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$179+ Cheap flights from Milwaukee (MKE) 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 5/21. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — SJO
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheap flight deals from Milwaukee to Costa Rica

Keep the following information in mind while searching for Milwaukee to Costa Rica flight deals. Data was last updated May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$303
(Kiwi.com)

One-way from

$179
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$522
Provider with most accurate pricing for Milwaukee-Mitchell-San José Juan Santamaria Intl flight deals.
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Provider most trusted by Cheapflights users for Milwaukee-Mitchell-San José Juan Santamaria Intl flights.
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From Milwaukee-Mitchell to Costa Rica
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One-way flight from Milwaukee-Mitchell to Costa Rica
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Highest demand for flights based on searches. 10% potential increase in price ($67 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find flight deals from Milwaukee to Costa Rica

Cheapest flights from Milwaukee to Costa Rica
Explore the most affordable flight options available from Milwaukee to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

This Kiwi.com deal was found by Cheapflights users on 4/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2712:22 pmMKE - SJO
1 stop23h 05mSpirit Airlines
Fri 5/3011:32 amSJO - MKE
1 stop22h 55mSpirit Airlines
Deal found 4/30$303
This American Airlines deal was found by Cheapflights users on 4/29. 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 8/266:16 amMKE - SJO
1 stop12h 59mAmerican Airlines
Wed 9/37:35 amSJO - MKE
1 stop8h 08mAmerican Airlines
Deal found 4/29$426
This Delta deal was found by Cheapflights users on 4/29. 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 6/295:35 amMKE - LIR
1 stop7h 25mDelta
Wed 7/21:25 pmLIR - MKE
1 stop9h 33mDelta
Deal found 4/29$426
This Delta deal was found by Cheapflights users on 4/29. 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 8/246:00 amMKE - SJO
1 stop6h 48mDelta
Thu 9/41:08 pmSJO - MKE
1 stop9h 17mDelta
Deal found 4/29$428
This American Airlines deal was found by Cheapflights users on 4/29. 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 9/296:47 amMKE - LIR
1 stop7h 14mAmerican Airlines
Thu 10/22:05 pmLIR - MKE
2 stops18h 29mAmerican Airlines
Deal found 4/29$429
This Mytrip deal was found by Cheapflights users on 4/29. 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.
Sun 7/138:51 pmMKE - SJO
1 stop19h 22mMultiple Airlines
Tue 7/151:41 pmSJO - MKE
1 stop29h 15mMultiple Airlines
Deal found 4/29$450
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Sat 6/145:29 pmMKE - LIR
2 stops21h 54mUnited Airlines
Sat 6/213:25 pmLIR - MKE
2 stops17h 57mUnited Airlines
Deal found 4/30$468
This United Airlines deal was found by Cheapflights users on 4/29. 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 8/246:00 amMKE - SJO
2 stops14h 37mUnited Airlines
Thu 9/47:55 amSJO - MKE
1 stop8h 18mUnited Airlines
Deal found 4/29$522
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/133:06 pmMKE - SJO
2 stops33h 46mAlaska Airlines
Wed 6/41:06 amSJO - MKE
2 stops21h 53mAlaska Airlines
Deal found 4/29$687
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/296:30 amMKE - LIR
2 stops24h 50mAlaska Airlines
Thu 10/211:20 amLIR - MKE
3 stops35h 39mAlaska Airlines
Deal found 4/29$772
This Avianca deal was found by Cheapflights users on 4/29. 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.
Sun 8/2410:50 amMKE - SJO
2 stops13h 25mAvianca
Wed 9/31:55 amSJO - MKE
2 stops14h 01mAvianca
Deal found 4/29$847

Cheapflights Fare Finder

Customize your flight search to find flights from Milwaukee 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 May 1, 2025.
Use the filters below to find and compare flights from Milwaukee to Costa Rica that are best for you.

