Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Montreal to Costa Rica from C$ 210

YMQ — SJO
25 Sep — 2 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Montreal to Costa Rica

Enter your travel dates to find the best prices.

Cheapest flights from Montreal to Costa Rica

Fri 30/105:15 p.m. -
1 stop15h 35m
Fri 6/115:55 p.m. -
Nonstop5h 30m
Deal found 25/8C$ 480
Mon 2/111:10 p.m. -
1 stop26h 00m
Tue 10/113:20 p.m. -
Nonstop5h 35m
Deal found 25/8C$ 482
Sat 12/96:45 a.m. -
1 stop7h 50m
Sat 19/91:35 p.m. -
1 stop9h 02m
Deal found 24/8C$ 483
Mon 2/118:10 a.m. -
1 stop31h 00m
Tue 24/113:20 p.m. -
Nonstop5h 35m
Deal found 24/8C$ 485
Thu 26/114:15 p.m. -
1 stop15h 35m
Sat 5/124:15 p.m. -
1 stop21h 35m
Deal found 25/8C$ 486
Wed 18/116:00 a.m. -
1 stop9h 10m
Thu 26/113:20 p.m. -
Nonstop5h 35m
Deal found 25/8C$ 487
Fri 16/106:45 a.m. -
1 stop7h 40m
Sun 25/102:10 p.m. -
1 stop8h 20m
Deal found 26/8C$ 489
Fri 6/116:45 a.m. -
2 stops25h 15m
Fri 13/115:55 p.m. -
Nonstop5h 30m
Deal found 25/8C$ 490
Tue 3/116:00 a.m. -
1 stop9h 10m
Tue 24/113:20 p.m. -
Nonstop5h 35m
Deal found 24/8C$ 493
Mon 2/119:35 p.m. -
2 stops17h 35m
Fri 6/113:10 p.m. -
2 stops19h 43m
Deal found 25/8C$ 494
Wed 25/114:15 p.m. -
1 stop15h 35m
Mon 7/123:10 p.m. -
1 stop8h 20m
Deal found 25/8C$ 497
Fri 23/106:20 p.m. -
Nonstop5h 45m
Fri 30/1012:15 a.m. -
Nonstop5h 40m
Deal found 24/8C$ 554

Find flight deals from Montreal to Costa Rica

Round-trip from

C$ 480

One-way from

C$ 210

Popular in

February

Cheapest in

September

Average price

C$ 670

Good round-trip deal

C$ 628 or less

Good one-way deal

C$ 277 or less
Air Transat
  • Air Transat
  • 30/10-6/11
  • 1 total stop
  • 21h 05m total
  • Montreal to Costa Rica
Search Deals
WestJet
  • WestJet
  • 29/10
  • 1 total stop
  • 15h 35m total
  • Montreal to Costa Rica
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 94 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from Montreal (YMQ) to Costa Rica.
Search Deals
Price to beat on a one-way flight from Montreal (YMQ) to Costa Rica.
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Montreal to Costa Rica that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealSan José

YUL Montreal Pierre Elliott Trudeau Intl - SJO San José Juan Santamaria Intl

YULSJO

Montreal Pierre Elliott Trudeau Intl

Fri 13/11

4:45 p.m.-1:22 p.m.

2 stops21h 37m

San José Juan Santamaria Intl

Fri 20/11

2:25 p.m.-9:17 p.m.

2 stops29h 52m

C$ 742

MontrealSan José

YUL Montreal Pierre Elliott Trudeau Intl - SJO San José Juan Santamaria Intl

YULSJO

Montreal Pierre Elliott Trudeau Intl

Thu 29/10

6:00 a.m.-7:39 p.m.

2 stops15h 39m

San José Juan Santamaria Intl

Fri 6/11

11:28 p.m.-3:16 p.m.

2 stops14h 48m

C$ 742

MontrealLiberia

YUL Montreal Pierre Elliott Trudeau Intl - LIR Liberia

YULLIR

Montreal Pierre Elliott Trudeau Intl

Tue 17/11

4:45 p.m.-11:44 a.m.

2 stops19h 59m

Liberia

Fri 4/12

5:20 p.m.-9:01 p.m.

