ICN - WAS

$378 Find Cheap Flights from Seoul Incheon Airport to Washington, D.C. - Compare and Save

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Everything you should know

Cheapest round-trip
$877
Typical prices: $849-$1,580
Air China, AIR PREMIA
Tue 11/20Tue 11/27
ICN - IAD • 1 stop
Cheapest non-stop
$1,162
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
ICN - DCA
Cheapest • 13% average savings
ICN - IAD
Most popular
Insights
Insights
Avoid delays
AIR PREMIA
Most punctual • 94% on-time
Morning
Best time • Fewest delays
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
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Incheon Intl to Washington, D.C. (ICN-WAS)

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

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

Fri, Nov 20 - Fri, Nov 27
Multiple Airlines Logo
1:10 pm - 6:30 pmICN  Incheon Intl-IAD Washington, D.C. Dulles Intl
19h 20m1 stop Beijing Capital
Multiple Airlines Logo
11:35 pm - 5:25 amIAD  Washington, D.C. Dulles Intl-ICN Incheon Intl
15h 50mnonstop
$877Multiple Airlines
Fri, Dec 18 - Sun, Jan 17
Multiple Airlines Logo
1:10 pm - 6:30 pmICN  Incheon Intl-IAD Washington, D.C. Dulles Intl
19h 20m1 stop Beijing Capital
Multiple Airlines Logo
11:35 pm - 5:25 amIAD  Washington, D.C. Dulles Intl-ICN Incheon Intl
15h 50mnonstop
$901Multiple 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
$1,162AIR PREMIA
Fri, Nov 20 - Sun, Dec 6
United Airlines Logo
12:45 pm - 5:43 amICN  Incheon Intl-BWI Baltimore/Washington
30h 58m1 stop San Francisco
United Airlines Logo
6:35 pm - 5:40 amBWI  Baltimore/Washington-ICN Incheon Intl
21h 05m1 stop San Francisco
$1,167United Airlines
Mon, Nov 9 - Tue, Dec 1
United Airlines Logo
6:30 pm - 12:37 amICN  Incheon Intl-IAD Washington, D.C. Dulles Intl
44h 07m2 stops Newark Houston George Bush Intcntl
United Airlines Logo
5:46 pm - 4:15 pmIAD  Washington, D.C. Dulles Intl-ICN Incheon Intl
32h 29m2 stops Newark San Francisco
$1,168United Airlines
Wed, Feb 17 - Wed, Feb 24
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
$1,175AIR PREMIA
Mon, Nov 9 - Mon, Nov 23
Delta Logo
8:35 pm - 10:42 amICN  Incheon Intl-BWI Baltimore/Washington
28h 07m1 stop Minneapolis St Paul
Delta Logo
7:15 am - 4:20 pmBWI  Baltimore/Washington-ICN Incheon Intl
19h 05m1 stop Salt Lake City
$1,181Delta
Mon, Nov 23 - Sun, Dec 6
Delta Logo
8:35 pm - 10:42 amICN  Incheon Intl-BWI Baltimore/Washington
28h 07m1 stop Minneapolis St Paul
Delta Logo
7:20 pm - 3:50 pmBWI  Baltimore/Washington-ICN Incheon Intl
30h 30m1 stop Minneapolis St Paul
$1,181Delta
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
$1,737Korean 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
$1,738Korean Air
Booking Insights

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

Incheon Intl Airport (ICN) to Washington, D.C. Reagan-National Airport (DCA) is the cheapest Incheon Intl Airport to Washington, D.C. route, averaging $940 round-trip. Other Incheon Intl Airport to Washington, D.C. routes average $1,232, based on KAYAK data over the past 12 months.

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

•November and December are the cheapest months to fly from Incheon Intl Airport 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 Incheon Intl Airport to Washington, D.C. the cheapest?

Flights from Incheon Intl Airport 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 Incheon Intl 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 Incheon Intl Airport to Washington, D.C. flights

Low season

February

Cheapest flight

$379
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 Incheon Intl to Washington, D.C.

Are your dates flexible? Find out the best times to travel from Incheon Intl 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 Incheon Intl to Washington, D.C.: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from Incheon Intl 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 Incheon Intl Airport 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 Incheon Intl Airport to Washington, D.C.?

