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San Juan

$108+ Cheap flights from Milwaukee (MKE) to San Juan

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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — SJU
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheapflights Tip: The best prices from Milwaukee-Mitchell to San Juan are usually found in September or October, booked 39 days in advance, depart on a Tuesday or Monday and return on a Thursday

Cheap flight deals from Milwaukee to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Milwaukee (MKE) to San Juan (PR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 17, 2025.

Round-trip from

$215
(American Airlines)

One-way from

$108
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$370
From Milwaukee-Mitchell to San Juan
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One-way flight from Milwaukee-Mitchell to San Juan
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Highest demand for flights based on searches. 9% potential increase in price ($47 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Milwaukee to San Juan

Cheapest flights from Milwaukee to San Juan
Explore the most affordable flight options available from Milwaukee to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This American Airlines deal was found by Cheapflights users on 4/16. 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.
Sun 9/74:41 pmMKE - SJU
2 stops17h 34mAmerican Airlines
Sat 9/133:55 pmSJU - MKE
1 stop8h 34mAmerican Airlines
Deal found 4/16$215
This Delta deal was found by Cheapflights users on 4/16. 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.
Sun 5/2510:00 amMKE - SJU
1 stop8h 48mDelta
Sat 5/316:15 amSJU - MKE
1 stop8h 39mDelta
Deal found 4/16$297
This CheapOair deal was found by Cheapflights users on 4/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/199:15 amMKE - SJU
1 stop12h 23mSpirit Airlines
Fri 6/61:59 amSJU - MKE
1 stop10h 28mSpirit Airlines
Deal found 4/16$298
This United Airlines deal was found by Cheapflights users on 4/17. 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.
Tue 9/167:00 amMKE - SJU
1 stop6h 44mUnited Airlines
Mon 9/221:05 amSJU - MKE
2 stops11h 25mUnited Airlines
Deal found 4/17$305
This Southwest deal was found by Cheapflights users on 4/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/175:25 amMKE - SJU
2 stops8h 40mSouthwest
Sat 5/247:05 amSJU - MKE
1 stop9h 40mSouthwest
Deal found 4/16$400
This Mytrip deal was found by Cheapflights users on 4/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/712:22 pmMKE - SJU
1 stop11h 32mMultiple Airlines
Wed 6/112:54 pmSJU - MKE
2 stops27h 23mMultiple Airlines
Deal found 4/16$408
This JetBlue deal was found by Cheapflights users on 4/16. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/13:50 pmMKE - SJU
1 stop8h 39mJetBlue
Wed 5/148:00 amSJU - MKE
1 stop8h 48mJetBlue
Deal found 4/16$433

Cheapflights Fare Finder

Customize your flight search to find flights from Milwaukee to San Juan 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 17, 2025.
Use the filters below to find and compare flights from Milwaukee to San Juan that are best for you.

Fly from

Milwaukee

Fly to

San Juan

Route

Depart

Return

Price

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sun 9/7

4:41 pm-11:15 am

2 stops17h 34m

San Juan Luis Munoz Marin Intl

Sat 9/13

3:55 pm-11:29 pm

1 stop8h 34m

$215

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sun 5/25

10:00 am-7:48 pm

1 stop8h 48m

San Juan Luis Munoz Marin Intl

Sat 5/31

6:15 am-1:54 pm

1 stop8h 39m

$297

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Mon 5/19

9:15 am-10:38 pm

1 stop12h 23m

San Juan Luis Munoz Marin Intl

Fri 6/6

1:59 am-11:27 am

1 stop10h 28m

$298

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Tue 9/16

7:00 am-2:44 pm

1 stop6h 44m

San Juan Luis Munoz Marin Intl

Mon 9/22

1:05 am-11:30 am

2 stops11h 25m

$305

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sat 5/17

5:25 am-3:05 pm

2 stops8h 40m

San Juan Luis Munoz Marin Intl

Sat 5/24

7:05 am-3:45 pm

1 stop9h 40m

$400

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sat 6/7

12:22 pm-12:54 am

1 stop11h 32m

San Juan Luis Munoz Marin Intl

Wed 6/11

2:54 pm-5:17 pm

2 stops27h 23m

$408

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Thu 5/1

3:50 pm-1:29 am

1 stop8h 39m

San Juan Luis Munoz Marin Intl

Wed 5/14

8:00 am-3:48 pm

1 stop8h 48m

$433

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Tue 9/16

5:06 am-2:45 pm

2 stops8h 39m

$108

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Wed 5/14

12:22 pm-12:54 am

1 stop11h 32m

$118

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Wed 5/7

1:10 pm-11:54 pm

1 stop9h 44m

$153

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 12 results
1
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Best time to book a flight from Milwaukee to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan 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 San Juan

How far ahead should I book a flight from Milwaukee to San Juan?

