The usual round-trip price from Montreal to Washington is about $1043 CAD, based on all of our scans. The lowest price we have recorded is $964 CAD, which is 8% below the usual price. Departures in March are cheapest on average ($965 CAD) and departures in November the most expensive ($1211 CAD). Prices are fairly stable on this route: the gap between a cheap date and an expensive one stays small. The usual price to Washington is higher than that of 69% of the 17 destinations we track in North America from Montreal.
No deal sent to Washington yet
We track prices from Montreal to Washington every day. When a fare drops well below its usual level, we send it to subscribers. Subscribe to be alerted as soon as it happens.
What is the best month to fly from Montreal to Washington? 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 | $1038 | $964 | +0% | |
| February | $1039 | $964 | +0% | |
| March | $1038 | $964 | +0% | |
| November | $1047 | $1006 | +1% | |
| December | $1032 | $964 | -1% |
When to fly from Montreal to Washington? 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.
Dec 24, 2026 is the cheapest departure date from Montreal to Washington in our scans: $964 CAD on average, across all trip lengths and all prices recorded over time.
FAQ: flights Montreal → Washington
Is the best price from Montreal to Washington really a good deal?
The average price across all of our Montreal → Washington scans is $1043 CAD. Our best spotted price, $964 CAD, is 8% below that average.
When is the cheapest time to fly from Montreal to Washington?
Based on our daily scans, departures from Montreal to Washington in March are the cheapest (average $965 CAD) and departures in November the most expensive ($1211 CAD). The chart above shows the average price day by day for the coming year.
How long does a deal from Montreal to Washington 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 Washington drop?
Subscribe to En Plein Vol for free: we email flight deals from Montreal as soon as they are spotted.