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Cheap flights from Osaka Kansai Intl Airport to Washington from $387

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Osaka Kansai Intl Airport to Washington departing on 4/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Osaka Kansai Intl Airport to Washington

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
8:45 pm - 9:00 pmKIX-SEA
17h 15m1 stop
Alaska Airlines Logo
7:00 am - 6:45 pmSEA-KIX
18h 45m1 stop
$627Alaska Airlines
Find Deal
Tue, Jan 13 - Mon, Jan 26
Alaska Airlines Logo
8:45 pm - 8:07 pmKIX-SEA
16h 22m1 stop
Alaska Airlines Logo
3:45 pm - 6:45 pmSEA-KIX
34h 00m1 stop
$661Alaska Airlines
Find Deal
Tue, Jan 13 - Sat, Jan 31
Alaska Airlines Logo
3:00 pm - 10:17 pmKIX-SEA
24h 17m2 stops
Alaska Airlines Logo
7:00 am - 6:45 pmSEA-KIX
18h 45m1 stop
$682Alaska Airlines
Find Deal
Tue, Jan 13 - Thu, Jan 29
Philippine Airlines Logo
10:15 am - 6:40 pmKIX-SEA
25h 25m1 stop
Philippine Airlines Logo
11:05 pm - 2:00 pmSEA-KIX
22h 55m1 stop
$761Philippine Airlines
Find Deal
Thu, Mar 5 - Fri, Apr 10
Multiple Airlines Logo
9:00 am - 9:00 amKIX-SEA
17h 00m1 stop
Multiple Airlines Logo
9:30 pm - 7:35 pmSEA-KIX
29h 05m1 stop
$781Multiple Airlines
Find Deal
Fri, Nov 21 - Sun, Nov 23
STARLUX Airlines Logo
1:25 pm - 4:10 pmKIX-SEA
18h 45m1 stop
STARLUX Airlines Logo
1:15 am - 12:15 pmSEA-KIX
19h 00m1 stop
$785STARLUX Airlines
Find Deal
Wed, Apr 29 - Mon, May 4
STARLUX Airlines Logo
12:20 pm - 3:05 pmKIX-SEA
19h 45m1 stop
STARLUX Airlines Logo
11:45 pm - 11:10 amSEA-KIX
18h 25m1 stop
$787STARLUX Airlines
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Fri, Dec 5 - Sun, Dec 7
China Airlines Logo
2:30 pm - 6:10 pmKIX-SEA
20h 40m1 stop
China Airlines Logo
12:10 am - 11:35 amSEA-KIX
18h 25m1 stop
$793China Airlines
Find Deal
Mon, Dec 22 - Sun, Dec 28
China Airlines Logo
12:45 pm - 6:10 pmKIX-SEA
22h 25m1 stop
China Airlines Logo
12:10 am - 1:20 pmSEA-KIX
20h 10m1 stop
$807China Airlines
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Sun, Dec 21 - Sat, Dec 27
Multiple Airlines Logo
8:00 am - 6:48 pmKIX-SEA
27h 48m2 stops
Multiple Airlines Logo
7:00 am - 6:45 pmSEA-KIX
18h 45m1 stop
$809Multiple Airlines
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Fri, Dec 5 - Sun, Dec 7

Alaska Airlines flights from Osaka Kansai Intl Airport to State of Washington

Our best Alaska Airlines deals on Osaka Kansai Intl Airport to State of Washington flight tickets
Alaska Airlines
Jan 13
KIX8:45 pmOsaka Kansai Intl
17h 15m
1 stop
SEA9:00 pmSeattle/Tacoma Intl
Jan 26
SEA7:00 amSeattle/Tacoma Intl
18h 45m
1 stop
KIX6:45 pmOsaka Kansai Intl
$627
Find similar
Alaska Airlines
Jan 13
KIX8:45 pmOsaka Kansai Intl
16h 22m
1 stop
SEA8:07 pmSeattle/Tacoma Intl
Jan 31
SEA3:45 pmSeattle/Tacoma Intl
34h 00m
1 stop
KIX6:45 pmOsaka Kansai Intl
$661
Find similar
Alaska Airlines
Jan 13
KIX3:00 pmOsaka Kansai Intl
24h 17m
2 stops
SEA10:17 pmSeattle/Tacoma Intl
Jan 29
SEA7:00 amSeattle/Tacoma Intl
18h 45m
1 stop
KIX6:45 pmOsaka Kansai Intl
$682
Find similar

