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$80+ 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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — SJU
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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The best prices from Milwaukee-Mitchell to San Juan are usually found in September or October, booked 52 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 January 21, 2025.

Round-trip from

$220
(CheapOair)

One-way from

$80
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$379
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 ($46 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in January 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 January 21, 2025.

This CheapOair deal was found by Cheapflights users on 1/20. 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.
Tue 3/42:14 pmMKE - SJU
1 stop17h 35mFrontier
Tue 3/119:35 pmSJU - MKE
1 stop15h 44mFrontier
Deal found 1/20$220
This CheapOair deal was found by Cheapflights users on 1/20. 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 3/36:47 pmMKE - SJU
2 stops42h 20mMultiple Airlines
Mon 3/107:37 pmSJU - MKE
1 stop17h 42mMultiple Airlines
Deal found 1/20$222
This Mytrip deal was found by Cheapflights users on 1/20. 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 2/25:28 pmMKE - SJU
1 stop13h 53mSpirit Airlines
Wed 2/54:53 pmSJU - MKE
2 stops25h 30mSpirit Airlines
Deal found 1/20$233
This United Airlines deal was found by Cheapflights users on 1/20. 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 5/311:25 amMKE - SJU
2 stops11h 32mUnited Airlines
Sat 5/101:25 pmSJU - MKE
2 stops9h 50mUnited Airlines
Deal found 1/20$275
This American Airlines deal was found by Cheapflights users on 1/20. 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 2/166:19 pmMKE - SJU
1 stop15h 30mAmerican Airlines
Thu 2/202:40 pmSJU - MKE
1 stop10h 00mAmerican Airlines
Deal found 1/20$300
This Delta deal was found by Cheapflights users on 1/20. 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 2/223:00 pmMKE - SJU
1 stop6h 46mDelta
Tue 3/46:15 amSJU - MKE
1 stop7h 15mDelta
Deal found 1/20$325
This Southwest deal was found by Cheapflights users on 1/20. 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 2/2211:35 amMKE - SJU
1 stop9h 45mSouthwest
Sat 3/16:15 pmSJU - MKE
1 stop7h 10mSouthwest
Deal found 1/20$404
This JetBlue deal was found by Cheapflights users on 1/20. 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.
Mon 6/93:50 pmMKE - SJU
1 stop8h 30mJetBlue
Thu 6/127:20 amSJU - MKE
1 stop8h 11mJetBlue
Deal found 1/20$442

Find flights from Milwaukee to San Juan within your budget

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Tue 3/4

2:14 pm-9:49 am

1 stop17h 35m

San Juan Luis Munoz Marin Intl

Tue 3/11

9:35 pm-12:19 pm

1 stop15h 44m

$220

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Mon 3/3

6:47 pm-3:07 pm

2 stops42h 20m

San Juan Luis Munoz Marin Intl

Mon 3/10

7:37 pm-12:19 pm

1 stop17h 42m

$222

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sun 2/2

5:28 pm-9:21 am

1 stop13h 53m

San Juan Luis Munoz Marin Intl

Wed 2/5

4:53 pm-4:23 pm

2 stops25h 30m

$233

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sat 5/3

11:25 am-11:57 pm

2 stops11h 32m

San Juan Luis Munoz Marin Intl

Sat 5/10

7:45 am-3:10 pm

1 stop8h 25m

$275

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sun 2/16

6:19 pm-11:49 am

1 stop15h 30m

San Juan Luis Munoz Marin Intl

Thu 2/20

8:15 am-6:29 pm

2 stops12h 14m

$300

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sat 2/22

3:00 pm-11:46 pm

1 stop6h 46m

San Juan Luis Munoz Marin Intl

Wed 3/5

6:15 am-11:30 am

1 stop7h 15m

$325

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sat 2/22

11:35 am-11:20 pm

1 stop9h 45m

San Juan Luis Munoz Marin Intl

Sat 3/1

6:15 pm-11:25 pm

1 stop7h 10m

$404

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Mon 6/9

3:50 pm-1:20 am

1 stop8h 30m

San Juan Luis Munoz Marin Intl

Thu 6/12

7:20 am-2:31 pm

1 stop8h 11m

$442

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Mon 1/27

5:28 pm-9:21 am

1 stop13h 53m

$83

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Mon 2/24

2:14 pm-2:54 am

1 stop10h 40m

$85

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 17 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.

Travel insights for flights from Milwaukee to San Juan

Get recent, data-driven insights about flights from Milwaukee to San Juan including ideal travel times, pricing trends, and more.

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 January 17, 2025.

To ensure you get the cheapest price possible for a flight from Milwaukee to San Juan, you should look to book at least 52 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 March is currently the most expensive (average of $378). 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 January 21, 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 January 21, 2025.
Read through reviews of airlines operating flights from Milwaukee to San Juan, such as Frontier, United Airlines and American Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,706 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

JetBlue
7.4
Good
3,201 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,985 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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 $220. Other airlines that can offer you cheap pricing are Spirit Airlines, from $233, and United Airlines, from $275. Frontier is priced at 50% 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?

    $80 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 Frontier and American Airlines, with prices starting from $84 and $138, 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. Milwaukee to San Juan flights stop in Orlando the next most.

  • 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 $43 per day to make their sightseeing more efficient.

  • What are some popular points of interest to see during a layover in Orlando?

    Walt Disney World Resort, Universal Orlando Resort, and International Drive are the most popular attractions in Orlando if you're in need of something to do during your layover. Walt Disney World Resort, Universal Orlando Resort, and International Drive can be visited by traveling about 16.2 mi, 10.3 mi, and 9.9 mi respectively from Orlando. Travelers can book a car rental at Orlando for about $31 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 March is currently the most expensive (average of $378). 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$138Average$275FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$167Average$310FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$261Average$449FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$274Average$473FlexibilityNo cancel feeOn-time69%
DeltaCheapest$324Average$416FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$360Average$462FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$379Average$608FlexibilityNo cancel feeOn-time63%
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