SEL - WAS

$380 Find Cheap Flights from Seoul to Washington, D.C. - Compare and Save

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Everything you should know

Cheapest round-trip
$862
Typical prices: $845-$1,580
Multiple Airlines
Sun 12/16Sat 2/10
ICN - IAD • 3 stops
Cheapest non-stop
$1,112
Typical prices: $1,075-$1,662
AIR PREMIA
Sun 11/25Fri 11/30
ICN - IAD • Non-stop
Nonstop flights
Every day
You can fly direct with Korean Air and AIR PREMIA. Average duration is 13h 34m
Direct flights
+1
Direct flights
+1
Top routes
GMP - DCA
Cheapest • 20% average savings
ICN - IAD
Most popular
Insights
Insights
When to book
20 weeks
in advance
Our data shows that travelers who book at least 20 weeks in advance save around 27% compared to booking last minute.
Insights
Insights
When to travel
November
Cheapest • 39% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Dallas/Fort Worth (DFW)
Cheapest • Avg $619 (round-trip)
Atlanta Hartsfield-Jackson (ATL)
Shortest trip • 18h 23m (one-way)
Insights
Insights
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We hope you love your trip to Washington, D.C.!
Flight Deals
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Expert advice
Flight Deals

Cheap Flights from Seoul to Washington, D.C. (SEL-WAS)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seoul to Washington, D.C.

Wed, Dec 16 - Wed, Feb 10
Multiple Airlines Logo
7:45 pm - 3:13 pmICN  Incheon Intl-IAD Washington, D.C. Dulles Intl
33h 28m3 stops San Francisco Las Vegas Harry Reid Intl Atlanta Hartsfield-Jackson
Multiple Airlines Logo
11:35 pm - 5:25 amIAD  Washington, D.C. Dulles Intl-ICN Incheon Intl
15h 50mnonstop
$862Multiple Airlines
Wed, Dec 16 - Sun, Feb 7
Multiple Airlines Logo
7:45 pm - 3:13 pmICN  Incheon Intl-IAD Washington, D.C. Dulles Intl
33h 28m3 stops San Francisco Las Vegas Harry Reid Intl Atlanta Hartsfield-Jackson
Multiple Airlines Logo
11:35 pm - 5:25 amIAD  Washington, D.C. Dulles Intl-ICN Incheon Intl
15h 50mnonstop
$862Multiple Airlines
Mon, Dec 7 - Wed, Dec 9
United Airlines Logo
6:30 pm - 9:13 pmICN  Incheon Intl-IAD Washington, D.C. Dulles Intl
40h 43m1 stop Newark
United Airlines Logo
6:15 am - 4:15 pmIAD  Washington, D.C. Dulles Intl-ICN Incheon Intl
20h 00m1 stop San Francisco
$933United Airlines
Wed, Nov 25 - Mon, Nov 30
AIR PREMIA Logo
9:05 pm - 8:35 pmICN  Incheon Intl-IAD Washington, D.C. Dulles Intl
13h 30mnonstop
AIR PREMIA Logo
11:35 pm - 5:25 amIAD  Washington, D.C. Dulles Intl-ICN Incheon Intl
15h 50mnonstop
$1,112AIR PREMIA
Wed, Nov 25 - Mon, Nov 30
AIR PREMIA Logo
9:05 pm - 8:35 pmICN  Incheon Intl-IAD Washington, D.C. Dulles Intl
13h 30mnonstop
AIR PREMIA Logo
11:35 pm - 5:25 amIAD  Washington, D.C. Dulles Intl-ICN Incheon Intl
15h 50mnonstop
$1,123AIR PREMIA
Sun, Jan 31 - Sun, Mar 28
United Airlines Logo
6:00 pm - 11:25 amICN  Incheon Intl-IAD Washington, D.C. Dulles Intl
31h 25m2 stops San Francisco Houston George Bush Intcntl
United Airlines Logo
10:08 am - 4:20 amIAD  Washington, D.C. Dulles Intl-ICN Incheon Intl
29h 12m2 stops Chicago O'Hare Intl San Francisco
$1,155United Airlines
Thu, Dec 24 - Tue, Jan 19
Delta Logo
10:15 am - 9:50 amICN  Incheon Intl-IAD Washington, D.C. Dulles Intl
13h 35mnonstop
Delta Logo
6:15 pm - 5:45 pmIAD  Washington, D.C. Dulles Intl-ICN Incheon Intl
33h 30m1 stop New York John F Kennedy Intl
$1,518Delta
Thu, Dec 17 - Sun, Feb 7
Delta Logo
10:15 am - 9:50 amICN  Incheon Intl-IAD Washington, D.C. Dulles Intl
13h 35mnonstop
Delta Logo
6:15 pm - 5:45 pmIAD  Washington, D.C. Dulles Intl-ICN Incheon Intl
33h 30m1 stop New York John F Kennedy Intl
$1,519Delta
Wed, Apr 14 - Wed, May 5
Korean Air Logo
10:25 am - 11:15 amICN  Incheon Intl-IAD Washington, D.C. Dulles Intl
13h 50mnonstop
Korean Air Logo
1:15 pm - 5:40 pmIAD  Washington, D.C. Dulles Intl-ICN Incheon Intl
15h 25mnonstop
$1,719Korean Air
Wed, Apr 14 - Wed, May 5
Korean Air Logo
10:25 am - 11:15 amICN  Incheon Intl-IAD Washington, D.C. Dulles Intl
13h 50mnonstop
Korean Air Logo
1:15 pm - 5:40 pmIAD  Washington, D.C. Dulles Intl-ICN Incheon Intl
15h 25mnonstop
$1,723Korean Air
Booking Insights

