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Cheap flights from Osaka Kansai Intl Airport to Washington from $438

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 9/22. 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

Philippine Airlines Logo
10:20 am - 7:15 pmKIX-SEA
24h 55m1 stop
Philippine Airlines Logo
11:35 pm - 7:40 pmSEA-KIX
28h 05m1 stop
$700Philippine Airlines
Find Deal
Fri, Sep 19 - Fri, Sep 26
Air Canada Logo
6:05 pm - 6:46 pmKIX-PDX
16h 41m1 stop
Air Canada Logo
10:00 am - 4:25 pmPDX-KIX
14h 25m1 stop
$723Air Canada
Find Deal
Thu, Sep 11 - Mon, Sep 15
Asiana Airlines Logo
10:50 am - 12:30 pmKIX-SEA
17h 40m1 stop
Asiana Airlines Logo
12:10 am - 3:50 pmSEA-KIX
23h 40m1 stop
$725Asiana Airlines
Find Deal
Thu, Oct 16 - Tue, Oct 28
Logo
3:10 pm - 7:54 amKIX-SEA
32h 44m2 stops
Logo
2:50 pm - 10:50 pmSEA-KIX
16h 00m1 stop
$742
Find Deal
Fri, Sep 19 - Fri, Sep 26
Korean Air Logo
9:05 am - 10:39 pmKIX-PDX
29h 34m2 stops
Korean Air Logo
6:20 am - 5:05 pmPDX-KIX
42h 45m2 stops
$743Korean Air
Find Deal
Wed, Sep 17 - Wed, Sep 24
Asiana Airlines Logo
10:50 am - 1:55 pmKIX-SEA
20h 05m1 stop
Asiana Airlines Logo
12:10 am - 9:40 amSEA-KIX
16h 30m1 stop
$760Asiana Airlines
Find Deal
Thu, Nov 6 - Sun, Nov 9
Delta Logo
12:35 pm - 4:59 pmKIX-PDX
20h 24m2 stops
Delta Logo
5:15 am - 11:20 amPDX-KIX
38h 05m2 stops
$805Delta
Find Deal
Wed, Sep 10 - Wed, Sep 17
Delta Logo
12:35 pm - 5:10 pmKIX-PDX
20h 35m2 stops
Delta Logo
7:15 am - 5:05 pmPDX-KIX
41h 50m2 stops
$807Delta
Find Deal
Wed, Sep 17 - Wed, Sep 24
Korean Air Logo
11:55 am - 1:14 pmKIX-PDX
18h 19m2 stops
Korean Air Logo
5:10 pm - 9:00 pmPDX-KIX
34h 50m2 stops
$811Korean Air
Find Deal
Thu, Jan 15 - Wed, Jan 21
Logo
11:50 am - 10:03 pmKIX-SEA
26h 13m2 stops
Logo
12:50 pm - 9:00 pmSEA-KIX
16h 10m1 stop
$828
Find Deal
Sat, Sep 13 - Mon, Sep 15

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

Our best Philippine Airlines deals on Osaka Kansai Intl Airport to State of Washington flight tickets
Philippine Airlines
Sep 19
KIX10:20 amOsaka Kansai Intl
24h 55m
1 stop
SEA7:15 pmSeattle/Tacoma Intl
Sep 26
SEA11:35 pmSeattle/Tacoma Intl
28h 05m
1 stop
KIX7:40 pmOsaka Kansai Intl
$700
Find similar
Philippine Airlines
Aug 31
KIX3:20 pmOsaka Kansai Intl
19h 55m
1 stop
SEA7:15 pmSeattle/Tacoma Intl
Nov 30
SEA9:30 pmSeattle/Tacoma Intl
23h 35m
1 stop
KIX2:05 pmOsaka Kansai Intl
$765
Find similar
Philippine Airlines
Aug 31
KIX3:20 pmOsaka Kansai Intl
19h 55m
1 stop
SEA7:15 pmSeattle/Tacoma Intl
Nov 30
SEA9:30 pmSeattle/Tacoma Intl
29h 05m
1 stop
KIX7:35 pmOsaka Kansai Intl
$829
Find similar

