:50 pmKIX - PDX
1 stop13h 52mANA
Deal found 6/25$701
This United Airlines deal was found by Cheapflights users on 6/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 7/135:25 amPDX - KIX
1 stop17h 25mUnited Airlines
mar. 7/294:55 pmKIX - PDX
1 stop23h 40mUnited Airlines
Deal found 6/24$707
This Cheapflightsfares deal was found by Cheapflights users on 6/25. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/1211:35 pmSEA - KIX
1 stop22h 45mPhilippine Airlines
dom. 10/193:20 pmKIX - SEA
1 stop19h 55mPhilippine Airlines
Deal found 6/25$715
This Ovago deal was found by Cheapflights users on 6/25. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/511:15 amPDX - KIX
2 stops32h 05mKorean Air
jue. 8/2112:35 pmKIX - PDX
2 stops18h 03mKorean Air
Deal found 6/25$716
This FlightHub deal was found by Cheapflights users on 6/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/313:25 pmPDX - KIX
1 stop33h 00mAir Canada
sáb. 9/136:05 pmKIX - PDX
2 stops36h 37mAir Canada
Deal found 6/25$720
This Trip.com deal was found by Cheapflights users on 6/25. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/31:20 pmSEA - KIX
1 stop15h 45mMultiple Airlines
mar. 8/512:35 pmKIX - SEA
1 stop14h 15mMultiple Airlines
Deal found 6/25$727
This FlightHub deal was found by Cheapflights users on 6/23. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/144:30 pmSEA - KIX
1 stop13h 50mANA
jue. 10/236:35 pmKIX - SEA
1 stop11h 50mANA
Deal found 6/23$733
This United Airlines deal was found by Cheapflights users on 6/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/265:30 amSEA - KIX
1 stop19h 05mUnited Airlines
mié. 11/268:25 amKIX - SEA
1 stop21h 55mUnited Airlines
Deal found 6/24$737
This Air Canada deal was found by Cheapflights users on 6/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/169:50 amPDX - KIX
1 stop14h 50mMultiple Airlines
jue. 11/277:25 pmKIX - PDX
2 stops19h 01mMultiple Airlines
Deal found 6/26$742

Cheapflights Fare Finder

Customize your flight search to find flights from Washington to Kansai Intl 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 junio 26, 2025.
Use the filters below to find and compare flights from Washington to Osaka Kansai Intl Airport that are best for you.

Fly from

Washington

Fly to

Kansai Intl

Route

Depart

Return

Price

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

lun. 9/1

2:15 pm-3:50 pm

1 stop33h 35m

Osaka Kansai Intl

sáb. 9/6

10:50 am-12:30 pm

1 stop17h 40m

$664

PortlandOsaka

PDX - KIX

PDXKIX

Portland

mar. 9/9

5:30 am-2:50 pm

1 stop17h 20m

Osaka Kansai Intl

mar. 9/16

4:50 pm-2:42 pm

1 stop13h 52m

$701

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

jue. 8/21

1:20 pm-9:00 pm

1 stop15h 40m

Osaka Kansai Intl

vie. 8/29

12:35 pm-10:50 am

1 stop14h 15m

$708

PortlandOsaka

PDX - KIX

PDXKIX

Portland

lun. 9/29

7:30 am-2:50 pm

1 stop15h 20m

Osaka Kansai Intl

jue. 10/9

4:50 pm-2:42 pm

1 stop13h 52m

$715

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

lun. 9/1

12:35 pm-9:05 pm

1 stop16h 30m

Osaka Kansai Intl

sáb. 9/6

9:05 am-10:25 pm

2 stops29h 20m

$716

PortlandOsaka

PDX - KIX

PDXKIX

Portland

mar. 8/5

11:15 am-9:00 pm

2 stops17h 45m

Osaka Kansai Intl

mar. 8/12

12:35 pm-2:38 pm

2 stops18h 03m

$716

PortlandOsaka

PDX - KIX

PDXKIX

Portland

dom. 8/31

7:40 pm-4:25 pm

1 stop28h 45m

Osaka Kansai Intl

sáb. 9/13

6:05 pm-2:42 pm

2 stops36h 37m

$720

PortlandOsaka

PDX - KIX

PDXKIX

Portland

dom. 11/16

9:50 am-5:40 pm

1 stop14h 50m

Osaka Kansai Intl

jue. 11/27

7:25 pm-9:26 pm

2 stops19h 01m

$742

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

dom. 7/20

1:20 pm-11:20 am

1 stop30h 00m

Osaka Kansai Intl

jue. 8/7

9:05 am-10:50 am

1 stop17h 45m

$745

SeattleOsaka

SEA - KIX

SEAKIX

Seattle/Tacoma Intl

sáb. 9/13

7:15 pm-4:25 pm

1 stop29h 10m

Osaka Kansai Intl

sáb. 9/20

6:05 pm-10:16 pm

1 stop20h 11m

$747

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/25

Showing 1-10 of 48 results
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Best time to book a flight from Washington to Kansai Intl

Have a flexible travel schedule? Discover the best time to fly to Kansai Intl from Washington 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.

