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$204+ 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — SJO
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
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 September 17, 2025.

Round-trip from

$426
(Delta)

One-way from

$204
(Delta)

Popular in

December

Cheapest in

September

Average price

$552
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. 2% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 17, 2025.

This Delta deal was found by Cheapflights users on 9/16. 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 11/1910:16 amMKE - SJO
1 stop11h 51mDelta
Tue 11/252:31 pmSJO - MKE
1 stop9h 25mDelta
Deal found 9/16$426
This American Airlines deal was found by Cheapflights users on 9/16. 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 11/196:15 amMKE - SJO
2 stops14h 50mAmerican Airlines
Tue 11/251:11 pmSJO - MKE
2 stops10h 51mAmerican Airlines
Deal found 9/16$430
This American Airlines deal was found by Cheapflights users on 9/16. 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 11/276:12 amMKE - SJO
1 stop8h 17mAmerican Airlines
Tue 12/26:22 amSJO - MKE
1 stop15h 09mAmerican Airlines
Deal found 9/16$446
This American Airlines deal was found by Cheapflights users on 9/16. 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 11/159:05 amMKE - SJO
2 stops12h 12mAmerican Airlines
Fri 11/211:11 pmSJO - MKE
2 stops10h 32mAmerican Airlines
Deal found 9/16$450
This Delta deal was found by Cheapflights users on 9/14. 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 11/35:47 amMKE - LIR
1 stop6h 53mDelta
Thu 11/62:05 pmLIR - MKE
1 stop9h 50mDelta
Deal found 9/14$459
This American Airlines deal was found by Cheapflights users on 9/14. 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 11/36:12 amMKE - LIR
1 stop7h 55mAmerican Airlines
Thu 11/61:21 pmLIR - MKE
2 stops21h 59mAmerican Airlines
Deal found 9/14$463
This Delta deal was found by Cheapflights users on 9/16. 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.
Fri 10/315:47 amMKE - SJO
1 stop7h 11mDelta
Fri 11/72:15 pmSJO - MKE
1 stop9h 40mDelta
Deal found 9/16$476
This American Airlines deal was found by Cheapflights users on 9/15. 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 12/66:34 pmMKE - LIR
1 stop17h 56mAmerican Airlines
Sat 12/132:40 pmLIR - MKE
1 stop8h 25mAmerican Airlines
Deal found 9/15$479
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Thu 10/168:00 amMKE - SJO
1 stop12h 37mUnited Airlines
Thu 10/2312:44 pmSJO - MKE
1 stop9h 40mUnited Airlines
Deal found 9/17$483
This American Airlines deal was found by Cheapflights users on 9/17. 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 11/15:47 pmMKE - LIR
2 stops21h 26mAmerican Airlines
Sat 11/81:21 pmLIR - MKE
2 stops19h 01mAmerican Airlines
Deal found 9/17$483
This Kiwi.com deal was found by Cheapflights users on 9/17. 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.
Sun 10/121:55 pmMKE - SJO
1 stop21h 46mMultiple Airlines
Thu 10/308:49 amSJO - MKE
2 stops33h 30mMultiple Airlines
Deal found 9/17$490
This American Airlines deal was found by Cheapflights users on 9/17. 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 10/128:16 pmMKE - SJO
2 stops16h 44mAmerican Airlines
Thu 10/302:40 pmSJO - MKE
2 stops21h 33mAmerican Airlines
Deal found 9/17$520

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 September 17, 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

Wed 11/19

10:16 am-10:07 pm

1 stop11h 51m

San José Juan Santamaria Intl

Tue 11/25

2:31 pm-11:56 pm

1 stop9h 25m

$426

MilwaukeeSan José

MKE - SJO

MKESJO

Milwaukee-Mitchell

Sun 2/8

10:25 am-10:15 pm

1 stop11h 50m

San José Juan Santamaria Intl

Tue 2/10

7:00 am-11:27 pm

1 stop16h 27m

$440

MilwaukeeLiberia

MKE - LIR

MKELIR

Milwaukee-Mitchell

Mon 11/3

5:47 am-12:40 pm

1 stop6h 53m

Liberia

Thu 11/6

2:05 pm-11:55 pm

1 stop9h 50m

$459

MilwaukeeLiberia

MKE - LIR

MKELIR

Milwaukee-Mitchell

Sat 11/29

3:33 pm-12:18 pm

2 stops20h 45m

Liberia

Fri 12/5

3:28 pm-10:46 am

2 stops19h 18m

$463

MilwaukeeLiberia

MKE - LIR

MKELIR

Milwaukee-Mitchell

Mon 11/3

6:12 am-2:07 pm

1 stop7h 55m

Liberia

Thu 11/6

3:13 pm-11:20 am

1 stop20h 07m

$468

MilwaukeeLiberia

MKE - LIR

MKELIR

Milwaukee-Mitchell

Sat 11/1

4:59 pm-12:21 pm

2 stops20h 22m

Liberia

Sat 11/8

2:37 pm-8:22 am

1 stop17h 45m

$483

MilwaukeeSan José

MKE - SJO

MKESJO

Milwaukee-Mitchell

Thu 2/5

2:45 pm-10:15 pm

1 stop7h 30m

San José Juan Santamaria Intl

Wed 2/11

2:20 pm-11:27 pm

1 stop9h 07m

$483

MilwaukeeSan José

MKE - SJO

MKESJO

Milwaukee-Mitchell

Sun 2/8

1:20 pm-10:15 pm

1 stop8h 55m

San José Juan Santamaria Intl

Sat 2/14

7:00 am-7:05 pm

1 stop12h 05m

$483

MilwaukeeSan José

MKE - SJO

MKESJO

Milwaukee-Mitchell

Mon 2/9

1:56 pm-11:27 am

1 stop21h 31m

San José Juan Santamaria Intl

Wed 2/11

12:22 pm-12:51 pm

1 stop24h 29m

$497

MilwaukeeSan José

MKE - SJO

MKESJO

Milwaukee-Mitchell

Mon 2/9

5:00 am-12:56 pm

1 stop7h 56m

San José Juan Santamaria Intl

Tue 2/10

2:20 pm-10:59 pm

1 stop8h 39m

$550

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 25 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 $554). 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 September 17, 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.

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 September 17, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Milwaukee to Costa Rica. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,961 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,926 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Spirit Airlines
6.3
Okay
8,023 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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.

  • How long is the flight from Milwaukee to Costa Rica?

    Departing from Milwaukee to Costa Rica will take you 11h 51m. The distance from Milwaukee to Costa Rica is about 2286 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    $204 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $214 and $237, 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 $554). 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$279Average$472FlexibilityNo cancel feeOn-time65%
DeltaCheapest$385Average$677FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$417Average$683FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$475Average$782FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$478Average$663FlexibilityNo cancel feeOn-time71%

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