Book a trip from Boston to Kathmandu with Cathay Pacific , fares from USD1,672

PROMOTION CODE (OPTIONAL)

Fly Cathay Pacific from Boston (BOS) to Kathmandu (KTM). 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 Boston (BOS) to Kathmandu (KTM)?

Sep 2026
FromUSD1,672*
Seen 12 hours ago
Round trip/Economy
Oct 2026
FromUSD1,672*
Seen 16 hours ago
Round trip/Economy
Nov 2026
FromUSD1,672*
Seen 5 hours ago
Round trip/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label USD1.7K
cmp-daily-histogram-bars-legend-max-price-aria-label USD2.8K
Displaying fares for September-2026
  • BOS–KTM, 14/09/2026 – 04/10/2026: From USD1,672
    14

    Mon

    SEP

  • BOS–KTM, 15/09/2026 – 09/11/2026: From USD1,672
    15

    Tue

  • BOS–KTM, 16/09/2026 – 09/11/2026: From USD1,672
    16

    Wed

  • BOS–KTM, 17/09/2026 – 06/10/2026: From USD1,672
    17

    Thu

  • BOS–KTM, 18/09/2026 – 04/10/2026: From USD1,722
    18

    Fri

  • BOS–KTM, 19/09/2026 – 04/10/2026: From USD1,722
    19

    Sat

  • BOS–KTM, 20/09/2026 – 06/10/2026: From USD1,722
    20

    Sun

  • BOS–KTM, 21/09/2026 – 04/10/2026: From USD1,672
    21

    Mon

  • BOS–KTM, 22/09/2026 – 09/11/2026: From USD1,672
    22

    Tue

  • BOS–KTM, 23/09/2026 – 06/10/2026: From USD1,672
    23

    Wed

  • BOS–KTM, 24/09/2026 – 09/11/2026: From USD1,672
    24

    Thu

  • BOS–KTM, 25/09/2026 – 09/11/2026: From USD1,722
    25

    Fri

  • BOS–KTM, 26/09/2026 – 09/11/2026: From USD1,722
    26

    Sat

  • BOS–KTM, 27/09/2026 – 09/11/2026: From USD1,722
    27

    Sun

  • BOS–KTM, 28/09/2026 – 09/11/2026: From USD1,756
    28

    Mon

  • BOS–KTM: cmp-view-offers-disclaimer. Find offers
    29

    Tue

  • BOS–KTM, 30/09/2026 – 31/10/2026: From USD1,908
    30

    Wed

  • BOS–KTM, 01/10/2026 – 31/10/2026: From USD2,228
    01

    Thu

    OCT

  • BOS–KTM, 02/10/2026 – 31/10/2026: From USD1,874
    02

    Fri

  • BOS–KTM, 03/10/2026 – 31/10/2026: From USD2,278
    03

    Sat

  • BOS–KTM, 04/10/2026 – 31/10/2026: From USD2,278
    04

    Sun

  • BOS–KTM, 05/10/2026 – 31/10/2026: From USD2,486
    05

    Mon

  • BOS–KTM, 06/10/2026 – 31/10/2026: From USD2,840
    06

    Tue

  • BOS–KTM, 07/10/2026 – 31/10/2026: From USD2,840
    07

    Wed

  • BOS–KTM, 08/10/2026 – 31/10/2026: From USD2,840
    08

    Thu

  • BOS–KTM, 09/10/2026 – 20/01/2027: From USD2,738
    09

    Fri

  • BOS–KTM, 10/10/2026 – 20/01/2027: From USD2,738
    10

    Sat

  • BOS–KTM, 11/10/2026 – 20/01/2027: From USD2,738
    11

    Sun

  • BOS–KTM, 12/10/2026 – 20/01/2027: From USD2,688
    12

    Mon

  • BOS–KTM, 13/10/2026 – 20/01/2027: From USD2,334
    13

    Tue

    • RangeUSD1,672-USD2,840

    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 airport(s)
    • Tribhuvan International Airport (KTM)
    Aircraft Type

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

    Departure time zone
    GMT-04:00
    Arrival time zone
    GMT+05:45
    Cabin Class

    First class, Business class, Premium Economy, Economy^

    Lowest fare month
    November
    *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 Boston (BOS) to Kathmandu (KTM)

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

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    Explore flight fares from Boston (BOS) to Kathmandu (KTM)
    From
    To
    Fare Type
    Dates
    Price
    Boston (BOS)Kathmandu (KTM)Round-trip
    /
    Economy    		14/09/2026 - 04/10/2026

    From

    USD1,672

    Seen 12 hours ago

    Boston (BOS)Kathmandu (KTM)Round-trip
    /
    Economy    		16/09/2026 - 04/10/2026

    From

    USD1,672

    Seen 12 hours ago

    Boston (BOS)Kathmandu (KTM)Round-trip
    /
    Economy    		21/09/2026 - 04/10/2026

    From

    USD1,672

    Seen 12 hours ago

    Boston (BOS)Kathmandu (KTM)Round-trip
    /
    Economy    		21/09/2026 - 06/10/2026

    From

    USD1,672

    Seen 11 hours ago

    Boston (BOS)Kathmandu (KTM)Round-trip
    /
    Economy    		21/10/2026 - 20/01/2027

    From

    USD1,672

    Seen 16 hours ago

    Boston (BOS)Kathmandu (KTM)Round-trip
    /
    Economy    		16/09/2026 - 06/10/2026

    From

    USD1,672

    Seen 11 hours ago

    Boston (BOS)Kathmandu (KTM)Round-trip
    /
    Economy    		17/09/2026 - 06/10/2026

    From

    USD1,672

    Seen 11 hours ago

    Boston (BOS)Kathmandu (KTM)Round-trip
    /
    Economy    		17/09/2026 - 04/10/2026

    From

    USD1,672

    Seen 12 hours ago

    Boston (BOS)Kathmandu (KTM)Round-trip
    /
    Economy    		21/09/2026 - 09/11/2026

    From

    USD1,672

    Seen 12 hours ago

    Boston (BOS)Kathmandu (KTM)Round-trip
    /
    Economy    		17/09/2026 - 09/11/2026

    From

    USD1,672

    Seen 12 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 Kathmandu - selected offers

    Experience refined comfort in our award-winning Business class.

    keyboard_arrow_down
    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.

    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.