Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Montreal to Costa Rica from C$ 242

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/10. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SJO
27 Jun — 4 Jul1
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
Explore the most affordable flight options available from Montreal to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 May 2026.

Sat 24/109:20 p.m.
YUL
-
LIR
2 stops17h 35m
Air Canada
Fri 30/101:55 p.m.
LIR
-
YUL
1 stop15h 53m
Air Canada
Deal found 27/5C$ 485
Mon 26/106:45 a.m.
YUL
-
LIR
1 stop8h 44m
WestJet
Sun 1/113:20 p.m.
LIR
-
YUL
1 stop8h 13m
WestJet
Deal found 24/5C$ 487
Sat 17/107:20 p.m.
YUL
-
LIR
1 stop19h 05m
WestJet
Sun 25/102:20 p.m.
LIR
-
YUL
1 stop8h 13m
WestJet
Deal found 26/5C$ 488
Fri 23/106:45 a.m.
YUL
-
LIR
1 stop7h 40m
WestJet
Thu 5/113:20 p.m.
LIR
-
YUL
1 stop8h 13m
WestJet
Deal found 25/5C$ 489
Sat 24/107:20 p.m.
YUL
-
LIR
1 stop20h 09m
WestJet
Sat 31/102:20 p.m.
LIR
-
YUL
1 stop8h 13m
WestJet
Deal found 25/5C$ 491
Sun 6/96:45 a.m.
YUL
-
LIR
1 stop7h 40m
WestJet
Sun 13/91:15 p.m.
LIR
-
YUL
1 stop25h 30m
WestJet
Deal found 26/5C$ 492
Sun 11/106:45 a.m.
YUL
-
LIR
1 stop7h 40m
WestJet
Sat 17/101:15 p.m.
LIR
-
YUL
1 stop9h 10m
WestJet
Deal found 24/5C$ 494
Sat 10/107:20 p.m.
YUL
-
LIR
1 stop19h 05m
WestJet
Fri 16/101:15 p.m.
LIR
-
YUL
1 stop9h 10m
WestJet
Deal found 24/5C$ 495
Sun 20/96:45 a.m.
YUL
-
LIR
1 stop7h 40m
WestJet
Sun 4/101:15 p.m.
LIR
-
YUL
1 stop9h 10m
WestJet
Deal found 23/5C$ 496
Sat 24/109:30 p.m.
YUL
-
LIR
1 stop17h 25m
Air Canada
Thu 5/112:40 p.m.
LIR
-
YUL
Nonstop5h 45m
Air Canada
Deal found 27/5C$ 498
Sat 17/106:45 a.m.
YUL
-
LIR
1 stop7h 40m
WestJet
Sat 24/101:15 p.m.
LIR
-
YUL
1 stop9h 10m
WestJet
Deal found 26/5C$ 499
Sun 13/96:45 a.m.
YUL
-
LIR
1 stop7h 40m
WestJet
Sun 4/101:15 p.m.
LIR
-
YUL
1 stop9h 10m
WestJet
Deal found 27/5C$ 500

Find flight deals from Montreal to Costa Rica

Keep the following information in mind while searching for Montreal to Costa Rica flight deals. Data was last updated 28 May 2026.

Round-trip from

C$ 485

One-way from

C$ 242

Popular in

July

Cheapest in

November

Average price

C$ 662

Good round-trip deal

C$ 626 or less

Good one-way deal

C$ 308 or less
Air Canada
  • Air Canada
  • 24/10-30/10
  • 3 total stops
  • 33h 28m total
  • Montreal to Costa Rica
Search Deals
WestJet
  • WestJet
  • 16/10
  • 1 total stop
  • 19h 05m total
  • Montreal to Costa Rica
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 65 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 May 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

 
Customize your flight search to find flights from Montreal to Costa Rica that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 28 May 2026.
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 - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Mon 19/10

11:00 p.m.-3:25 p.m.

1 stop18h 25m

San José Juan Santamaria Intl

Sat 24/10

9:25 a.m.-9:35 p.m.

1 stop10h 10m

C$ 541

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Fri 12/6

8:35 a.m.-9:06 a.m.

1 stop26h 31m

San José Juan Santamaria Intl

Fri 19/6

10:05 a.m.-12:40 a.m.

1 stop12h 35m

C$ 557

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Mon 15/6

8:35 a.m.-8:21 a.m.

1 stop25h 46m

San José Juan Santamaria Intl

Mon 6/7

10:03 a.m.-12:40 a.m.

1 stop12h 37m

C$ 577

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Tue 9/6

8:35 a.m.-9:06 a.m.

1 stop26h 31m

San José Juan Santamaria Intl

Fri 12/6

5:47 a.m.-12:40 a.m.

1 stop16h 53m

C$ 592
Quickest round-trip

MontrealLiberia

YUL - LIR

YULLIR

Montreal Pierre Elliott Trudeau Intl

Sat 21/11

6:45 a.m.-4:35 p.m.

