$147+ Cheap flights from Oshkosh, WI to Costa Rica
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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — SJO
Mar 4 — Mar 111
1 adult, Economy
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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
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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 February 2, 2026.
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 2, 2026.
This American Airlines deal was found by Cheapflights users on 2/2. 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.
Sat 2/286:35 pm
ATW
- SJO
2 stops20h 18m
American Airlines
Wed 3/47:00 am
SJO
- ATW
1 stop10h 52m
American Airlines
Deal found 2/2![American Airlines logo]()
$435
This Delta deal was found by Cheapflights users on 2/1. 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.
Wed 2/256:50 am
ATW
- SJO
2 stops15h 12m
Delta
Tue 3/32:25 pm
SJO
- ATW
2 stops21h 02m
Delta
Deal found 2/1![Delta logo]()
$465
This American Airlines deal was found by Cheapflights users on 2/1. 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.
Thu 4/96:20 am
ATW
- SJO
1 stop16h 16m
American Airlines
Thu 4/166:30 am
SJO
- ATW
2 stops16h 10m
American Airlines
Deal found 2/1![American Airlines logo]()
$477
This American Airlines deal was found by Cheapflights users on 2/1. 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.
Fri 5/16:31 pm
ATW
- SJO
2 stops17h 36m
American Airlines
Fri 5/812:10 pm
SJO
- ATW
2 stops21h 04m
American Airlines
Deal found 2/1![American Airlines logo]()
$491
This United Airlines deal was found by Cheapflights users on 1/31. 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.
Mon 5/45:33 pm
ATW
- SJO
2 stops19h 48m
United Airlines
Wed 5/61:25 pm
SJO
- ATW
2 stops23h 36m
United Airlines
Deal found 1/31![United Airlines logo]()
$556
This American Airlines deal was found by Cheapflights users on 1/30. 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 1/315:04 pm
ATW
- SJO
2 stops19h 34m
American Airlines
Fri 2/137:00 am
SJO
- ATW
1 stop16h 24m
American Airlines
Deal found 1/30![American Airlines logo]()
$572
This United Airlines deal was found by Cheapflights users on 1/31. 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 2/282:39 pm
ATW
- SJO
2 stops22h 16m
United Airlines
Wed 3/412:35 pm
SJO
- ATW
2 stops19h 46m
United Airlines
Deal found 1/31![United Airlines logo]()
$577
This United Airlines deal was found by Cheapflights users on 1/31. 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.
Wed 6/245:00 am
ATW
- LIR
2 stops10h 25m
United Airlines
Wed 7/13:27 pm
LIR
- ATW
2 stops19h 22m
United Airlines
Deal found 1/31![United Airlines logo]()
$583
This American Airlines deal was found by Cheapflights users on 2/2. 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.
Tue 8/46:00 am
ATW
- LIR
1 stop8h 39m
American Airlines
Wed 8/121:59 pm
LIR
- ATW
2 stops26h 56m
American Airlines
Deal found 2/2![American Airlines logo]()
$599
This American Airlines deal was found by Cheapflights users on 2/1. 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 3/26:00 am
ATW
- LIR
1 stop7h 32m
American Airlines
Sat 3/73:13 pm
LIR
- ATW
2 stops16h 53m
American Airlines
Deal found 2/1![American Airlines logo]()
$603
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/269:36 am
ATW
- SJO
1 stop26h 46m
Multiple Airlines
Wed 7/811:23 am
SJO
- ATW
2 stops24h 52m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$605
This American Airlines deal was found by Cheapflights users on 2/1. 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.
Wed 4/157:01 am
ATW
- LIR
1 stop29h 27m
American Airlines
Wed 4/2212:28 pm
LIR
- ATW
1 stop8h 26m
American Airlines
Deal found 2/1![American Airlines logo]()
$609
Best flights from Oshkosh to Costa RicaDiscover 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 February 2, 2026.
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 February 2, 2026.
This American Airlines deal was found by Cheapflights users on 2/2. 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.
