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IAD - SEL

$388 Find Cheap Flights from Washington Dulles Airport to Seoul - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$991
Typical prices: $1,188-$1,754
AIR PREMIA
Thu 11/1Thu 11/8
IAD - ICN • Non-stop
Cheapest non-stop
$993
Typical prices: $1,205-$1,761
AIR PREMIA
Fri 11/16Tue 12/4
IAD - ICN • Non-stop
Nonstop flights
Every day
You can fly direct with Korean Air and AIR PREMIA. Average duration is 15h 46m
Direct flights
+1
Direct flights
+1
Top routes
IAD - ICN
Cheapest • 40% average savings
IAD - GMP
Most popular
Insights
Insights
When to book
11 weeks
in advance
Our data shows that travelers who book at least 11 weeks in advance save around 22% compared to booking last minute.
Insights
Insights
When to travel
January
Cheapest • 20% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Beijing Capital (PEK)
Cheapest • Avg $942 (round-trip)
Toronto Pearson Intl (YYZ)
Shortest trip • 17h 39m (one-way)
Insights
Insights
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Flight Deals

Cheap Flights from Dulles Intl to Seoul (IAD-SEL)

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

Recent round-trip flight deals from Dulles Intl to Seoul

Wed, Nov 4 - Wed, Nov 11
Multiple Airlines Logo
11:35 pm - 5:25 amIAD  Washington, D.C. Dulles Intl-ICN Incheon Intl
15h 50mnonstop
Multiple Airlines Logo
7:45 pm - 11:36 amICN  Incheon Intl-IAD Washington, D.C. Dulles Intl
29h 51m2 stops San Francisco Dallas/Fort Worth
$991Multiple Airlines
Sun, Nov 1 - Sun, Nov 8
Multiple Airlines Logo
11:35 pm - 5:25 amIAD  Washington, D.C. Dulles Intl-ICN Incheon Intl
15h 50mnonstop
Multiple Airlines Logo
8:40 pm - 5:43 pmICN  Incheon Intl-IAD Washington, D.C. Dulles Intl
35h 03m2 stops Vancouver Intl Toronto Pearson Intl
$991Multiple Airlines
Mon, Nov 9 - Wed, Nov 18
EVA Air Logo
11:55 pm - 6:45 pmIAD  Washington, D.C. Dulles Intl-ICN Incheon Intl
28h 50m1 stop Taipei City Taiwan Taoyuan Intl
EVA Air Logo
11:40 am - 8:55 pmICN  Incheon Intl-IAD Washington, D.C. Dulles Intl
23h 15m1 stop Taipei City Taiwan Taoyuan Intl
$992EVA Air
Wed, Nov 25 - Wed, Dec 2
EVA Air Logo
11:55 pm - 6:45 pmIAD  Washington, D.C. Dulles Intl-ICN Incheon Intl
28h 50m1 stop Taipei City Taiwan Taoyuan Intl
EVA Air Logo
11:40 am - 8:55 pmICN  Incheon Intl-IAD Washington, D.C. Dulles Intl
23h 15m1 stop Taipei City Taiwan Taoyuan Intl
$992EVA Air
Mon, Nov 16 - Fri, Dec 4
AIR PREMIA Logo
11:35 pm - 5:25 amIAD  Washington, D.C. Dulles Intl-ICN Incheon Intl
15h 50mnonstop
AIR PREMIA Logo
9:05 pm - 8:35 pmICN  Incheon Intl-IAD Washington, D.C. Dulles Intl
13h 30mnonstop
$993AIR PREMIA
Wed, Nov 4 - Wed, Nov 18
AIR PREMIA Logo
11:35 pm - 5:25 amIAD  Washington, D.C. Dulles Intl-ICN Incheon Intl
15h 50mnonstop
AIR PREMIA Logo
9:05 pm - 8:35 pmICN  Incheon Intl-IAD Washington, D.C. Dulles Intl
13h 30mnonstop
$994AIR PREMIA
Mon, Nov 16 - Thu, Nov 19
Turkish Airlines Logo
1:30 pm - 8:55 amIAD  Washington, D.C. Dulles Intl-ICN Incheon Intl
29h 25m1 stop Istanbul
Turkish Airlines Logo
12:05 am - 7:25 pmICN  Incheon Intl-IAD Washington, D.C. Dulles Intl
33h 20m1 stop Istanbul
$1,012Turkish Airlines
Mon, Nov 23 - Thu, Nov 26
Turkish Airlines Logo
9:20 pm - 8:55 amIAD  Washington, D.C. Dulles Intl-ICN Incheon Intl
21h 35m1 stop Istanbul
Turkish Airlines Logo
12:05 am - 11:45 amICN  Incheon Intl-IAD Washington, D.C. Dulles Intl
25h 40m1 stop Istanbul
$1,012Turkish Airlines
Sun, Nov 8 - Wed, Nov 18
Air Canada Logo
5:46 pm - 5:10 pmIAD  Washington, D.C. Dulles Intl-ICN Incheon Intl
33h 24m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl
Air Canada Logo
6:55 pm - 11:28 amICN  Incheon Intl-IAD Washington, D.C. Dulles Intl
30h 33m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl
$1,140Air Canada
Wed, Jan 13 - Wed, Jan 20
Air Canada Logo
5:45 pm - 5:10 pmIAD  Washington, D.C. Dulles Intl-ICN Incheon Intl
33h 25m2 stops Montreal Pierre Elliott Trudeau Intl Vancouver Intl
Air Canada Logo
6:55 pm - 11:34 amICN  Incheon Intl-IAD Washington, D.C. Dulles Intl
30h 39m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl
$1,140Air Canada
Booking Insights

Price, demand and travel trends for Washington, D.C. Dulles Intl Airport to Seoul 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 Washington, D.C. Dulles Intl Airport to Seoul flight route?

