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Cheap flights from Montreal to Costa Rica from C$ 233

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 16/6. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SJO
9 May — 16 May1
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 9 April 2026.

Fri 22/56:20 p.m.
YUL
-
SJO
Nonstop5h 45m
Air Transat
Fri 29/511:25 p.m.
SJO
-
YUL
Nonstop5h 45m
Air Transat
Deal found 6/4C$ 481
Sat 2/56:35 p.m.
YUL
-
LIR
2 stops19h 35m
United Airlines
Sat 9/53:27 p.m.
LIR
-
YUL
2 stops17h 13m
United Airlines
Deal found 6/4C$ 483
Mon 4/56:35 p.m.
YUL
-
LIR
2 stops19h 35m
United Airlines
Wed 13/51:20 p.m.
LIR
-
YUL
2 stops30h 06m
United Airlines
Deal found 7/4C$ 485
Fri 8/59:45 a.m.
YUL
-
LIR
1 stop28h 08m
United Airlines
Fri 15/53:27 p.m.
LIR
-
YUL
2 stops17h 13m
United Airlines
Deal found 9/4C$ 486
Sat 13/66:45 a.m.
YUL
-
LIR
1 stop9h 35m
Porter Airlines
Wed 24/61:30 p.m.
LIR
-
YUL
1 stop9h 07m
Porter Airlines
Deal found 8/4C$ 489
Mon 1/66:20 p.m.
YUL
-
SJO
Nonstop5h 45m
Air Transat
Fri 12/611:25 p.m.
SJO
-
YUL
Nonstop5h 45m
Air Transat
Deal found 7/4C$ 490
Tue 16/66:45 a.m.
YUL
-
LIR
1 stop7h 40m
WestJet
Wed 1/71:15 p.m.
LIR
-
YUL
1 stop9h 10m
WestJet
Deal found 5/4C$ 492
Sun 31/56:45 a.m.
YUL
-
LIR
1 stop7h 40m
Multiple Airlines
Sun 7/612:40 p.m.
LIR
-
YUL
Nonstop5h 30m
Multiple Airlines
Deal found 8/4C$ 493
Sun 14/67:30 a.m.
YUL
-
LIR
Nonstop6h 00m
Air Transat
Sun 21/612:40 p.m.
LIR
-
YUL
Nonstop5h 30m
Air Transat
Deal found 8/4C$ 499
Fri 15/56:20 p.m.
YUL
-
SJO
Nonstop5h 45m
Air Transat
Fri 29/511:25 p.m.
SJO
-
YUL
Nonstop5h 45m
Air Transat
Deal found 8/4C$ 504
Fri 29/56:20 p.m.
YUL
-
SJO
Nonstop5h 45m
Air Transat
Fri 5/611:25 p.m.
SJO
-
YUL
Nonstop5h 45m
Air Transat
Deal found 5/4C$ 505
Fri 22/56:20 p.m.
YUL
-
SJO
Nonstop5h 45m
Air Transat
Fri 5/611:25 p.m.
SJO
-
YUL
Nonstop5h 45m
Air Transat
Deal found 6/4C$ 507

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 9 April 2026.

Round-trip from

C$ 481

One-way from

C$ 233

Popular in

July

Cheapest in

November

Average price

C$ 612

Good round-trip deal

C$ 589 or less

Good one-way deal

C$ 279 or less
Air Transat
  • Air Transat
  • 22/5-29/5
  • Nonstop
  • 11h 30m total
  • Montreal to Costa Rica
Search Deals
WestJet
  • WestJet
  • 16/6
  • 1 total stop
  • 7h 40m total
  • Montreal to Costa Rica
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 82 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 9 April 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

MontrealLiberia

YUL - LIR

YULLIR

Montreal Pierre Elliott Trudeau Intl

Sun 26/4

6:10 a.m.-12:10 p.m.

2 stops32h 00m

Liberia

Thu 7/5

3:27 p.m.-7:45 p.m.

2 stops26h 18m

C$ 485

MontrealLiberia

YUL - LIR

YULLIR

Montreal Pierre Elliott Trudeau Intl

Fri 8/5

9:45 a.m.-11:53 a.m.

1 stop28h 08m

Liberia

Fri 15/5

3:27 p.m.-5:30 p.m.

2 stops24h 03m

C$ 485

MontrealLiberia

YUL - LIR

YULLIR

Montreal Pierre Elliott Trudeau Intl

Thu 7/5

4:30 p.m.-12:10 p.m.

1 stop21h 40m

Liberia

Tue 26/5

3:27 p.m.-10:40 a.m.

