The usual round-trip price from Montreal to San Francisco is about $878 CAD, based on all of our scans. The lowest price we have recorded is $611 CAD, which is 30% below the usual price. Departures in April are cheapest on average ($748 CAD) and departures in November the most expensive ($1203 CAD). Prices vary moderately on this route depending on the departure date and when you book. The usual price to San Francisco is higher than that of 53% of the 18 destinations we track in North America from Montreal.
No deal sent to San Francisco yet
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What is the best month to fly from Montreal to San Francisco? Price by departure month
Typical round-trip price of each month's departures, all trip lengths, from all of our past and current scans (every January pooled, and so on). Prices are compared at the same booking lead time. The difference compares each month to the average of the months shown: a negative difference means cheaper than average. These figures firm up as we collect more scans.
| Departure month | Average price | Lowest seen | Difference | |
|---|---|---|---|---|
| January | $890 | $681 | +0% | |
| February | $897 | $681 | +1% | |
| March | $888 | $681 | +0% | |
| April | $885 | $611 | -1% | |
| November | $906 | $958 | +2% | |
| December | $878 | $681 | -1% |
When to fly from Montreal to San Francisco? Average price per day
Average round-trip price per departure date, all trip lengths, from all of our scans. Green line: the average price across all of our scans. Black dot: the cheapest day.
Apr 26, 2027 is the cheapest departure date from Montreal to San Francisco in our scans: $611 CAD on average, across all trip lengths and all prices recorded over time.
FAQ: flights Montreal → San Francisco
Is the best price from Montreal to San Francisco really a good deal?
The average price across all of our Montreal → San Francisco scans is $878 CAD. Our best spotted price, $611 CAD, is 30% below that average.
When is the cheapest time to fly from Montreal to San Francisco?
Based on our daily scans, departures from Montreal to San Francisco in April are the cheapest (average $748 CAD) and departures in November the most expensive ($1203 CAD). The chart above shows the average price day by day for the coming year.
How long does a deal from Montreal to San Francisco last?
Fare deals disappear fast: we treat a deal as active for 48 hours after it is sent. After that the price may have changed.
How do I get alerted when fares from Montreal to San Francisco drop?
Subscribe to En Plein Vol for free: we email flight deals from Montreal as soon as they are spotted.