Sat 2/286:35 pm
ATW
- SJO
2 stops20h 18m
American Airlines
Wed 3/47:00 am
SJO
- ATW
1 stop10h 52m
American Airlines
Deal found 2/2![American Airlines logo]()
$435
This Delta deal was found by Cheapflights users on 2/1. 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.
Wed 2/256:50 am
ATW
- SJO
2 stops15h 12m
Delta
Tue 3/37:00 am
SJO
- ATW
1 stop14h 50m
Delta
Deal found 2/1![Delta logo]()
$435
This United Airlines deal was found by Cheapflights users on 1/30. 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.
Mon 5/42:43 pm
ATW
- SJO
2 stops22h 38m
United Airlines
Wed 5/612:44 pm
SJO
- ATW
2 stops18h 40m
United Airlines
Deal found 1/30![United Airlines logo]()
$556
This American Airlines deal was found by Cheapflights users on 1/31. 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.
Thu 4/91:42 pm
ATW
- SJO
2 stops22h 43m
American Airlines
Thu 4/166:30 am
SJO
- ATW
2 stops16h 11m
American Airlines
Deal found 1/31![American Airlines logo]()
$491
This United Airlines deal was found by Cheapflights users on 1/31. 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.
Wed 6/245:00 am
ATW
- LIR
2 stops10h 25m
United Airlines
Wed 7/13:27 pm
LIR
- ATW
2 stops19h 22m
United Airlines
Deal found 1/31![United Airlines logo]()
$583
This American Airlines deal was found by Cheapflights users on 1/31. 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 7/184:55 pm
ATW
- LIR
2 stops21h 13m
American Airlines
Sat 7/252:45 pm
LIR
- ATW
2 stops18h 39m
American Airlines
Deal found 1/31![American Airlines logo]()
$603
This United Airlines deal was found by Cheapflights users on 2/1. 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.
Mon 6/2910:34 am
ATW
- SJO
2 stops13h 05m
United Airlines
Sat 7/412:30 am
SJO
- ATW
2 stops12h 30m
United Airlines
Deal found 2/1![United Airlines logo]()
$630
This American Airlines deal was found by Cheapflights users on 2/1. 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 2/286:35 pm
ATW
- LIR
2 stops19h 50m
American Airlines
Sat 3/73:13 pm
LIR
- ATW
2 stops20h 36m
American Airlines
Deal found 2/1![American Airlines logo]()
$603
This United Airlines deal was found by Cheapflights users on 1/31. 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.
Wed 3/253:41 pm
ATW
- SJO
2 stops26h 35m
United Airlines
Thu 4/21:25 pm
SJO
- ATW
2 stops32h 03m
United Airlines
Deal found 1/31![United Airlines logo]()
$633
This American Airlines deal was found by Cheapflights users on 1/31. 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.
Wed 4/156:20 pm
ATW
- LIR
2 stops18h 08m
American Airlines
Wed 4/2212:29 pm
LIR
- ATW
2 stops20h 45m
American Airlines
Deal found 1/31![American Airlines logo]()
$603
This American Airlines deal was found by Cheapflights users on 2/1. 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 3/26:39 pm
ATW
- LIR
2 stops19h 46m
American Airlines
Sat 3/73:13 pm
LIR
- ATW
2 stops20h 36m
American Airlines
Deal found 2/1![American Airlines logo]()
$603
This American Airlines deal was found by Cheapflights users on 1/31. 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 6/274:55 pm
ATW
- SJO
2 stops20h 04m
American Airlines
Sat 7/116:12 am
SJO
- ATW
2 stops16h 19m
American Airlines
Deal found 1/31![American Airlines logo]()
$643
Last-minute flights from Oshkosh to Costa RicaDiscover last-minute flight deals from Oshkosh to Costa Rica. Data last updated February 2, 2026 and is based on user searches.