2 stops26h 41m

C$ 749

MontrealSan José

YUL Montreal Pierre Elliott Trudeau Intl - SJO San José Juan Santamaria Intl

YULSJO

Montreal Pierre Elliott Trudeau Intl

Thu 29/10

7:00 a.m.-7:39 p.m.

2 stops14h 39m

San José Juan Santamaria Intl

Sat 7/11

1:55 p.m.-1:28 p.m.

2 stops22h 33m

C$ 763

MontrealSan José

YUL Montreal Pierre Elliott Trudeau Intl - SJO San José Juan Santamaria Intl

YULSJO

Montreal Pierre Elliott Trudeau Intl

Fri 30/10

3:00 p.m.-11:48 a.m.

2 stops22h 48m

San José Juan Santamaria Intl

Mon 9/11

11:28 p.m.-1:28 p.m.

1 stop13h 00m

C$ 767

MontrealLiberia

YUL Montreal Pierre Elliott Trudeau Intl - LIR Liberia

YULLIR

Montreal Pierre Elliott Trudeau Intl

Mon 8/2

7:00 a.m.-11:44 a.m.

1 stop29h 44m

Liberia

Mon 22/2

8:35 a.m.-9:01 p.m.

2 stops35h 26m

C$ 770

MontrealLiberia

YUL Montreal Pierre Elliott Trudeau Intl - LIR Liberia

YULLIR

Montreal Pierre Elliott Trudeau Intl

Sat 12/12

9:15 a.m.-11:44 a.m.

2 stops27h 29m

Liberia

Wed 23/12

3:50 p.m.-9:17 p.m.

2 stops28h 27m

C$ 775

MontrealSan José

YUL Montreal Pierre Elliott Trudeau Intl - SJO San José Juan Santamaria Intl

YULSJO

Montreal Pierre Elliott Trudeau Intl

Thu 31/12

4:05 p.m.-11:50 p.m.

1 stop8h 45m

San José Juan Santamaria Intl

Thu 7/1

1:10 a.m.-12:35 a.m.

1 stop22h 25m

C$ 778

MontrealSan José

YUL Montreal Pierre Elliott Trudeau Intl - SJO San José Juan Santamaria Intl

YULSJO

Montreal Pierre Elliott Trudeau Intl

Mon 1/2

10:10 p.m.-4:20 p.m.

1 stop19h 10m

San José Juan Santamaria Intl

Sun 28/2

5:15 p.m.-8:45 p.m.

1 stop26h 30m

C$ 781

MontrealLiberia

YUL Montreal Pierre Elliott Trudeau Intl - LIR Liberia

YULLIR

Montreal Pierre Elliott Trudeau Intl

Fri 15/1

11:35 a.m.-4:35 p.m.

Nonstop6h 00m

Liberia

Mon 1/2

4:35 p.m.-7:15 p.m.

1 stop25h 40m

C$ 788

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/8

Showing 1-10 of 45 resultsSorted by cheapest first
1
2
3
...
5

Best time to book a flight from Montreal to Costa Rica

Have a flexible travel schedule? Discover the best time to fly to Costa Rica from Montreal with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Montreal to Costa Rica

What is the cheapest month to book a flight from Montreal to Costa Rica?

Currently, October is the cheapest month in which you can book a flight from Montreal to Costa Rica (average of C$ 562). Flying from Montreal to Costa Rica in December is currently the most expensive (average of C$ 870). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from YMQ to CR?

When flying from Montreal to Costa Rica, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How often are flights from Montreal to Costa Rica delayed?

About 20% of weekly flights between Montreal and Costa Rica have experienced delays in the past year, with the average delay time being 132 minutes.

What is the most punctual flight time for Montreal to Costa Rica flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Montreal to Costa Rica flights?

Over the past year, Air Transat has had the lowest number of delays on this route, with just 15% of flights being delayed.

