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Cheap flights from Montreal to Costa Rica from C$ 238

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 31/1. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SJO
18 Dec — 25 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 18 November 2025.

Fri 28/116:55 p.m.YUL - SJO
Nonstop6h 00mAir Transat
Wed 3/121:15 a.m.SJO - YUL
Nonstop5h 40mAir Transat
Deal found 17/11C$ 366
Fri 21/116:55 p.m.YUL - SJO
Nonstop6h 00mAir Transat
Wed 26/111:15 a.m.SJO - YUL
Nonstop5h 40mAir Transat
Deal found 17/11C$ 369
Wed 3/126:55 p.m.YUL - SJO
Nonstop6h 00mAir Transat
Wed 10/121:15 a.m.SJO - YUL
Nonstop5h 40mAir Transat
Deal found 17/11C$ 370
Sat 22/111:40 p.m.YUL - SJO
1 stop10h 55mAir Transat
Sat 29/1112:55 a.m.SJO - YUL
1 stop17h 30mAir Transat
Deal found 17/11C$ 376
Sat 22/111:40 p.m.YUL - SJO
1 stop10h 55mAir Transat
Wed 3/121:15 a.m.SJO - YUL
Nonstop5h 40mAir Transat
Deal found 16/11C$ 379
Sat 6/121:40 p.m.YUL - SJO
1 stop10h 55mAir Transat
Sat 13/1212:55 a.m.SJO - YUL
1 stop17h 30mAir Transat
Deal found 17/11C$ 387
Wed 19/116:55 p.m.YUL - SJO
Nonstop6h 00mAir Transat
Wed 3/121:15 a.m.SJO - YUL
Nonstop5h 40mAir Transat
Deal found 16/11C$ 388
Sat 22/113:55 p.m.YUL - SJO
1 stop8h 40mAir Transat
Wed 17/121:15 a.m.SJO - YUL
Nonstop5h 40mAir Transat
Deal found 17/11C$ 398
Wed 3/126:55 p.m.YUL - SJO
Nonstop6h 00mAir Transat
Sat 13/1212:55 a.m.SJO - YUL
1 stop17h 30mAir Transat
Deal found 15/11C$ 400
Fri 21/116:55 p.m.YUL - SJO
Nonstop6h 00mAir Transat
Tue 16/1212:55 a.m.SJO - YUL
1 stop16h 30mAir Transat
Deal found 16/11C$ 405
Sat 22/113:55 p.m.YUL - SJO
1 stop8h 40mAir Transat
Tue 16/1212:55 a.m.SJO - YUL
1 stop22h 40mAir Transat
Deal found 17/11C$ 407
Tue 9/124:45 p.m.YUL - LIR
2 stops21h 25mUnited Airlines
Tue 13/12:20 p.m.LIR - YUL
2 stops29h 57mUnited Airlines
Deal found 16/11C$ 426

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 18 November 2025.

Round-trip from

C$ 366

One-way from

C$ 238

Popular in

December

Cheapest in

November

Average price

C$ 540

Good round-trip deal

C$ 451 or less

Good one-way deal

C$ 251 or less
Air Transat
  • Air Transat
  • 28/11-3/12
  • Nonstop
  • 11h 40m total
  • Montreal to Costa Rica
Search Deals
United Airlines
  • United Airlines
  • 31/1
  • 1 total stop
  • 21h 10m total
  • Montreal to Costa Rica
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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 18 November 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

Sat 22/11

3:55 p.m.-11:35 p.m.

1 stop8h 40m

San José Juan Santamaria Intl

Thu 18/12

12:55 a.m.-10:25 p.m.

1 stop20h 30m

C$ 407

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Fri 28/11

4:45 p.m.-12:56 p.m.

1 stop21h 11m

San José Juan Santamaria Intl

Sat 13/12

2:05 p.m.-2:00 p.m.

1 stop22h 55m

C$ 411

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Sun 23/11

2:13 p.m.-1:15 p.m.

2 stops24h 02m

San José Juan Santamaria Intl

Sat 6/12

2:30 p.m.-3:16 p.m.

1 stop23h 46m

C$ 411

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Fri 21/11

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

2 stops21h 25m

San José Juan Santamaria Intl

Sat 13/12

2:05 p.m.-2:00 p.m.

1 stop22h 55m

C$ 411

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Mon 24/11

9:15 a.m.-11:25 a.m.

2 stops27h 10m

San José Juan Santamaria Intl

Tue 16/12

2:20 p.m.-3:16 p.m.

2 stops23h 56m

C$ 411

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Wed 26/11

2:13 p.m.-1:15 p.m.

2 stops24h 02m

San José Juan Santamaria Intl

Tue 16/12

2:20 p.m.-3:16 p.m.

2 stops23h 56m

C$ 411

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Fri 28/11

4:45 p.m.-12:56 p.m.

1 stop21h 11m

San José Juan Santamaria Intl

Sat 6/12

2:30 p.m.-3:16 p.m.