Fly from

Milwaukee

Fly to

Costa Rica

Route

Depart

Return

Price

MilwaukeeSan José

MKE - SJO

MKESJO

Milwaukee-Mitchell

Tue 5/27

12:22 pm-10:27 am

1 stop23h 05m

San José Juan Santamaria Intl

Fri 5/30

11:32 am-11:27 am

1 stop22h 55m

$303

MilwaukeeSan José

MKE - SJO

MKESJO

Milwaukee-Mitchell

Tue 8/26

6:16 am-6:15 pm

1 stop12h 59m

San José Juan Santamaria Intl

Wed 9/3

7:35 am-4:43 pm

1 stop8h 08m

$426

MilwaukeeLiberia

MKE - LIR

MKELIR

Milwaukee-Mitchell

Sun 6/29

5:35 am-12:00 pm

1 stop7h 25m

Liberia

Wed 7/2

1:25 pm-11:58 pm

1 stop9h 33m

$426

MilwaukeeSan José

MKE - SJO

MKESJO

Milwaukee-Mitchell

Sun 8/24

6:00 am-11:48 am

1 stop6h 48m

San José Juan Santamaria Intl

Thu 9/4

1:08 pm-11:25 pm

1 stop9h 17m

$428

MilwaukeeLiberia

MKE - LIR

MKELIR

Milwaukee-Mitchell

Mon 9/29

6:47 am-1:01 pm

1 stop7h 14m

Liberia

Thu 10/2

2:05 pm-9:34 am

2 stops18h 29m

$429

MilwaukeeSan José

MKE - SJO

MKESJO

Milwaukee-Mitchell

Sun 7/13

8:51 pm-3:13 pm

1 stop19h 22m

San José Juan Santamaria Intl

Tue 7/15

1:41 pm-7:56 pm

1 stop29h 15m

$450

MilwaukeeLiberia

MKE - LIR

MKELIR

Milwaukee-Mitchell

Sat 6/14

5:29 pm-2:23 pm

2 stops21h 54m

Liberia

Sat 6/21

3:25 pm-10:22 am

2 stops17h 57m

$468

MilwaukeeSan José

MKE - SJO

MKESJO

Milwaukee-Mitchell

Sun 8/24

6:00 am-7:37 pm

2 stops14h 37m

San José Juan Santamaria Intl

Thu 9/4

7:55 am-5:13 pm

1 stop8h 18m

$522

MilwaukeeSan José

MKE - SJO

MKESJO

Milwaukee-Mitchell

Tue 5/13

3:06 pm-11:52 pm

2 stops33h 46m

San José Juan Santamaria Intl

Wed 6/4

1:06 am-11:59 pm

2 stops21h 53m

$687

MilwaukeeLiberia

MKE - LIR

MKELIR

Milwaukee-Mitchell

Mon 9/29

6:30 am-6:20 am

2 stops24h 50m

Liberia

Thu 10/2

11:20 am-11:59 pm

3 stops35h 39m

$772

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 17 results
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Best time to book a flight from Milwaukee to Costa Rica

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

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

Currently, September is the cheapest month in which you can book a flight from Milwaukee to Costa Rica (average of $398). Flying from Milwaukee 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 MKE to CR?

Find hourly flight availability from Milwaukee 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 May 1, 2025.

When flying from Milwaukee 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 May 1, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta and LATAM Airlines from Milwaukee to Costa Rica. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,972 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,934 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
LATAM Airlines
7.5
Good
1,767 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

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

  • What airport do you fly from for flights from Milwaukee to Costa Rica?

    Milwaukee-Mitchell (MKE) is the airport you will fly out of if you book a flight from Milwaukee to Costa Rica. It is only a 6.4 mi journey to Milwaukee-Mitchell (MKE) from Milwaukee’s city center.

  • What are the cheapest airlines to fly from Milwaukee to Costa Rica one-way?

    $179 is the cheapest one-way deal found within the past few days, from Spirit Airlines. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $229 and $262, respectively.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Milwaukee to Costa Rica (average of $398). Flying from Milwaukee 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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Alternative routes for Milwaukee 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 Milwaukee to Costa Rica

Discover the top 5 airlines that operate flights from Milwaukee 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$292Average$407FlexibilityNo cancel feeOn-time65%
DeltaCheapest$366Average$632FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$415Average$662FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$432Average$614FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$463Average$681FlexibilityNo cancel feeOn-time63%

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