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

Our best Asiana Airlines deals on Osaka Kansai Intl Airport to State of Washington flight tickets
Asiana Airlines
Oct 16
KIX10:50 amOsaka Kansai Intl
17h 40m
1 stop
SEA12:30 pmSeattle/Tacoma Intl
Oct 28
SEA12:10 amSeattle/Tacoma Intl
23h 40m
1 stop
KIX3:50 pmOsaka Kansai Intl
$725
Find similar
Asiana Airlines
Nov 6
KIX10:50 amOsaka Kansai Intl
20h 05m
1 stop
SEA1:55 pmSeattle/Tacoma Intl
Nov 9
SEA12:10 amSeattle/Tacoma Intl
16h 30m
1 stop
KIX9:40 amOsaka Kansai Intl
$760
Find similar
Asiana Airlines
Oct 6
KIX10:50 amOsaka Kansai Intl
17h 40m
1 stop
SEA12:30 pmSeattle/Tacoma Intl
Oct 20
SEA2:15 pmSeattle/Tacoma Intl
35h 35m
1 stop
KIX5:50 pmOsaka Kansai Intl
$780
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 August 21, 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

Fri 9/19

10:20 am-7:15 pm

1 stop24h 55m

Seattle/Tacoma Intl

Fri 9/26

11:35 pm-7:40 pm

1 stop28h 05m

$700

OsakaPortland

KIX - PDX

KIXPDX

Osaka Kansai Intl

Thu 9/11

6:05 pm-6:46 pm

1 stop16h 41m

Portland

Mon 9/15

10:00 am-4:25 pm

1 stop14h 25m

$723

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Thu 10/16

10:50 am-12:30 pm

1 stop17h 40m

Seattle/Tacoma Intl

Tue 10/28

12:10 am-3:50 pm

1 stop23h 40m

$725

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Fri 9/19

3:10 pm-7:54 am

2 stops32h 44m

Seattle/Tacoma Intl

Fri 9/26

2:50 pm-10:50 pm

1 stop16h 00m

$742

OsakaPortland

KIX - PDX

KIXPDX

Osaka Kansai Intl

Wed 9/17

9:05 am-10:39 pm

2 stops29h 34m

Portland

Wed 9/24

6:20 am-5:05 pm

2 stops42h 45m

$743

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Thu 11/6

10:50 am-1:55 pm

1 stop20h 05m

Seattle/Tacoma Intl

Sun 11/9

12:10 am-9:40 am

1 stop16h 30m

$760

OsakaPortland

KIX - PDX

KIXPDX

Osaka Kansai Intl

Wed 9/10

12:35 pm-4:59 pm

2 stops20h 24m

Portland

Wed 9/17

5:15 am-11:20 am

2 stops38h 05m

$805

OsakaPortland

KIX - PDX

KIXPDX

Osaka Kansai Intl

Wed 9/17

12:35 pm-5:10 pm

2 stops20h 35m

Portland

Wed 9/24

7:15 am-5:05 pm

2 stops41h 50m

$807

OsakaPortland

KIX - PDX

KIXPDX

Osaka Kansai Intl

Thu 1/15

11:55 am-1:14 pm

2 stops18h 19m

Portland

Wed 1/21

5:10 pm-9:00 pm

2 stops34h 50m

$811

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Sat 9/13

11:50 am-10:03 pm

2 stops26h 13m

Seattle/Tacoma Intl

Mon 9/15

12:50 pm-9:00 pm

1 stop16h 10m

$828

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.

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.
Search flight deals

  • 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 many operators does momondo search for flights from Osaka Kansai Intl Airport to Washington?

  • 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.

Best airlines flying from Osaka Kansai Intl Airport to State of Washington

Compare and see reviews for airlines that fly from Osaka Kansai Intl Airport to State of Washington with momondo
Airline
Rating
Free Cancellation
Price
Asiana AirlinesPriceFrom $852Free CancellationRating
8.2
475 reviews
Search Asiana Airlines flights

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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