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

To ensure you get the cheapest price possible for a flight from Montreal to Costa Rica, you should look to book at least 1 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing Costa Rica

Read through reviews of airlines operating flights from Montreal to Costa Rica, such as Air Transat,United Airlines, andWestJet. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air Transat
7.8
Good
574 reviews
Check prices

Comfort

7.3

Overall

7.8

Food

6.8

Crew

8.5

Entertainment

7.1

Boarding

8.0

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus
Air Transat
7.8
Good
574 reviews
Air Transat
7.8
Good
574 reviews
Check prices

Comfort

7.3

Overall

7.8

Food

6.8

Crew

8.5

Entertainment

7.1

Boarding

8.0

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus
United Airlines
7.4
Good
10,124 reviews
Air Transat
7.8
Good
574 reviews
Check prices

Comfort

7.3

Overall

7.8

Food

6.8

Crew

8.5

Entertainment

7.1

Boarding

8.0

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus
WestJet
7.2
Good
3,437 reviews
Air Transat
7.8
Good
574 reviews
Check prices

Comfort

7.3

Overall

7.8

Food

6.8

Crew

8.5

Entertainment

7.1

Boarding

8.0

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus
Air Canada
7.1
Good
11,539 reviews
Air Transat
7.8
Good
574 reviews
Check prices

Comfort

7.3

Overall

7.8

Food

6.8

Crew

8.5

Entertainment

7.1

Boarding

8.0

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus
Avianca
6.5
Okay
2,549 reviews
Air Transat
7.8
Good
574 reviews
Check prices

Comfort

7.3

Overall

7.8

Food

6.8

Crew

8.5

Entertainment

7.1

Boarding

8.0

Reviews

1 / 20
8.0
Excellent

Paul,Jul 2026

YUL - LGW

Had to bus to the plane which made priority boarding at the back of the bus

Related info for your journey

  • How long is the flight from Montreal to Costa Rica?

    There are many flights that can get you from Montreal to Costa Rica in 8h 45m. Fly via United Airlines or Air Transat to get the fastest option. The distance from Montreal to Costa Rica is about 4065 km. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Montreal to Costa Rica one-way?

    The cheapest airlines for a one-way flight from Montreal to Costa Rica are WestJet (C$ 208), Air Canada (C$ 229), and Avianca (C$ 231).

  • What are the most reliable airlines from Montreal to Costa Rica?

    Before booking your flight to Costa Rica from Montreal, check out the most reliable airlines to get you to your destination on time: Air Transat (53%), Air Canada Rouge (50%), Air Canada( 37%).

  • What are the cheapest flights from Montreal to Costa Rica?

    While on average a flight from Montreal to Costa Rica is generally C$ 579, our data shows the cheapest flight currently is C$ 308. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - Liberia), you can expect to pay C$ 403 for that flight.

  • Can I find deals for flights from Montreal to Costa Rica that include hotel bookings?

    Yes. In addition to deals on Montreal to Costa Rica flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Montreal to Costa Rica?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montreal to Costa Rica.

  • Can I find deals for business class flights from Montreal to Costa Rica?

    Yes. Cheapflights offers flight deals from Montreal to Costa Rica by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Montreal to Costa Rica?

    Currently, October is the cheapest month in which you can book a flight from Montreal to Costa Rica (average of C$ 562). Flying from Montreal to Costa Rica in December is currently the most expensive (average of C$ 870). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top 9 airlines flying from Montreal to Costa Rica

AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapestC$ 198AverageC$ 722FlexibilityNo cancel feeOn-time70%
Search Copa Airlines flights
Air CanadaCheapestC$ 269AverageC$ 653FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air TransatCheapestC$ 325AverageC$ 765FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
United AirlinesCheapestC$ 347AverageC$ 563FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapestC$ 349AverageC$ 721FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 397AverageC$ 622FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 412AverageC$ 601FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
AviancaCheapestC$ 417AverageC$ 616FlexibilityNo cancel feeOn-time71%
Search Avianca flights
DeltaCheapestC$ 561AverageC$ 922FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

Fly with Cheapflights

How does Cheapflights help users find flights from Montreal to Costa Rica?

When you search for this flight from Montreal to Costa Rica, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Montreal to Costa Rica?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Montreal to Costa Rica.

Can Cheapflights find flights from Montreal to Costa Rica with no change fees?

Certainly. Search results for flights to Costa Rica from Montreal shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Montreal to Costa Rica become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.