Price observed over the last 3 months for a round trip.
Compare all flight tickets and find cheap flights from Washington to Seoul
Compare all flight tickets and find cheap flights from Washington to Seoul
The cheapest flights right now
Washington – Seoul
Outbound – Oct 24, 2026
1 stop
18h 40m EWR
Return – Nov 8, 2026
1 stop
17h 23m SFO
$1,332
3 days ago
Washington – Seoul
Outbound – Oct 24, 2026
1 stop
18h 40m EWR
Return – Nov 8, 2026
1 stop
17h 55m EWR
$1,314
3 days ago
Washington – Seoul
Outbound – Oct 24, 2026
1 stop
18h 15m BOS
Return – Nov 8, 2026
1 stop
17h 28m BOS
$1,295
3 days ago
Washington – Seoul
Outbound – Oct 24, 2026
1 stop
19h 46m DFW
Return – Nov 8, 2026
1 stop
17h 56m DFW
$1,269
3 days ago
* Prices are in USD per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that availability and ticket prices are subject to change and should not be considered as the final price quoted.
Cheapest flight tickets
$1478
Average price of a round trip
$1615
Average flight ticket price recorded over the last 3 months for a round trip.
Flight duration
30h35
A flight from Washington to Seoul takes on average 30h35.
Best time
September
According to user searches, the ideal month to go to Seoul is September.
Tips for finding a cheap flight from Washington to Seoul
Check out our tips for booking your flight to Seoul (South Korea) from Washington (USA) at the cheapest possible price.
Usually, the cheapest month to pick up a ticket on this route is October, with an average flight ticket price of $673 (calculation over the last two years). The most touristic season corresponds to the months of April, March and October.
For the cheapest flights, it is advisable to buy your ticket at least 7 days before the departure date.
The airline offering the cheapest flight tickets is Air India. A ticket from the airline Air India to Seoul costs on average $1530.
The airlines that offer the most flights are .
Price of flight tickets from Washington to Seoul
Here is some information and tips to know before booking your flight:
- Flight ticket prices range from $1478 to $1704
- The average price of a flight ticket is about $1615
- Prices are lowest for stays in the month of October
- The month in which booking a ticket is cheaper is: April
info departure city :
Washington, USA
airports :
Ronald Reagan Washington National Airport (DCA)
Dulles International Airport (IAD)
College Park Airport (CGS)
local time :
Washington is a city in the country USA, the time zone is [[timezone]]. In Washington, it is currently {fromLocalTime}, the temperature is on average 30°C, with a minimum of 23°C and a maximum of 39°C.
The city of Washington (WAS) has 3 airport(s): Ronald Reagan Washington, Dulles and College Park
destination info :
Seoul, South Korea
airports :
Gimpo International Airport (GMP)
Incheon International Airport (ICN)
local time :
Seoul is in the country South Korea, the time zone is [[timezone]]. In Seoul, it is currently {toLocalTime}, the temperature is on average 24°C, with a minimum of 21°C and a maximum of 30°C.
The city of Seoul (SEL) has 2 airport(s): Gimpo and Incheon
Useful info about Seoul
What is the least touristic period to go to Seoul?
If you want to visit Seoul during the least touristic period, choose the month of September.
What is the most popular time to travel to Seoul?
In Seoul, the most popular month is April. It is during this period that the prices offered by airlines are also the highest.
When should I book my flight from Washington to Seoul?
According to our data, it is recommended to book your flight 7 days before your departure. If you book your flight ticket 2 weeks before your departure, you may find a price below average. You can also choose morning flights that are 100% cheaper than afternoon and evening flights. The cheapest day to book a flight from Washington to Seoul is Saturday.
What are the arrival and destination airports when traveling between Washington and Seoul?
When you leave, you can leave from Dulles, and you will arrive at Incheon.
How to reach Washington airport from the city centre?
The airport Ronald Reagan Washington is located 4 km, Dulles is located 42 km or College Park is located 14 km from the city centre. You can access it by using public transportation, taking a taxi, or renting a car.
Are there other means of transportation to go from Washington to Seoul?
Airplane is the only means of transportation listed on Liligo for this journey.
Are there big differences in weather between Washington and Seoul?
In summer, the average temperature is 25°C in Seoul and 25°C in Washington. The average rainfall in summer is 272 mm in Seoul and 131 mm in Washington. In summer, it is warmer in Seoul and it rains less in Washington. In winter, it is colder in Washington and it rains more in Washington.