Cheap flights from Seattle to Osaka from $353
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Osaka departing on 8/16. 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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Korean Air flights from Seattle to Osaka
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How to get the cheapest flight ticket from Seattle to Osaka
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 month to fly to Osaka?
In general, February is the cheapest month to fly from Seattle to Osaka. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $888. If you are unable to visit Osaka during the month of February, then departing from Seattle during the month October is also very affordable. Most momondo users find prices during this month for around $889.
What is the cheapest day to depart on your flight to Osaka?
According to our data, Tuesday is the cheapest day to fly to Osaka from Seattle. The lowest ticket price found for a Tuesday departure recently was $1,071. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Osaka for around $1,160.
What is the cheapest time of day to depart on your flight to Osaka?
Our data shows that the cheapest Seattle to Osaka flights are usually those with departure times in the evening. Our users have found flights to Osaka in the evening for as low as $994. Flights to Osaka are more costly in the afternoon, with an average ticket price of $1,459. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.
How far in advance should I book a flight to Osaka?
You are more likely to see cheaper flights to Osaka from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Osaka for around $1,040 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Osaka from Seattle for as low as $831 on momondo.
What is the cheapest airline that flies from Seattle/Tacoma Intl to Osaka?
Asiana Airlines, Korean Air, and Japan Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Osaka
What airlines fly to Osaka?
ANA, Asiana Airlines and Air Canada are the top three most popular airlines that fly to Osaka from Seattle according to our data. ANA is the first choice among our users, with 54% of people opting to fly with this airline when traveling to Osaka. Keep in mind that there are 11 different airlines that fly to Osaka on a routine basis, so you have a few additional options to choose from.
When to book flights from Seattle to Osaka
Cheap Seattle to Osaka (SEA to OSA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Osaka
How far is Seattle/Tacoma Intl to Osaka by plane?
The distance between Seattle/Tacoma Intl and Osaka is about 4994.7 mi. Flights usually cover this in 13h 15m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Osaka?
Prices for flights from Seattle/Tacoma Intl Airport to Osaka are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Osaka?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Osaka is 11 as of July 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Osaka?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Osaka.
What documentation or ID do you need to fly to Osaka?
The travel and health documents you'll need for your trip to Osaka may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Osaka. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Seattle to Osaka?
momondo data reveals that the most frequently booked airline on the route from Seattle to Osaka is ANA, representing 45% of all bookings. The subsequent popular airlines are Asiana Airlines at 16%, Japan Airlines at 11%, and Air Canada at 11%.
Best airlines flying from Seattle to Osaka
Compare and see reviews for airlines that fly from Seattle to Osaka with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $648 | Free Cancellation | Rating 8.2 452 reviews | |||
| PriceFrom $669 | Free Cancellation | Rating 7.1 9,681 reviews | |||
| PriceFrom $672 | Free Cancellation | Rating 8.4 893 reviews | |||
| PriceFrom $716 | Free Cancellation | Rating 8.4 1,101 reviews | |||
| PriceFrom $719 | Free Cancellation | Rating 7.1 152 reviews | |||
| PriceFrom $797 | Free Cancellation | Rating 7.4 8,861 reviews | |||
| PriceFrom $850 | Free Cancellation | Rating 8.3 1,505 reviews | |||
| PriceFrom $856 | Free Cancellation | Rating 7.8 2,545 reviews | |||
| PriceFrom $918 | Free Cancellation | Rating 9.1 189 reviews | |||
| PriceFrom $963 | Free Cancellation | Rating 8.4 1,215 reviews |
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Why should I use momondo to find a flight deal from Seattle to Osaka?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to Osaka. momondo saves you time and could save you money on your trip.
Can I find flights from Seattle to Osaka with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Seattle to Osaka flights to just show those with flexible booking policies.
How can momondo help me find flights from Seattle to Osaka?
momondo helps you find the best flight between Seattle and Osaka 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 Seattle to Osaka right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Seattle to Osaka now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Osaka and let you know when they change.