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Cheap flights from Thunder Bay to Costa Rica from C$ 259

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 28/9. Fares are subject to change and may not be available on all flights or dates of travel.
YQT — SJO
9 Sep — 16 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Thunder Bay to Costa Rica

Enter your travel dates to find the best prices.

Cheapest flights from Thunder Bay to Costa Rica
Explore the most affordable flight options available from Thunder Bay to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 August 2026.

Sat 5/123:45 p.m. -
2 stops47h 44m
Tue 8/123:20 p.m. -
2 stops46h 50m
Deal found 6/8C$ 602
Sat 5/125:15 p.m. -
1 stop21h 55m
Tue 8/123:10 p.m. -
1 stop23h 56m
Deal found 6/8C$ 648
Sun 22/1111:20 a.m. -
1 stop12h 10m
Wed 25/118:45 a.m. -
1 stop30h 20m
Deal found 5/8C$ 730

Find flight deals from Thunder Bay to Costa Rica

Keep the following information in mind while searching for Thunder Bay to Costa Rica flight deals. Data was last updated 10 August 2026.

Round-trip from

C$ 585

One-way from

C$ 259
Air Canada
  • Air Canada
  • 9/1-17/1
  • 2 total stops
  • 58h 21m total
  • Thunder Bay to Costa Rica
Search Deals
WestJet
  • WestJet
  • 28/9
  • 2 total stops
  • 51h 25m total
  • Thunder Bay to Costa Rica
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Thunder Bay 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 10 August 2026.
Use the filters below to find and compare flights from Thunder Bay to Costa Rica that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Thunder BayLiberia

YQT Thunder Bay - LIR Liberia

YQTLIR

Thunder Bay

Sat 9/1

11:15 a.m.-2:10 p.m.

1 stop27h 55m

Liberia

Sun 17/1

3:10 p.m.-10:36 p.m.

1 stop30h 26m

C$ 585

Thunder BayLiberia

YQT Thunder Bay - LIR Liberia

YQTLIR

Thunder Bay

Sat 5/12

3:45 p.m.-2:29 p.m.

2 stops47h 44m

Liberia

Tue 8/12

3:20 p.m.-3:10 p.m.

2 stops46h 50m

C$ 602

Thunder BayLiberia

YQT Thunder Bay - LIR Liberia

YQTLIR

Thunder Bay

Sat 9/1

3:45 p.m.-2:29 p.m.

2 stops47h 44m

Liberia

Sun 17/1

3:20 p.m.-3:10 p.m.

2 stops46h 50m

C$ 634

Thunder BayLiberia

YQT Thunder Bay - LIR Liberia

YQTLIR

Thunder Bay

Sat 5/12

5:15 p.m.-2:10 p.m.

1 stop21h 55m

Liberia

Tue 8/12

3:10 p.m.-4:06 p.m.

1 stop23h 56m

C$ 648

Thunder BaySan José

YQT Thunder Bay - SJO San José Juan Santamaria Intl

YQTSJO

Thunder Bay

Sun 22/11

11:20 a.m.-10:30 p.m.

1 stop12h 10m

San José Juan Santamaria Intl

Wed 25/11

8:45 a.m.-4:05 p.m.

1 stop30h 20m

C$ 730
Quickest round-trip

Thunder BayLiberia

YQT Thunder Bay - LIR Liberia

YQTLIR

Thunder Bay

Thu 28/1

5:00 a.m.-2:10 p.m.

1 stop10h 10m

Liberia

Sat 6/2

3:10 p.m.-10:36 p.m.

1 stop30h 26m

C$ 928

Thunder BayLiberia

YQT Thunder Bay - LIR Liberia

YQTLIR

Thunder Bay

Sat 9/1

10:55 a.m.-2:29 p.m.

3 stops28h 34m

Liberia

Sun 17/1

3:20 p.m.-3:10 p.m.

2 stops46h 50m

C$ 1,162
Cheapest one-way

Thunder BayLiberia

YQT Thunder Bay - LIR Liberia

YQTLIR

Thunder Bay

Sat 9/1

11:15 a.m.-11:44 a.m.

2 stops49h 29m

C$ 268

Thunder BayLiberia

YQT Thunder Bay - LIR Liberia

YQTLIR

Thunder Bay

Tue 12/1

5:00 a.m.-12:56 p.m.

2 stops32h 56m

C$ 268
Quickest one-way

Thunder BayLiberia

YQT Thunder Bay - LIR Liberia

YQTLIR

Thunder Bay

Mon 11/1

5:00 a.m.-11:44 a.m.

2 stops31h 44m

C$ 268

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/8

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

Best time to book a flight from Thunder Bay to Costa Rica

Have a flexible travel schedule? Discover the best time to fly to Costa Rica from Thunder Bay 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 Thunder Bay to Costa Rica

No data available for this route at this time. Please check back soon.

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 10 August 2026.
Check out reviews from past customers who have flown with Porter Airlines from Thunder Bay to Costa Rica to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
454 reviews
Check prices

Entertainment

6.9

Food

7.6

Boarding

8.2

Crew

8.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.
Porter Airlines
8.0
Very good
454 reviews
Porter Airlines
8.0
Very good
454 reviews
Check prices

Entertainment

6.9

Food

7.6

Boarding

8.2

Crew

8.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.

Related info for your journey

Find useful and relevant information for your journey from Thunder Bay 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 Thunder Bay to Costa Rica?

    Most people fly from Thunder Bay (YQT) if they book a flight from Thunder Bay to Costa Rica. Thunder Bay is conveniently located just 5.6 km from Thunder Bay’s city centre.

  • How long is the flight from Thunder Bay to Costa Rica?

    A quick flight from Thunder Bay to Costa Rica can take about 27h 55m. Air Canada provides one of the quickest options available for as low as C$ 585. There are 4213 km between Thunder Bay and Costa Rica. This flight may include one or multiple stops.

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

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

  • How can I find direct flights from Thunder Bay to Costa Rica?

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

  • Can I find deals for business class flights from Thunder Bay to Costa Rica?

    Yes. Cheapflights offers flight deals from Thunder Bay 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.

See more FAQs

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Top airline flying from Thunder Bay to Costa Rica

Discover the top airline that operate flights from Thunder Bay 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 10 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 799AverageC$ 931FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights

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How does Cheapflights help users find flights from Thunder Bay to Costa Rica?

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By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Costa Rica from Thunder Bay.

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