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Route brief · SFO → YUL

San Francisco Montreal

found

$518

round-trip · too little price history on this route to compare

Nov 22 – Nov 29 · 7 nightsWestJet1 stop

Check this fare ↗Compare sellers →

Cached fare — the booking search re-prices live before you pay.

Destination briefYULMontrealFrench North America — cheap transatlantic fares in, and a summer festival calendar that never stops.Best windowJun–SepAirportsTrudeau (YUL)All routes into Montreal

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San Francisco (SFO)Montreal (YUL)

Trip detailsRound-trip · Economy · 1 adult
1 adult
01Fare seasonality

When this route gets cheap.

Best time to be in Montreal: Jun–Sep. Fare history for this route is still thin, so we make no seasonal call yet.

The cheapest itinerary we are tracking makes one stop and takes about 7 hours outbound, on a 7-night trip — ticketed under WestJet, which on a connecting fare need not operate every leg. At $518 for 4,071 km each way, that works out to about $64 per 1,000 km flown. That is above the $39 typical of medium-haul fares here. Across the 4 departure cities we track at a similar distance from Montreal, this fare ranks 2nd — 24% above the $419 from Los Angeles. For context, the middle fare among the 6 routes of similar length we watch out of San Francisco is $429. We have 1 month of cached prices for this route so far — not enough to call a fare cheap or expensive, so we publish the price without a percentage.

The 3 days we hold a cached fare for

Tap a date → live search

These are the only days we have a cached price for on this route so far — not the only days it flies. The search above covers any date.

Cached fares · checked 01 Sep 2026
Seasonality data is still being collected for this route — 1 month of cached prices so far, too few to chart.

Route facts

Airports
SFO · Oakland (OAK) · San José (SJC) ↔ Trudeau (YUL)
Flight time
~7 hours outbound
Distance
~4,071 km each way
Airlines on the board
WestJet
Itineraries
Connections on current fares
Best months to visit
Jun–Sep
02Good to know

SF → YUL, answered.

How far in advance should I book SF → Montreal?

We do not publish a number for this, because we cannot measure it yet. Answering it honestly means watching the same departure date on this route over many weeks as it approaches, and that archive is still filling up — so any "book N days ahead" figure here would be borrowed from somewhere else rather than measured. See /guides/what-moves-a-flight-price/ for the levers we can measure.

Are there nonstop flights from San Francisco to Montreal?

The current cheapest fares involve a connection, ticketed under WestJet. Nonstop options exist on many dates at higher prices — check the live search for your exact dates.

Are these prices guaranteed?

No — these are cached fares found on real searches (this one on September 1). Airlines reprice constantly, so the booking search re-checks the live price before you pay. Fresher finds are far more likely to still be available.

Next step

Sleeping in Montreal?

Lock the flight first — then compare stays for Nov 22 – Nov 29 · 7 nights.

Missed it?

Cached fares expire. This route has a feed of its own — follow it and the next SF → YUL drop reaches you as soon as we find it.

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