2 stops17h 13m

C$ 583

MontrealLiberia

YUL - LIR

YULLIR

Montreal Pierre Elliott Trudeau Intl

Wed 6/5

4:30 p.m.-2:25 p.m.

1 stop23h 55m

Liberia

Thu 14/5

3:27 p.m.-9:26 p.m.

2 stops27h 59m

C$ 583

MontrealLiberia

YUL - LIR

YULLIR

Montreal Pierre Elliott Trudeau Intl

Wed 27/5

9:45 a.m.-9:50 a.m.

2 stops26h 05m

Liberia

Thu 4/6

3:27 p.m.-9:26 p.m.

2 stops27h 59m

C$ 623

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Mon 1/6

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

1 stop25h 46m

San José Juan Santamaria Intl

Thu 11/6

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

1 stop12h 35m

C$ 629

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Fri 5/6

8:35 a.m.-7:01 p.m.

1 stop12h 26m

San José Juan Santamaria Intl

Fri 12/6

4:10 a.m.-12:40 a.m.

1 stop18h 30m

C$ 702

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Wed 24/6

9:45 a.m.-10:11 a.m.

2 stops26h 26m

San José Juan Santamaria Intl

Wed 1/7

7:55 a.m.-10:40 a.m.

2 stops24h 45m

C$ 709
Quickest round-trip

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Fri 22/5

11:00 p.m.-8:50 a.m.

1 stop11h 50m

San José Juan Santamaria Intl

Fri 29/5

5:05 a.m.-9:40 p.m.

3 stops14h 35m

C$ 720

MontrealLiberia

YUL - LIR

YULLIR

Montreal Pierre Elliott Trudeau Intl

Sun 24/5

9:45 a.m.-9:50 a.m.

2 stops26h 05m

Liberia

Sun 31/5

3:27 p.m.-10:40 a.m.

2 stops17h 13m

C$ 728

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/4

Showing 1-10 of 44 resultsSorted by cheapest first
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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$ 204). Flying from Montreal to Costa Rica in July is currently the most expensive (average of C$ 425). 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 9 April 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 19% of weekly flights between Montreal and Costa Rica have experienced delays in the past year, with the average delay time being 140 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?

Wednesday 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 13% of flights being 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 9 April 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
7.7
Good
534 reviews
Check prices

Comfort

7.3

Crew

8.4

Overall

7.7

Food

6.8

Entertainment

7.0

Boarding

7.9

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
7.7
Good
534 reviews
Air Transat
7.7
Good
534 reviews
Check prices

Comfort

7.3

Crew

8.4

Overall

7.7

Food

6.8

Entertainment

7.0

Boarding

7.9

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
7.5
Good
1,575 reviews
Air Transat
7.7
Good
534 reviews
Check prices

Comfort

7.3

Crew

8.4

Overall

7.7

Food

6.8

Entertainment

7.0

Boarding

7.9

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
3,318 reviews
Air Transat
7.7
Good
534 reviews
Check prices

Comfort

7.3

Crew

8.4

Overall

7.7

Food

6.8

Entertainment

7.0

Boarding

7.9

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
10,913 reviews
Air Transat
7.7
Good
534 reviews
Check prices

Comfort

7.3

Crew

8.4

Overall

7.7

Food

6.8

Entertainment

7.0

Boarding

7.9

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
2,503 reviews
Air Transat
7.7
Good
534 reviews
Check prices

Comfort

7.3

Crew

8.4

Overall

7.7

Food

6.8

Entertainment

7.0

Boarding

7.9

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 11h 50m. Fly via United Airlines, Copa Airlines, or Avianca 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$ 201), Avianca (C$ 224), and Air Transat (C$ 227).

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

    While on average a flight from Montreal to Costa Rica is generally C$ 494, our data shows the cheapest flight currently is C$ 267. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - San José Juan Santamaria Intl), you can expect to pay C$ 490 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$ 204). Flying from Montreal to Costa Rica in July is currently the most expensive (average of C$ 425). 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 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 9 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 263AverageC$ 638FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air TransatCheapestC$ 307AverageC$ 767FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
American AirlinesCheapestC$ 316AverageC$ 712FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Copa AirlinesCheapestC$ 338AverageC$ 834FlexibilityNo cancel feeOn-time70%
Search Copa Airlines flights
DeltaCheapestC$ 344AverageC$ 818FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
AviancaCheapestC$ 346AverageC$ 599FlexibilityNo cancel feeOn-time71%
Search Avianca flights
United AirlinesCheapestC$ 348AverageC$ 613FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 399AverageC$ 664FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 409AverageC$ 631FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
WestJet EncoreCheapestC$ 906AverageC$ 1,070FlexibilityNo 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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