How long is the flight from Osaka to Seattle?

For as low as $785, Korean Air can have you in Seattle from Osaka in 21h 15m. Osaka and Seattle are separated by a distance of 5024 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What are the cheapest airlines to fly from Osaka to Seattle one-way?

For one-way options, check prices for EVA Air. According to our data, you can fly for as low as $309. Users have also found prices from $420 and $424 on Korean Air and Air Canada, respectively.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Most accurate provider : When it comes to deals on Osaka-Seattle flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Osaka-Seattle flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Osaka-Seattle flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Osaka-Seattle flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Osaka-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly into for flights to Seattle from Osaka?

If you book a flight to Seattle from Osaka, you will be flying to Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle. There are 0 flights from Osaka to Seattle/Tacoma Intl per day from 0 different airlines.

Can I find deals for flights from Osaka to Seattle that include hotel bookings?

Yes. In addition to deals on Osaka to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Osaka to Seattle?

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

Can I find deals for business class flights from Osaka to Seattle?

Yes. Cheapflights offers flight deals from Osaka to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$343+ Flights from Osaka to Seattle

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1. Tell us where you want to go

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2. Select your favorite providers

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Cheap flight deals from Osaka to Seattle

Cheapest flights from Osaka to Seattle
Explore the most affordable flight options available from Osaka to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 26, 2025.

Thu 12/252:00 pmKIX - SEA

1 stop18h 05mSTARLUX Airlines

Tue 12/3011:45 pmSEA - KIX

1 stop20h 05mSTARLUX Airlines

Deal found 12/24

$1,370

Thu 12/256:35 pmKIX - SEA

2 stops38h 49mUnited Airlines

Tue 12/301:35 pmSEA - KIX

1 stop34h 05mUnited Airlines

Deal found 12/25

$1,386

Thu 12/251:00 pmKIX - SEA

2 stops42h 58mKLM

Tue 12/303:05 pmSEA - KIX

1 stop27h 15mKLM

Deal found 12/24

$1,510

Thu 12/258:45 pmKIX - SEA

1 stop20h 07mMultiple Airlines

Tue 12/307:00 amSEA - KIX

1 stop18h 45mMultiple Airlines

Deal found 12/25

$1,560

Best flights from Osaka to Seattle
Discover carefully curated flight deals from Osaka to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.