Use this chart to determine the optimal time to book a round-trip flight from Milwaukee to San Juan. Price data was last updated on April 11, 2025.

To ensure you get the cheapest price possible for a flight from Milwaukee to San Juan, you should look to book at least 39 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Milwaukee to San Juan?

Currently, September is the cheapest month in which you can book a flight from Milwaukee to San Juan (average of $254). Flying from Milwaukee to San Juan in December is currently the most expensive (average of $336). 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 SJU?

Find hourly flight availability from Milwaukee to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2025.

When flying from Milwaukee to San Juan, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 22% versus a flight at noon.

What is the cheapest day to fly from Milwaukee to San Juan?

Use this chart to determine the cheapest time to fly round-trip from Milwaukee to San Juan. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Milwaukee to San Juan flight should consider departing on Wednesday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in San Juan by month

Plan your trip to San Juan by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Juan ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit San Juan when rainfall is around 2.2 in.

Temperature in San Juan by month

Plan your trip to San Juan by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Juan, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

Reviews of airlines servicing San Juan

Get insights into the airlines that provide service to San Juan. 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 San Juan. Reviews last updated April 17, 2025.
Read through reviews of airlines operating flights from Milwaukee to San Juan, such as Alaska Airlines, Southwest and Delta. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Crew

8.5

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,882 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Crew

8.5

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,280 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Crew

8.5

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,917 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Crew

8.5

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,667 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Crew

8.5

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
JetBlue
7.3
Good
2,926 reviews
Alaska Airlines
8.0
Very good
9,882 reviews

Boarding

8.2

Crew

8.5

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

Find useful and relevant information for your journey from Milwaukee to San Juan. 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 San Juan?

    If you book a flight to San Juan from Milwaukee, you will be flying from Milwaukee-Mitchell, which is the city’s only airport. Milwaukee-Mitchell (MKE) is located 6.4 mi from the center of Milwaukee. There are 0 flights from Milwaukee-Mitchell to San Juan per day from 7 different airlines.

  • What are the cheapest airlines flying from Milwaukee to San Juan round-trip?

    Cheapflights users have booked flights from Milwaukee to San Juan round-trip from $215. Other airlines that can offer you cheap pricing are Delta, from $297, and Spirit Airlines, from $298. American Airlines is priced at 51% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Milwaukee to San Juan one-way?

    $108 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Spirit Airlines and United Airlines, with prices starting from $118 and $153, respectively.

  • Where are the most common layover locations when flying from Milwaukee to San Juan?

    Flights departing from Milwaukee and landing in San Juan layover in Atlanta most frequently.

  • What are some popular things to do or see while on a layover in Atlanta?

    Georgia Aquarium, Fox Theatre, and World of Coca-Cola are the most popular attractions in Atlanta if you're in need of something to do during your layover. Travelers on a layover in Atlanta can visit Georgia Aquarium, Fox Theatre, and World of Coca-Cola, by traveling 8.6 mi, 9.3 mi, and 8.6 mi, respectively after landing at Atlanta Hartsfield-Jackson. Travelers can book a car rental at Atlanta Hartsfield-Jackson for about $54 per day to make their sightseeing more efficient.

  • Where are the least popular layover locations for Milwaukee to San Juan flights?

    Milwaukee to San Juan flights that have layovers will least frequently stop in Charlotte.

  • Can I find deals for flights from Milwaukee to San Juan that include hotel bookings?

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

  • How can I find direct flights from Milwaukee to San Juan?

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

  • Can I find deals for business class flights from Milwaukee to San Juan?

    Yes. Cheapflights offers flight deals from Milwaukee to San Juan 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 San Juan?

    Currently, September is the cheapest month in which you can book a flight from Milwaukee to San Juan (average of $254). Flying from Milwaukee to San Juan in December is currently the most expensive (average of $336). 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.

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Alternative routes for Milwaukee to San Juan

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Top 7 airlines flying from Milwaukee to San Juan

Discover the top 7 airlines that operate flights from Milwaukee to San Juan. 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 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$129Average$245FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$204Average$388FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$248Average$463FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$258Average$458FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$265Average$481FlexibilityNo cancel feeOn-time71%
DeltaCheapest$291Average$397FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$375Average$621FlexibilityNo cancel feeOn-time63%

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