Airlines Offering Direct Flights From Seattle (SEA) to Osaka (KIX)

Searching for airlines offering direct flights from Seattle–Tacoma International Airport (SEA) to Kansai International Airport (KIX) in Osaka? Here’s a quick overview of carriers directly connecting SEA and KIX.

No direct flights available

Flying from Seattle (SEA) to Osaka (KIX)

Here’s what you need to know before you go.

Cheapest flight ticket available

$389*

Average flight duration

13 hours and 35 minutes

Most popular airline

ANA (All Nippon Airways)

Number of flights per week

N/A

*Airfare prices subject to change.

When to Fly from Seattle (SEA) to Osaka (KIX)

We’re constantly monitoring ticket prices, making it easy for you to find the best deals quickly. For SEA to Osaka, January and February offer the lowest fares.

 

February is typically the most economical option for a Seattle to Osaka flight, as it falls within the “off-season,” leading to lower demand and more competitive airline pricing. January is also affordable, ranking as the second cheapest time to fly. The winter months tend to see fewer tourists due to cooler temperatures and the possibility of inclement weather.

 

In contrast, December and June are usually the most expensive months for this route. December is driven by holiday travel, and June is the start of the summer vacation season.

Book Cheap Flights
Cheapest months to fly

January and February

Book Cheap Flights
Most Expensive Months to Fly

June and December

Alternative Routes Aside from Seattle (SEA) to Osaka (KIX)

Considering other options to get from SEA to Osaka? Compare routes that may provide cheaper, faster, or easier services for Seattle to Osaka flights below.

Kobe Airport, located 26 km (16 miles) from central Osaka, is an alternative route for travelers flying from Seattle to Osaka. While Kansai International Airport (KIX) is the primary gateway, Kobe Airport offers another option with convenient access to the Osaka region via train and ferry connections.  

Itami Airport, located just 11 km (6.8 miles) from central Osaka, is the closest airport to the city and is an alternative route for travelers flying from Seattle to Osaka. While primarily handling domestic flights, Itami is well-connected to major Osakaese hubs. Common carriers on this route include Osaka Airlines, Alaska Airlines, and American Airlines, offering multiple travel options for reaching Osaka.

*Airfare prices subject to change.

Frequently Asked Questions

Avoid peak months like June and December to save money on flights from Seattle to Osaka. OneAir offers affordable options and great flexibility, so you can travel without breaking the bank. Sign up for OneAir today and access exclusive offers and discounts for your next trip.

Asiana Airlines, ANA, United Airlines, and Alaska Airlines offer the cheapest Seattle to Osaka flights.

The fastest SEA to Osaka flight time takes 13 hours and 5 minutes via All Nippon Airways (ANA).

There are currently no airlines offering direct flights from Seattle to Osaka. 

The lowest price for a roundtrip flight from Seattle to Osaka is $758 via Asiana Airlines.

Asiana Airlines and ANA offer the cheapest business-class flight priced at $2,355.

Layover durations vary depending on the airline and route. Non-direct SEA to Osaka flights typically take 1 to 3 hours at hubs in Honolulu (HNL), San Francisco (SFO), Seoul (ICN), and Los Angeles (LAX).

U.S. passport holders can visit Japan without a visa for short stays since the U.S. is a visa-exempt country.

Osaka is 17 hours ahead of Seattle.

The subway is the fastest and most convenient way to travel around the city. The JR Loop Line is also useful for major stops.

How to find cheap flights from Seattle to Osaka

Looking for cheap flights from SEA to Osaka, Japan? OneAir makes it easy to discover incredible flight deals to destinations around the world. Follow these simple steps to start saving on your next trip.

  • Set your departure airports on OneAir. Choose your preferred departure airports, and we’ll search for the cheapest flights from those cities to Osaka, Japan. OneAir offers deals from over 50 major US airports, so you can find the most convenient and affordable options.
  • Be flexible with your travel dates. If your schedule allows, use our “Explore” or “Add Destinations” feature to find the most affordable days to fly to Osaka, Japan. Shifting your dates by just a day or two can often result in significant savings.
  • Turn on your notifications. We’ll notify you via email or push notification whenever the price for your selected route is at its lowest. This way, you’ll never miss a deal.
  • Compare flight options from multiple providers. Choose the cheapest, fastest, or most convenient flights to Osaka, Japan based on your priorities.
  • Filter for direct flights. If you prefer nonstop service to Osaka, Japan, simply tick the “Nonstop” box when searching. We’ll show you all available nonstop routes, so you can avoid lengthy layovers.
  • Get the best unpublished deals. Dreaming of a luxurious journey to Osaka, Japan? We also find the best deals on Premium Economy, Business, and First Class fares. Compare prices across all cabin classes – you might be surprised by an affordable premium seat.
  • Expand your search to nearby airports. Unlock even more deals by searching for flights to Osaka, Japan from nearby airports. This will show you flight prices from alternative departure airports close to your origin city.
  • Book a complete travel package. Once you’ve found your perfect flight, why not add a hotel room? OneAir also offers exclusive hotel deals so you can save even more on your entire trip.
  • Discover New Destinations with the “Explore” Tab. Not set on Osaka, Japan? Use our “Explore” search to find the cheapest flights from your city to anywhere in the world. You might just discover your next dream vacation spot!