Cheap flights from Seoul to Seattle from $349
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seoul to Seattle departing on 6/2. 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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How to get the cheapest flight ticket from Seoul to Seattle
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 Seattle?
In general, March is the cheapest month to fly from Seoul to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $668. If you don’t want to visit Seattle in March, then you should wait until February to fly from Seoul, when ticket prices are also cheap, with an average price of $704.
What is the cheapest day to depart on your flight to Seattle?
On average, the least expensive day to fly to Seattle from Seoul is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $1,004. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Seoul because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,440.
What is the cheapest time of day to depart on your flight to Seattle?
Flying to Seattle from Seoul in the morning is the least expensive time of day to depart. momondo users have found prices as low as $922 when looking at flights departing in the morning. Flights to Seattle are more costly in the evening, with an average ticket price of $1,254. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.
What is the cheapest Seoul to Seattle/Tacoma Intl flight route?
Fly from Incheon Intl to Seattle/Tacoma Intl for the best Seoul - Seattle/Tacoma Intl flight prices
How far in advance should I book a flight to Seattle?
You are more likely to see cheaper flights to Seattle from Seoul when booking 23 weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $928 when searching 23 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Seoul for as low as $577 on momondo.
What cabin class options are available on Seoul to Seattle/Tacoma Intl flights?
There are 4 cabin classes available to choose from on Seoul to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Seoul to Seattle/Tacoma Intl?
Hainan Airlines, WestJet, and Air Canada are the most popular carriers operating from Seoul to Seattle/Tacoma Intl
What airlines fly to Seattle?
Asiana Airlines, Korean Air and Delta are the top three most popular airlines that fly to Seattle from Seoul according to our data. Asiana Airlines is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 6 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.
How many flights depart from Seoul to Seattle on average per day?
As of April 2025, there are 7 flights per day flying from Seoul to Seattle. The most common time of day flights depart is 6:00PM, with 75% of flights taking off in the evening.
How many flights depart from Seoul to Seattle on average per week?
The number of flights available between Seoul and Seattle is 50 per week as of April 2025. The most frequent departure day is Mon, with 18% of weekly flights leaving on this day.
When to book flights from Seoul to Seattle
Cheap Seoul to Seattle (SEL to SEA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seoul to Seattle
How far is Seoul to Seattle/Tacoma Intl by plane?
A flight from Seoul to Seattle/Tacoma Intl will travel around 5167.4 mi. By plane, this route typically takes 10h 00m.
When did momondo last update prices for flights from Seoul to Seattle/Tacoma Intl Airport?
Prices for flights from Seoul to Seattle/Tacoma Intl Airport refresh daily.
How many operators does momondo search for flights from Seoul to Seattle/Tacoma Intl Airport?
As of April 2025, there are 6 operators available to choose from for flights from Seoul to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Seoul to Seattle/Tacoma Intl Airport?
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 Seoul to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Seoul to Seattle?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Seoul to Seattle is Boeing 787-10 Dreamliner (32.90% of total bookings). The next most popular plane models are Airbus A350-900 (27.73%), Boeing 777-200LR (13.28%), and Boeing 787-9 Dreamliner (9.69%).
What is the most popular airline from Seoul to Seattle?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Seoul to Seattle is Asiana Airlines (54% of total bookings). The next most popular airlines are Korean Air (31%), Air Canada (8%), and Delta (7%).
Best airlines flying from Seoul to Seattle
Compare and see reviews for airlines that fly from Seoul to Seattle with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $474 | Free Cancellation | Rating 7.0 9,245 reviews | |||
| PriceFrom $515 | Free Cancellation | Rating 8.4 1,069 reviews | |||
| PriceFrom $516 | Free Cancellation | Rating 7.4 8,696 reviews | |||
| PriceFrom $538 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $641 | Free Cancellation | Rating 8.2 442 reviews | |||
| PriceFrom $667 | Free Cancellation | Rating 8.0 7,934 reviews |
Korean Air Flights From Seoul to Seattle
Korean Air operates around 10 flights from Seoul to Seattle every week. The average price of these flights found in the last 72 hours has been $1,051, but momondo users have found Korean Air deals from Seoul to Seattle from as low as $515 round-trip. Korean Air has been scored 8.4/10 in 1,068 reviews.
Asiana Airlines Flights From Seoul to Seattle
Another popular option for Seoul to Seattle flights is Asiana Airlines (8.2/10, 442 ratings). Asiana Airlines flies from Seoul to Seattle around 9 times per week, with deals starting from $641 round-trip and rising to an average price of around $985.
Traveling to a place near Seattle?
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Why should I use momondo to find a flight deal from Seoul to Seattle?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seoul to Seattle for you.
Can I find flights from Seoul to Seattle with flexible booking policies on momondo?
momondo does allow users to show only those flights to Seattle from Seoul which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Seoul to Seattle?
Once all potential Seoul to Seattle flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Seoul to Seattle right now. Can momondo alert me if prices change?
Price alerts on flights to Seattle from Seoul are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.