Trip.com
>
Flights
>
Flights to South Korea
>
Flights to Seoul
Hotels in Seoul
>
Flights from Washington D.C. to Seoul

Find cheap airlines flights from Washington D.C. to Seoul

You can choose from 6 airlines that fly from Washington D.C. to Seoul, including Air Premia, Korean Air, and EVA Air. Air Premia has lowest fares on this route.
Air Premia logo Air Premia
Korean Air logo Korean Air
EVA Air logo EVA Air
Air Canada logo Air Canada
American Airlines logo American Airlines
Turkish Airlines logo Turkish Airlines
Airlines are determined based on actual purchased flight tickets from Washington D.C. to Seoul according to previous 12 months data from Trip.com.

Book direct flights from Washington D.C. to Seoul: One way flights from $662, round trip flights from $1,075. Find flight deals for the next 3 months below.

      • Cheapest nonstop
        IAD 1:20 PM
        15h 35m
        Nonstop
        ICN 5:55 PM
        Washington D.C. - Seoul | Fri, Jul 24 | Air Premia
        ICN 10:00 AM
        13h 50m
        Nonstop
        IAD 10:50 AM
        Seoul - Washington D.C. | Wed, Jul 29 | Air Premia
        $1,075 $1,477
        27% off
        27% off
        $1,477 $1,075
      • IAD 1:20 PM
        15h 35m
        Nonstop
        ICN 5:55 PM
        Washington D.C. - Seoul | Wed, Jul 22 | Air Premia
        ICN 10:00 AM
        13h 50m
        Nonstop
        IAD 10:50 AM
        Seoul - Washington D.C. | Wed, Jul 29 | Air Premia
        $1,075 $1,477
        27% off
        27% off
        $1,477 $1,075
      • IAD 1:20 PM
        15h 35m
        Nonstop
        ICN 5:55 PM
        Washington D.C. - Seoul | Mon, Jul 27 | Air Premia
        ICN 10:00 AM
        13h 50m
        Nonstop
        IAD 10:50 AM
        Seoul - Washington D.C. | Wed, Jul 29 | Air Premia
        $1,075 $1,477
        27% off
        27% off
        $1,477 $1,075
      • IAD 1:20 PM
        15h 35m
        Nonstop
        ICN 5:55 PM
        Washington D.C. - Seoul | Sun, Jul 26 | Air Premia
        ICN 10:00 AM
        13h 50m
        Nonstop
        IAD 10:50 AM
        Seoul - Washington D.C. | Wed, Jul 29 | Air Premia
        $1,075
        27% off
        $1,477 $1,075
      • IAD 1:20 PM
        15h 35m
        Nonstop
        ICN 5:55 PM
        Washington D.C. - Seoul | Mon, Jul 20 | Air Premia
        ICN 10:00 AM
        13h 50m
        Nonstop
        IAD 10:50 AM
        Seoul - Washington D.C. | Wed, Jul 22 | Air Premia
        $1,083
        27% off
        $1,477 $1,083
      • IAD 1:20 PM
        15h 35m
        Nonstop
        ICN 5:55 PM
        Washington D.C. - Seoul | Fri, Jul 17 | Air Premia
        ICN 10:00 AM
        13h 50m
        Nonstop
        IAD 10:50 AM
        Seoul - Washington D.C. | Wed, Jul 22 | Air Premia
        $1,083
        27% off
        $1,477 $1,083
      • IAD 1:20 PM
        15h 35m
        Nonstop
        ICN 5:55 PM
        Washington D.C. - Seoul | Wed, Jul 15 | Air Premia
        ICN 10:00 AM
        13h 50m
        Nonstop
        IAD 10:50 AM
        Seoul - Washington D.C. | Wed, Jul 22 | Air Premia
        $1,083
        27% off
        $1,477 $1,083
      • IAD 1:20 PM
        15h 35m
        Nonstop
        ICN 5:55 PM
        Washington D.C. - Seoul | Wed, Aug 5 | Air Premia
        ICN 10:00 AM
        13h 50m
        Nonstop
        IAD 10:50 AM
        Seoul - Washington D.C. | Sun, Aug 9 | Air Premia
        $1,122