Price, demand and travel trends for Seoul to Washington, D.C. flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What is the cheapest Seoul to Washington, D.C. flight route?

Seoul Gimpo Intl Airport (GMP) to Washington, D.C. Reagan-National Airport (DCA) is the cheapest Seoul to Washington, D.C. route, averaging $792 round-trip. Other Seoul to Washington, D.C. routes average $1,086, based on KAYAK data over the past 12 months.

What's the cheapest day of the week to fly from Seoul to Washington, D.C.?

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Seoul to Washington, D.C.. It’s 17% cheaper than the average day, while Sunday is the most expensive, with prices 20% higher.

What’s the cheapest month to fly from Seoul to Washington, D.C.?

•November and December are the cheapest months to fly from Seoul to Washington, D.C. at $738 round-trip.
•July ($1,643) and March ($1,564) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 122% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Seoul to Washington, D.C. the cheapest?

Flights from Seoul to Washington, D.C. are cheapest 20 weeks before departure. Booking in this window typically costs about 27% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Expert advice

Expert advice for your flight from Seoul to Washington, D.C.

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Robert Schrader

Robert Schrader

Expert on ICN

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on IAD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more

Key details for Seoul to Washington, D.C. flights

Low season

February

Cheapest flight

$380
Beat the crowds with an average 27% drop in travelers.
The most popular month to fly with an average 34% increase in travelers.
One-way flight from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport

When to book flights from Seoul to Washington, D.C.

Are your dates flexible? Find out the best times to travel from Seoul to Washington, D.C. based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Flights from Seoul to Washington, D.C.: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from Seoul to Washington, D.C. 
tonyFlew with AIR PREMIA-Jul 2026
Air Premia is a great option. Paying for premium is worth the extra money. Additionally try to check in online if possible.
Verified travelerFlew with Korean Air-Nov 2024
Incheon has always impressed me by its cleanliness so I invariably choose Korean Air over and above others. I appreciate the 2 free checked-in luggage policy. I find the weight limit for carry-ons plus personal item a bit restrictive. I bring a laptop with an AC adapter and that alone brings my carry-on weight close to the limit. Next time, I shall try not to bring other battery chargers (the ones that are not allowed to be checked in).

Your Seoul to Washington, D.C. flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from Seoul to Washington, D.C.?

    These are the earliest and latest flight times available from Seoul to Washington, D.C.:

    • Earliest: departs at 10:15 am and lands at 11:49 pm
    • Latest: departs at 9:05 pm and lands at 10:39 am.

    The flight takes about 13h 34m.

  • What cabin classes can I book on flights from Seoul to Washington, D.C.?

    Four cabin classes are available on flights from Seoul to Washington, D.C.:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • How long is a flight from Seoul to Washington, D.C.?

    A nonstop flight from Seoul to Washington, D.C. takes 13h 34m, covering 6,933 miles.

  • Do I need a passport to fly from Seoul to Washington, D.C.?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Seoul to Washington, D.C. flight?

    Round-trip flights from Seoul to Washington, D.C. range from $845 to $1,580, with an average of $1,207 over the past 12 months. Anything below $845 counts as a good deal.

  • How expensive are last-minute Seoul to Washington, D.C. flights?

