The usual round-trip price from Montreal to San Diego is about $861 CAD, based on all of our scans. The lowest price we have recorded is $612 CAD, which is 29% below the usual price. Departures in February are cheapest on average ($727 CAD) and departures in November the most expensive ($1209 CAD). Prices swing a lot on this route, so waiting for a price drop can pay off. The usual price to San Diego is lower than that of 53% of the 18 destinations we track in North America from Montreal.
No deal sent to San Diego yet
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What is the best month to fly from Montreal to San Diego? 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 | $868 | $639 | +0% | |
| February | $869 | $612 | +0% | |
| March | $868 | $680 | +0% | |
| April | $866 | $623 | +0% | |
| November | $884 | $754 | +2% | |
| December | $857 | $695 | -1% |
Which trip length is cheapest from Montreal to San Diego?
Trip length changes the price of a flight from Montreal to San Diego very little in our scans: pick the length that suits you.
Does trip length change the price by season, from Montreal to San Diego?
In every season, trip length changes the price of a flight from Montreal to San Diego very little in our scans: the gap never exceeds 4%. You can pick the length that suits you without paying more.
Each cell compares the average price of a trip length with the average of trips leaving the same day, for the month shown. Green: cheaper than usual, red: pricier. All past and current scans are grouped by month (every March together, and so on) and firm up over time.
| Trip length | January | March | April | December |
|---|---|---|---|---|
| 7 days or less | +0% | -2% | -4% | -1% |
| 8 to 10 days | +0% | -1% | +2% | +1% |
| 11 to 14 days | +0% | +3% | +3% | +0% |
When to fly from Montreal to San Diego? 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 7, 2027 is the cheapest departure date from Montreal to San Diego in our scans: $667 CAD on average, across all trip lengths and all prices recorded over time.
When to book a flight from Montreal to San Diego? Price by time before departure
Average round-trip price by how many weeks before departure the price was recorded. Read left to right: as departure gets closer, the price moves. Black dot: the cheapest lead time.
This chart is the average of all prices recorded over time, with all departure dates mixed together. It blends cheap and expensive departures (seasons), which is why its lowest point is much higher than the cheapest day in the previous chart. The next chart isolates the effect of when you book.
When to book a flight from Montreal to San Diego? Difference from the normal price
Each recorded price is compared to the average price of its own departure date, which removes the effect of seasons. Read left to right up to departure: below the green line means cheaper than usual for that date. Black dot: the cheapest lead time.
Example: -10% means that at that point, the price is on average 10% below the usual price for the same departure date.
FAQ: flights Montreal → San Diego
Is the best price from Montreal to San Diego really a good deal?
The average price across all of our Montreal → San Diego scans is $861 CAD. Our best spotted price, $612 CAD, is 29% below that average.
When is the cheapest time to fly from Montreal to San Diego?
Based on our daily scans, departures from Montreal to San Diego in February are the cheapest (average $727 CAD) and departures in November the most expensive ($1209 CAD). The chart above shows the average price day by day for the coming year.
How far in advance should I book a flight from Montreal to San Diego?
Based on our scans, prices for flights from Montreal to San Diego are lowest about 1 weeks before departure (+0% versus the normal price for the same departure date). In the final 2 weeks before departure, the difference is +0%. See the last chart above.
Which trip length is cheapest from Montreal to San Diego?
Trip length changes the price of a flight from Montreal to San Diego very little in our scans: pick the length that suits you.
How long does a deal from Montreal to San Diego 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 Diego drop?
Subscribe to En Plein Vol for free: we email flight deals from Montreal as soon as they are spotted.