Book a trip from Boston to Singapore with Cathay Pacific , fares from USD1,141

DISCOUNT CODE (OPTIONAL)

Deals on Boston (BOS) to Singapore (SIN) flights

Try alternate month or interact with individual days below in order to find offers.
May 2026
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Jun 2026
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Jul 2026
FromUSD2,023*
Seen 9 hours ago
Round trip/Economy
Displaying fares for May-2026
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    • Best fares on flights found by others in the last 48 hours. (Please note that some fares may only apply when there are multiple travellers.)

    Book flights to Singapore SIN

    USD
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    Book flights to Singapore SIN
    From
    To
    Fare Type
    Dates
    Price
    Boston (BOS)Singapore (SIN)Round-trip
    /
    Economy    		08/08/2026 - 30/09/2026

    From

    USD1,473

    Seen 1 day ago

    Boston (BOS)Singapore (SIN)Round-trip
    /
    Economy    		11/09/2026 - 26/09/2026

    From

    USD1,141

    Seen 11 hours ago

    Boston (BOS)Singapore (SIN)Round-trip
    /
    Economy    		07/08/2026 - 06/09/2026

    From

    USD1,911

    Seen 23 hours ago

    Boston (BOS)Singapore (SIN)Round-trip
    /
    Economy    		26/07/2026 - 10/08/2026

    From

    USD2,023

    Seen 9 hours ago

    Book Business Class flights to Singapore - selected offers

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