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.

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).

What are the most popular airlines that fly from Oshkosh to Costa Rica?

When booking a flight from Oshkosh to Costa Rica, you may want to consider flying on American Airlines, Delta or Spirit Airlines as they are the most popular for this route.

What is the cheapest month to fly from Oshkosh to Costa Rica?

Due to multiple factors, expect to potentially pay more when booking in April. For low rates, November can be a great choice for travel to Costa Rica. Flights to Costa Rica from Oshkosh in November are about $755 on average during November, but can be found for as low as $545.

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.

$831+ Flights from Oshkosh to Costa Rica

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Cheap flight deals from Oshkosh to Costa Rica

Round-trip from	$458 (American Airlines)
Popular in	April
Cheapest in	November

From Oshkosh to Costa Rica

Search Deals

Highest demand for flights based on searches. 5% potential increase in price ($45 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).

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 July 2, 2025.

Sat 9/276:18 pmATW - SJO

2 stops17h 54mAmerican Airlines

Tue 9/307:27 amSJO - ATW

1 stop13h 05mAmerican Airlines

Deal found 7/1

$458

Tue 8/265:34 amATW - LIR

1 stop7h 26mDelta

Sat 8/301:25 pmLIR - ATW

1 stop8h 28mDelta

Deal found 6/30

$498

Sat 9/275:35 amATW - SJO

1 stop7h 33mDelta

Tue 9/301:35 pmSJO - ATW

1 stop8h 05mDelta

Deal found 6/30

$531

Tue 8/263:21 pmATW - LIR

2 stops21h 24mAmerican Airlines

Sat 8/302:26 pmLIR - ATW

2 stops29h 59mAmerican Airlines

Deal found 7/1

$581

Fri 8/153:45 pmATW - SJO

2 stops19h 26mUnited Airlines

Fri 8/221:30 pmSJO - ATW

2 stops23h 36mUnited Airlines

Deal found 7/1

$792

Sat 11/158:20 amATW - SJO

2 stops15h 55mAvianca

Fri 11/212:15 amSJO - ATW

2 stops14h 37mAvianca

Deal found 7/1

$2,334

Best flights from Oshkosh to Costa Rica
Discover carefully curated flight deals from Oshkosh to Costa Rica that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 2, 2025.

Sat 9/276:18 pmATW - SJO

2 stops17h 54mAmerican Airlines

Tue 9/307:27 amSJO - ATW

1 stop13h 05mAmerican Airlines

Deal found 7/1

$458

Tue 8/265:34 amATW - LIR

1 stop7h 26mDelta

Sat 8/301:25 pmLIR - ATW

1 stop8h 28mDelta

Deal found 6/30

$498

Fri 8/153:45 pmATW - SJO

2 stops19h 26mUnited Airlines

Fri 8/221:30 pmSJO - ATW

2 stops23h 36mUnited Airlines

Deal found 7/1

$792

Sat 9/275:35 amATW - SJO

1 stop7h 33mDelta

Tue 9/301:35 pmSJO - ATW

1 stop8h 05mDelta

Deal found 6/30

$531

Tue 8/263:21 pmATW - LIR

2 stops21h 24mAmerican Airlines

Sat 8/302:26 pmLIR - ATW

2 stops29h 59mAmerican Airlines

Deal found 7/1

$581

Sat 11/158:20 amATW - SJO

2 stops15h 55mAvianca

Fri 11/212:15 amSJO - ATW

2 stops14h 37mAvianca

Deal found 7/1

$2,334

Last-minute flights from Oshkosh to Costa Rica
Discover last-minute flight deals from Oshkosh to Costa Rica. Data last updated July 2, 2025 and is based on user searches.

Fri 8/153:45 pmATW - SJO

2 stops19h 26mUnited Airlines

Fri 8/221:30 pmSJO - ATW

2 stops23h 36mUnited Airlines

Deal found 7/1

$792

Tue 8/265:34 amATW - LIR

1 stop7h 26mDelta

Sat 8/301:25 pmLIR - ATW

1 stop8h 28mDelta

Deal found 7/1

$498

Tue 8/263:21 pmATW - LIR

2 stops21h 24mAmerican Airlines

Sat 8/302:26 pmLIR - ATW

2 stops29h 59mAmerican Airlines

Deal found 7/1

$581

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

AppletonSan José

ATW - SJO

ATWSJO

Appleton Intl

Sat 9/27

6:18 pm-11:12 am

2 stops17h 54m

San José Juan Santamaria Intl

Tue 9/30

7:27 am-9:32 pm

1 stop13h 05m

$458

AppletonLiberia

ATW - LIR

ATWLIR

Appleton Intl

Tue 8/26

5:34 am-12:00 pm

1 stop7h 26m

Liberia

Sat 8/30

1:25 pm-10:53 pm

1 stop8h 28m

$498

AppletonSan José

ATW - SJO

ATWSJO

Appleton Intl

Sat 9/27

5:35 am-12:08 pm

1 stop7h 33m

San José Juan Santamaria Intl

Tue 9/30

1:35 pm-10:40 pm

1 stop8h 05m

$531

AppletonLiberia

ATW - LIR

ATWLIR

Appleton Intl

Tue 8/26

3:21 pm-11:45 am

2 stops21h 24m

Liberia

Sat 8/30

2:26 pm-9:25 pm

2 stops29h 59m

$581

AppletonSan José

ATW - SJO

ATWSJO

Appleton Intl

Fri 8/15

3:45 pm-10:11 am

2 stops19h 26m

San José Juan Santamaria Intl

Fri 8/22

1:30 pm-2:06 pm

2 stops23h 36m

$792

AppletonSan José

ATW - SJO

ATWSJO

Appleton Intl

Sat 11/15

8:20 am-12:15 am

2 stops15h 55m

San José Juan Santamaria Intl

Fri 11/21

2:15 am-4:52 pm

2 stops14h 37m

$2,334

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

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?

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.

Reviews of airlines servicing Costa Rica

Read through reviews of airlines operating flights from Oshkosh to Costa Rica, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,983 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,983 reviews

Delta

8.0

Very good

7,983 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,861 reviews

Delta

8.0

Very good

7,983 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,983 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Avianca

6.7

Okay

2,363 reviews

Delta

8.0

Very good

7,983 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

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Top 5 airlines flying from Oshkosh to Costa Rica

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$279	Average$449	FlexibilityNo cancel fee	On-time65%
Delta	Cheapest$366	Average$800	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$426	Average$751	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$453	Average$664	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$463	Average$681	FlexibilityNo cancel fee	On-time63%

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$458+ 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 9/27. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Oshkosh to Costa Rica with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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 July 2, 2025.

Round-trip from

Popular in

Cheapest in

Find flight deals from Oshkosh to Costa Rica

Cheapest flights from Oshkosh to Costa RicaExplore 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 July 2, 2025.

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 July 2, 2025.

Cheapflights Fare Finder

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

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.

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?

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 July 2, 2025.

Reviews of airlines servicing Costa Rica

Read through reviews of airlines operating flights from Oshkosh to Costa Rica, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

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.

Top 5 airlines flying from Oshkosh to Costa Rica

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Book with Flexibility

Travel Smart

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 July 2, 2025.