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Cheap flights from Montreal to Costa Rica from C$ 248

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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SJO
27 Aug — 3 Sep1
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 July 2026.

Tue 10/1110:20 p.m.
YUL
-
SJO
1 stop18h 00m
Avianca
Thu 19/111:45 a.m.
SJO
-
YUL
1 stop17h 50m
Avianca
Deal found 24/7C$ 539
Mon 16/1110:00 p.m.
YUL
-
SJO
1 stop11h 50m
Avianca
Sat 21/111:45 a.m.
SJO
-
YUL
1 stop17h 50m
Avianca
Deal found 26/7C$ 540
Wed 25/1110:00 p.m.
YUL
-
SJO
1 stop11h 50m
Avianca
Fri 4/125:00 a.m.
SJO
-
YUL
1 stop7h 40m
Avianca
Deal found 26/7C$ 542
Mon 7/98:35 a.m.
YUL
-
SJO
1 stop24h 35m
Copa Airlines
Mon 14/910:03 a.m.
SJO
-
YUL
1 stop12h 37m
Copa Airlines
Deal found 24/7C$ 543
Mon 21/98:35 a.m.
YUL
-
SJO
1 stop25h 44m
Copa Airlines
Mon 5/1010:03 a.m.
SJO
-
YUL
1 stop12h 37m
Copa Airlines
Deal found 27/7C$ 544
Tue 17/1110:20 p.m.
YUL
-
SJO
1 stop11h 30m
Avianca
Tue 8/127:50 p.m.
SJO
-
YUL
1 stop16h 50m
Avianca
Deal found 26/7C$ 556
Sat 28/1110:20 p.m.
YUL
-
SJO
1 stop18h 00m
Avianca
Sat 5/127:50 p.m.
SJO
-
YUL
1 stop16h 50m
Avianca
Deal found 27/7C$ 557
Sat 12/98:35 a.m.
YUL
-
SJO
1 stop24h 35m
Copa Airlines
Thu 24/95:45 a.m.
SJO
-
YUL
1 stop16h 55m
Copa Airlines
Deal found 27/7C$ 558
Tue 24/115:55 p.m.
YUL
-
LIR
2 stops21h 13m
Multiple Airlines
Wed 2/123:20 p.m.
LIR
-
YUL
1 stop8h 13m
Multiple Airlines
Deal found 23/7C$ 561
Fri 20/116:45 a.m.
YUL
-
LIR
1 stop8h 44m
WestJet
Mon 23/113:20 p.m.
LIR
-
YUL
1 stop8h 13m
WestJet
Deal found 27/7C$ 563
Fri 4/96:20 p.m.
YUL
-
SJO
Nonstop5h 45m
Air Transat
Fri 11/911:25 p.m.
SJO
-
YUL
Nonstop5h 45m
Air Transat
Deal found 23/7C$ 564
Tue 25/86:45 a.m.
YUL
-
LIR
1 stop7h 40m
WestJet
Wed 30/91:15 p.m.
LIR
-
YUL
1 stop9h 10m
WestJet
Deal found 26/7C$ 564

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 July 2026.

Round-trip from

C$ 539

One-way from

C$ 248

Popular in

February

Cheapest in

September

Average price

C$ 817

Good round-trip deal

C$ 618 or less

Good one-way deal

C$ 282 or less
Avianca
  • Avianca
  • 10/11-19/11
  • 2 total stops
  • 35h 50m total
  • Montreal to Costa Rica
Search Deals
WestJet
  • WestJet
  • 3/11
  • 1 total stop
  • 8h 44m total
  • Montreal to Costa Rica
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 112 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 July 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 July 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

Sat 12/9

8:35 a.m.-7:10 a.m.

1 stop24h 35m

San José Juan Santamaria Intl

Thu 24/9

5:45 a.m.-12:40 a.m.

1 stop16h 55m

C$ 558

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Tue 25/8

8:35 a.m.-9:04 a.m.

1 stop26h 29m

San José Juan Santamaria Intl

Thu 3/9

4:08 a.m.-12:40 a.m.

1 stop18h 32m

C$ 623

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Fri 22/1

3:05 p.m.-11:45 a.m.

2 stops21h 40m

San José Juan Santamaria Intl

Sun 31/1

5:00 a.m.-1:40 p.m.

1 stop7h 40m

C$ 628

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Sun 8/11

6:10 a.m.-11:25 a.m.

2 stops30h 15m

San José Juan Santamaria Intl

Wed 18/11

11:28 p.m.-1:28 p.m.

