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$766 Cheap Flights from Seoul (GMP) to Washington (DCA)

View $766 flight on Tue, Dec 15, 2026

Photo by Metropolitan Washington Airports Authority

Popular airlines from Gimpo Intl. Airport (GMP) to Ronald Reagan Washington National Airport (DCA)

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    • Cheap Flights from Seoul to Washington (GMP-DCA)

    Prices were available within the past 7 days and start at $766 for one-way flights and $1,604 for roundtrip, for the period specified. Prices and availability are subject to change.

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    One way

    Roundtrip

    Select Japan Airlines flight, departing Mon, Dec 21 from Seoul to Washington, returning Tue, Jan 26, priced at $1,604 Found 6 days ago

    Mon, Dec 21 - Tue, Jan 26 · GMP · DCA · Roundtrip

    Select Japan Airlines flight, departing Wed, Dec 16 from Seoul to Washington, returning Thu, Dec 31, priced at $1,606 Found 3 days ago

    Wed, Dec 16 - Thu, Dec 31 · GMP · DCA · Roundtrip

    Select Japan Airlines flight, departing Mon, Dec 21 from Seoul to Washington, returning Sun, Jan 3, priced at $1,611 Found 6 days ago

    Mon, Dec 21 - Sun, Jan 3 · GMP · DCA · Roundtrip

    Select Japan Airlines flight, departing Mon, Dec 21 from Seoul to Washington, returning Sun, Jan 3, priced at $1,613 Found 6 days ago

    Mon, Dec 21 - Sun, Jan 3 · GMP · DCA · Roundtrip

    Select Japan Airlines flight, departing Wed, Dec 16 from Seoul to Washington, returning Fri, Jan 8, priced at $1,615 Found 3 hours ago

    Wed, Dec 16 - Fri, Jan 8 · GMP · DCA · Roundtrip

    Select Japan Airlines flight, departing Mon, Dec 21 from Seoul to Washington, returning Sun, Jan 3, priced at $1,631 Found 6 days ago

    Mon, Dec 21 - Sun, Jan 3 · GMP · DCA · Roundtrip

    Select Japan Airlines flight, departing Mon, Dec 21 from Seoul to Washington, returning Sun, Jan 3, priced at $1,660 Found 6 days ago

    Mon, Dec 21 - Sun, Jan 3 · GMP · DCA · Roundtrip

    Select Japan Airlines flight, departing Mon, Dec 7 from Seoul to Washington, returning Mon, Dec 14, priced at $1,668 Found 3 days ago

    Mon, Dec 7 - Mon, Dec 14 · GMP · DCA · Roundtrip

    Select Asiana Airlines flight, departing Wed, Nov 25 from Seoul to Washington, returning Fri, Jun 4, priced at $1,753 Found 12 hours ago

    Wed, Nov 25 - Fri, Jun 4 · GMP · DCA · Roundtrip

    Select All Nippon Airways flight, departing Thu, Dec 24 from Seoul to Washington, returning Thu, Dec 31, priced at $1,934 Found 3 days ago

    Thu, Dec 24 - Thu, Dec 31 · GMP · DCA · Roundtrip

    Alternative airports near Washington

    Prices were available within the past 7 days. Prices and availability are subject to change.

    Select flight to Baltimore Washington Intl. Thurgood Marshall BWI. Average driving time to city center is 40 minutes.

    40 min · Search flights

    Select flight to Washington Dulles Intl. IAD. Average driving time to city center is 36 minutes.

    36 min · Search flights

    Select flight to Martin State MTN. Average driving time to city center is 1 hour 6 minutes.

    1 h 6 min · Search flights

    Select flight to Manassas Regional MNZ. Average driving time to city center is 45 minutes.

    45 min · Search flights

    Select flight to Montgomery County Airpark GAI. Average driving time to city center is 41 minutes.

    41 min · Search flights

    Select flight to College Park, MD CGS. Average driving time to city center is 16 minutes.

    16 min · Search flights

    Book with confidence

    Seoul to Washington Flights

    The cheapest times to fly from Seoul to Washington

    On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seoul to Washington are during the month of December. You can find some of the cheapest flights from Seoul to Washington with Expedia's search tool and vast selection of airlines.

    The best time to book a flight from Seoul to Washington

    Sunday is one of the best days to book for cheap flights from Seoul to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

    How to find cheap round-trip tickets from Seoul to Washington

    Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seoul to Washington in 2026. You can also book with separate airlines for your outbound and return journeys, from $766 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

    Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seoul to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

    You could also save big by booking one of Expedia's vacation packages. Bundling together your Seoul to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

    *Terms apply.

    Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

    Travel information

    Origin airportGimpo Intl. Airport
    Destination airportRonald Reagan Washington National Airport
    Distance6,943 miles away
    Airlines servingJapan Airlines, All Nippon Airways
    Popular airlineJapan Airlines
    Roundtrip price$1,604

    *Available to One Key members.