Cheap flights from Ottawa to Montreal from C$242 YOW → YUL

Found recently, and the cheapest we hold

It is also the cheapest return we hold, of any age.

What have prices looked like?

Over 41 days, 24 Sept to 12 Nov, the cheapest return we saw each day was C$425 (US$298) to C$1,136 (US$797).

At C$405 (US$284), the cheapest return found recently is below that range.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other 14-night return fares leaving within 3 days of 6 Jan 2027 to compare.

Every date we hold

3 fares on 3 departure dates

Which month looks cheapest?

January 2027 is the cheapest month — from C$405 (US$284).

Found recently, and the cheapest we hold

It is also the cheapest one-way we hold, of any age.

What have prices looked like?

Over 47 days, 24 Sept to 12 Nov, the cheapest one-way we saw each day was C$174 (US$122) to C$579 (US$406).

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other one-way fares leaving within 3 days of 9 Jun 2027 to compare.

Every date we hold

1 fares on 1 departure dates

Return

Fares 30 to 59 days before departure were typically 45% lower than 0 to 6 days before departure.

From the cheapest return each day between 24 Sept and 12 Nov (41 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

One-way

Fares 90 to 179 days before departure were typically 21% lower than 0 to 6 days before departure.

From the cheapest one-way each day between 24 Sept and 12 Nov (47 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

How much is a return flight from Ottawa to Montreal?

The cheapest return found recently is C$405 (US$284) with WestJet, 6 Jan 2027 to 20 Jan 2027, found today. The cheapest return fare on each of 3 departure dates is usually C$497 (US$349) to C$601 (US$422).

How much is a one-way flight from Ottawa to Montreal?

The cheapest one-way found recently is C$242 (US$170) with Porter Airlines Canada, 9 Jun 2027, found yesterday.

What is the cheapest month to fly from Ottawa to Montreal?

January 2027 is the cheapest month for a return, from C$405 (US$284), 6 Jan 2027 to 20 Jan 2027, found today.

How far ahead should I book a flight from Ottawa to Montreal?

In 41 days of prices between 24 Sept and 12 Nov, return fares 30 to 59 days before departure were typically 45% lower than 0 to 6 days before departure. In 47 days of prices between 24 Sept and 12 Nov, one-way fares 90 to 179 days before departure were typically 21% lower than 0 to 6 days before departure.

Is there a direct flight from Ottawa to Montreal?

Yes, the cheapest nonstop return found recently is C$590 (US$414) with Air Canada, 24 Dec to 2 Jan 2027, found 6 days ago.

How long is the flight from Ottawa to Montreal?

The cheapest one-way found recently, with Porter Airlines Canada on 9 Jun 2027, takes 5 h 18 min with 1 stop.

Which airlines have the cheapest flights from Ottawa to Montreal?

Between 24 Dec and 1 Jun 2027, Air Canada has the cheapest return on 2 of the 3 departure dates we hold, and WestJet on 1.