Book a trip from Phnom Penh to Boston with Cathay Pacific , fares from USD1,653

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 member to earn Status Points or Miles.

When is the best time to fly from Phnom Penh (KTI) to Boston (BOS)?

cmp-daily-histogram-bars-legend-min-price-aria-label USD1.7K
cmp-daily-histogram-bars-legend-max-price-aria-label USD2.5K
Displaying fares for August-2026
  • KTI–BOS: cmp-view-offers-disclaimer. Find offers
    06

    Thu

    AUG

  • KTI–BOS: cmp-view-offers-disclaimer. Find offers
    07

    Fri

  • KTI–BOS: cmp-view-offers-disclaimer. Find offers
    08

    Sat

  • KTI–BOS, 09/08/2026 – 05/09/2026: From USD1,703
    09

    Sun

  • KTI–BOS, 10/08/2026 – 06/09/2026: From USD1,928
    10

    Mon

  • KTI–BOS, 11/08/2026 – 05/09/2026: From USD1,928
    11

    Tue

  • KTI–BOS, 12/08/2026 – 05/09/2026: From USD2,083
    12

    Wed

  • KTI–BOS, 13/08/2026 – 05/09/2026: From USD1,828
    13

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  • KTI–BOS, 14/08/2026 – 05/09/2026: From USD1,828
    14

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  • KTI–BOS, 15/08/2026 – 06/09/2026: From USD1,928
    15

    Sat

  • KTI–BOS, 16/08/2026 – 06/09/2026: From USD1,928
    16

    Sun

  • KTI–BOS, 17/08/2026 – 06/09/2026: From USD2,083
    17

    Mon

  • KTI–BOS, 18/08/2026 – 05/09/2026: From USD2,083
    18

    Tue

  • KTI–BOS, 19/08/2026 – 05/09/2026: From USD2,083
    19

    Wed

  • KTI–BOS, 20/08/2026 – 05/09/2026: From USD2,233
    20

    Thu

  • KTI–BOS, 21/08/2026 – 06/09/2026: From USD2,483
    21

    Fri

  • KTI–BOS, 22/08/2026 – 06/09/2026: From USD2,483
    22

    Sat

  • KTI–BOS, 23/08/2026 – 06/09/2026: From USD2,283
    23

    Sun

  • KTI–BOS: cmp-view-offers-disclaimer. Find offers
    24

    Mon

  • KTI–BOS: cmp-view-offers-disclaimer. Find offers
    25

    Tue

  • KTI–BOS, 26/08/2026 – 25/09/2026: From USD1,878
    26

    Wed

  • KTI–BOS, 27/08/2026 – 25/09/2026: From USD1,878
    27

    Thu

  • KTI–BOS, 28/08/2026 – 25/09/2026: From USD1,658
    28

    Fri

  • KTI–BOS, 29/08/2026 – 25/09/2026: From USD1,878
    29

    Sat

  • KTI–BOS, 30/08/2026 – 25/09/2026: From USD1,658
    30

    Sun

  • KTI–BOS, 31/08/2026 – 25/09/2026: From USD1,878
    31

    Mon

  • KTI–BOS, 01/09/2026 – 25/09/2026: From USD1,878
    01

    Tue

    SEP

  • KTI–BOS, 02/09/2026 – 25/09/2026: From USD1,703
    02

    Wed

  • KTI–BOS, 03/09/2026 – 25/09/2026: From USD1,658
    03

    Thu

  • KTI–BOS, 04/09/2026 – 25/09/2026: From USD1,703
    04

    Fri

  • KTI–BOS, 05/09/2026 – 25/09/2026: From USD1,703
    05

    Sat

  • RangeUSD1,658-USD2,483

    Travel Destination Facts

    Destination airport(s)

    • 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^

    Lowest fare month

    January

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

    Lowest fare month for 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 Phnom Penh (KTI) to Boston (BOS)

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    Explore flight fares from Phnom Penh (KTI) to Boston (BOS)
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    To
    Fare Type
    Dates
    Price
    Phnom Penh (KTI)Boston (BOS)Round-trip
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    Economy
    07/10/2026 - 22/10/2026

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    USD1,653

    Seen 1 day ago

    Phnom Penh (KTI)Boston (BOS)Round-trip
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    Economy
    01/10/2026 - 22/10/2026

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    USD1,653

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    Phnom Penh (KTI)Boston (BOS)Round-trip
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    Economy
    06/10/2026 - 22/10/2026

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    USD1,653

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    Phnom Penh (KTI)Boston (BOS)Round-trip
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    Economy
    08/10/2026 - 22/10/2026

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    USD1,653

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    Phnom Penh (KTI)Boston (BOS)Round-trip
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    Economy
    13/10/2026 - 22/10/2026

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    USD1,653

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    Phnom Penh (KTI)Boston (BOS)Round-trip
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    Economy
    02/10/2026 - 22/10/2026

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    USD1,653

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    Phnom Penh (KTI)Boston (BOS)Round-trip
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    Economy
    03/10/2026 - 22/10/2026

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    USD1,653

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    Phnom Penh (KTI)Boston (BOS)Round-trip
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    Economy
    04/10/2026 - 22/10/2026

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    USD1,653

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    Phnom Penh (KTI)Boston (BOS)Round-trip
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    Economy
    05/10/2026 - 22/10/2026

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    USD1,653

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    Phnom Penh (KTI)Boston (BOS)Round-trip
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    Economy
    09/10/2026 - 22/10/2026

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    USD1,653

    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

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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.

    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.