STARLUX Airlines flights from Osaka Kansai Intl Airport to State of Washington

Our best STARLUX Airlines deals on Osaka Kansai Intl Airport to State of Washington flight tickets
STARLUX Airlines
Apr 29
KIX1:25 pmOsaka Kansai Intl
18h 45m
1 stop
SEA4:10 pmSeattle/Tacoma Intl
May 4
SEA1:15 amSeattle/Tacoma Intl
19h 00m
1 stop
KIX12:15 pmOsaka Kansai Intl
$785
Find similar
STARLUX Airlines
Dec 5
KIX12:20 pmOsaka Kansai Intl
19h 45m
1 stop
SEA3:05 pmSeattle/Tacoma Intl
Dec 7
SEA11:45 pmSeattle/Tacoma Intl
18h 25m
1 stop
KIX11:10 amOsaka Kansai Intl
$787
Find similar
STARLUX Airlines
Apr 29
KIX1:25 pmOsaka Kansai Intl
18h 45m
1 stop
SEA4:10 pmSeattle/Tacoma Intl
May 4
SEA1:15 amSeattle/Tacoma Intl
19h 00m
1 stop
KIX12:15 pmOsaka Kansai Intl
$806
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Osaka Kansai Intl Airport to State of Washington 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, momondo users made 832,500 searches. Data last updated November 9, 2025.
Use the filters below to find and compare flights from Osaka Kansai Intl Airport to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Tue 1/13

8:45 pm-9:00 pm

1 stop17h 15m

Seattle/Tacoma Intl

Mon 1/26

7:00 am-6:45 pm

1 stop18h 45m

$627

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Tue 1/13

8:45 pm-8:07 pm

1 stop16h 22m

Seattle/Tacoma Intl

Sat 1/31

3:45 pm-6:45 pm

1 stop34h 00m

$661

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Tue 1/13

3:00 pm-10:17 pm

2 stops24h 17m

Seattle/Tacoma Intl

Thu 1/29

7:00 am-6:45 pm

1 stop18h 45m

$682

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Thu 3/5

10:15 am-6:40 pm

1 stop25h 25m

Seattle/Tacoma Intl

Fri 4/10

11:05 pm-2:00 pm

1 stop22h 55m

$761

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Fri 11/21

9:00 am-9:00 am

1 stop17h 00m

Seattle/Tacoma Intl

Sun 11/23

9:30 pm-7:35 pm

1 stop29h 05m

$781

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Wed 4/29

1:25 pm-4:10 pm

1 stop18h 45m

Seattle/Tacoma Intl

Mon 5/4

1:15 am-12:15 pm

1 stop19h 00m

$785

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Fri 12/5

12:20 pm-3:05 pm

1 stop19h 45m

Seattle/Tacoma Intl

Sun 12/7

11:45 pm-11:10 am

1 stop18h 25m

$787

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Mon 12/22

2:30 pm-6:10 pm

1 stop20h 40m

Seattle/Tacoma Intl

Sun 12/28

12:10 am-11:35 am

1 stop18h 25m

$793

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Sun 12/21

12:45 pm-6:10 pm

1 stop22h 25m

Seattle/Tacoma Intl

Sat 12/27

12:10 am-1:20 pm

1 stop20h 10m

$807

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Fri 12/5

8:00 am-6:48 pm

2 stops27h 48m

Seattle/Tacoma Intl

Sun 12/7

7:00 am-6:45 pm

1 stop18h 45m

$809

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington from

How to get the cheapest flight ticket from Osaka Kansai Intl Airport to State of Washington

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

What is the cheapest day to depart on your flight to State of Washington?

The cheapest day to depart from Osaka Kansai Intl Airport to State of Washington is on a Thursday. Travelers who choose to depart for State of Washington on a Thursday will often find tickets for as low as $918. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Osaka Kansai Intl Airport to State of Washington for around $1,724.

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

The cheapest time of day to fly to State of Washington is in the morning when flights can be purchased for as low as $926. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,633 on average. Flights to State of Washington from Osaka Kansai Intl Airport in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Can stopping save me money on Osaka Kansai Intl Airport to State of Washington flights?

You could potentially save up to 8% on your flight if you consider stops on a Osaka Kansai Intl Airport to State of Washington flight.

Cheap Osaka Kansai Intl Airport to State of Washington flight deals and tips

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

Direct flights

None
There are no direct flights from Osaka Kansai Intl Airport to State of Washington. There are no popular flight routes from Osaka Kansai Intl Airport to State of Washington.
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  • When did momondo last update prices for flights from Osaka Kansai Intl Airport to Washington?

    Prices for flights from Osaka Kansai Intl Airport to Washington refresh daily.

  • How old do you have to be to fly from Osaka Kansai Intl Airport to Washington?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Osaka Kansai Intl Airport to Washington.

  • What documentation or ID do you need to fly to Washington?

    The travel and health documents required for your trip to Washington 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 Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

It is quick and easy to find Osaka to Washington flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington that suits you.

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

All flight searches from Osaka to Washington on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Osaka and Washington by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Osaka to Washington right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Osaka to Washington 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.

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