Book United Toronto to Boston flight deals from $417

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Downtown Boston viewed from the harbor

Plan ahead for flights from Toronto to Boston

from
to
Type
Dates
Price*
Toronto (YYZ)
to Boston (BOS)
Roundtrip
Depart Fri 5 Oct 2018
Return Mon 8 Oct 2018
from$ 417*Viewed: 11 hours ago
*Prices have been available for round trips within the last 48 hours and may not be currently available. 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.