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Cheap flights from Montreal to Costa Rica from C$ 231

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 29/10. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SJO
18 Aug — 25 Aug1
1 adult

Cheap 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 13 August 2025.

Round-trip from

C$ 528

One-way from

C$ 231

Popular in

December

Cheapest in

November

Average price

C$ 772

Good round-trip deal

C$ 514 or less

Good one-way deal

C$ 282 or less
Air Canada
  • Air Canada
  • 7/1-21/1
  • 4 total stops
  • 27h 29m total
  • Montreal to Costa Rica
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United Airlines
  • United Airlines
  • 3/9
  • 2 total stops
  • 21h 15m total
  • Montreal to Costa Rica
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 123 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease (C$ 59 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Montreal (YMQ) to Costa Rica.
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Price to beat on a one-way flight from Montreal (YMQ) to Costa Rica.
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Find flight deals from Montreal to Costa Rica

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 13 August 2025.

Mon 24/117:00 p.m.YUL - SJO
1 stop28h 55mAir Canada
Tue 2/128:35 a.m.SJO - YUL
2 stops21h 04mAir Canada
Deal found 12/8C$ 528
Mon 24/119:30 p.m.YUL - SJO
2 stops26h 25mAir Canada
Wed 3/128:35 a.m.SJO - YUL
1 stop13h 47mAir Canada
Deal found 11/8C$ 529
Wed 26/116:00 a.m.YUL - SJO
2 stops18h 40mAir Canada
Tue 9/128:35 a.m.SJO - YUL
2 stops26h 05mAir Canada
Deal found 11/8C$ 530
Wed 26/1110:10 a.m.YUL - SJO
2 stops14h 30mAir Canada
Thu 11/125:05 a.m.SJO - YUL
2 stops17h 17mAir Canada
Deal found 11/8C$ 532
Wed 26/1110:00 p.m.YUL - SJO
1 stop11h 50mMultiple Airlines
Wed 10/121:15 a.m.SJO - YUL
Nonstop5h 40mMultiple Airlines
Deal found 11/8C$ 533
Wed 29/107:20 p.m.YUL - SJO
1 stop30h 15mAir Transat
Fri 7/111:15 a.m.SJO - YUL
Nonstop5h 40mAir Transat
Deal found 12/8C$ 535
Wed 17/93:44 p.m.YUL - SJO
1 stop28h 30mAmerican Airlines
Sat 27/91:45 p.m.SJO - YUL
1 stop30h 57mAmerican Airlines
Deal found 12/8C$ 536
Fri 14/1110:00 p.m.YUL - SJO
1 stop22h 15mAvianca
Mon 24/117:55 a.m.SJO - YUL
1 stop11h 40mAvianca
Deal found 11/8C$ 537
Wed 27/83:44 p.m.YUL - SJO
1 stop28h 31mAmerican Airlines
Sat 13/91:45 p.m.SJO - YUL
1 stop30h 57mAmerican Airlines
Deal found 11/8C$ 539
Wed 5/117:20 p.m.YUL - SJO
1 stop29h 15mAir Transat
Fri 14/111:15 a.m.SJO - YUL
Nonstop5h 40mAir Transat
Deal found 12/8C$ 540
Sun 2/112:29 p.m.YUL - LIR
2 stops24h 44mAmerican Airlines
Wed 12/113:08 p.m.LIR - YUL
1 stop22h 42mAmerican Airlines
Deal found 11/8C$ 541
Sat 30/83:44 p.m.YUL - SJO
1 stop28h 31mAmerican Airlines
Tue 16/96:00 a.m.SJO - YUL
2 stops14h 32mAmerican Airlines
Deal found 11/8C$ 543

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 13 August 2025.
Use the filters below to find and compare flights from Montreal to Costa Rica that are best for you.

Fly from

Montreal

Fly to

Costa Rica

Route

Depart

Return

Price

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Fri 28/11

6:55 p.m.-11:55 p.m.

Nonstop6h 00m

San José Juan Santamaria Intl

Wed 10/12

1:15 a.m.-7:55 a.m.

Nonstop5h 40m

C$ 532

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Wed 26/11

6:55 p.m.-11:55 p.m.

Nonstop6h 00m

San José Juan Santamaria Intl

Thu 4/12

12:55 a.m.-6:25 p.m.

1 stop16h 30m

C$ 541

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Wed 3/12

6:55 p.m.-11:55 p.m.

Nonstop6h 00m

San José Juan Santamaria Intl

Thu 11/12

12:55 a.m.-10:10 p.m.

1 stop20h 15m

C$ 541

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Wed 28/1

6:55 p.m.-11:55 p.m.

Nonstop6h 00m

San José Juan Santamaria Intl

Mon 16/2

1:15 a.m.-7:55 a.m.

Nonstop5h 40m

C$ 547

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Wed 28/1

6:55 p.m.-11:55 p.m.

Nonstop6h 00m

San José Juan Santamaria Intl

Wed 18/2

1:15 a.m.-7:55 a.m.

Nonstop5h 40m

C$ 547

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Wed 4/2

6:55 p.m.-11:55 p.m.