Cheapflights Insights

Everything you need to know about your flight from Washington to Osaka Kansai Intl Airport

What is the cheapest month to book a flight from State of Washington to Osaka Kansai Intl Airport?

Currently, February is the cheapest month in which you can book a flight from State of Washington to Osaka Kansai Intl Airport (average of $884). Flying from State of Washington to Osaka Kansai Intl Airport in June is currently the most expensive (average of $1,324). 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.

What is the cheapest time of day to fly from WA to KIX?

Find hourly flight availability from Washington to Kansai Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated junio 26, 2025.

When flying from State of Washington to Osaka Kansai Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Kansai Intl

Get insights into the airlines that provide service to Kansai Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Kansai Intl. Reviews last updated junio 26, 2025.
Read through reviews of airlines operating flights from Washington to Osaka Kansai Intl Airport, such as STARLUX Airlines, EVA Air, and Korean Air. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.1
Wonderful
185 reviews

Entertainment

9.0

Comfort

9.0

Food

8.8

Crew

9.3

Boarding

9.1

Overall

9.1

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
9.1
Wonderful
185 reviews
STARLUX Airlines
9.1
Wonderful
185 reviews

Entertainment

9.0

Comfort

9.0

Food

8.8

Crew

9.3

Boarding

9.1

Overall

9.1

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
EVA Air
8.4
Very good
1,208 reviews
STARLUX Airlines
9.1
Wonderful
185 reviews

Entertainment

9.0

Comfort

9.0

Food

8.8

Crew

9.3

Boarding

9.1

Overall

9.1

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Korean Air
8.4
Very good
1,096 reviews
STARLUX Airlines
9.1
Wonderful
185 reviews

Entertainment

9.0

Comfort

9.0

Food

8.8

Crew

9.3

Boarding

9.1

Overall

9.1

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Japan Airlines
8.3
Very good
1,504 reviews
STARLUX Airlines
9.1
Wonderful
185 reviews

Entertainment

9.0

Comfort

9.0

Food

8.8

Crew

9.3

Boarding

9.1

Overall

9.1

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
China Airlines
8.3
Very good
745 reviews
STARLUX Airlines
9.1
Wonderful
185 reviews

Entertainment

9.0

Comfort

9.0

Food

8.8

Crew

9.3

Boarding

9.1

Overall

9.1

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

Related info for your journey

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

  • What are the cheapest airlines to fly from State of Washington to Osaka Kansai Intl Airport one-way?

    The cheapest airline one-way is Korean Air, with whom users have recently found tickets for as low as $361. However, be on the lookout for offers from Alaska Airlines and ANA, as they are both options that can get you from State of Washington to Osaka Kansai Intl Airport for a low price.

  • What are the most popular routes from State of Washington to Osaka Kansai Intl Airport?

    The most popular flight routes from State of Washington to Osaka Kansai Intl Airport are Seattle/Tacoma Intl - Osaka Kansai Intl, Portland - Osaka Kansai Intl and Pasco Tri Cities - Osaka Kansai Intl.

  • Can I find deals for flights from Washington to Kansai Intl that include hotel bookings?

    Yes. In addition to deals on Washington to Kansai Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Kansai Intl?

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

  • Can I find deals for business class flights from Washington to Kansai Intl?

    Yes. Cheapflights offers flight deals from Washington to Kansai Intl 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 State of Washington to Osaka Kansai Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from State of Washington to Osaka Kansai Intl Airport (average of $884). Flying from State of Washington to Osaka Kansai Intl Airport in June is currently the most expensive (average of $1,324). 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.

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Alternative routes for Washington to Kansai Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Washington to Kansai Intl

Discover the top 10 airlines that operate flights from Washington to Kansai Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated junio 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
Asiana AirlinesCheapest$648Average$901FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$669Average$1,050FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$716Average$1,133FlexibilityNo cancel feeOn-time81%
China EasternCheapest$719Average$756FlexibilityNo cancel feeOn-time62%
ANACheapest$746Average$1,075FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$794Average$1,029FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$856Average$1,431FlexibilityNo cancel feeOn-time85%
STARLUX AirlinesCheapest$918Average$1,105FlexibilityNo cancel feeOn-timeN/A
EVA AirCheapest$963Average$1,159FlexibilityNo cancel feeOn-time74%
China AirlinesCheapest$999Average$1,186FlexibilityNo cancel feeOn-time70%

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