1 stop10h 50m

Liberia

Fri 27/11

5:55 p.m.-12:25 a.m.

Nonstop5h 30m

C$ 603

MontrealLiberia

YUL - LIR

YULLIR

Montreal Pierre Elliott Trudeau Intl

Sat 31/10

6:45 a.m.-3:35 p.m.

1 stop10h 50m

Liberia

Sun 8/11

5:45 p.m.-12:15 a.m.

Nonstop5h 30m

C$ 622

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Thu 9/7

8:35 a.m.-8:21 a.m.

1 stop25h 46m

San José Juan Santamaria Intl

Fri 17/7

10:03 a.m.-12:40 a.m.

1 stop12h 37m

C$ 693

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Tue 25/8

11:23 a.m.-11:38 a.m.

1 stop26h 15m

San José Juan Santamaria Intl

Fri 4/9

1:25 p.m.-5:30 p.m.

2 stops26h 05m

C$ 712

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Wed 19/8

11:23 a.m.-8:19 p.m.

1 stop10h 56m

San José Juan Santamaria Intl

Wed 2/9

1:25 p.m.-10:40 a.m.

2 stops19h 15m

C$ 712

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Wed 19/8

6:10 a.m.-7:37 p.m.

2 stops15h 27m

San José Juan Santamaria Intl

Fri 4/9

1:25 p.m.-5:30 p.m.

2 stops26h 05m

C$ 712

Flights are sorted by cheapest round-trip flights first.

Deals found on 24/5

Showing 1-10 of 42 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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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$ 191). Flying from Montreal to Costa Rica in December is currently the most expensive (average of C$ 1,029). 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?

Find hourly flight availability from Montreal to Costa Rica. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 28 May 2026.

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 141 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 Monday 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 19 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

Get insights into the airlines that provide service to Costa Rica. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Costa Rica. Reviews last updated 28 May 2026.
Read through reviews of airlines operating flights from Montreal to Costa Rica, such as Air Transat,Copa Airlines, andWestJet. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air Transat
7.8
Good
553 reviews
Check prices

Entertainment

7.1

Crew

8.5

Overall

7.8

Comfort

7.3

Boarding

7.9

Food

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Air Transat
7.8
Good
553 reviews
Air Transat
7.8
Good
553 reviews
Check prices

Entertainment

7.1

Crew

8.5

Overall

7.8

Comfort

7.3

Boarding

7.9

Food

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Copa Airlines
7.6
Good
1,573 reviews
Air Transat
7.8
Good
553 reviews
Check prices

Entertainment

7.1

Crew

8.5

Overall

7.8

Comfort

7.3

Boarding

7.9

Food

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
WestJet
7.2
Good
3,349 reviews
Air Transat
7.8
Good
553 reviews
Check prices

Entertainment

7.1

Crew

8.5

Overall

7.8

Comfort

7.3

Boarding

7.9

Food

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Air Canada
7.1
Good
11,096 reviews
Air Transat
7.8
Good
553 reviews
Check prices

Entertainment

7.1

Crew

8.5

Overall

7.8

Comfort

7.3

Boarding

7.9

Food

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.
Avianca
6.5
Okay
2,528 reviews
Air Transat
7.8
Good
553 reviews
Check prices

Entertainment

7.1

Crew

8.5

Overall

7.8

Comfort

7.3

Boarding

7.9

Food

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

YOW - GCM

The flight was delayed for 3.5 hours. No compensation for a meal voucher. We were positioned at the back of the plane and the toilets were not working properly. It was a foul smell coming from the toilet.

Related info for your journey

Find useful and relevant information for your journey from Montreal to Costa Rica. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    There are many flights that can get you from Montreal to Costa Rica in 10h 50m. Fly via Avianca, Copa Airlines, or Air Transat to get the fastest option. The distance from Montreal to Costa Rica is about 4033 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$ 181), Avianca (C$ 224), and Porter Airlines (C$ 225).

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

    While on average a flight from Montreal to Costa Rica is generally C$ 590, our data shows the cheapest flight currently is C$ 297. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - San José Juan Santamaria Intl), you can expect to pay C$ 524 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$ 191). Flying from Montreal to Costa Rica in December is currently the most expensive (average of C$ 1,029). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 9 airlines flying from Montreal to Costa Rica

Discover the top 9 airlines that operate flights from Montreal to Costa Rica. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 28 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 263AverageC$ 637FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Copa AirlinesCheapestC$ 301AverageC$ 831FlexibilityNo cancel feeOn-time70%
Search Copa Airlines flights
Air TransatCheapestC$ 316AverageC$ 764FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
American AirlinesCheapestC$ 335AverageC$ 740FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapestC$ 347AverageC$ 588FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
AviancaCheapestC$ 379AverageC$ 618FlexibilityNo cancel feeOn-time71%
Search Avianca flights
WestJetCheapestC$ 400AverageC$ 638FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 411AverageC$ 658FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
DeltaCheapestC$ 519AverageC$ 850FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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.