    Last-minute fares on this route (booked within two weeks of departure) run 12% above the $1,207 route average. Book 20 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from Seoul to Washington, D.C.?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $619 round-trip via Dallas/Fort Worth (DFW), compared to $1,303 for nonstop.

  • How are flight departures from Seoul to Washington, D.C. spread across the day?

    Morning is the busiest departure period on Seoul to Washington, D.C. flights, with 50% of flights leaving in that window. Night departures account for 50%, afternoon flights for 0%, and evening flights for 0%.

  • Have flight prices from Seoul to Washington, D.C. changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $862 to $5,907. That means the highest observed fare was about 7x higher than the lowest one.

  • How are flight prices from Seoul to Washington, D.C. looking right now?

    One-way fares from Seoul to Washington, D.C. are currently in line with typical prices for this route. Average one-way fares are about $881.

  • What car rental options are available in Washington, D.C.?

    Since Washington, D.C. is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
    Near Washington, D.C. Reagan-National Airport (DCA) — daily rates averaging $71:

    • Sixt
    • Dollar
    • Thrifty
    • Hertz
    • Alamo

    Near Washington, D.C. Dulles Intl Airport (IAD) — daily rates averaging $70:

    • Dollar
    • Hertz
    • Budget
    • Sixt
    • Thrifty

  • Which airports can I use when flying from Seoul to Washington, D.C.?

    Flights from Seoul to Washington, D.C. may depart from several airports in Seoul area, including Seoul Gimpo Intl (GMP) and Incheon Intl (ICN), with arrivals available at Washington, D.C. area airports such as Washington, D.C. Reagan-National (DCA) and Washington, D.C. Dulles Intl (IAD).

  • Which airports do connecting flights from Seoul to Washington, D.C. pass through?

    One-stop flights from Seoul to Washington, D.C. most commonly connect through:

    • San Francisco (SFO) - 30% of one-stop connections
    • Toronto Pearson Intl (YYZ) - 23% of one-stop connections
    • Dallas/Fort Worth (DFW) - 16% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 10% of one-stop connections

  • Can I save money by using flexible dates for flights from Seoul to Washington, D.C.?

    Yes. Flexible dates can save you up to 31% on flights from Seoul to Washington, D.C.. Tuesday is the cheapest departure day at $1,006 round-trip on average, while Sunday is the most expensive at $1,454, a difference of $448.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from Seoul to Washington, D.C.?

    2 airlines operate flights between Seoul and Washington, D.C.. The airlines offering nonstop flights on this route include:

    • Korean Air
    • AIR PREMIA

  • How much time can I save by choosing a different layover airport from Seoul to Washington, D.C.?

    Flying via Atlanta Hartsfield-Jackson (ATL) gives the shortest average 1-stop total travel time at 18h 23m, compared with 19h 20m via Toronto Pearson Intl (YYZ) and 19h 28m via Boston Logan Intl (BOS).

  • What is the time difference between Seoul and Washington, D.C.?

    Washington, D.C. is 13 hours behind Seoul (Eastern Time vs Korean Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Washington, D.C.?

    Some of the most popular sights in Washington, D.C. are Walter E. Washington Convention Center, National Mall and Capital One Arena. These are among the most viewed places in Washington, D.C. on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Seoul to Washington, D.C. flights?

    Among airlines operating Seoul to Washington, D.C. flights:

    • Korean Air: offers extra legroom; offers free seat selection
    • Delta: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Seoul to Washington, D.C. flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • AIR PREMIA: a cabin bag and a checked bag in Economy Class
    • Korean Air: a cabin bag and a checked bag in Economy Class
    • Delta: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

Your guide to booking Seoul to Washington, D.C. flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Sunday. On this route, Tuesday flights average $1,006, about $448 less than Sunday fares (31% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 20 weeks before you fly. On this route, that window historically saves about 27% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Seoul to Washington, D.C. trip for November. Fares historically average $738 round-trip in that month - typically $905 less than the most expensive month, which is July (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Dallas/Fort Worth Airport (DFW) can be cheaper than flying direct. The cheapest layover option averages $619 round-trip on this route - about $684 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Washington, D.C. Reagan-National Airport.

    • Hyatt House Washington DC The Wharf
    • Intercontinental Hotels Washington D.C. - The Wharf By IHG
    • Canopy by Hilton Washington D.C - The Wharf

More options for your flight from Seoul to Washington, D.C.

Complete your trip to Washington, D.C. with a hotel stay or car rental

Car rentals in Washington, D.C.
Hotels in Washington, D.C.
Vacations in Washington, D.C.