Cheap flight deals from Washington D.C. to Seoul Starting at $442

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

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One way

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to fly from Washington D.C. to Seoul?

We monitor flight fares to help you find the best deals effortlessly

Cheapest flights

From price

16 23
23 30
Apr

30 6
6 13
13 20
20 27
May

27 4
4 11
11 18
18 25
Jun

25 1
1 8

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

When are flight tickets from Washington D.C. (WAS) to Seoul (SEL) the cheapest?

Airlines adjust prices for flights from Washington D.C. to Seoul based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much do flights from Washington D.C. (WAS) to Seoul (SEL) cost?

According to Trip.com's data, the lowest price is around $1,779.
How long does it take to fly from Washington D.C. (WAS) to Seoul (SEL) and what is the distance?

It takes around 15 hours 10 minutes to fly from Washington D.C. (WAS) to Seoul (SEL).
What is the transportation method from the main airport to downtown in Seoul?
- The distance from Incheon International Airport to downtown is about 48 km. It takes about 1 hour by taxi.
- The distance from Gimpo International Airport to downtown is about 15 km. It takes about 30 minutes by taxi.
What are the most popular airlines that fly from Washington D.C. (WAS) to Seoul (SEL)?

Airlines with flights from Washington D.C. (WAS) to Seoul (SEL): Delta Air Lines and Korean Air.

How to find a cheap flight from Washington D.C. to Seoul

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Washington D.C. to Seoul. Book your flights at the right time and save more.

Be flexible with your travel dates to get the cheapest Washington D.C. to Seoul ticket.

Tap "Date" in the flight search bar to browse the calendar and find airfare from Washington D.C. to Seoul for the next six months in 2025. If you're looking to fly within the next three months, the lowest fare is $1069 for a one-way ticket on Thu, Apr 3.

Compare cheap Washington D.C. to Seoul flight deals from hundreds of airlines.

Our powerful search system compares prices from over 500 airlines. So you can find the cheapest flights from Washington D.C. to Seoul. The most affordable airline currently operating on this route is Korean Air.

Set up a Price Alert to track fare drops.

Set up a Price Alert for your Washington D.C. to Seoul route to track ticket prices effortlessly—no need to check manually every day.

Don't miss out on cheap Washington D.C. to Seoul flight deals and promo codes.

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Book early or wait unitl the last minute to fine the best fares.

It's always better to book early! Airlines typically release their lowest fares about a year before departure, so check as soon as flights become available. If you miss that window, you may still find great deals closer to your travel date.

Search for flights on the go.

For the best booking experience on the go, download Trip.com and search for cheap flights from Washington D.C. to Seoul to access exclusive deals just for you.

Flight Info | Washington D.C. to Seoul

Cheapest nonstop flight price	$442
Cheapest round-trip ticket price	$1,546
Off-season for travel	February
Peak season for travel	June
Flight distance	11,172.97 km
Average flight time	15 hours 10 minutes
Popular airline	American Airlines