Nonstop6h 00m

San José Juan Santamaria Intl

Sun 15/2

1:15 a.m.-7:55 a.m.

Nonstop5h 40m

C$ 547

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Wed 4/2

6:55 p.m.-11:55 p.m.

Nonstop6h 00m

San José Juan Santamaria Intl

Mon 16/2

1:15 a.m.-7:55 a.m.

Nonstop5h 40m

C$ 547

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Wed 4/2

6:55 p.m.-11:55 p.m.

Nonstop6h 00m

San José Juan Santamaria Intl

Wed 11/2

1:15 a.m.-7:55 a.m.

Nonstop5h 40m

C$ 547

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Wed 28/1

6:55 p.m.-11:55 p.m.

Nonstop6h 00m

San José Juan Santamaria Intl

Sun 15/2

1:15 a.m.-7:55 a.m.

Nonstop5h 40m

C$ 547

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Mon 19/1

6:55 p.m.-11:55 p.m.

Nonstop6h 00m

San José Juan Santamaria Intl

Mon 2/2

1:15 a.m.-7:55 a.m.

Nonstop5h 40m

C$ 548

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/8

Showing 1-10 of 37 results
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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, September is the cheapest month in which you can book a flight from Montreal to Costa Rica (average of C$ 486). Flying from Montreal to Costa Rica in December is currently the most expensive (average of C$ 683). 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 13 August 2025.

It’s typically best to fly out from Montreal to Costa Rica in the afternoon. Doing so could potentially save you 17% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Montreal to Costa Rica?

Use this chart to determine the cheapest time to fly round-trip from Montreal to Costa Rica. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their Montreal to Costa Rica flight should consider departing on Tuesday evenings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 13 August 2025.
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
7.7
Good
425 reviews
Check prices

Boarding

7.9

Overall

7.7

Entertainment

7.1

Food

6.7

Comfort

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.
Air Transat
7.7
Good
425 reviews
Air Transat
7.7
Good
425 reviews
Check prices

Boarding

7.9

Overall

7.7

Entertainment

7.1

Food

6.7

Comfort

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.
Copa Airlines
7.5
Good
1,507 reviews
Air Transat
7.7
Good
425 reviews
Check prices

Boarding

7.9

Overall

7.7

Entertainment

7.1

Food

6.7

Comfort

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.
WestJet
7.2
Good
3,013 reviews
Air Transat
7.7
Good
425 reviews
Check prices

Boarding

7.9

Overall

7.7

Entertainment

7.1

Food

6.7

Comfort

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.
Air Canada
7.1
Good
9,943 reviews
Air Transat
7.7
Good
425 reviews
Check prices

Boarding

7.9

Overall

7.7

Entertainment

7.1

Food

6.7

Comfort

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.
Avianca
6.7
Okay
2,397 reviews
Air Transat
7.7
Good
425 reviews
Check prices

Boarding

7.9

Overall

7.7

Entertainment

7.1

Food

6.7

Comfort

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Liam,Jun 2025

GLA - YYZ

To and from Glasgow with Air Transat. Excellent flights, food, service. Nothing but praise.

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.

  • 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 United Airlines (C$ 231), WestJet (C$ 237), and Air Canada (C$ 242).

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

    While on average a flight from Montreal to Costa Rica is generally C$ 469, our data shows the cheapest flight currently is C$ 260. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - Liberia), you can expect to pay C$ 404 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, September is the cheapest month in which you can book a flight from Montreal to Costa Rica (average of C$ 486). Flying from Montreal to Costa Rica in December is currently the most expensive (average of C$ 683). 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

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Alternative routes for Montreal to Costa Rica

See prices for flight routes from nearby airports that may be better suited for you.
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Québec City to Liberia flights
Québec City to Guatemala City flights
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Ottawa to Panama City flights
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Pierre Elliott Trudeau Intl to Flores flights
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Québec City to Panama City flights
Pierre Elliott Trudeau Intl to San Pedro Town flights
Québec City to Tegucigalpa flights
Québec City to Coxen Hole flights
Pierre Elliott Trudeau Intl to Panama City flights
Pierre Elliott Trudeau Intl to Placencia flights
Ottawa to Tegucigalpa flights
Pierre Elliott Trudeau Intl to Tegucigalpa flights

Top 10 airlines flying from Montreal to Costa Rica

Discover the top 10 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 13 August 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 342AverageC$ 755FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 370AverageC$ 867FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Porter AirlinesCheapestC$ 401AverageC$ 616FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
AviancaCheapestC$ 405AverageC$ 586FlexibilityNo cancel feeOn-time71%
Search Avianca flights
Air CanadaCheapestC$ 414AverageC$ 824FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 427AverageC$ 696FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Copa AirlinesCheapestC$ 472AverageC$ 855FlexibilityNo cancel feeOn-time70%
Search Copa Airlines flights
Air TransatCheapestC$ 497AverageC$ 877FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
United AirlinesCheapestC$ 603AverageC$ 719FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJet EncoreCheapestC$ 891AverageC$ 1,120FlexibilityNo cancel feeOn-timeN/A
Search WestJet Encore 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!

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