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Cheap flights from San Francisco to Toronto

The cheapest round trip from San Francisco to Toronto that travelers found recently is $345 with a carry-on: a $345 fare on Porter, which usually includes a carry-on. It leaves Wed, Nov 4 and comes back Sat, Nov 7.

Live prices for Wed, Nov 4 to Sat, Nov 7

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$345Cheapest round trip, carry-on included (est.)
$380Typical round trip found recently
NovemberCheapest month in the next few, from $345
38%Of these fares are nonstop

Cheapest trips travelers found recently

LeaveReturnAirlineAirportsStopsFareCarry-on (est.)TotalLive prices
Wed, Nov 4Sat, Nov 7PorterSFO → YYZNonstop$345Included$345Live price
Sat, Oct 31Tue, Nov 3Air CanadaSFO → YYZ1 stop$348Included$348Live price
Tue, Nov 24Mon, Dec 7PorterSFO → YYZNonstop$351Included$351Live price
Fri, Feb 19Sun, Feb 28Air CanadaSFO → YTZ1 stop$374Included$374Live price
Sat, Oct 31Mon, Nov 2Air CanadaSFO → YYZ1 stop$380Included$380Live price
Fri, Oct 30Mon, Nov 2Air CanadaSFO → YYZNonstop$383Included$383Live price
Thu, Oct 22Sun, Oct 25UnitedSJC → YYZ1 stop$391Included$391Live price
Sat, Oct 17Mon, Oct 19UnitedSJC → YYZ2 stops$691Included$691Live price

Round-trip prices per person, from real fares travelers found in the last few days. Carry-on fees are our estimate for each airline, both ways. Prices change fast: check the live price before you book.

Cheapest month to fly

MonthCheapest tripFromLive prices
October 2026Sat, Oct 31 to Tue, Nov 3, 3 nights$348Live price
November 2026Wed, Nov 4 to Sat, Nov 7, 3 nights$345Live price
February 2027Fri, Feb 19 to Sun, Feb 28, 9 nights$374Live price

Bag fees on this route

What the airlines flying San Francisco to Toronto usually charge for one bag each way. Budget airlines often sell the cheapest fares and charge the most for bags, so compare the total, not the fare.

AirlineCarry-on, each wayChecked bag, each way
Air CanadaIncluded$40
PorterIncluded$40
UnitedIncluded$40

Our estimates: fees depend on the fare type and when you pay. Check the airline's own price when you book.

How these prices work

These are real round-trip fares that travelers found on Aviasales recently, not a live search, so they can change or sell out. Dipt adds an estimate of each airline's carry-on fee, so a cheap fare with expensive bags doesn't look cheaper than it is. "Live price" opens Dipt's live flight search for those dates, where you book with the airline or travel site you pick. Dipt may earn a commission when you book, at no extra cost to you (how Dipt makes money).

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