Cheap flights from Montreal to San Jose, Costa Rica from C$506 YHU, YUL → SJO

Found recently, and the cheapest we hold

What have prices looked like?

Over 44 days, 24 Sept to 12 Nov, the cheapest return we saw each day was C$626 (US$439) to C$1,239 (US$869).

At C$1,299 (US$911), the cheapest return found recently is above that range.

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

Could nearby dates be cheaper?

We hold no other 13-night return fares leaving within 3 days of 18 Dec to compare.

Every date we hold

38 fares on 3 departure dates

Which month looks cheapest?

September 2027 is the cheapest month — from C$714 (US$501).

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 21 days, 24 Sept to 12 Nov, the cheapest one-way we saw each day was C$392 (US$275) to C$814 (US$571).

21 days is a short history, so treat this range as an early guide.

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 4 Jan 2027 to compare.

Every date we hold

6 fares on 1 departure dates

Return

The cheapest fares were 14 to 29 days before departure.

From the cheapest return each day between 24 Sept and 12 Nov (44 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

Not enough history yet: in 21 days of one-way prices, 24 Sept to 12 Nov, fewer than 3 booking ranges had prices on 7 days or more.

How much is a return flight from Montreal to San Jose?

The cheapest return found recently is C$1,299 (US$911) with avianca airlines, 18 Dec to 31 Dec, found 19 hours ago. The cheapest return we hold, of any age, is C$714 (US$501) with United Airlines, 1 Sept 2027 to 4 Sept 2027, found 6 days ago. The cheapest return fare on each of 3 departure dates is usually C$728 (US$511) to C$1,017 (US$714).

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

The cheapest one-way found recently is C$506 (US$355) with Copa Airlines, 4 Jan 2027, found 5 days ago.

What is the cheapest month to fly from Montreal to San Jose?

September 2027 is the cheapest month for a return, from C$714 (US$501), 1 Sept 2027 to 4 Sept 2027, found 6 days ago.

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

In 44 days of prices between 24 Sept and 12 Nov, return fares were cheapest 14 to 29 days before departure.

Is there a direct flight from Montreal to San Jose?

Yes, the cheapest nonstop return found recently is C$1,693 (US$1,187) with Air Transat, 18 Dec to 31 Dec, found 19 hours ago.

How long is the flight from Montreal to San Jose?

The cheapest one-way found recently, with Copa Airlines on 4 Jan 2027, takes 25 h 48 min with 1 stop, including a 18 h connection.

Which airlines have the cheapest flights from Montreal to San Jose?

Between 18 Dec and 1 Sept 2027, avianca airlines has the cheapest return on 1 of the 3 departure dates we hold, Copa Airlines on 1 and United Airlines on 1.