Flights from Toronto to Boston from $ 280*

Promotion Code

Changed bag rules and optional services         Cruise Packages

Featured daily fares for flights from Toronto (YYZ) to Boston (BOS)

Apr 2026
From$ 513*
Viewed: 5 hours ago
RoundTrip|Economy
May 2026
From$ 280*
Viewed: 1 day ago
RoundTrip|Economy
Jun 2026
From$ 363*
Viewed: 22 hours ago
RoundTrip|Economy
$ 312
Displaying fares for April-2026
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    • Range$ 312-$ 565

    *Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.

    More United deals on Toronto (YYZ) to Boston (BOS) flights

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    More United deals on Toronto (YYZ) to Boston (BOS) flights
    From
    To
    Fare Type
    Dates
    Price
    Toronto (YYZ)Boston (BOS)Roundtrip
    |
    Economy    		05/13/26 - 05/15/26

    from

    $ 312

    Viewed: 10 hours ago

    Toronto (YYZ)Boston (BOS)Roundtrip
    |
    Economy    		05/26/26 - 05/31/26

    from

    $ 312

    Viewed: 8 hours ago

    Toronto (YYZ)Boston (BOS)Roundtrip
    |
    Economy    		05/13/26 - 05/15/26

    from

    $ 319

    Viewed: 10 hours ago

    Toronto (YYZ)Boston (BOS)Roundtrip
    |
    Economy    		06/02/26 - 06/05/26

    from

    $ 435

    Viewed: 10 hours ago

    Toronto (YYZ)Boston (BOS)Roundtrip
    |
    Economy    		04/22/26 - 04/29/26

    from

    $ 513

    Viewed: 5 hours ago

    Toronto (YYZ)Boston (BOS)Roundtrip
    |
    Economy    		04/22/26 - 04/29/26

    from

    $ 544

    Viewed: 5 hours ago

    Toronto (YYZ)Boston (BOS)Roundtrip
    |
    Economy    		05/23/26 - 05/25/26

    from

    $ 280

    Viewed: 1 day ago

    Toronto (YYZ)Boston (BOS)Roundtrip
    |
    Economy    		05/23/26 - 05/25/26

    from

    $ 312

    Viewed: 1 day ago

    *Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.

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