Washington, D.C. Dulles Intl Airport (IAD) to Incheon Intl Airport (ICN) is the cheapest Washington, D.C. Dulles Intl Airport to Seoul route, averaging $1,478 round-trip. Other Washington, D.C. Dulles Intl Airport to Seoul routes average $3,455, based on KAYAK data over the past 12 months.

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

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Washington, D.C. Dulles Intl Airport to Seoul. It’s 7% cheaper than the average day, while Saturday is the most expensive, with prices 13% higher.

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

•January is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Seoul at $1,176 round-trip.
•December ($1,987) and June ($1,668) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 68% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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

Flights from Washington, D.C. Dulles Intl Airport to Seoul are cheapest 11 weeks before departure. Booking in this window typically costs about 22% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals
Expert advice

Expert advice for your flight from Dulles Intl to Seoul

 
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 Washington, D.C. Dulles Intl Airport to Seoul flights

Low season

January

Cheapest flight

$388
Beat the crowds with an average 75% drop in travelers.
The most popular month to fly with an average 62% increase in travelers.
One-way flight from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport

When to book flights from Dulles Intl to Seoul

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

Your Washington, D.C. Dulles Intl Airport to Seoul 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 Washington, D.C. Dulles Intl Airport to Seoul?

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

    • Earliest: departs at 12:35 am and lands at 4:21 pm
    • Latest: departs at 11:35 pm and lands at 3:21 pm.

    The flight takes about 15h 46m.

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

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

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

    Prices vary by airline.

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

    A nonstop flight from Washington, D.C. Dulles Intl Airport to Seoul takes 15h 46m, covering 6,923 miles.

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

    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 Washington, D.C. Dulles Intl Airport to Seoul flight?

    Round-trip flights from Washington, D.C. Dulles Intl Airport to Seoul range from $1,188 to $1,754, with an average of $1,478 over the past 12 months. Anything below $1,188 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 17% above the $1,478 route average. Book 11 weeks before departure for the lowest fares.

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

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $942 round-trip via Beijing Capital (PEK), compared to $1,495 for nonstop.

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

    Morning is the busiest departure period on Washington, D.C. Dulles Intl Airport to Seoul flights, with 100% of flights leaving in that window. Afternoon departures account for 0%, evening flights for 0%, and night flights for 0%.

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

    One-way fares from Washington, D.C. Dulles Intl Airport to Seoul are currently lower than usual. Average one-way flight prices are about $540, which is 25% below the typical average for this route.

  • What car rental options are available in Seoul?

    Since Seoul is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
    Near Incheon Intl Airport (ICN) — daily rates from around $12:

    • WECAR
    • Wheego
    • Yesaway
    • Alamo
    • Enterprise Rent-A-Car

    Near Seoul Gimpo Intl Airport (GMP) — daily rates from around $12:

    • Wheego
    • Yesaway
    • Hi Rent
    • Europcar
    • Cartago Rent A Car

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

    Flights from Washington, D.C. Dulles Intl Airport to Seoul usually depart from Washington, D.C. Dulles Intl (IAD) and may arrive at several airports in Seoul area, including Seoul Gimpo Intl (GMP) and Incheon Intl (ICN).

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

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

    • Istanbul (IST) - 29% of one-stop connections
    • Taipei City Taiwan Taoyuan Intl (TPE) - 21% of one-stop connections
    • Dallas/Fort Worth (DFW) - 13% of one-stop connections
    • San Francisco (SFO) - 10% of one-stop connections

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

    Yes. Flexible dates can save you up to 19% on flights from Washington, D.C. Dulles Intl Airport to Seoul. Wednesday is the cheapest departure day at $1,379 round-trip on average, while Saturday is the most expensive at $1,683, a difference of $304.

    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 Washington, D.C. Dulles Intl Airport to Seoul?

    2 airlines operate flights between Washington, D.C. Dulles Intl Airport and Seoul. 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 Washington, D.C. Dulles Intl Airport to Seoul?

    Flying via Toronto Pearson Intl (YYZ) gives the shortest average 1-stop total travel time at 17h 39m, compared with 18h 23m via Atlanta Hartsfield-Jackson (ATL) and 18h 24m via Newark (EWR).

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

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

  • What popular places can I visit in Seoul?

    Some of the most popular sights in Seoul are Dongdaemun Market and COEX Convention and Exhibition Center. These are among the most viewed places in Seoul on KAYAK.

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

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

    • AIR PREMIA: offers extra legroom; offers free seat selection
    • 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 Washington, D.C. Dulles Intl Airport to Seoul 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 Washington, D.C. Dulles Intl Airport to Seoul 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 Wednesday departure and avoid flying on Saturday. On this route, Wednesday flights average $1,379, about $304 less than Saturday fares (18% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 11 weeks before you fly. On this route, that window historically saves about 22% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Washington, D.C. Dulles Intl Airport to Seoul trip for January. Fares historically average $1,176 round-trip in that month - typically $811 less than the most expensive month, which is December (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Beijing Capital Airport (PEK) can be cheaper than flying direct. The cheapest layover option averages $942 round-trip on this route - about $553 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, hotels close to the airport you're flying into can be a convenient option.

    Near Incheon Intl Airport

    • Grand Hyatt Incheon
    • Best Western Premier Incheon Airport
    • Hotel Ora Incheon

    Near Seoul Gimpo Intl Airport

    • Intercity Seoul Hotel
    • The First Stay Hotel
    • Hotel M Felice

More options for your flight from Dulles Intl to Seoul

Complete your trip to Seoul with a hotel stay or car rental

Car rentals in Seoul
Hotels in Seoul
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