SEL - WAS

$530 Find Cheap Flights from Seoul to Washington, D.C. - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$957
Typical prices: $789-$1,547
Multiple Airlines
Fri 10/5Fri 10/19
ICN - IAD • 2 stops
Cheapest non-stop
$1,098
Typical prices: $1,066-$1,675
AIR PREMIA
Fri 10/5Fri 10/19
ICN - IAD • Non-stop
Nonstop flights
Every day
You can fly direct with Korean Air and AIR PREMIA. Average duration is 13h 38m
Direct flights
+1
Direct flights
+1
Top routes
GMP - DCA
Cheapest • 18% 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 • 52% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Dallas/Fort Worth (DFW)
Cheapest • Avg $671 (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
Booking Insights
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, Oct 28 - Wed, Nov 11
Multiple Airlines Logo
9:55 pm - 10:21 amICN  Incheon Intl-IAD Washington, D.C. Dulles Intl
49h 26m2 stops Newark Orlando
Multiple Airlines Logo
11:35 pm - 5:25 amIAD  Washington, D.C. Dulles Intl-ICN Incheon Intl
15h 50mnonstop
$958Multiple Airlines
Wed, Oct 28 - Wed, Nov 11
Multiple Airlines Logo
9:55 pm - 5:12 pmICN  Incheon Intl-IAD Washington, D.C. Dulles Intl
32h 17m2 stops Newark Atlanta Hartsfield-Jackson
Multiple Airlines Logo
11:35 pm - 5:25 amIAD  Washington, D.C. Dulles Intl-ICN Incheon Intl
15h 50mnonstop
$991Multiple Airlines
Sun, Oct 25 - Sun, Nov 1
AIR PREMIA Logo
9:05 pm - 9:35 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
$1,188AIR PREMIA
Sun, Oct 25 - Fri, Nov 6
AIR PREMIA Logo
9:05 pm - 9:35 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
$1,188AIR PREMIA
Sun, Dec 13 - Sun, Feb 7
United Airlines Logo
6:30 pm - 11:00 pmICN  Incheon Intl-IAD Washington, D.C. Dulles Intl
42h 30m1 stop Newark
United Airlines Logo
4:10 pm - 5:40 amIAD  Washington, D.C. Dulles Intl-ICN Incheon Intl
23h 30m1 stop San Francisco
$1,251United Airlines
Sat, Dec 12 - Mon, Feb 8
United Airlines Logo
6:30 pm - 11:00 pmICN  Incheon Intl-IAD Washington, D.C. Dulles Intl
42h 30m1 stop Newark
United Airlines Logo
4:10 pm - 5:40 amIAD  Washington, D.C. Dulles Intl-ICN Incheon Intl
23h 30m1 stop San Francisco
$1,251United Airlines
Mon, Oct 26 - Mon, Nov 2
Delta Logo
6:40 pm - 5:45 amICN  Incheon Intl-BWI Baltimore/Washington
24h 05m1 stop Salt Lake City
Delta Logo
7:00 am - 4:20 pmBWI  Baltimore/Washington-ICN Incheon Intl
19h 20m1 stop Salt Lake City
$1,317Delta
Thu, Oct 15 - Sun, Oct 18
Delta Logo
7:00 pm - 5:45 amICN  Incheon Intl-BWI Baltimore/Washington
23h 45m2 stops Seattle/Tacoma Intl Salt Lake City
Delta Logo
7:00 am - 3:20 pmBWI  Baltimore/Washington-ICN Incheon Intl
19h 20m1 stop Salt Lake City
$1,318Delta
Tue, Oct 27 - Tue, Jan 26
Korean Air Logo
10:15 am - 10:50 amICN  Incheon Intl-IAD Washington, D.C. Dulles Intl
13h 35mnonstop
Korean Air Logo
11:50 am - 5:40 pmIAD  Washington, D.C. Dulles Intl-ICN Incheon Intl
15h 50mnonstop
$1,697Korean Air
Tue, Nov 10 - Wed, May 5
Korean Air Logo
10:15 am - 9:50 amICN  Incheon Intl-IAD Washington, D.C. Dulles Intl
13h 35mnonstop
Korean Air Logo
1:15 pm - 5:40 pmIAD  Washington, D.C. Dulles Intl-ICN Incheon Intl
15h 25mnonstop
$1,697Korean 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 from Seoul to Washington, D.C. 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 $1,058, 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.?

Tuesday is the cheapest day of the week to fly from Seoul to Washington, D.C., it is 34% cheaper than the average day. Saturday is the most expensive day with flight prices 25% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • November is the cheapest month to fly from Seoul to Washington, D.C. at $556 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 195% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices 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

$530
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly and prices are also 1% lower on average.
Flight from Incheon Intl Airport to Baltimore

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 route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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.

  • What airlines are available 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

  • 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 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 travelers should check the fare details before booking.

  • 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 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 $671 round-trip via Dallas/Fort Worth (DFW), compared to $1,343 for nonstop.

  • 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) - 41% of one-stop connections
    • Dallas/Fort Worth (DFW) - 16% of one-stop connections
    • Toronto Pearson Intl (YYZ) - 16% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 11% of one-stop connections

    San Francisco (SFO) handles the largest share of one-stop connections on this route.

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

    Yes. Being flexible with your travel dates can save you up to 47% on the Seoul to Washington, D.C. route. Tuesday is the cheapest departure day at $776 round-trip on average, while Saturday is the most expensive at $1,460, a difference of $684. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • 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 100% of flights leaving in that window. Afternoon departures account for 0%, evening flights for 0%, and night flights for 0%.

  • 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.

  • 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 10:00 am and lands at 11:38 pm
    • Latest: departs at 9:05 pm and lands at 10:43 am.

    The flight takes about 13h 38m.

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

    Last-minute fares on this route - booked within 2 weeks of departure - run 5% above the route average of $1,162. Book 20 weeks before departure for the lowest fares.

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

    A nonstop flight from Seoul to Washington, D.C. takes 13h 38m, 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 are flight prices from Seoul to Washington, D.C. looking right now?

    One-way fares from Seoul to Washington, D.C. are currently higher than usual. Average one-way flight prices are about $931, which is 9% above the typical average for this route.

  • 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 18h 36m 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 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 from around $23:

    • Sixt
    • Dollar
    • Thrifty
    • Alamo
    • Budget

    Near Washington, D.C. Dulles Intl Airport (IAD) — daily rates from around $24:

    • Dollar
    • Budget
    • Hertz
    • Sixt
    • Thrifty

  • 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 $789 to $1,547, with an average of $1,162 over the past 12 months. Anything below $789 counts as a good deal.

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 can be flexible, aim for a Tuesday departure instead of Saturday. On this route, Tuesday flights average $776 - about $684 less than Saturday (47% 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 $556 round-trip in that month - typically $1,087 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 $671 round-trip on this route - about $672 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
    - Pendry Washington DC - 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.