1 stop13h 00m

C$ 716

MontrealLiberia

YUL - LIR

YULLIR

Montreal Pierre Elliott Trudeau Intl

Fri 20/11

2:15 p.m.-4:35 p.m.

1 stop27h 20m

Liberia

Sat 28/11

5:55 p.m.-7:15 p.m.

1 stop24h 20m

C$ 718

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Tue 12/1

4:45 p.m.-12:35 p.m.

1 stop20h 50m

San José Juan Santamaria Intl

Tue 26/1

8:45 a.m.-9:40 p.m.

2 stops11h 55m

C$ 726
Quickest round-trip

MontrealLiberia

YUL - LIR

YULLIR

Montreal Pierre Elliott Trudeau Intl

Mon 11/1

6:45 a.m.-3:25 p.m.

1 stop9h 40m

Liberia

Sun 24/1

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

Nonstop5h 30m

C$ 738

MontrealLiberia

YUL - LIR

YULLIR

Montreal Pierre Elliott Trudeau Intl

Wed 4/11

2:13 p.m.-1:10 p.m.

2 stops23h 57m

Liberia

Thu 19/11

2:20 p.m.-9:42 p.m.

2 stops30h 22m

C$ 750

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Mon 4/1

2:15 p.m.-10:55 p.m.

1 stop9h 40m

San José Juan Santamaria Intl

Mon 11/1

11:55 p.m.-6:45 p.m.

2 stops17h 50m

C$ 752

MontrealSan José

YUL - SJO

YULSJO

Montreal Pierre Elliott Trudeau Intl

Tue 19/1

3:00 p.m.-1:22 p.m.

2 stops23h 22m

San José Juan Santamaria Intl

Sat 30/1

1:15 a.m.-3:02 p.m.

2 stops12h 47m

C$ 752

Flights are sorted by cheapest round-trip flights first.

Deals found on 23/7

Showing 1-10 of 43 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$ 566). Flying from Montreal to Costa Rica in December is currently the most expensive (average of C$ 856). 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 July 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 132 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 Friday 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 1 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 July 2026.
Read through reviews of airlines operating flights from Montreal to Costa Rica, such as Porter Airlines,Air Transat, andWestJet. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
449 reviews
Check prices

Food

7.5

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Porter Airlines
8.0
Very good
449 reviews
Porter Airlines
8.0
Very good
449 reviews
Check prices

Food

7.5

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Air Transat
7.8
Good
568 reviews
Porter Airlines
8.0
Very good
449 reviews
Check prices

Food

7.5

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
WestJet
7.2
Good
3,415 reviews
Porter Airlines
8.0
Very good
449 reviews
Check prices

Food

7.5

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Air Canada
7.1
Good
11,400 reviews
Porter Airlines
8.0
Very good
449 reviews
Check prices

Food

7.5

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Avianca
6.5
Okay
2,522 reviews
Porter Airlines
8.0
Very good
449 reviews
Check prices

Food

7.5

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats

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 21h 40m. Fly via Copa Airlines, Avianca, 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 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$ 205), Avianca (C$ 229), and Air Canada (C$ 233).

  • What are the most reliable airlines from Montreal to Costa Rica?

    Before booking your flight to Costa Rica from Montreal, check out the most reliable airlines to get you to your destination on time: Air Transat (71%), Air Canada (56%), Air Canada Rouge( 50%).

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

    While on average a flight from Montreal to Costa Rica is generally C$ 576, our data shows the cheapest flight currently is C$ 324. When looking at the most popular route, (Montreal Pierre Elliott Trudeau Intl - Liberia), you can expect to pay C$ 465 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$ 566). Flying from Montreal to Costa Rica in December is currently the most expensive (average of C$ 856). 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 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapestC$ 202AverageC$ 749FlexibilityNo cancel feeOn-time70%
Search Copa Airlines flights
Air CanadaCheapestC$ 268AverageC$ 651FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air TransatCheapestC$ 323AverageC$ 780FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
United AirlinesCheapestC$ 354AverageC$ 570FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapestC$ 355AverageC$ 744FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 406AverageC$ 638FlexibilityNo cancel feeOn-time60%
Search WestJet flights
AviancaCheapestC$ 406AverageC$ 623FlexibilityNo cancel feeOn-time71%
Search Avianca flights
Porter AirlinesCheapestC$ 420AverageC$ 592FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
DeltaCheapestC$ 698AverageC$ 939FlexibilityNo 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!

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