$547+ 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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — SJO
Apr 30 — May 71
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 April 25, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $580 (American Airlines) |
Popular in | December |
Cheapest in | August |
Average price | $980 |
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 April 25, 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 April 25, 2025.
This Delta deal was found by Cheapflights users on 4/25. 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 4/275:20 amATW - LIR
1 stop7h 17mDelta
Sat 5/31:02 pmLIR - ATW
1 stop8h 27mDelta
Deal found 4/25![Delta logo]()
$547
This American Airlines deal was found by Cheapflights users on 4/25. 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.
Sat 11/154:50 pmATW - SJO
2 stops19h 15mAmerican Airlines
Sat 11/223:50 pmSJO - ATW
2 stops18h 57mAmerican Airlines
Deal found 4/25![American Airlines logo]()
$550
This American Airlines deal was found by Cheapflights users on 4/25. 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 4/276:30 amATW - LIR
1 stop7h 35mAmerican Airlines
Sat 5/32:17 pmLIR - ATW
2 stops24h 15mAmerican Airlines
Deal found 4/25![American Airlines logo]()
$551
This Delta deal was found by Cheapflights users on 4/24. 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.
Sat 4/265:20 amATW - SJO
1 stop9h 08mDelta
Sun 5/41:20 pmSJO - ATW
1 stop8h 09mDelta
Deal found 4/24![Delta logo]()
$591
This Avianca deal was found by Cheapflights users on 4/25. 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.
Tue 5/206:30 amATW - SJO
2 stops18h 00mAvianca
Sun 5/251:40 amSJO - ATW
2 stops14h 08mAvianca
Deal found 4/25![Avianca logo]()
$1,858
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 April 25, 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
Tue 5/20
4:37 pm-12:50 pm
2 stops21h 13m
San José Juan Santamaria Intl
Mon 5/26
6:03 am-11:34 pm
2 stops16h 31m
$580
AppletonSan José
ATW - SJO
ATWSJO
Appleton Intl
Tue 5/20
5:35 am-11:59 am
1 stop7h 24m
San José Juan Santamaria Intl
Mon 5/26
1:24 pm-10:26 pm
1 stop8h 02m
$592
AppletonSan José
ATW - SJO
ATWSJO
Appleton Intl
Tue 5/20
6:30 am-11:30 pm
2 stops18h 00m
San José Juan Santamaria Intl
Sun 5/25
1:40 am-4:48 pm
2 stops14h 08m
$1,858
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 April 25, 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 April 25, 2025.
Crew
8.5
Boarding
8.2
Entertainment
7.9
Comfort
7.9
Overall
8.0
Food
7.3
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Crew
8.5
Boarding
8.2
Entertainment
7.9
Comfort
7.9
Overall
8.0
Food
7.3
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Crew
8.5
Boarding
8.2
Entertainment
7.9
Comfort
7.9
Overall
8.0
Food
7.3
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Crew
8.5
Boarding
8.2
Entertainment
7.9
Comfort
7.9
Overall
8.0
Food
7.3
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
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.
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
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 April 25, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$292 | Average$397 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$366 | Average$845 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$388 | Average$665 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$431 | Average$655 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$463 | Average$681 | FlexibilityNo cancel fee | On-time63% |