1 stop23h 46m

C$ 411

MontrealLiberia

YUL - LIR

YULLIR

Montreal Pierre Elliott Trudeau Intl

Sat 10/1

3:00 p.m.-1:10 p.m.

2 stops23h 10m

Liberia

Wed 14/1

2:20 p.m.-2:00 p.m.

2 stops22h 40m

C$ 426

MontrealLiberia

YUL - LIR

YULLIR

Montreal Pierre Elliott Trudeau Intl

Wed 14/1

3:00 p.m.-12:55 p.m.

2 stops22h 55m

Liberia

Wed 21/1

2:20 p.m.-2:00 p.m.

2 stops22h 40m

C$ 426

MontrealLiberia

YUL - LIR

YULLIR

Montreal Pierre Elliott Trudeau Intl

Tue 17/3

4:45 p.m.-12:10 p.m.

2 stops21h 25m

Liberia

Wed 8/4

1:20 p.m.-10:37 a.m.

2 stops19h 17m

C$ 426

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/11

Showing 1-10 of 35 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, October is the cheapest month in which you can book a flight from Montreal to Costa Rica (average of C$ 202). Flying from Montreal to Costa Rica in July is currently the most expensive (average of C$ 467). 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 18 November 2025.

It’s typically best to fly out from Montreal to Costa Rica in the evening. Doing so could potentially save you 37% on the flight price compared to flying in the morning, 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 Friday at noon when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How often are flights $[0, preposition:'from ']$[0, article:'from ']$[0, place:'from'] $[1, preposition:'to ']$[1, article:'to ']$[1, place:'to'] delayed?

About 18% of weekly flights between $[0, place:'genitive'] and $[1, place:'genitive'] have experienced delays in the past year, with the average delay time being 153 minutes.

What is the most punctual flight time for $[0,article:'genitive ']$[0,place:'genitive'] $[1, preposition:'to ']$[1, article:'to ']$[1, place:'to'] flights?

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

Which airline has the best punctuality record on $[0,article:'genitive ']$[0,place:'genitive'] $[1, preposition:'to ']$[1, article:'to ']$[1, place:'to'] flights?

Over the past year, Keewatin Air has had the lowest number of delays on this route, with no flights being classified as delayed.

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 18 November 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
7.8
Good
474 reviews
Check prices

Comfort

7.4

Crew

8.5

Food

6.8

Boarding

7.9

Entertainment

7.1

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Air Transat
7.8
Good
474 reviews
Air Transat
7.8
Good
474 reviews
Check prices

Comfort

7.4

Crew

8.5

Food

6.8

Boarding

7.9

Entertainment

7.1

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Copa Airlines
7.6
Good
1,566 reviews
Air Transat
7.8
Good
474 reviews
Check prices

Comfort

7.4

Crew

8.5

Food

6.8

Boarding

7.9

Entertainment

7.1

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
WestJet
7.2
Good
3,163 reviews
Air Transat
7.8
Good
474 reviews
Check prices

Comfort

7.4

Crew

8.5

Food

6.8

Boarding

7.9

Entertainment

7.1

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Air Canada
7.1
Good
10,459 reviews
Air Transat
7.8
Good
474 reviews
Check prices

Comfort

7.4

Crew

8.5

Food

6.8

Boarding

7.9

Entertainment

7.1

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.
Avianca
6.6
Okay
2,475 reviews
Air Transat
7.8
Good
474 reviews
Check prices

Comfort

7.4

Crew

8.5

Food

6.8

Boarding

7.9

Entertainment

7.1

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

YYZ - YUL

Easy, fast onboarding, very friendly staff. Seats were very narrow, OK for me but we were elbow to elbow with both neighbours of small size. The seat width should be indicated at the time of booking to prevent an uncomfortable situation with oversized travellers.

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 8h 40m. Fly via Air Transat or United Airlines 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 flights from Montreal to Costa Rica?

    While on average a flight from Montreal to Costa Rica is generally C$ 610, our data shows the cheapest flight currently is C$ 206. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - Liberia), you can expect to pay C$ 383 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$ 202). Flying from Montreal to Costa Rica in July is currently the most expensive (average of C$ 467). 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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Pierre Elliott Trudeau Intl to David flights
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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 18 November 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 351AverageC$ 844FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 373AverageC$ 849FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapestC$ 375AverageC$ 786FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air TransatCheapestC$ 376AverageC$ 851FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
AviancaCheapestC$ 400AverageC$ 604FlexibilityNo cancel feeOn-time71%
Search Avianca flights
United AirlinesCheapestC$ 410AverageC$ 690FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Copa AirlinesCheapestC$ 436AverageC$ 860FlexibilityNo cancel feeOn-time70%
Search Copa Airlines flights
WestJetCheapestC$ 483AverageC$ 709FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 484AverageC$ 632FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
WestJet EncoreCheapestC$ 905AverageC$ 1,031FlexibilityNo cancel feeOn-timeN/A
Search WestJet Encore flights

Fly with Cheapflights

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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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