Find Cheap Flights from Seattle/Tacoma Intl to Osaka Kansai International (SEA - KIX)

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Sat 11/18
Sat 11/25
Any month
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Good to Know

Low Season:
August
Best time to beat the crowds
4%
expected price decrease
High Season:
December
Most popular time to fly
13%
expected price increase
Average Price:
$1240
(avg. price over the last 2 weeks)
Good Deal:
$866
or less (round trip)

When to Book Flights from Seattle/Tacoma Intl to Osaka Kansai International

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

When looking for a cheap flight, consider that 25% of our users selected a flight on this route for $865 or less.
The cheapest flight from Seattle/Tacoma Intl to Osaka Kansai International was found 74 days before departure, on average.
Book at least 5 weeks before departure in order to get a below-average price.
Morning departure is around 11% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Seattle/Tacoma Intl to Osaka Kansai International Flights

How long does a flight from Seattle/Tacoma Intl to Osaka Kansai International take?
An average nonstop flight takes 15h 50m, covering a distance of 5028 miles.
Which airlines provide the cheapest flights from Seattle/Tacoma Intl to Osaka Kansai International?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($592), Air China ($617) and XiamenAir ($902).
Do I need a passport to fly between Seattle/Tacoma Intl and Osaka Kansai International?
Yes.
What’s the cheapest day of the week to fly Seattle/Tacoma Intl to Osaka Kansai International?
For Seattle/Tacoma Intl to Osaka Kansai International, Thursday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Osaka Kansai International back to Seattle/Tacoma Intl, the best deals are generally found on Monday, with Sunday being the most expensive.

Book cheap flights from Seattle/Tacoma Intl to Osaka Kansai International (round-trip)

Airports
Origin
Seattle
$592
only
$592
Destination
Osaka
$592
only
$592
Thu, Apr 5
SEA
KIX
45h 30m
Wed, Apr 18
KIX
SEA
27h 00m
Trip: 14 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Mar 12
SEA
KIX
26h 25m
Mon, Apr 16
KIX
SEA
43h 48m
Trip: 36 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3174 reviews
Overall
6.4
Boarding
6.6
Comfort
6.4
Crew
6.8
Entertainment
5.9
Food
5.9
BKK
PEK
Excellent 9.6

Everything, meals were good.

JFK
PEK
Good 7.3

Crew efficient

No entertainment, console broken. Ran out of menu item of choice, but alternative was easily digestible.

PEK
BKK
Okay 5.6

they should really do something about tight connections. If your first airline is only barely late, it becomes a frantic haste from hell to get thru security again and to your next airline. Security needs to inspect every element of your carryon in spite of the fact you were already screened on your previous flight. They will dump out your entire bag to inspect all contents. Extremely easy to lose important things. They confiscate all spare batteries if they only appear to be high power range regardless of what the actual voltage is.

PEK
HKT
Okay 4.3

Crew and flight were professional and courteous.

Passengers from Beijing were rude, and consistently snorting and spitting throughout the entire flight. Not just one person but everyone around us. Very disgusting and nauseating listening to that for 6+hours. I had earbuds in the entire flight and could still hear the spitting...

IAD
PEK
Mediocre 2.0

They overcharged, customer support unreliable and bad service!

They overcharged, customer support unreliable and bad service!

Wed, Dec 27
SEA
KIX
36h 05m
Mon, Jan 8
KIX
SEA
55h 05m
Trip: 13 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 213 reviews
Overall
7.1
Boarding
7.2
Comfort
7.2
Crew
7.5
Entertainment
6.6
Food
6.8
XMN
MNL
Mediocre 2.0

I missed the connecting flight and was rerouted on a Nov 2, 8:35am China Southern flight from Guangzhou to Manila

CKG
SZX
Excellent 8.8

all of the Xiamen staff were really great.

Nothing that I disliked.

NRT
XMN
Okay 5.3

The offerings of beverages and the choices were good

Lack of communication by staff. Lack of entertainment on 14 hour flight. Was told not to use device while others were able to use.

XMN
KHN
Excellent 10.0

Hostess

LHW
KHN
Excellent 10.0

Hostess

Thu, Apr 12
SEA
KIX
23h 50m
Fri, Apr 27
KIX
SEA
25h 17m
Trip: 16 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Jan 26
SEA
KIX
29h 25m
Mon, Jan 29
KIX
SEA
45h 38m
Trip: 4 days
6.3GoodShow reviews
Overall 6.3 Good
Based on 3174 reviews
Overall
6.4
Boarding
6.6
Comfort
6.4
Crew
6.8
Entertainment
5.9
Food
5.9
JFK
PEK
Good 7.3

Crew efficient

No entertainment, console broken. Ran out of menu item of choice, but alternative was easily digestible.

PEK
YUL
Okay 4.0

Boarding process was really quick. In half an hour they boarded a complete flight.

There was a very rude person sitting behind me. He kept hitting my seat every time I reclined it. I brought up to the flight attendant but she had no intention of getting involved or helping out.

JFK
PEK
Excellent 9.0

Great flight and entertainment throughout.

Everything w this flight was satisfactory. No negatives to mention.

PEK
MNL
Mediocre 2.0

Air china needs to improved plane and food

LAX
PEK
Mediocre 2.6

Better customer service

Air China staff need to better understand and learn how to talk to people.

Thu, Jan 11
SEA
KIX
39h 10m
Mon, Jan 15
KIX
SEA
41h 06m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Mar 22
SEA
KIX
31h 20m
Wed, Mar 28
KIX
SEA
26h 36m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Dec 18
SEA
KIX
15h 50m
Mon, Jan 1
KIX
SEA
20h 57m
$1631
Trip: 15 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 51141 reviews
Overall
7.2
Boarding
7.3
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
DCA
IAH
Good 7.3

Crew was great and helpful!

Not enough options for people with celiac.

NRT
LAX
Excellent 10.0

Service and food were great. Flight was smooth and a lot of leg room. Will definitely fly again.

JAX
IAH
Good 7.6

N/A

Seat was really hard and hurt to sit on after the first hour. Even had trouble sleeping it was so bad.

EWR
PBI
Okay 4.6

Arrived on time

Distance between gates

IAH
LAS
Good 7.3

Seat was really hard and hurt to sit on after the first hour. Even had trouble sleeping it was so bad.

Wed, Nov 29
SEA
KIX
67h 00m
Wed, Dec 6
KIX
SEA
38h 30m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Feb 23
SEA
KIX
65h 20m
Sun, Mar 4
KIX
SEA
53h 45m
Trip: 10 days
Overall 0.0 Poor
Based on 0 reviews
Wed, May 2
SEA
KIX
32h 00m
Tue, May 15
KIX
SEA
36h 05m
Trip: 14 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Dec 17
SEA
KIX
16h 05m
Wed, Dec 27
KIX
SEA
15h 53m
$1660
Trip: 11 days
Overall 0.0 Poor
Based on 0 reviews
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*
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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.