Discover last-minute flight deals from Oshkosh to Costa Rica. Data last updated February 2, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 1/30. 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 1/315:04 pm
ATW
- SJO
2 stops19h 34m
American Airlines
Fri 2/137:00 am
SJO
- ATW
1 stop16h 24m
American Airlines
Deal found 1/30![American Airlines logo]()
$572
This Delta deal was found by Cheapflights users on 1/30. 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 1/315:20 am
ATW
- SJO
1 stop9h 09m
Delta
Fri 2/137:00 am
SJO
- ATW
1 stop14h 50m
Delta
Deal found 1/30![Delta logo]()
$650
This American Airlines deal was found by Cheapflights users on 1/31. 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.
Fri 2/67:15 am
ATW
- SJO
1 stop15h 15m
American Airlines
Fri 2/203:20 pm
SJO
- ATW
2 stops17h 46m
American Airlines
Deal found 1/31![American Airlines logo]()
$695
This United Airlines deal was found by Cheapflights users on 2/1. 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.
Sun 2/155:23 pm
ATW
- SJO
2 stops27h 16m
United Airlines
Thu 2/1911:28 pm
SJO
- ATW
2 stops22h 04m
United Airlines
Deal found 2/1![United Airlines logo]()
$670
This Delta deal was found by Cheapflights users on 2/1. 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.
Mon 2/165:25 am
ATW
- SJO
1 stop16h 37m
Delta
Fri 2/207:00 am
SJO
- ATW
1 stop14h 50m
Delta
Deal found 2/1![Delta logo]()
$684
This Delta deal was found by Cheapflights users on 2/1. 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.
Mon 2/165:25 am
ATW
- SJO
1 stop16h 37m
Delta
Thu 2/192:25 pm
SJO
- ATW
2 stops21h 02m
Delta
Deal found 2/1![Delta logo]()
$689
This Delta deal was found by Cheapflights users on 2/1. 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.
Wed 2/256:50 am
ATW
- SJO
2 stops15h 12m
Delta
Tue 3/32:25 pm
SJO
- ATW
2 stops21h 02m
Delta
Deal found 2/1![Delta logo]()
$465
This American Airlines deal was found by Cheapflights users on 2/1. 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.
Wed 2/259:38 am
ATW
- SJO
1 stop10h 34m
American Airlines
Tue 3/37:00 am
SJO
- ATW
1 stop16h 24m
American Airlines
Deal found 2/1![American Airlines logo]()
$712
This American Airlines deal was found by Cheapflights users on 2/2. 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.
Sat 2/286:35 pm
ATW
- SJO
2 stops20h 18m
American Airlines
Wed 3/47:00 am
SJO
- ATW
1 stop10h 52m
American Airlines
Deal found 2/2![American Airlines logo]()
$435
This United Airlines deal was found by Cheapflights users on 1/31. 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 2/282:39 pm
ATW
- SJO
2 stops22h 16m
United Airlines
Wed 3/412:35 pm
SJO
- ATW
2 stops19h 46m
United Airlines
Deal found 1/31![United Airlines logo]()
$577
This American Airlines deal was found by Cheapflights users on 2/1. 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 2/286:35 pm
ATW
- LIR
2 stops19h 50m
American Airlines
Sat 3/73:13 pm
LIR
- ATW
2 stops20h 36m
American Airlines
Deal found 2/1![American Airlines logo]()
$603
This Gurufare deal was found by Cheapflights users on 2/1. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/286:35 pm
ATW
- LIR
1 stop18h 57m
GOL
Sat 3/71:23 pm
LIR
- ATW
1 stop10h 22m
GOL
Deal found 2/1![GOL logo]()
$921
One-way flights from Oshkosh to Costa RicaSearch for one-way flight options from Oshkosh to Costa Rica. Find affordable one-way fares based on user searches. Data last updated February 2, 2026.
Search for one-way flight options from Oshkosh to Costa Rica. Find affordable one-way fares based on user searches. Data last updated February 2, 2026.
This American Airlines deal was found by Cheapflights users on 1/31. 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 3/97:05 am
ATW
- SJO
2 stops15h 38m
American Airlines
Deal found 1/31![American Airlines logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 1/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/147:03 pm
ATW
- SJO
2 stops40h 39m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$246
This Kiwi.com deal was found by Cheapflights users on 1/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/95:06 pm
ATW
- SJO
3 stops18h 34m
Multiple Airlines
Deal found 1/31![Multiple Airlines logo]()
$251
This Delta deal was found by Cheapflights users on 1/31. 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.
