Book a trip from Seoul to Boston with Cathay Pacific , fares from KRW2,289,400

PROMOTION CODE (OPTIONAL)

Fly Cathay Pacific from Seoul (ICN) to Boston (BOS). Enjoy award-winning service, entertainment, and an enhanced menu for Premium Economy and Business class during your flight. Book direct to secure our best fare and join as a Cathay member to earn Status Points or Miles.

When is the best time to fly from Seoul (ICN) to Boston (BOS)?

cmp-daily-histogram-bars-legend-min-price-aria-label KRW2.3M
cmp-daily-histogram-bars-legend-max-price-aria-label KRW3.5M
Displaying fares for November-2026
  • ICN–BOS: cmp-view-offers-disclaimer. Find offers
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    NOV

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  • ICN–BOS, 26/11/2026 – 30/12/2026: From KRW2,289,400
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  • ICN–BOS, 27/11/2026 – 30/12/2026: From KRW2,289,400
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  • ICN–BOS, 28/11/2026 – 30/12/2026: From KRW3,463,900
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  • ICN–BOS, 29/11/2026 – 30/12/2026: From KRW2,933,900
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  • ICN–BOS, 30/11/2026 – 30/12/2026: From KRW2,446,700
    30

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  • ICN–BOS, 01/12/2026 – 30/12/2026: From KRW2,289,400
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    DEC

  • ICN–BOS, 02/12/2026 – 30/12/2026: From KRW2,289,400
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  • ICN–BOS, 03/12/2026 – 30/12/2026: From KRW2,289,400
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  • ICN–BOS, 04/12/2026 – 30/12/2026: From KRW2,289,400
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  • ICN–BOS, 05/12/2026 – 30/12/2026: From KRW2,289,400
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  • ICN–BOS, 06/12/2026 – 30/12/2026: From KRW2,289,400
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  • ICN–BOS, 07/12/2026 – 30/12/2026: From KRW2,289,400
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  • ICN–BOS, 08/12/2026 – 30/12/2026: From KRW2,289,400
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  • ICN–BOS, 09/12/2026 – 30/12/2026: From KRW2,289,400
    09

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  • ICN–BOS: cmp-view-offers-disclaimer. Find offers
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  • RangeKRW2,289,400-KRW3,463,900

    Travel Destination Facts

    Aircraft Type

    Boeing 777, Airbus A321neo, Airbus A330 and Airbus A350 aircraft*

    Departure time zone
    Asia-Pacific/Seoul GMT+09:00
    Arrival time zone
    The Americas/Boston GMT-05:00
    Cabin Class

    First class, Business class, Premium Economy, Economy^

    Lowest fare month
    March

    Explore flight fares from Seoul (ICN) to Boston (BOS)

    Make flexible bookings with Cathay Pacific and enjoy hassle-free travel when plans change.

    KRW
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    Explore flight fares from Seoul (ICN) to Boston (BOS)
    From
    To
    Fare Type
    Dates
    Price
    Seoul (ICN)Boston (BOS)Round-trip
    /
    Economy
    02/12/2026 - 30/12/2026

    From

    KRW2,289,400

    Seen 21 hours ago

    Seoul (ICN)Boston (BOS)Round-trip
    /
    Economy
    06/12/2026 - 30/12/2026

    From

    KRW2,289,400

    Seen 21 hours ago

    Seoul (ICN)Boston (BOS)Round-trip
    /
    Economy
    26/11/2026 - 30/12/2026

    From

    KRW2,289,400

    Seen 21 hours ago

    Seoul (ICN)Boston (BOS)Round-trip
    /
    Economy
    27/11/2026 - 30/12/2026

    From

    KRW2,289,400

    Seen 21 hours ago

    Seoul (ICN)Boston (BOS)Round-trip
    /
    Economy
    03/12/2026 - 30/12/2026

    From

    KRW2,289,400

    Seen 21 hours ago

    Seoul (ICN)Boston (BOS)Round-trip
    /
    Economy
    04/12/2026 - 30/12/2026

    From

    KRW2,289,400

    Seen 21 hours ago

    Seoul (ICN)Boston (BOS)Round-trip
    /
    Economy
    09/12/2026 - 30/12/2026

    From

    KRW2,289,400

    Seen 21 hours ago

    Seoul (ICN)Boston (BOS)Round-trip
    /
    Economy
    01/12/2026 - 30/12/2026

    From

    KRW2,289,400

    Seen 21 hours ago

    Seoul (ICN)Boston (BOS)Round-trip
    /
    Economy
    05/12/2026 - 30/12/2026

    From

    KRW2,289,400

    Seen 21 hours ago

    Seoul (ICN)Boston (BOS)Round-trip
    /
    Economy
    07/12/2026 - 30/12/2026

    From

    KRW2,289,400

    Seen 21 hours ago

    Lowest fares on flights found by other customers on Cathay Pacific’s official website in the last 48 hours. All fares are subject to change at any time. Other Cathay Pacific Terms & Conditions apply. Flights are subject to regulatory approval.

    Book Business Class flights to Boston - selected offers

    Experience refined comfort in our award-winning Business class.

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    Lowest fares on flights found by other customers on Cathay Pacific’s official website in the last 48 hours. All fares are subject to change at any time. Other Cathay Pacific Terms & Conditions apply. Flights are subject to regulatory approval.

    Flights from Seoul ICN to Boston BOS

    The city of Boston is famous for its role in the start of the United States of America. The city also played active roles in the Civil War and anti-slavery movements. Fly to the state capital of Massachusetts with Cathay Pacific and take a fascinating step back in time once you land. Upgrade to Premium Economy, Business, or First Class for your long-haul Boston flight and enjoy premium offerings.

    Travel in Boston

    One of the top tourist destinations in America, stroll the Freedom Trail to understand the important events that took place in Boston starting in the mid-1770s. It leads past 16 historical sites, including Faneuil Hall, Bunker Hill Monument, the site of the Boston Massacre, and Paul Revere’s House. Explore the many museums in Boston. Other attractions include the Boston Harbour Islands State Park, Quincy Market, Boston Common, and the Prudential Center Skywalk Observatory.

    Boston Tips

    Save money on sites with the Boston CityPass. Stroll the windy, historic streets for historic atmosphere – many places are easy to reach on foot. Local public transport is efficient and extensive, including buses and underground subway. Travel well when you book your Boston flights with Cathay Pacific today.