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Get United's best fares today on flights from Toronto to Boston

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Low fare calendar for flights from Toronto (YYZ) to Boston (BOS)

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Lowest PriceToday
*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.

Looking for additional flights from Toronto to Boston?

FromToDatesFare TypePrice

Toronto (YYZ)

Boston (BOS)

Depart: 12/09/19

Return date 12/15/19

Roundtrip
from
$331*
Viewed:11hoursago

Toronto (YYZ)

Boston (BOS)

Depart: 12/03/19

Return date 12/09/19

Roundtrip
from
$331*
Viewed:11hoursago

Toronto (YYZ)

Boston (BOS)

Depart: 12/06/19

Return date 12/09/19

Roundtrip
from
$263*
Viewed:13hoursago

Toronto (YYZ)

Boston (BOS)

Depart: 12/05/19

Return date 12/09/19

Roundtrip
from
$277*
Viewed:13hoursago

Toronto (YYZ)

Boston (BOS)

Depart: 12/19/19

Return date 01/04/20

Roundtrip
from
$376*
Viewed:1dayago

Toronto (YYZ)

Boston (BOS)

Depart: 12/27/19

Return date 12/28/19

Roundtrip
from
$379*

Toronto (YYZ)

Boston (BOS)

Depart: 12/29/19

Return date 12/31/19

Roundtrip
from
$406*

Toronto (YYZ)

Boston (BOS)

Depart: 12/06/19

Return date 12/08/19

Roundtrip
from
$268*
Viewed:1dayago

Toronto (YYZ)

Boston (BOS)

Depart: 12/13/19

Return date 12/14/19

Roundtrip
from
$259*
Viewed:21hoursago

Toronto (YYZ)

Boston (BOS)

Depart: 11/23/19

Return date 11/28/19

Roundtrip
from
$508*
Viewed:1dayago

*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.

Weather in Boston

Thursday sky is clear
40°F 11/21/19
Friday light rain
48°F 11/22/19
Saturday sky is clear
38°F 11/23/19
Sunday heavy intensity rain
44°F 11/24/19
Monday few clouds
38°F 11/25/19
Tuesday sky is clear
41°F 11/26/19
Wednesday moderate rain
55°F 11/27/19
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