Mon 3/95:17 am
ATW
- SJO
1 stop7h 38m
Delta
Deal found 1/31![Delta logo]()
$455
Find 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 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $435 (Delta) |
One-way from | $147 (American Airlines) |
Popular in | March |
Cheapest in | August |
Average price | $585 |
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 February 2, 2026.
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
Sat 2/28
6:35 pm-2:53 pm
2 stops20h 18m
San José Juan Santamaria Intl
Wed 3/4
7:00 am-5:52 pm
1 stop10h 52m
$435
AppletonSan José
ATW - SJO
ATWSJO
Appleton Intl
Wed 2/25
6:50 am-10:02 pm
2 stops15h 12m
San José Juan Santamaria Intl
Tue 3/3
7:00 am-9:50 pm
1 stop14h 50m
$435
AppletonSan José
ATW - SJO
ATWSJO
Appleton Intl
Thu 4/9
1:42 pm-11:25 am
2 stops22h 43m
San José Juan Santamaria Intl
Thu 4/16
6:30 am-11:41 pm
2 stops16h 11m
$491
AppletonSan José
ATW - SJO
ATWSJO
Appleton Intl
Mon 5/4
2:43 pm-12:21 pm
2 stops22h 38m
San José Juan Santamaria Intl
Wed 5/6
12:44 pm-8:24 am
2 stops18h 40m
$556
AppletonLiberia
ATW - LIR
ATWLIR
Appleton Intl
Wed 6/24
5:00 am-2:25 pm
2 stops10h 25m
Liberia
Wed 7/1
3:27 pm-11:49 am
2 stops19h 22m
$583
AppletonLiberia
ATW - LIR
ATWLIR
Appleton Intl
Sat 7/18
4:55 pm-1:08 pm
2 stops21h 13m
Liberia
Sat 7/25
2:45 pm-10:24 am
2 stops18h 39m
$603
AppletonLiberia
ATW - LIR
ATWLIR
Appleton Intl
Sat 2/28
6:35 pm-2:25 pm
2 stops19h 50m
Liberia
Sat 3/7
3:13 pm-11:49 am
2 stops20h 36m
$603
AppletonLiberia
ATW - LIR
ATWLIR
Appleton Intl
Wed 4/15
6:20 pm-11:28 am
2 stops18h 08m
Liberia
Wed 4/22
12:29 pm-10:14 am
2 stops20h 45m
$603
AppletonLiberia
ATW - LIR
ATWLIR
Appleton Intl
Mon 3/2
6:39 pm-2:25 pm
2 stops19h 46m
Liberia
Sat 3/7
3:13 pm-11:49 am
2 stops20h 36m
$603
AppletonSan José
ATW - SJO
ATWSJO
Appleton Intl
Mon 6/29
10:34 am-10:39 pm
2 stops13h 05m
San José Juan Santamaria Intl
Sat 7/4
12:30 am-2:00 pm
2 stops12h 30m
$630
Showing 1-10 of 16 results
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.
ATW-SJO
ATW-LIR
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
OS9-CR0
ATW-SJO
ATW-LIR
What is the cheapest month to book a flight from Oshkosh to Costa Rica?
Currently, August is the cheapest month in which you can book a flight from Oshkosh to Costa Rica (average of $194). Flying from Oshkosh to Costa Rica in July is currently the most expensive (average of $485). 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.
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 2, 2026.
Read through reviews of airlines operating flights from Oshkosh to Costa Rica, such as Delta and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.9
Overall
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Comfort
7.9
Overall
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Comfort
7.9
Overall
7.9
Crew
8.5
Boarding
8.1
Food
7.2
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
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.
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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.
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 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$221 | Average$756 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$296 | Average$587 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$417 | Average$636 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$417 | Average$686 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$475 | Average$624 | FlexibilityNo cancel fee | On-time69% |