$322 Cheap Flights from Seattle (SEA) to Osaka (ITM)

View $322 flight on Mon, Feb 2, 2026Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Itami Airport (ITM)

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Cheap Flights from Seattle to Osaka (SEA-ITM)

Prices were available within the past 7 days and start at $322 for one-way flights and $658 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Japan Airlines
Thu, Jan 29 - Sat, Feb 7
SEA
Seattle
ITM
Osaka
$658 Roundtrip, found 17 hours ago
$658
Roundtrip
found 17 hours ago
Select Japan Airlines flight, departing Thu, Jan 29 from Seattle to Osaka, returning Sat, Feb 7, priced at $658 found 17 hours ago
Japan Airlines
Fri, Jan 9 - Fri, Jan 16
SEA
Seattle
ITM
Osaka
$660 Roundtrip, found 4 days ago
$660
Roundtrip
found 4 days ago
Select Japan Airlines flight, departing Fri, Jan 9 from Seattle to Osaka, returning Fri, Jan 16, priced at $660 found 4 days ago
All Nippon Airways
Fri, Jan 30 - Mon, Feb 9
SEA
Seattle
ITM
Osaka
$661 Roundtrip, found 4 hours ago
$661
Roundtrip
found 4 hours ago
Select All Nippon Airways flight, departing Fri, Jan 30 from Seattle to Osaka, returning Mon, Feb 9, priced at $661 found 4 hours ago
United
Mon, Jan 26 - Mon, Feb 2
SEA
Seattle
ITM
Osaka
$662 Roundtrip, found 17 hours ago
$662
Roundtrip
found 17 hours ago
Select United flight, departing Mon, Jan 26 from Seattle to Osaka, returning Mon, Feb 2, priced at $662 found 17 hours ago
Japan Airlines
Thu, Jan 22 - Fri, Feb 6
SEA
Seattle
ITM
Osaka
$664 Roundtrip, found 2 days ago
$664
Roundtrip
found 2 days ago
Select Japan Airlines flight, departing Thu, Jan 22 from Seattle to Osaka, returning Fri, Feb 6, priced at $664 found 2 days ago
Alaska Airlines
Sat, Jan 17 - Fri, Feb 13
SEA
Seattle
ITM
Osaka
$665 Roundtrip, found 4 days ago
$665
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, Jan 17 from Seattle to Osaka, returning Fri, Feb 13, priced at $665 found 4 days ago
United
Mon, May 11 - Tue, May 19
SEA
Seattle
ITM
Osaka
$667 Roundtrip, found 1 day ago
$667
Roundtrip
found 1 day ago
Select United flight, departing Mon, May 11 from Seattle to Osaka, returning Tue, May 19, priced at $667 found 1 day ago
Japan Airlines
Sun, Jan 25 - Tue, Feb 10
SEA
Seattle
ITM
Osaka
$669 Roundtrip, found 2 hours ago
$669
Roundtrip
found 2 hours ago
Select Japan Airlines flight, departing Sun, Jan 25 from Seattle to Osaka, returning Tue, Feb 10, priced at $669 found 2 hours ago
All Nippon Airways
Wed, Apr 15 - Wed, Apr 29
SEA
Seattle
ITM
Osaka
$670 Roundtrip, found 1 day ago
$670
Roundtrip
found 1 day ago
Select All Nippon Airways flight, departing Wed, Apr 15 from Seattle to Osaka, returning Wed, Apr 29, priced at $670 found 1 day ago
Air Canada
Wed, Oct 21 - Wed, Oct 28
SEA
Seattle
ITM
Osaka
$682 Roundtrip, found 22 hours ago
$682
Roundtrip
found 22 hours ago
Select Air Canada flight, departing Wed, Oct 21 from Seattle to Osaka, returning Wed, Oct 28, priced at $682 found 22 hours ago

Find the cheapest month to fly from Seattle (SEA) to Osaka (ITM)

November is typically the cheapest month to fly

From $618 - $1,175 per traveler.

Alternative airports near Osaka

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Kansai Intl. KIX. Average driving time to city center is 40 minutes. Flights from $1,981
KIX
Kansai Intl.
Average driving time to city center40 min
Flights from $1,981
Select flight to Kobe Airport UKB. Cheapest option available. Average driving time to city center is 32 minutes. Flights from $1,897
UKB
Kobe Airport
Cheapest
Average driving time to city center32 min
Flights from $1,897
Flights from Seattle (SEA) to Osaka (ITM)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Itami
Airlines serving
Air Canada, Alaska Airlines, All Nippon Airways, American Airlines, Hawaiian Airlines, Japan Airlines, United
Roundtrip price
$658
Distance
5002 mi

Seattle to Osaka Flights

The cheapest times to fly from Seattle to Osaka

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Osaka are during the month of January. You can find some of the cheapest flights from Seattle to Osaka with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Osaka

Sunday is one of the best days to book for cheap flights from Seattle to Osaka: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seattle to Osaka

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Osaka in 2026. You can also book with separate airlines for your outbound and return journeys, from $322 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Osaka flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Osaka airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Itami Airport (ITM) cost?
Lock in a cheap one-way flight from $322 or cheap return flight from $658 from Seattle - Tacoma Intl. Airport (SEA) to Itami Airport (ITM) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to Itami Airport (ITM)?
Traveling in January is a great way to save, as it's the cheapest month for flights between SEA and ITM. You'll often find the lowest prices during the off-season.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Itami Airport (ITM)?
To find the cheapest airline that'll fly you from SEA to ITM, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Itami Airport (ITM)?
You'll need to hop on a flight with a layover if you're traveling from Seattle - Tacoma Intl. Airport (SEA) to Itami Airport (ITM). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from SEA to ITM?
Generally you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can change depending on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Itami Airport (ITM)?
Opt for a flight from Seattle - Tacoma Intl. Airport (SEA) to Itami Airport (ITM) that takes off before 3 PM to reduce the risk of cancellations and delays. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Itami Airport (ITM) last-minute?
Last-minute bookings from SEA to ITM are usually more expensive. To secure the best rates, start looking for flights ahead of time. That said, if you're flexible with your travel dates, you may land a cheap fare just before your departure.
Is it cheaper to book a SEA to ITM flight and hotel package?
Opting for a SEA to ITM flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Select from our impressive range of hotels and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Itami Airport (ITM)?
Typically, it's possible to cancel or reschedule your SEA to ITM flight. However, if it's been more than 24 hours since booking, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.