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Cheap flights from Saint John to Costa Rica from C$ 742

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
YSJ — SJO
25 Feb — 4 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from St John to Costa Rica

Enter your travel dates to find the best prices.

Cheapest flights from St John to Costa Rica
Explore the most affordable flight options available from St John to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 January 2026.

Fri 6/24:15 p.m.
YSJ
-
SJO
2 stops46h 41m
United Airlines
Sun 15/28:45 a.m.
SJO
-
YSJ
2 stops52h 55m
United Airlines
Deal found 26/1C$ 742
Tue 26/55:35 a.m.
YSJ
-
SJO
2 stops31h 36m
United Airlines
Thu 28/511:13 a.m.
SJO
-
YSJ
2 stops49h 27m
United Airlines
Deal found 25/1C$ 861
Tue 26/54:30 p.m.
YSJ
-
SJO
2 stops33h 45m
Air Canada
Thu 28/57:15 a.m.
SJO
-
YSJ
1 stop29h 25m
Air Canada
Deal found 25/1C$ 998
Fri 6/24:15 p.m.
YSJ
-
SJO
1 stop9h 00m
Air Canada
Sun 15/28:35 a.m.
SJO
-
YSJ
2 stops29h 05m
Air Canada
Deal found 25/1C$ 1,264

Find flight deals from St John to Costa Rica

Keep the following information in mind while searching for St John to Costa Rica flight deals. Data was last updated 26 January 2026.

Round-trip from

C$ 742
United Airlines
  • United Airlines
  • 6/2-15/2
  • 4 total stops
  • 99h 36m total
  • Saint John to Costa Rica
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St John 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 26 January 2026.
Use the filters below to find and compare flights from Saint John to Costa Rica that are best for you.

Fly from

St John

Fly to

Costa Rica

Route

Depart

Return

Price

Saint JohnSan José

YSJ - SJO

YSJSJO

Saint John

Fri 6/2

4:15 p.m.-12:56 p.m.

2 stops46h 41m

San José Juan Santamaria Intl

Sun 15/2

8:45 a.m.-3:40 p.m.

2 stops52h 55m

C$ 742

Saint JohnSan José

YSJ - SJO

YSJSJO

Saint John

Tue 26/5

5:35 a.m.-10:11 a.m.

2 stops31h 36m

San José Juan Santamaria Intl

Thu 28/5

11:13 a.m.-3:40 p.m.

2 stops49h 27m

C$ 861

Saint JohnSan José

YSJ - SJO

YSJSJO

Saint John

Tue 26/5

4:30 p.m.-11:15 p.m.

2 stops33h 45m

San José Juan Santamaria Intl

Thu 28/5

7:15 a.m.-3:40 p.m.

1 stop29h 25m

C$ 998

Saint JohnSan José

YSJ - SJO

YSJSJO

Saint John

Fri 6/2

4:15 p.m.-11:15 p.m.

1 stop9h 00m

San José Juan Santamaria Intl

Sun 15/2

8:35 a.m.-3:40 p.m.

2 stops29h 05m

C$ 1,264

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/1

Best time to book a flight from St John to Costa Rica

Have a flexible travel schedule? Discover the best time to fly to Costa Rica from St John 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 Saint John to Costa Rica

What is the cheapest month to book a flight from Saint John to Costa Rica?

Currently, October is the cheapest month in which you can book a flight from Saint John to Costa Rica (average of C$ 848). Flying from Saint John to Costa Rica in June is currently the most expensive (average of C$ 1,616). 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.

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 26 January 2026.
Get a feel of what it's like to fly with Air Canada from Saint John to Costa Rica by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,656 reviews
Check prices

Comfort

7.1

Entertainment

6.8

Food

6.3

Crew

7.8

Boarding

7.3

Overall

7.1

Reviews

1 / 20
4.0
Okay

Sugith,Jan 2026

YSB - YYZ

Left 2 hours late. Stuck on plane for an hour after boarding before take off.
Air Canada
7.1
Good
10,656 reviews
Air Canada
7.1
Good
10,656 reviews
Check prices

Comfort

7.1

Entertainment

6.8

Food

6.3

Crew

7.8

Boarding

7.3

Overall

7.1

Reviews

1 / 20
4.0
Okay

Sugith,Jan 2026

YSB - YYZ

Left 2 hours late. Stuck on plane for an hour after boarding before take off.

Related info for your journey

Find useful and relevant information for your journey from St John 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 airport do you fly from for flights from Saint John to Costa Rica?

    For a flight from Saint John to Costa Rica, you will be flying from Saint John. Saint John (YSJ) is just 15.1 km from the centre of the city.

  • How long is the flight from Saint John to Costa Rica?

    There are many flights that can get you from Saint John to Costa Rica in 33h 45m. Fly via United Airlines or Air Canada to get the fastest option. The distance between Saint John and Costa Rica is about 4297 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • Can I find deals for flights from St John to Costa Rica that include hotel bookings?

    Yes. In addition to deals on St John to Costa Rica flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St John to Costa Rica?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St John to Costa Rica.

  • Can I find deals for business class flights from St John to Costa Rica?

    Yes. Cheapflights offers flight deals from St John 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 Saint John to Costa Rica?

    Currently, October is the cheapest month in which you can book a flight from Saint John to Costa Rica (average of C$ 848). Flying from Saint John to Costa Rica in June is currently the most expensive (average of C$ 1,616). 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 St John to Costa Rica

See prices for flight routes from nearby airports that may be better suited for you.
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Fredericton to San José flights
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St John to San José flights
Moncton to Managua flights

Top airline flying from St John to Costa Rica

Discover the top airline that operate flights from St John 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 26 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 679AverageC$ 972FlexibilityNo cancel feeOn-time67%
Search Air Canada 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 St John to Costa Rica?

Deals for St John to Costa Rica flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from St John to Costa Rica?

Cheapflights simply makes it quick and affordable to book flights from St John to Costa Rica by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from St John to Costa Rica with no change fees?

Yes, we can. To see specific flights from St John to Costa Rica with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from St John to Costa Rica become cheaper?

Yes, Cheapflights offers price alerts on St John to Costa Rica flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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