Tue 1/138:45 pmKIX - SEA

1 stop16h 22mMultiple Airlines

Tue 1/277:00 amSEA - KIX

1 stop18h 45mMultiple Airlines

Deal found 12/25

$618

Mon 2/96:10 pmKIX - SEA

1 stop31h 50mKorean Air

Mon 2/1611:00 amSEA - KIX

1 stop32h 50mKorean Air

Deal found 12/25

$672

Tue 6/232:00 pmKIX - SEA

1 stop21h 15mChina Airlines

Tue 9/151:15 amSEA - KIX

1 stop18h 45mChina Airlines

Deal found 12/24

$785

Wed 2/41:40 pmITM - SEA

2 stops27h 19mAmerican Airlines

Sun 2/87:52 pmSEA - ITM

2 stops19h 48mAmerican Airlines

Deal found 12/23

$808

Tue 1/2712:55 pmKIX - SEA

1 stop22h 15mEVA Air

Wed 1/2812:10 amSEA - KIX

1 stop23h 45mEVA Air

Deal found 12/23

$867

Sun 2/89:00 amKIX - SEA

1 stop17h 00mKorean Air

Sun 2/1511:00 amSEA - KIX

1 stop16h 45mKorean Air

Deal found 12/25

$737

Sun 5/241:10 pmKIX - SEA

1 stop22h 05mChina Airlines

Sun 5/241:15 amSEA - KIX

1 stop24h 50mChina Airlines

Deal found 12/24

$790

Mon 2/98:00 amKIX - SEA

2 stops42h 15mMultiple Airlines

Mon 2/163:40 pmSEA - KIX

2 stops52h 45mMultiple Airlines

Deal found 12/25

$794

Sat 1/1710:50 amKIX - SEA

2 stops22h 41mMultiple Airlines

Sun 1/187:00 amSEA - KIX

1 stop18h 45mMultiple Airlines

Deal found 12/24

$813

Wed 6/248:45 pmKIX - SEA

1 stop25h 15mMultiple Airlines

Mon 6/298:56 pmSEA - KIX

1 stop29h 49mMultiple Airlines

Deal found 12/25

$839

Sat 2/78:25 pmKIX - SEA

2 stops43h 26mMultiple Airlines

Sat 2/143:40 pmSEA - KIX

2 stops48h 05mMultiple Airlines

Deal found 12/23

$847

Tue 6/237:05 pmKIX - SEA

2 stops29h 08mMultiple Airlines

Tue 9/151:15 amSEA - KIX

1 stop19h 35mMultiple Airlines

Deal found 12/24

$859

Sat 2/74:30 pmITM - SEA

2 stops19h 52mAmerican Airlines

Sat 2/146:01 amSEA - ITM

2 stops20h 54mAmerican Airlines

Deal found 12/23

$1,364

Sat 1/172:40 pmITM - SEA

1 stop13h 00mMultiple Airlines

Sun 1/183:45 pmSEA - ITM

1 stop26h 25mMultiple Airlines

Deal found 12/24

$1,017

Tue 6/236:25 pmITM - SEA

2 stops19h 20mMultiple Airlines

Wed 9/161:30 pmSEA - ITM

1 stop14h 15mMultiple Airlines

Deal found 12/24

$1,185

Sun 5/249:20 amITM - SEA

2 stops17h 20mMultiple Airlines

Mon 5/254:30 pmSEA - ITM

1 stop24h 35mMultiple Airlines

Deal found 12/24

$1,265

Wed 2/42:40 pmITM - SEA

1 stop13h 00mMultiple Airlines

Sun 2/812:20 pmSEA - ITM

1 stop14h 35mMultiple Airlines

Deal found 12/23

$1,284

Wed 1/72:40 pmITM - SEA

2 stops16h 51mMultiple Airlines

Sat 1/1012:30 pmSEA - ITM

1 stop14h 25mMultiple Airlines

Deal found 12/24

$1,387

Last-minute flights from Osaka to Seattle
Discover last-minute flight deals from Osaka to Seattle. Data last updated December 26, 2025 and is based on user searches.

