Cheap flights from Seoul to Washington, D.C. from $409
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 Washington, D.C. departing on 5/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
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 Seoul to Washington, D.C.
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
American Airlines flights from Seoul to Washington, D.C. Dulles Intl Airport
Our best American Airlines deals on Seoul to Washington, D.C. Dulles Intl Airport flight tickets
Air Canada flights from Seoul to Washington, D.C. Dulles Intl Airport
Our best Air Canada deals on Seoul to Washington, D.C. Dulles Intl Airport flight tickets
See travel insights to Washington, D.C. from
How to get the cheapest flight ticket from Seoul to Washington, D.C. Dulles 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 typical price of a round-trip flight between Seoul and Washington, D.C. Dulles Intl Airport?
What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?
In general, April is the cheapest month to fly from Seoul to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,099. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of April, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $1,232.
What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?
Our data shows that Monday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $1,520. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Seoul to Washington, D.C. Dulles Intl Airport for around $1,989.
What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?
Flying to Washington, D.C. Dulles Intl Airport from Seoul in the afternoon 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 afternoon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,565 on average. Flights to Washington, D.C. Dulles Intl Airport from Seoul in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.
What is the cheapest Seoul to Washington, D.C. Dulles Intl flight route?
Fly from Incheon Intl to Washington, D.C. Dulles Intl for the best Seoul - Washington, D.C. Dulles Intl flight prices
How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?
You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Seoul when booking 6 weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $1,427 when searching 6 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Seoul for as low as $1,202 on momondo.
What cabin class options are available on Seoul to Washington, D.C. Dulles Intl flights?
There are 4 cabin classes available to choose from on Seoul to Washington, D.C. Dulles 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 Washington, D.C. Dulles Intl?
American Airlines, Air China, and Ethiopian Air are the most popular carriers operating from Seoul to Washington, D.C. Dulles Intl
What airlines fly to Washington, D.C. Dulles Intl Airport?
Korean Air, United Airlines and Delta are the top three most popular airlines that fly to Washington, D.C. Dulles Intl Airport from Seoul according to our data. Korean Air is the first choice among our users, with 62% of people opting to fly with this airline when traveling to Washington, D.C. Dulles Intl Airport. Keep in mind that there are 5 different airlines that fly to Washington, D.C. Dulles Intl Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from Seoul to Washington, D.C. Dulles Intl Airport on average per day?
The number of flights available between Seoul and Washington, D.C. Dulles Intl Airport is 2 per day as of May 2025. The most frequent departure time is 10:00AM, with 100% of daily flights leaving at noon.
How many flights depart from Seoul to Washington, D.C. Dulles Intl Airport on average per week?
The number of flights available between Seoul and Washington, D.C. Dulles Intl Airport is 14 per week as of May 2025. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.
When to book flights from Seoul to Washington, D.C. Dulles Intl Airport
Cheap Seoul to Washington, D.C. Dulles Intl Airport (SEL to IAD) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seoul to Washington, D.C. Dulles Intl Airport
How far is Seoul to Washington, D.C. Dulles Intl by plane?
The distance between Seoul and Washington, D.C. Dulles Intl is about 6922.8 mi. Flights usually cover this in 18h 05m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Seoul to Washington, D.C. Dulles Intl Airport?
Prices for flights from Seoul to Washington, D.C. Dulles Intl Airport refresh daily.
How many operators does momondo search for flights from Seoul to Washington, D.C. Dulles Intl Airport?
As of May 2025, there are 5 operators available to choose from for flights from Seoul to Washington, D.C. Dulles Intl Airport.
How old do you have to be to fly from Seoul to Washington, D.C. Dulles Intl Airport?
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 Seoul to Washington, D.C. Dulles Intl Airport.
What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?
The travel and health documents you'll need for your trip to Washington, D.C. Dulles 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 Washington, D.C. Dulles 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 Seoul to Washington, D.C. Dulles Intl Airport?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Seoul to Washington, D.C. Dulles Intl Airport is Boeing 777-300ER (87.08% of total bookings). The next most popular plane models are Airbus A350-900 (6.64%), Boeing 747-8 (4.43%), and Boeing 787-9 Dreamliner (1.11%).
What is the most popular airline from Seoul to Washington, D.C. Dulles Intl Airport?
momondo data reveals that the most frequently booked airline on the route from Seoul to Washington, D.C. Dulles Intl Airport is Korean Air, representing 100% of all bookings.
Best airlines flying from Seoul to Washington, D.C. Dulles Intl Airport
Compare and see reviews for airlines that fly from Seoul to Washington, D.C. Dulles Intl Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $688 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $726 | Free Cancellation | Rating 7.4 8,696 reviews | |||
| PriceFrom $965 | Free Cancellation | Rating 7.0 9,252 reviews | |||
| PriceFrom $1,300 | Free Cancellation | Rating 8.4 1,068 reviews | |||
| PriceFrom $1,313 | Free Cancellation | Rating 8.0 7,934 reviews |
Korean Air Flights From Seoul to Washington, D.C. Dulles Intl Airport
Across 7 Korean Air flights from Seoul to Washington, D.C. Dulles Intl Airport this week, the average price was $1,532, with the best Korean Air deals starting from $1,300 round-trip. 1,068 users have rated Korean Air on momondo, with an average score of 8.4/10.
Delta Flights From Seoul to Washington, D.C. Dulles Intl Airport
Another popular option for Seoul to Washington, D.C. Dulles Intl Airport flights is Delta (8.0/10, 7,934 ratings). Delta flies from Seoul to Washington, D.C. Dulles Intl Airport around 7 times per week, with deals starting from $1,313 round-trip and rising to an average price of around $1,532.
Traveling to a place near Washington, D.C.?
Book flights to Washington, D.C. if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Seoul to Washington, D.C.?
It is quick and easy to find Seoul to Washington, D.C. flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington, D.C. that suits you.
Can I find flights from Seoul to Washington, D.C. with flexible booking policies on momondo?
momondo does allow users to show only those flights to Washington, D.C. 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 Washington, D.C.?
Once all potential Seoul to Washington, D.C. 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 Washington, D.C. right now. Can momondo alert me if prices change?
Price alerts on flights to Washington, D.C. 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.