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Cheap flights from Montreal to Costa Rica from C$ 223

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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SJO
21 May — 28 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 21 April 2026.

Fri 22/56:45 a.m.
YUL
-
LIR
1 stop7h 40m
WestJet
Wed 10/61:15 p.m.
LIR
-
YUL
1 stop25h 30m
WestJet
Deal found 21/4C$ 472
Thu 3/95:45 p.m.
YUL
-
LIR
1 stop20h 40m
WestJet
Sat 19/91:15 p.m.
LIR
-
YUL
1 stop9h 10m
WestJet
Deal found 20/4C$ 473
Tue 22/94:15 p.m.
YUL
-
LIR
1 stop22h 15m
Porter Airlines
Wed 7/101:30 p.m.
LIR
-
YUL
1 stop9h 07m
Porter Airlines
Deal found 19/4C$ 481
Mon 27/46:35 p.m.
YUL
-
LIR
2 stops19h 35m
United Airlines
Thu 7/53:27 p.m.
LIR
-
YUL
2 stops27h 59m
United Airlines
Deal found 16/4C$ 483
Fri 8/56:10 a.m.
YUL
-
LIR
1 stop31h 43m
United Airlines
Sat 16/53:27 p.m.
LIR
-
YUL
2 stops24h 03m
United Airlines
Deal found 20/4C$ 484
Sat 12/96:45 a.m.
YUL
-
LIR
1 stop7h 40m
WestJet
Wed 23/91:15 p.m.
LIR
-
YUL
1 stop9h 10m
WestJet
Deal found 19/4C$ 487
Sun 20/96:45 a.m.
YUL
-
LIR
1 stop7h 40m
WestJet
Wed 30/91:15 p.m.
LIR
-
YUL
1 stop9h 10m
WestJet
Deal found 20/4C$ 488
Sat 5/96:45 a.m.
YUL
-
LIR
1 stop7h 40m
WestJet
Sun 20/91:15 p.m.
LIR
-
YUL
1 stop9h 10m
WestJet
Deal found 20/4C$ 490
Fri 4/96:45 a.m.
YUL
-
LIR
1 stop7h 40m
WestJet
Sat 19/91:15 p.m.
LIR
-
YUL
1 stop9h 10m
WestJet
Deal found 21/4C$ 491
Sun 6/96:45 a.m.
YUL
-
LIR
1 stop7h 40m
WestJet
Wed 16/91:15 p.m.
LIR
-
YUL
1 stop9h 10m
WestJet
Deal found 21/4C$ 492
Sat 26/96:45 a.m.
YUL
-
LIR
1 stop7h 40m
WestJet
Sun 4/101:15 p.m.
LIR
-
YUL
1 stop9h 10m
WestJet
Deal found 19/4C$ 494
Sun 11/106:45 a.m.
YUL
-
LIR
1 stop7h 40m
WestJet
Sun 18/101:15 p.m.
LIR
-
YUL
1 stop9h 10m
WestJet
Deal found 21/4C$ 495

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 21 April 2026.

Round-trip from

C$ 473

One-way from

C$ 223

Popular in

July

Cheapest in

November

Average price

C$ 606

Good round-trip deal

C$ 559 or less

Good one-way deal

C$ 283 or less
WestJet
  • WestJet
  • 3/9-19/9
  • 2 total stops
  • 29h 50m total
  • Montreal to Costa Rica
Search Deals
WestJet
  • WestJet
  • 5/6
  • 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$ 74 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 25 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 21 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

Fri 8/5

6:35 p.m.-12:10 p.m.

2 stops19h 35m

Liberia

Fri 15/5

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

2 stops17h 13m

C$ 484

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Fri 8/5

2:20 p.m.-11:55 a.m.

2 stops23h 35m

San José Juan Santamaria Intl

Fri 15/5

7:55 a.m.-9:26 p.m.

2 stops35h 31m

C$ 509

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Thu 14/5

2:20 p.m.-11:38 a.m.

2 stops23h 18m

San José Juan Santamaria Intl

Fri 29/5

12:30 a.m.-9:26 p.m.