        24% off
        $1,477 $1,122
      • IAD 1:20 PM
        15h 35m
        Nonstop
        ICN 5:55 PM
        Washington D.C. - Seoul | Sun, Aug 2 | Air Premia
        ICN 10:00 AM
        13h 50m
        Nonstop
        IAD 10:50 AM
        Seoul - Washington D.C. | Wed, Aug 5 | Air Premia
        $1,122
        24% off
        $1,477 $1,122
      • IAD 1:20 PM
        15h 35m
        Nonstop
        ICN 5:55 PM
        Washington D.C. - Seoul | Mon, Aug 3 | Air Premia
        ICN 10:00 AM
        13h 50m
        Nonstop
        IAD 10:50 AM
        Seoul - Washington D.C. | Wed, Aug 5 | Air Premia
        $1,122
        24% off
        $1,477 $1,122
      • WAS 1:00 PM
        17h 25m
        1 stop
        SEL 2:00 PM
        Washington D.C. - Seoul | Tue, Jun 16 | Normal Airline
        SEL 3:00 PM
        6h
        Nonstop
        WAS 4:00 PM
        Seoul - Washington D.C. | Thu, Jun 18 | Normal Airline
        Find more flights
        Find more flights
      • Cheapest nonstop
        IAD 1:20 PM
        15h 35m
        Nonstop
        ICN 5:55 PM
        Washington D.C. - Seoul | Mon, Jul 27 | Air Premia
        $662 $875
        24% off
        24% off
        $875 $662
      • IAD 1:20 PM
        15h 35m
        Nonstop
        ICN 5:55 PM
        Washington D.C. - Seoul | Sun, Aug 2 | Air Premia
        $665 $875
        24% off
        24% off
        $875 $665
      • IAD 1:20 PM
        15h 35m
        Nonstop
        ICN 5:55 PM
        Washington D.C. - Seoul | Mon, Aug 3 | Air Premia
        $665 $875
        24% off
        24% off
        $875 $665
      • IAD 7:00 PM
        34h 45m
        1 stop
        ICN 6:45 PM
        Washington D.C. - Seoul | Fri, Aug 7 | WestJet
        $436
        50% off
        $875 $436
      • IAD 1:50 AM
        20h 10m
        1 stop
        ICN 11:00 AM
        Washington D.C. - Seoul | Tue, Jul 21 | EVA Air
        $558
        36% off
        $875 $558
      • IAD 1:50 AM
        20h 10m
        1 stop
        ICN 11:00 AM
        Washington D.C. - Seoul | Sun, Aug 9 | EVA Air
        $595
        32% off
        $875 $595
      • DCA 8:15 AM
        32h
        1 stop
        ICN 5:15 AM
        Washington D.C. - Seoul | Mon, Aug 10 | Delta Air Lines
        $640
        27% off
        $875 $640
      • IAD 8:20 AM
        24h 15m
        1 stop
        ICN 9:35 PM
        Washington D.C. - Seoul | Thu, Jul 23 | United Airlines
        $647
        26% off
        $875 $647
      • IAD 1:50 AM
        27h 55m
        1 stop
        ICN 6:45 PM
        Washington D.C. - Seoul | Thu, Aug 13 | EVA Air
        $648
        26% off
        $875 $648
      • IAD 1:50 AM
        27h 55m
        1 stop
        ICN 6:45 PM
        Washington D.C. - Seoul | Tue, Aug 11 | EVA Air
        $653
        25% off
        $875 $653
      • WAS 1:00 PM
        17h 25m
        1 stop
        SEL 2:00 PM
        Washington D.C. - Seoul | Tue, Jun 16 | Normal Airline
        Find more flights
        Find more flights

Displayed flight fares from Washington D.C. to Seoul are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight Info | Washington D.C. to Seoul

The distance between Washington D.C. and Seoul is approximately 11,172.97 km. It takes around 15 hours 18 minutes on average to fly from Washington D.C. to Seoul. Based on Trip.com's data travel demand peaks in July. The off-season for travel is October.