Tue 1/69:10 pmKIX - SEA

2 stops41h 56mMultiple Airlines

Fri 1/99:55 amSEA - KIX

2 stops31h 15mMultiple Airlines

Deal found 12/23

$973

Wed 1/78:00 amKIX - SEA

2 stops31h 06mMultiple Airlines

Sat 1/1010:05 amSEA - KIX

2 stops17h 30mMultiple Airlines

Deal found 12/24

$987

Wed 1/72:40 pmITM - SEA

2 stops16h 51mMultiple Airlines

Sat 1/1012:30 pmSEA - ITM

1 stop14h 25mMultiple Airlines

Deal found 12/24

$1,387

Fri 1/98:00 amKIX - SEA

2 stops23h 31mMultiple Airlines

Mon 1/123:40 pmSEA - KIX

2 stops35h 55mMultiple Airlines

Deal found 12/26

$804

Tue 1/138:45 pmKIX - SEA

1 stop16h 22mMultiple Airlines

Tue 1/277:00 amSEA - KIX

1 stop18h 45mMultiple Airlines

Deal found 12/25

$618

Tue 1/136:05 pmKIX - SEA

2 stops43h 29mCathay Pacific

Tue 1/273:45 pmSEA - KIX

3 stops30h 10mCathay Pacific

Deal found 12/25

$1,020

Sat 1/1710:50 amKIX - SEA

2 stops22h 41mMultiple Airlines

Sun 1/187:00 amSEA - KIX

1 stop18h 45mMultiple Airlines

Deal found 12/24

$813

Sat 1/1710:30 amKIX - SEA

1 stop20h 25mAsiana Airlines

Sat 1/1712:10 amSEA - KIX

1 stop27h 45mAsiana Airlines

Deal found 12/24

$816

Sat 1/172:40 pmITM - SEA

1 stop13h 00mMultiple Airlines

Sun 1/183:45 pmSEA - ITM

1 stop26h 25mMultiple Airlines

Deal found 12/24

$1,017

Sat 1/242:40 pmITM - SEA

1 stop12h 15mAmerican Airlines

Sat 1/317:52 pmSEA - ITM

2 stops19h 48mAmerican Airlines

Deal found 12/25

$2,097

Sat 1/242:40 pmITM - SEA

1 stop12h 15mJapan Airlines

Sat 1/3112:30 pmSEA - ITM

1 stop14h 25mJapan Airlines

Deal found 12/25

$2,408

Tue 1/2710:55 amKIX - SEA

1 stop24h 15mEVA Air

Wed 1/2812:10 amSEA - KIX

1 stop23h 45mEVA Air

Deal found 12/24

$867

One-way flights from Osaka to Seattle
Search for one-way flight options from Osaka to Seattle. Find affordable one-way fares based on user searches. Data last updated December 26, 2025.

Tue 3/108:45 pmKIX - SEA

2 stops36h 24mMultiple Airlines

Deal found 12/24

$343

Wed 3/118:00 amKIX - SEA

2 stops26h 52mMultiple Airlines

Deal found 12/24

$360

Mon 1/192:35 pmKIX - SEA

1 stop34h 25mHainan Airlines

Deal found 12/24

$372

Fri 3/132:35 pmKIX - SEA

1 stop34h 25mHainan Airlines

Deal found 12/24

$396

Fri 3/138:00 amKIX - SEA

3 stops24h 57mMultiple Airlines

Deal found 12/24

$429

Mon 1/199:10 pmKIX - SEA

3 stops40h 29mMultiple Airlines

Deal found 12/24

$431

Thu 3/1211:00 amKIX - SEA

3 stops39h 25mMultiple Airlines

Deal found 12/24

$438

Thu 4/1612:00 pmKIX - SEA

3 stops38h 25mMultiple Airlines

Deal found 12/25

$446

Thu 3/268:00 amKIX - SEA

3 stops53h 03mMultiple Airlines

Deal found 12/25

$449

Wed 3/1110:55 amITM - SEA

3 stops37h 52mMultiple Airlines

Deal found 12/24

$456

Fri 3/139:00 amITM - SEA

3 stops23h 57mMultiple Airlines

Deal found 12/24

$475

Wed 4/158:15 pmITM - SEA

3 stops38h 48mMultiple Airlines

Deal found 12/24

$505

Find flight deals from Osaka to Seattle

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$618 (Expedia)
One-way from	$343 (Kiwi.com)
Popular in	September
Cheapest in	May
Average price	$846

Provider with most accurate pricing for Osaka (OSA)-Seattle/Tacoma Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for Osaka (OSA)-Seattle/Tacoma Intl flights.

Search Deals

From Osaka (OSA) to Seattle/Tacoma Intl

Search Deals

One-way flight from Osaka (OSA) to Seattle/Tacoma Intl

Search Deals

Highest demand for flights based on searches. 9% potential increase in price ($92 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($21 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Tue 1/13

