Cheap flights from Washington to Incheon Intl Airport from $387
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 Incheon Intl Airport departing on 1/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Deals available from 900+ travel sites.
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Washington to Seoul
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Cheap bus & train deals from Washington to Seoul
All round-trip flight deals to Seoul
Air Canada flights from State of Washington to Incheon Intl Airport
Our best Air Canada deals on State of Washington to Incheon Intl Airport flight tickets
China Eastern flights from State of Washington to Incheon Intl Airport
Our best China Eastern deals on State of Washington to Incheon Intl Airport flight tickets
See travel insights to Seoul from
How to get the cheapest flight ticket from State of Washington to Incheon Intl Airport
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 Incheon Intl Airport?
The cheapest month to fly to Incheon Intl Airport from State of Washington is in February. Flight prices, which tend to average around $1,103, are often lower during this time because this is during the off-season. If you are unable to visit Incheon Intl Airport during the month of February, then departing from State of Washington during the month January is also very affordable. Most momondo users find prices during this month for around $1,152.
What is the cheapest day to depart on your flight to Incheon Intl Airport?
The cheapest day to depart from State of Washington to Incheon Intl Airport is on a Tuesday when prices can be found for as low as $1,262. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $1,330. These prices are subject to change though, so be sure to set up a Price Alert for flights to Incheon Intl Airport.
What is the cheapest time of day to depart on your flight to Incheon Intl Airport?
In the evening is the cheapest time of day to fly from State of Washington to Incheon Intl Airport when you can find flight prices for as low as $1,056. Flying to Incheon Intl Airport in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,345 on average. Flights to Incheon Intl Airport from State of Washington at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.
What is the cheapest Washington to Incheon Intl flight route?
Fly from Seattle/Tacoma Intl to Incheon Intl for the best Washington - Incheon Intl flight prices
How far in advance should I book a flight to Incheon Intl Airport?
In general, most travelers find the cheapest time to book a flight to Incheon Intl Airport is about 11 days prior to their departure date when tickets on average are $1,340. Keep in mind that you might also find cheap flights to Incheon Intl Airport outside of this time window. In fact, momondo users recently found flights from State of Washington to Incheon Intl Airport for $864.
What cabin class options are available on Washington to Incheon Intl flights?
There are 3 cabin classes available to choose from on Washington to Incheon 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 Washington to Incheon Intl?
Asiana Airlines, American Airlines, and Hawaiian Airlines are the most popular carriers operating from Washington to Incheon Intl
What airlines fly to Incheon Intl Airport?
Korean Air, Asiana Airlines and Air Canada are the top three most popular airlines that fly to Incheon Intl Airport from State of Washington according to our data. Korean Air is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Incheon Intl Airport. Keep in mind that there are 9 different airlines that fly to Incheon Intl Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from State of Washington to Incheon Intl Airport on average per day?
As of January 2025, there are 9 flights per day flying from State of Washington to Incheon Intl Airport. The most common time of day flights depart is 12:00PM, with 57% of flights taking off at noon.
How many flights depart from State of Washington to Incheon Intl Airport on average per week?
The number of flights available between State of Washington and Incheon Intl Airport is 66 per week as of January 2025. The most frequent departure day is Wed, with 18% of weekly flights leaving on this day.
Cheap State of Washington to Incheon Intl Airport flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from State of Washington to Incheon Intl Airport
When did momondo last update prices for flights from Washington to Incheon Intl Airport?
Prices for flights from Washington to Incheon Intl Airport are updated daily.
How many operators does momondo search for flights from Washington to Incheon Intl Airport?
As of January 2025, there are 9 operators available to choose from for flights from Washington to Incheon Intl Airport.
How old do you have to be to fly from Washington to Incheon Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington to Incheon Intl Airport.
What documentation or ID do you need to fly to Incheon Intl Airport?
The travel and health documents you'll need for your trip to Incheon Intl Airport 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 Incheon Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from State of Washington to Incheon Intl Airport?
momondo data reveals that the most frequently booked plane model on the route from State of Washington to Incheon Intl Airport is Boeing 787-9 Dreamliner, representing 19.45% of all bookings. The subsequent popular models are Airbus A350-900 at 18.42%, Airbus A330-900neo at 16.25%, and Boeing 777-300ER at 15.01%.
Best airlines flying from State of Washington to Incheon Intl Airport
Compare and see reviews for airlines that fly from State of Washington to Incheon Intl Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $600 | Free Cancellation | Rating 7.9 2,304 reviews | |||
| PriceFrom $769 | Free Cancellation | Rating 7.4 8,942 reviews | |||
| PriceFrom $849 | Free Cancellation | Rating 7.0 8,516 reviews | |||
| PriceFrom $856 | Free Cancellation | Rating 8.2 733 reviews | |||
| PriceFrom $950 | Free Cancellation | Rating 8.2 460 reviews | |||
| PriceFrom $970 | Free Cancellation | Rating 7.3 3,900 reviews | |||
| PriceFrom $974 | Free Cancellation | Rating 8.0 8,501 reviews | |||
| PriceFrom $1,005 | Free Cancellation | Rating 8.4 1,030 reviews | |||
| PriceFrom $1,011 | Free Cancellation | Rating 8.4 1,242 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Washington to Seoul?
Finding the right flight to Seoul from Washington is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Seoul quick and easy, saving you time and money.
Can I find flights from Washington to Seoul with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Washington to Seoul flights to just show those with flexible booking policies.
How can momondo help me find flights from Washington to Seoul?
momondo helps you find the best flight between Washington and Seoul 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 Washington to Seoul right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Washington to Seoul now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seoul and let you know when they change.