Cheapest one-way flight price$436
Cheapest round-trip ticket price$1,075
Off-season for travelOctober
Peak season for travelJuly
Flight distance11,172.97 km
Average flight time15 hours 18 minutes
Popular airlineAir Premia
Flight statistics for the Washington D.C.–Seoul route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com price insights on flights from Washington D.C. to Seoul

Which month has the cheapest one-way flights from Washington D.C. to Seoul?

The average price of one-way flights from Washington D.C. to Seoul purchased by Trip.com users by month over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from Washington D.C. to Seoul is April, with an average price of $767; while the month with the highest flight price is usually December, with an average price of up to $1,800.

$1,800
$1,284
$767
$251
    Cheapest
  • $1,388
    Jun
  • $1,314
    Jul
  • $963
    Aug
  • $882
    Sep
  • $1,092
    Oct
  • $1,095
    Nov
  • $1,800
    Dec
  • $885
    Jan
  • $1,072
    Feb
  • $923
    Mar
  • $767
    Apr
  • $836
    May

What is the cheapest month for round-trip flights from Washington D.C. to Seoul?

Average price of round-trip flights from Washington D.C. to Seoul purchased by Trip.com users by month over the past 12 months

According to historical data from Trip.com, the lowest prices for flights from Washington D.C. to Seoul are found during April, with an average price of $1,607. Conversely, the highest prices are found during December, with an average price of up to $2,820.

$2,820
$2,214
$1,607
$1,001
    Cheapest
  • $2,283
    Jun
  • $2,300
    Jul
  • $1,939
    Aug
  • $1,972
    Sep
  • $2,074
    Oct
  • $2,104
    Nov
  • $2,820
    Dec
  • $1,788
    Jan
  • $1,608
    Feb
  • $1,754
    Mar
  • $1,607
    Apr
  • $1,732
    May

When is the cheapest day to fly from Washington D.C. to Seoul during Juneteenth National Independence Day?

Data is based on the lowest one-way price from Washington D.C. to Seoul during Juneteenth National Independence Day on Trip.com in the past 3 days.

Juneteenth National Independence Day is scheduled for Jun 19. The cheapest flights from Washington D.C. to Seoul are available on Jun 15, with fares starting at $1,012.

$1,937
$1,475
$1,012
$550
  • $1,012
    15
    Jun
  • $1,271
    16
  • $1,271
    17
  • $1,358
    18
  • $1,264
    19
  • $1,937
    20
  • $1,225
    21

Frequently Asked Questions

  • What are the cheapest flights from Washington D.C. to Seoul (WAS-SEL)?

    Based on Trip.com data, WestJet offers one-way fares as low as $436 on Cheapest nonstop routes (e.g. IAD to ICN on Fri, Aug 7), while Air Premia offers Cheapest nonstop round-trips from $1,075 departing on Fri, Jul 24 and returning on Wed, Jul 29.
  • At the moment, you can catch a nonstop flight from Washington D.C. to Seoul with the following airlines, including: Air Premia Korean Air American Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes around 15 hours 18 minutes to fly from Washington D.C. (WAS) to Seoul (SEL).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Washington D.C. to Seoul is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 9 flight per week flying from Washington D.C. to Seoul. You can check the weekly schedule for popular airlines on this route below: Air Premia: S/-/T/-/T/-/- -- YP136 (13:58) Korean Air: S/M/T/W/T/F/S -- KE094 (14:00)
  • To find best deals on flights from Washington D.C. to Seoul, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Fri, Aug 7, with one-way flights priced at just $436.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Air Premia.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Seoul travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Washington D.C. to Seoul is October, when demand for travel is lower.
  • After crunching the numbers on our June flight calendar, it's currently cheapest to fly from Washington D.C. to Seoul on June 26, 2026 with Air Premia, with prices starting at $1,089.
  • You can land at any one of the following hubs in Seoul, with Dulles International Airport to Incheon International Airport (IAD-ICN) is by far the most common option on this route: Incheon International Airport (ICN) Gimpo International Airport (GMP).
  • The time difference between Seoul and Washington D.C. is 14h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Explore More Popular Flights

Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.