HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Costa Rica

$346+ 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — SJO
abr. 8 — abr. 151
mar. 4/8
mar. 4/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Oshkosh to Costa Rica with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 abril 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$346
(American Airlines)

Popular in

April

Cheapest in

August

Average price

$980
Provider with most accurate pricing for Appleton Intl-San José Juan Santamaria Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Appleton Intl-San José Juan Santamaria Intl flights.
Search Deals
From Oshkosh to Costa Rica
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($72 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 abril 3, 2025.

This American Airlines deal was found by Cheapflights users on 4/2. 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.
lun. 8/186:11 pmATW - SJO
2 stops20h 09mAmerican Airlines
vie. 8/222:00 pmSJO - ATW
2 stops18h 15mAmerican Airlines
Deal found 4/2$346
This American Airlines deal was found by Cheapflights users on 4/2. 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.
sáb. 9/276:11 pmATW - LIR
2 stops19h 50mAmerican Airlines
sáb. 10/42:05 pmLIR - ATW
2 stops26h 35mAmerican Airlines
Deal found 4/2$365
This United deal was found by Cheapflights users on 4/2. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 4/275:29 pmATW - LIR
2 stops19h 41mUnited Airlines
sáb. 5/33:25 pmLIR - ATW
2 stops24h 24mUnited Airlines
Deal found 4/2$489
This Delta deal was found by Cheapflights users on 4/2. 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.
sáb. 9/275:29 amATW - LIR
1 stop7h 18mDelta
sáb. 10/41:12 pmLIR - ATW
1 stop7h 47mDelta
Deal found 4/2$508
This United deal was found by Cheapflights users on 4/2. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 4/2612:50 pmATW - SJO
2 stops24h 36mUnited Airlines
dom. 5/46:35 amSJO - ATW
2 stops28h 29mUnited Airlines
Deal found 4/2$686
This Delta deal was found by Cheapflights users on 4/2. 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.
mar. 5/205:35 amATW - SJO
1 stop7h 24mDelta
lun. 5/261:24 pmSJO - ATW
1 stop8h 02mDelta
Deal found 4/2$1,027
This Avianca deal was found by Cheapflights users on 4/2. 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.
sáb. 4/266:30 amATW - SJO
2 stops18h 00mAvianca
sáb. 5/31:40 amSJO - ATW
2 stops14h 09mAvianca
Deal found 4/2$2,006

Cheapflights Fare Finder

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 abril 3, 2025.
Use the filters below to find and compare flights from Oshkosh to Costa Rica that are best for you.

Fly from

Oshkosh

Fly to

Costa Rica

Route

Depart

Return

Price

AppletonSan José

ATW - SJO

ATWSJO

Appleton Intl

lun. 8/18

6:11 pm-1:20 pm

2 stops20h 09m

San José Juan Santamaria Intl

vie. 8/22

2:00 pm-9:15 am

2 stops18h 15m

$346

AppletonLiberia

ATW - LIR

ATWLIR

Appleton Intl

sáb. 9/27

6:11 pm-1:01 pm

2 stops19h 50m

Liberia

sáb. 10/4

2:05 pm-5:40 pm

2 stops26h 35m

$365

AppletonLiberia

ATW - LIR

ATWLIR

Appleton Intl

dom. 4/27

5:29 pm-12:10 pm

2 stops19h 41m

Liberia

sáb. 5/3

3:25 pm-4:49 pm

2 stops24h 24m

$489

AppletonLiberia

ATW - LIR

ATWLIR

Appleton Intl

sáb. 9/27

5:29 am-11:47 am

1 stop7h 18m

Liberia

sáb. 10/4

1:12 pm-9:59 pm

1 stop7h 47m

$508

AppletonSan José

ATW - SJO

ATWSJO

Appleton Intl

sáb. 4/26

12:50 pm-12:26 pm

2 stops24h 36m

San José Juan Santamaria Intl

dom. 5/4

6:35 am-12:04 pm

2 stops28h 29m

$686

AppletonSan José

ATW - SJO

ATWSJO

Appleton Intl

mar. 5/20

5:35 am-11:59 am

1 stop7h 24m

San José Juan Santamaria Intl

lun. 5/26

1:24 pm-10:26 pm

1 stop8h 02m

$1,027

AppletonSan José

ATW - SJO

ATWSJO

Appleton Intl

sáb. 4/26

6:30 am-11:30 pm

2 stops18h 00m

San José Juan Santamaria Intl

sáb. 5/3

1:40 am-4:49 pm

2 stops14h 09m

$2,006

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/2

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.

Cheapflights Insights

Everything you need to know about your flight from Oshkosh to Costa Rica

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 abril 3, 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 abril 3, 2025.
To help decide which airline to fly from Oshkosh to Costa Rica, see what other customers have to say about Delta, United Airlines and American Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,897 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

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
7,897 reviews
Delta
8.0
Very good
7,897 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

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
8,619 reviews
Delta
8.0
Very good
7,897 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

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
7,897 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

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
6.7
Okay
2,304 reviews
Delta
8.0
Very good
7,897 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

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

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.

Alternative routes for Oshkosh to Costa Rica

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Panama City flights
O'Hare Intl to Guatemala City flights
O'Hare Intl to San José flights
O'Hare Intl to Liberia flights
O'Hare Intl to Philip S.W.Goldson flights
O'Hare Intl to San Salvador flights
Minneapolis to San José flights
Minneapolis to Liberia flights
Minneapolis to Guatemala City flights
Milwaukee to Philip S.W.Goldson flights
Minneapolis to Panama City flights
Milwaukee to San José flights
Minneapolis to Philip S.W.Goldson flights
Minneapolis to San Salvador flights
Minneapolis to Coxen Hole flights
O'Hare Intl to San Pedro Sula flights
O'Hare Intl to Managua flights
O'Hare Intl to Coxen Hole flights
Milwaukee to Panama City flights
Minneapolis to Managua flights
Madison to Liberia flights
Milwaukee to Liberia flights
Madison to San José flights
Milwaukee to Guatemala City flights
Madison to Guatemala City flights
Madison to Philip S.W.Goldson flights
Appleton to Philip S.W.Goldson flights
Milwaukee to San Salvador flights
Appleton to Liberia flights
Minneapolis to San Pedro Sula flights
Green Bay to Guatemala City flights
O'Hare Intl to David flights
Milwaukee to Coxen Hole flights
Appleton to San José flights
Madison to Coxen Hole flights
Milwaukee to San Pedro Sula flights
Green Bay to San José flights
Duluth to San José flights
O'Hare Intl to Tegucigalpa flights
Duluth to Philip S.W.Goldson flights
Rhinelander to Liberia flights
Green Bay to Liberia flights
Appleton to San Pedro Sula flights
Milwaukee to Tegucigalpa flights
Wausau to Liberia flights
Wausau to San José flights

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 abril 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$279Average$388FlexibilityNo cancel feeOn-time65%
DeltaCheapest$366Average$889FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$388Average$664FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$431Average$654FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$463Average$681FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.