Book a trip from Seoul to Boston with Cathay Pacific , fares from KRW2,064,300

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)?

Sep 2026
FromKRW2,378,000*
Seen 1 day ago
Round trip/Economy
Oct 2026
No results available
Nov 2026
FromKRW2,064,300*
Seen 16 hours ago
Round trip/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label KRW2.4M
cmp-daily-histogram-bars-legend-max-price-aria-label KRW2.5M
Displaying fares for September-2026
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  • ICN–BOS, 13/09/2026 – 27/09/2026: From KRW2,378,000
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    OCT

    • RangeKRW2,378,000-KRW2,478,000

    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.

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

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

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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    		03/11/2026 - 08/11/2026

    From

    KRW2,064,300

    Seen 16 hours ago

    Seoul (ICN)Boston (BOS)Round-trip
    /
    Economy    		16/09/2026 - 27/09/2026

    From

    KRW2,378,000

    Seen 1 day ago

    Seoul (ICN)Boston (BOS)Round-trip
    /
    Economy    		18/09/2026 - 27/09/2026

    From

    KRW2,378,000

    Seen 1 day ago

    Seoul (ICN)Boston (BOS)Round-trip
    /
    Economy    		20/09/2026 - 27/09/2026

    From

    KRW2,378,000

    Seen 1 day ago

    Seoul (ICN)Boston (BOS)Round-trip
    /
    Economy    		21/09/2026 - 27/09/2026

    From

    KRW2,378,000

    Seen 1 day ago

    Seoul (ICN)Boston (BOS)Round-trip
    /
    Economy    		19/09/2026 - 27/09/2026

    From

    KRW2,378,000

    Seen 1 day ago

    Seoul (ICN)Boston (BOS)Round-trip
    /
    Economy    		13/09/2026 - 27/09/2026

    From

    KRW2,378,000

    Seen 1 day ago

    Seoul (ICN)Boston (BOS)Round-trip
    /
    Economy    		15/09/2026 - 27/09/2026

    From

    KRW2,378,000

    Seen 1 day ago

    Seoul (ICN)Boston (BOS)Round-trip
    /
    Economy    		22/09/2026 - 27/09/2026

    From

    KRW2,378,000

    Seen 1 day ago

    Seoul (ICN)Boston (BOS)Round-trip
    /
    Economy    		23/09/2026 - 27/09/2026

    From

    KRW2,378,000

    Seen 1 day ago

    Lowest fares on round-trip 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.

    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 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.

    All fares displayed include taxes and carrier-imposed surcharges. All fares, government taxes and fees, and surcharges are subject to change at any time. For ticket cancellations, where applicable, the Hong Kong Passenger Security Charge, the Hong Kong Air Passenger Departure Tax, and the Hong Kong International Airport Construction Fee will be refunded without any administration fees.