Flights from Canada to the United States from $ 174*
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1 Passenger, Economy
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today
today
Best prices for United flights from Canada to United States
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$
*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.
Best business class fares from Canada to the United States
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$
Vancouver (YVR)to
San Francisco (SFO)
01/22/26 - 01/26/26
Roundtrip
Business
from
$Â 337
Viewed: 1 day ago
Vancouver (YVR)to
Los Angeles (LAX)
02/21/26 - 02/28/26
Roundtrip
Business
from
$Â 605
Viewed: 9 hours ago
Toronto (YYZ)to
San Francisco (SFO)
01/25/26 - 01/27/26
Roundtrip
Business
from
$Â 841
Viewed: 8 hours ago
Toronto (YYZ)to
Newark/New York (EWR)
02/15/26 - 03/19/26
Roundtrip
Business
from
$Â 606
Viewed: 1 day ago
Toronto (YYZ)to
Chicago (ORD)
01/17/26 - 01/18/26
Roundtrip
Business
from
$Â 398
Viewed: 1 hour ago
Calgary (YYC)to
Denver (DEN)
03/02/26 - 03/04/26
Roundtrip
Business
from
$Â 659
Viewed: 5 hours ago
Toronto (YYZ)to
Los Angeles (LAX)
03/19/26 - 03/24/26
Roundtrip
Business
from
$Â 1,439
Viewed: 7 hours ago
Toronto (YYZ)to
Houston (IAH)
01/29/26 - 01/31/26
Roundtrip
Business
from
$Â 801
Viewed: 11 hours 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.