2 stops18h 56m

C$ 510

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Fri 1/5

6:35 p.m.-12:21 p.m.

2 stops19h 46m

San José Juan Santamaria Intl

Fri 8/5

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

2 stops24h 45m

C$ 518

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Fri 15/5

2:20 p.m.-11:55 a.m.

2 stops23h 35m

San José Juan Santamaria Intl

Sat 23/5

12:30 a.m.-9:26 p.m.

2 stops18h 56m

C$ 521

MontrealLiberia

YUL - LIR

YULLIR

Montreal Pierre Elliott Trudeau Intl

Sat 2/5

6:35 p.m.-12:10 p.m.

2 stops19h 35m

Liberia

Sat 9/5

1:20 p.m.-10:40 a.m.

2 stops19h 20m

C$ 522

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Wed 20/5

8:35 a.m.-9:47 p.m.

1 stop15h 12m

San José Juan Santamaria Intl

Sat 6/6

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

1 stop12h 35m

C$ 542
Quickest round-trip

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Sat 13/6

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

1 stop12h 26m

San José Juan Santamaria Intl

Fri 19/6

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

1 stop12h 35m

C$ 558

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Mon 4/5

4:30 p.m.-12:21 p.m.

1 stop21h 51m

San José Juan Santamaria Intl

Fri 29/5

12:30 a.m.-6:12 p.m.

2 stops15h 42m

C$ 611

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Wed 24/6

9:15 a.m.-10:11 a.m.

2 stops26h 56m

San José Juan Santamaria Intl

Thu 16/7

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

2 stops19h 15m

C$ 615

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/4

Showing 1-10 of 40 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$ 189). Flying from Montreal to Costa Rica in August is currently the most expensive (average of C$ 1,034). 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 21 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 21 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
537 reviews
Check prices

Boarding

7.9

Entertainment

7.1

Crew

8.4

Food

6.8

Comfort

7.3

Overall

7.7

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
537 reviews
Air Transat
7.7
Good
537 reviews
Check prices

Boarding

7.9

Entertainment

7.1

Crew

8.4

Food

6.8

Comfort

7.3

Overall

7.7

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
1,580 reviews
Air Transat
7.7
Good
537 reviews
Check prices

Boarding

7.9

Entertainment

7.1

Crew

8.4

Food

6.8

Comfort

7.3

Overall

7.7

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
3,323 reviews
Air Transat
7.7
Good
537 reviews
Check prices

Boarding

7.9

Entertainment

7.1

Crew

8.4

Food

6.8

Comfort

7.3

Overall

7.7

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
10,950 reviews
Air Transat
7.7
Good
537 reviews
Check prices

Boarding

7.9

Entertainment

7.1

Crew

8.4

Food

6.8

Comfort

7.3

Overall

7.7

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
2,514 reviews
Air Transat
7.7
Good
537 reviews
Check prices

Boarding

7.9

Entertainment

7.1

Crew

8.4

Food

6.8

Comfort

7.3

Overall

7.7

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 7h 40m. Fly via WestJet, Porter Airlines, or United Airlines 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$ 199), Avianca (C$ 222), and Air Transat (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$ 499, our data shows the cheapest flight currently is C$ 269. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - Liberia), you can expect to pay C$ 458 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$ 189). Flying from Montreal to Costa Rica in August is currently the most expensive (average of C$ 1,034). 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 21 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 259AverageC$ 630FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air TransatCheapestC$ 311AverageC$ 756FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
American AirlinesCheapestC$ 331AverageC$ 724FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Copa AirlinesCheapestC$ 333AverageC$ 827FlexibilityNo cancel feeOn-time70%
Search Copa Airlines flights
DeltaCheapestC$ 339AverageC$ 827FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
AviancaCheapestC$ 343AverageC$ 594FlexibilityNo cancel feeOn-time71%
Search Avianca flights
United AirlinesCheapestC$ 343AverageC$ 597FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 395AverageC$ 637FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 404AverageC$ 627FlexibilityNo cancel feeOn-time52%
Search Porter Airlines 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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