Book a trip from Phnom Penh to Boston with Cathay Pacific , fares from USD1,864

PROMOTION CODE (OPTIONAL)

Fly Cathay Pacific from Phnom Penh (KTI) 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 Pacific Member to earn Status Points or Miles.

Deals on Phnom Penh (KTI) to Boston (BOS) flights

Jul 2026
FromUSD1,864*
Seen 21 hours ago
Round trip/Economy
Aug 2026
FromUSD1,864*
Seen 21 hours ago
Round trip/Economy
Sep 2026
No results available
cmp-daily-histogram-bars-legend-min-price-aria-label USD1.9K
cmp-daily-histogram-bars-legend-max-price-aria-label USD2.0K
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    • RangeUSD1,864-USD2,019

    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.

    Travel Destination Facts

    Destination airports

    • Boston Harbor Seaplane Base (BNH)
    • Logan International Airport (BOS)

    Aircraft types

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

    Departure time zone

    GMT+07:00

    Arrival time zone

    GMT-04:00

    Cabin class

    First class, Business class, Premium Economy, Economy^

    Average flight price

    USD1,963

    *Aircraft model may vary due to operational requirements. ^Cabin class availability is subject to aircraft configuration.

    Book flights to Boston BOS

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    Book flights to Boston BOS
    From
    To
    Fare Type
    Dates
    Price
    Phnom Penh (KTI)Boston (BOS)Round-trip
    /
    Economy    		29/07/2026 - 02/09/2026

    From

    USD1,864

    Seen 21 hours ago

    Phnom Penh (KTI)Boston (BOS)Round-trip
    /
    Economy    		06/08/2026 - 02/09/2026

    From

    USD1,864

    Seen 21 hours ago

    Phnom Penh (KTI)Boston (BOS)Round-trip
    /
    Economy    		07/08/2026 - 02/09/2026

    From

    USD1,864

    Seen 21 hours ago

    Phnom Penh (KTI)Boston (BOS)Round-trip
    /
    Economy    		04/08/2026 - 02/09/2026

    From

    USD1,870

    Seen 21 hours ago

    Phnom Penh (KTI)Boston (BOS)Round-trip
    /
    Economy    		11/08/2026 - 02/09/2026

    From

    USD1,870

    Seen 21 hours ago

    Phnom Penh (KTI)Boston (BOS)Round-trip
    /
    Economy    		31/07/2026 - 02/09/2026

    From

    USD2,019

    Seen 21 hours ago

    Phnom Penh (KTI)Boston (BOS)Round-trip
    /
    Economy    		01/08/2026 - 02/09/2026

    From

    USD2,019

    Seen 21 hours ago

    Phnom Penh (KTI)Boston (BOS)Round-trip
    /
    Economy    		05/08/2026 - 02/09/2026

    From

    USD2,019

    Seen 21 hours ago

    Phnom Penh (KTI)Boston (BOS)Round-trip
    /
    Economy    		30/07/2026 - 02/09/2026

    From

    USD2,019

    Seen 21 hours ago

    Phnom Penh (KTI)Boston (BOS)Round-trip
    /
    Economy    		02/08/2026 - 02/09/2026

    From

    USD2,019

    Seen 21 hours 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

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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 Phnom Penh KTI 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.