The usual round-trip price from Montreal to Seattle is about $1037 CAD, based on all of our scans. The lowest price we have recorded is $906 CAD, which is 13% below the usual price. Departures in April are cheapest on average ($967 CAD) and departures in November the most expensive ($1204 CAD). Prices are fairly stable on this route: the gap between a cheap date and an expensive one stays small. The usual price to Seattle is higher than that of 56% of the 17 destinations we track in North America from Montreal.
No deal sent to Seattle yet
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What is the best month to fly from Montreal to Seattle? 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 | $1039 | $906 | +0% | |
| February | $1042 | $964 | +0% | |
| March | $1038 | $964 | +0% | |
| April | $1040 | $964 | +0% | |
| November | $1050 | $940 | +1% | |
| December | $1031 | $964 | -1% |
When to fly from Montreal to Seattle? 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.
Jan 19, 2027 is the cheapest departure date from Montreal to Seattle in our scans: $935 CAD on average, across all trip lengths and all prices recorded over time.
FAQ: flights Montreal → Seattle
Is the best price from Montreal to Seattle really a good deal?
The average price across all of our Montreal → Seattle scans is $1037 CAD. Our best spotted price, $906 CAD, is 13% below that average.
When is the cheapest time to fly from Montreal to Seattle?
Based on our daily scans, departures from Montreal to Seattle in April are the cheapest (average $967 CAD) and departures in November the most expensive ($1204 CAD). The chart above shows the average price day by day for the coming year.
How long does a deal from Montreal to Seattle 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 Seattle drop?
Subscribe to En Plein Vol for free: we email flight deals from Montreal as soon as they are spotted.