Cheap flights from Washington to Seoul from $411
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Seoul departing on 7/19. 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 State of Washington to Seoul
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 Seoul?
The month of January is another great option to travel to Seoul, with average flight prices from State of Washington averaging around $976.
What is the cheapest day to depart on your flight to Seoul?
According to our data, Wednesday is the cheapest day to fly to Seoul from State of Washington. The lowest ticket price found for a Wednesday departure recently was $886. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Seoul is Saturday, with ticket prices averaging around $1,034.
What is the cheapest time of day to depart on your flight to Seoul?
Flying to Seoul from State of Washington in the evening is the least expensive time of day to depart. momondo users have found prices as low as $835 when looking at flights departing in the evening. In the afternoon is when there is more demand to fly to Seoul, so prices are often more expensive at around $1,401 per ticket.
What is the cheapest Washington to Seoul flight route?
Fly from Seattle/Tacoma Intl to Incheon Intl for the best Washington - Seoul flight prices
How far in advance should I book a flight to Seoul?
You are more likely to see cheaper flights to Seoul from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Seoul for around $1,221 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seoul from State of Washington for as low as $1,059 on momondo.
What cabin class options are available on Washington to Seoul flights?
There are 3 cabin classes available to choose from on Washington to Seoul 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 Washington to Seoul?
Air Canada, China Airlines, and WestJet are the most popular carriers operating from Washington to Seoul
What airlines fly to Seoul?
Korean Air, Asiana Airlines and Air Canada are the top three most popular airlines that fly to Seoul from State of Washington according to our data. Korean Air is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Seoul. Keep in mind that there are 10 different airlines that fly to Seoul on a routine basis, so you have a few additional options to choose from.
How many flights depart from State of Washington to Seoul on average per day?
The number of flights available between State of Washington and Seoul is 8 per day as of June 2025. The most frequent departure time is 2:00PM, with 100% of daily flights leaving in the afternoon.
How many flights depart from State of Washington to Seoul on average per week?
The number of flights available between State of Washington and Seoul is 57 per week as of June 2025. The most frequent departure day is Fri, with 16% of weekly flights leaving on this day.
Cheap State of Washington to Seoul flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from State of Washington to Seoul
When did momondo last update prices for flights from Washington to Seoul?
Prices for flights from Washington to Seoul are updated daily.
How many operators does momondo search for flights from Washington to Seoul?
As of June 2025, there are 10 operators available to choose from for flights from Washington to Seoul.
How old do you have to be to fly from Washington to Seoul?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington to Seoul.
What documentation or ID do you need to fly to Seoul?
The required travel and health documents for your Seoul trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seoul. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from State of Washington to Seoul?
Based on momondo bookings for flights between State of Washington and Seoul, the leading plane model is Boeing 787-10 Dreamliner, making up 29.34% of the total bookings. Other popular models include Airbus A350-900 with 20.43%, Boeing 787-9 Dreamliner with 16.95%, and Boeing 777-200LR with 16.49%.
Best airlines flying from State of Washington to Seoul
Compare and see reviews for airlines that fly from State of Washington to Seoul with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $167 | Free Cancellation | Rating 8.0 7,962 reviews | |||
| PriceFrom $182 | Free Cancellation | Rating 8.0 10,000 reviews | |||
| PriceFrom $657 | Free Cancellation | Rating 7.4 8,830 reviews | |||
| PriceFrom $763 | Free Cancellation | Rating 7.8 2,517 reviews | |||
| PriceFrom $822 | Free Cancellation | Rating 7.1 9,595 reviews | |||
| PriceFrom $886 | Free Cancellation | Rating 8.3 744 reviews | |||
| PriceFrom $908 | Free Cancellation | Rating 8.2 443 reviews | |||
| PriceFrom $966 | Free Cancellation | Rating 8.4 1,090 reviews | |||
| PriceFrom $970 | Free Cancellation | Rating 7.3 3,867 reviews | |||
| PriceFrom $978 | Free Cancellation | Rating 8.4 1,205 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Washington to Seoul?
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 Washington to Seoul for you.
Can I find flights from Washington to Seoul with flexible booking policies on momondo?
Yes. All flights to Seoul from Washington on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Washington to Seoul?
momondo provides multiple filters to help you find the best flight to Seoul from Washington. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Washington to Seoul right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Washington to Seoul flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.