8:45 pm-8:07 pm

1 stop16h 22m

Seattle/Tacoma Intl

Tue 1/27

7:00 am-6:45 pm

1 stop18h 45m

$618

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Mon 2/9

6:10 pm-9:00 am

1 stop31h 50m

Seattle/Tacoma Intl

Mon 2/16

11:00 am-12:50 pm

1 stop32h 50m

$672

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Sun 2/8

9:00 am-9:00 am

1 stop17h 00m

Seattle/Tacoma Intl

Sun 2/15

11:00 am-8:45 pm

1 stop16h 45m

$737

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Tue 6/23

2:00 pm-7:15 pm

1 stop21h 15m

Seattle/Tacoma Intl

Tue 9/15

1:15 am-12:00 pm

1 stop18h 45m

$785

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Sun 5/24

1:10 pm-7:15 pm

1 stop22h 05m

Seattle/Tacoma Intl

Sun 5/24

1:15 am-6:05 pm

1 stop24h 50m

$790

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Mon 2/9

8:00 am-9:15 am

2 stops42h 15m

Seattle/Tacoma Intl

Mon 2/16

3:40 pm-1:25 pm

2 stops52h 45m

$794

OsakaSeattle

ITM - SEA

ITMSEA

Osaka Itami

Wed 2/4

1:40 pm-11:59 pm

2 stops27h 19m

Seattle/Tacoma Intl

Sun 2/8

7:52 pm-8:40 am

2 stops19h 48m

$808

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Sat 1/17

10:50 am-4:31 pm

2 stops22h 41m

Seattle/Tacoma Intl

Sun 1/18

7:00 am-6:45 pm

1 stop18h 45m

$813

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Wed 6/24

8:45 pm-6:00 am

1 stop25h 15m

Seattle/Tacoma Intl

Mon 6/29

8:56 pm-6:45 pm

1 stop29h 49m

$839

OsakaSeattle

KIX - SEA

KIXSEA

Osaka Kansai Intl

Sat 2/7

8:25 pm-10:51 pm

2 stops43h 26m

Seattle/Tacoma Intl

Sat 2/14

3:40 pm-8:45 am

2 stops48h 05m

$847

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/24

Showing 1-10 of 37 results

Compare providers for flights from Osaka to Seattle

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Osaka to Seattle in December.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Expedia	Price Accuracy2 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Osaka-Seattle flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Osaka-Seattle flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Osaka-Seattle flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Osaka-Seattle flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Osaka-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Osaka to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Osaka 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 Osaka to Seattle

What is the cheapest time of day to fly from OSA to SEA?

A simple way to save on the total cost of your ticket is to fly from Osaka to Seattle in the evening. If you’re flexible enough to do this you can expect to save up to 39% on your trip compared to booking a flight in the morning.

Reviews of airlines servicing Seattle

See what other customers who have flown with STARLUX Airlines and ANA from Osaka to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

STARLUX Airlines

8.9

Very good

250 reviews

Reviews

1 / 9

10.0

Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

STARLUX Airlines

8.9

Very good

250 reviews

STARLUX Airlines

8.9

Very good

250 reviews

Reviews

1 / 9

10.0

Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

ANA

8.4

Very good

1,044 reviews

STARLUX Airlines

8.9

Very good

250 reviews

Reviews

1 / 9

10.0

Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

Related info for your journey

What airport do you fly into for flights to Seattle from Osaka?
If you book a flight to Seattle from Osaka, you will be flying to Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle. There are 0 flights from Osaka to Seattle/Tacoma Intl per day from 0 different airlines.
How long is the flight from Osaka to Seattle?
For as low as $785, Korean Air can have you in Seattle from Osaka in 21h 15m. Osaka and Seattle are separated by a distance of 5024 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the cheapest airlines to fly from Osaka to Seattle one-way?
For one-way options, check prices for EVA Air. According to our data, you can fly for as low as $309. Users have also found prices from $420 and $424 on Korean Air and Air Canada, respectively.
Can I find deals for flights from Osaka to Seattle that include hotel bookings?
Yes. In addition to deals on Osaka to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Osaka to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Osaka to Seattle.
Can I find deals for business class flights from Osaka to Seattle?
Yes. Cheapflights offers flight deals from Osaka to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Olympia

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Renton

Puyallup

Kirkland

Kent

Tukwila

Cle Elum

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Fife

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Shoreline

Centralia

Federal Way

Chehalis

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$343+ Cheap flights from Osaka (OSA) to Seattle (SEA)

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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Osaka to Seattle with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Osaka to Seattle

Cheapest flights from Osaka to SeattleExplore the most affordable flight options available from Osaka to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 26, 2025.

Explore the most affordable flight options available from Osaka to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 26, 2025.

Find flight deals from Osaka to Seattle

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Osaka to Seattle that are best for you.

Compare providers for flights from Osaka to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Osaka to Seattle in December.

Best time to book a flight from Osaka to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Osaka with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Osaka to Seattle

What is the cheapest time of day to fly from OSA to SEA?

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

Reviews of airlines servicing Seattle

See what other customers who have flown with STARLUX Airlines and ANA from Osaka to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What airport do you fly into for flights to Seattle from Osaka?

How long is the flight from Osaka to Seattle?

What are the cheapest airlines to fly from Osaka to Seattle one-way?

Can I find deals for flights from Osaka to Seattle that include hotel bookings?

How can I find direct flights from Osaka to Seattle?

Can I find deals for business class flights from Osaka to Seattle?

Traveling to a place near Seattle?

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Cheapest flights from Osaka to Seattle
Explore the most affordable flight options available from Osaka to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 26, 2025.