    These are the earliest and latest flight times available from Incheon Intl Airport 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 Incheon Intl Airport to Washington, D.C.?

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

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

    Prices vary by airline.

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

    A nonstop flight from Incheon Intl Airport to Washington, D.C. takes 13h 34m, covering 6,949 miles.

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

    Round-trip flights from Incheon Intl Airport to Washington, D.C. range from $849 to $1,580, with an average of $1,209 over the past 12 months. Anything below $849 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 12% above the $1,209 route average. Book 20 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from Incheon Intl Airport 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 Incheon Intl Airport to Washington, D.C. spread across the day?

    Morning is the busiest departure period on Incheon Intl Airport 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 Incheon Intl Airport 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 $901 to $8,874. That means the highest observed fare was about 10x higher than the lowest one.

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

    One-way fares from Incheon Intl Airport to Washington, D.C. are currently lower than usual. Average one-way flight prices are about $762, which is 13% below the typical average for this route.

  • 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 $24:

    • Sixt
    • Dollar
    • Thrifty
    • Hertz
    • Alamo

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

    • Dollar
    • Hertz
    • Budget
    • Sixt
    • Thrifty

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

    Flights from Incheon Intl Airport to Washington, D.C. usually depart from Incheon Intl (ICN) and may arrive at several airports in Washington, D.C. area, including Washington, D.C. Reagan-National (DCA) and Washington, D.C. Dulles Intl (IAD).

  • What time of day has the fewest delays on flights from Incheon Intl Airport to Washington, D.C.?

    Morning flights have the fewest delays on this route.

  • At what point is a flight considered delayed from Incheon Intl Airport to Washington, D.C.?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Incheon Intl Airport to Washington, D.C. route, 10% of flights were delayed in the past 3 months, with delays averaging 1h 17m.

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

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

    • San Francisco (SFO) - 31% of one-stop connections
    • Toronto Pearson Intl (YYZ) - 23% of one-stop connections
    • Dallas/Fort Worth (DFW) - 17% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 11% of one-stop connections

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

    Yes. Flexible dates can save you up to 31% on flights from Incheon Intl Airport 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 Incheon Intl Airport to Washington, D.C.?

    2 airlines operate flights between Incheon Intl Airport 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 Incheon Intl Airport 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 Incheon Intl Airport and Washington, D.C.?

    Washington, D.C. is 13 hours behind Incheon Intl Airport (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 Incheon Intl Airport to Washington, D.C. flights?

    Among airlines operating Incheon Intl Airport 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 Incheon Intl Airport 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 Incheon Intl Airport 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 Incheon Intl Airport 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).
  • For the best chance of arriving on time, fly with AIR PREMIA. Over the past three months, 94% of AIR PREMIA flights from Incheon Intl Airport to Washington, D.C. arrived on time, slightly above the route average of 90%. When flights on this route arrive late, they're delayed by an average of 1h 17m, so choosing an airline with strong on-time performance can make a difference if you're on a tight schedule.
  • 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

Prefer to fly direct from Seoul Incheon Airport to Washington, D.C.?

 
Find which airlines fly direct from Incheon Intl Airport to Washington, D.C., which days they fly and book direct flights.

Direct departures

Incheon Intl to Washington, D.C.

Monday

AIR PREMIA,Korean Air

AIR PREMIA,Korean Air

Tuesday

Korean Air

Korean Air

Wednesday

AIR PREMIA,Korean Air

AIR PREMIA,Korean Air

Thursday

Korean Air

Korean Air

Friday

AIR PREMIA,Korean Air

AIR PREMIA,Korean Air

Saturday

Korean Air

Korean Air

Sunday

AIR PREMIA,Korean Air

AIR PREMIA,Korean Air

See more direct flights

Direct returns

Washington, D.C. to Incheon Intl

Monday

AIR PREMIA,Korean Air

AIR PREMIA,Korean Air

Tuesday

Korean Air

Korean Air

Wednesday

AIR PREMIA,Korean Air

AIR PREMIA,Korean Air

Thursday

Korean Air

Korean Air

Friday

AIR PREMIA,Korean Air

AIR PREMIA,Korean Air

Saturday

Korean Air

Korean Air

Sunday

AIR PREMIA,Korean Air

AIR PREMIA,Korean Air

See more direct flights

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

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

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