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$487+ Cheap flights from Oshkosh, WI to Costa Rica

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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — SJO
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Oshkosh to Costa Rica

Keep the following information in mind while searching for Oshkosh to Costa Rica flight deals. Data was last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$487
(Mytrip)

Popular in

April

Cheapest in

September

Average price

$686
Provider with most accurate pricing for Appleton Intl-San José Juan Santamaria Intl flight deals.
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Provider most trusted by Cheapflights users for Appleton Intl-San José Juan Santamaria Intl flights.
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From Oshkosh to Costa Rica
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Highest demand for flights based on searches. 4% potential increase in price ($38 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Oshkosh to Costa Rica

Cheapest flights from Oshkosh to Costa Rica
Explore the most affordable flight options available from Oshkosh to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This Mytrip deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/66:30 amATW - SJO
1 stop18h 20mMultiple Airlines
Thu 3/1312:26 pmSJO - ATW
2 stops24h 07mMultiple Airlines
Deal found 2/20$487
This American Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/275:00 amATW - LIR
1 stop7h 20mAmerican Airlines
Sat 5/312:25 pmLIR - ATW
1 stop9h 59mAmerican Airlines
Deal found 2/20$559
This American Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/214:02 pmATW - SJO
2 stops22h 03mAmerican Airlines
Sat 4/261:45 pmSJO - ATW
2 stops20h 09mAmerican Airlines
Deal found 2/20$563
This United Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/158:15 amATW - SJO
2 stops37h 40mUnited Airlines
Mon 3/245:30 amSJO - ATW
2 stops29h 27mUnited Airlines
Deal found 2/20$670
This Delta deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/95:20 amATW - SJO
1 stop17h 04mDelta
Tue 3/117:00 amSJO - ATW
2 stops26h 25mDelta
Deal found 2/20$1,089
This Avianca deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/266:30 amATW - SJO
2 stops18h 00mAvianca
Sat 5/31:40 amSJO - ATW
2 stops14h 09mAvianca
Deal found 2/19$1,915

Find flights from Oshkosh to Costa Rica within your budget

Customize your flight search to find flights from Oshkosh 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 2,558,603 searches. Data last updated February 20, 2025.

Fly from

Oshkosh

Fly to

Costa Rica

Route

Depart

Return

Price

AppletonSan José

ATW - SJO

ATWSJO

Appleton Intl

Thu 3/6

6:30 am-12:50 am

1 stop18h 20m

San José Juan Santamaria Intl

Thu 3/13

12:26 pm-1:33 pm

2 stops24h 07m

$487

AppletonLiberia

ATW - LIR

ATWLIR

Appleton Intl

Sun 4/27

5:00 am-11:20 am

1 stop7h 20m

Liberia

Sat 5/3

12:25 pm-11:24 pm

1 stop9h 59m

$559

AppletonSan José

ATW - SJO

ATWSJO

Appleton Intl

Mon 4/21

4:02 pm-1:05 pm

2 stops22h 03m

San José Juan Santamaria Intl

Sat 4/26

1:45 pm-10:54 am

2 stops20h 09m

$563

AppletonSan José

ATW - SJO

ATWSJO

Appleton Intl

Sat 3/15

8:15 am-8:55 pm

2 stops37h 40m

San José Juan Santamaria Intl

Mon 3/24

5:30 am-11:57 am

2 stops29h 27m

$670

AppletonSan José

ATW - SJO

ATWSJO

Appleton Intl

Sun 3/9

5:20 am-9:24 pm

1 stop17h 04m

San José Juan Santamaria Intl

Tue 3/11

7:00 am-10:25 am

2 stops26h 25m

$1,089

AppletonSan José

ATW - SJO

ATWSJO

Appleton Intl

Sat 4/26

6:30 am-11:30 pm

2 stops18h 00m

San José Juan Santamaria Intl

Sat 5/3

1:40 am-4:49 pm

2 stops14h 09m

$1,915

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Best time to book a flight from Oshkosh to Costa Rica

Have a flexible travel schedule? Discover the best time to fly to Costa Rica from Oshkosh 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.

Travel insights for flights from Oshkosh to Costa Rica

Get recent, data-driven insights about flights from Oshkosh to Costa Rica including ideal travel times, pricing trends, and more.

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

Currently, September is the cheapest month in which you can book a flight from Oshkosh to Costa Rica (average of $398). Flying from Oshkosh to Costa Rica in March is currently the most expensive (average of $555). 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 OS9 to CR?

Find hourly flight availability from Oshkosh 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 February 20, 2025.

When flying from Oshkosh 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.

Rainfall in Costa Rica by month

Plan your trip to Costa Rica by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Costa Rica ranges from 0.0 - 11.8 inches per month. September is typically the wettest month, when rainfall can reach 11.8 in. February is typically the driest time to visit Costa Rica when rainfall is around 0.0 in.

Temperature in Costa Rica by month

Plan your trip to Costa Rica by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Costa Rica, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 64.4 F).

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 February 20, 2025.
Delta
8.0
Very good
8,220 reviews

Comfort

8.0

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,220 reviews
Delta
8.0
Very good
8,220 reviews

Comfort

8.0

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,766 reviews
Delta
8.0
Very good
8,220 reviews

Comfort

8.0

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,220 reviews

Comfort

8.0

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Avianca
6.8
Okay
2,435 reviews
Delta
8.0
Very good
8,220 reviews

Comfort

8.0

Overall

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Oshkosh to Costa Rica. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Oshkosh 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 Oshkosh to Costa Rica?

    Currently, September is the cheapest month in which you can book a flight from Oshkosh to Costa Rica (average of $398). Flying from Oshkosh to Costa Rica in March is currently the most expensive (average of $555). 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

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Alternative routes for Oshkosh to Costa Rica

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Oshkosh to Costa Rica

Discover the top 5 airlines that operate flights from Oshkosh 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 2,558,603 searches. Data last updated February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$292Average$413FlexibilityNo cancel feeOn-time65%
DeltaCheapest$366Average$880FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$388Average$662FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$431Average$657FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$463Average$682FlexibilityNo cancel feeOn-time63%
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