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$118+ Cheap flights from San Juan to Milwaukee (MKE)

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 1/30. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — MKE
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from San Juan to Milwaukee-Mitchell are usually found in September or February, booked 35 days in advance, depart on a Thursday or Saturday and return on a Tuesday

Cheap flight deals from San Juan to Milwaukee

Discover tips and strategies to find the most affordable flight options for your journey from San Juan (PR1) to Milwaukee (MKE). 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 October 30, 2025.

Round-trip from

$235
(Delta)

One-way from

$118
(United Airlines)

Popular in

July

Cheapest in

September

Average price

$342
From San Juan to Milwaukee-Mitchell
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One-way flight from San Juan to Milwaukee-Mitchell
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Highest demand for flights based on searches. 21% potential increase in price ($106 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from San Juan to Milwaukee

Cheapest flights from San Juan to Milwaukee
Explore the most affordable flight options available from San Juan to Milwaukee. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Delta deal was found by Cheapflights users on 10/29. 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.
Thu 12/46:38 pmSJU - MKE
1 stop7h 16mDelta
Wed 12/107:00 amMKE - SJU
1 stop8h 20mDelta
Deal found 10/29$300
This American Airlines deal was found by Cheapflights users on 10/30. 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.
Thu 12/43:58 pmSJU - MKE
1 stop18h 19mAmerican Airlines
Wed 12/105:00 amMKE - SJU
2 stops15h 09mAmerican Airlines
Deal found 10/30$308
This Frontier deal was found by Cheapflights users on 10/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/219:54 pmSJU - MKE
2 stops23h 15mFrontier
Sun 11/237:43 pmMKE - SJU
1 stop13h 55mFrontier
Deal found 10/29$313
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Wed 12/32:05 amSJU - MKE
1 stop10h 39mUnited Airlines
Wed 12/108:40 amMKE - SJU
2 stops11h 42mUnited Airlines
Deal found 10/29$325
This Mytrip deal was found by Cheapflights users on 10/29. 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.
Thu 12/2511:38 amSJU - MKE
1 stop9h 42mSpirit Airlines
Tue 1/68:15 pmMKE - SJU
1 stop12h 18mSpirit Airlines
Deal found 10/29$343
This Priceline deal was found by Cheapflights users on 10/30. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/223:55 amSJU - MKE
1 stop16h 31mMultiple Airlines
Sun 1/48:15 pmMKE - SJU
1 stop12h 18mMultiple Airlines
Deal found 10/30$350
This American Airlines deal was found by Cheapflights users on 10/30. 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.
Tue 12/2310:25 amSJU - MKE
2 stops9h 24mAmerican Airlines
Sun 1/46:27 pmMKE - SJU
1 stop15h 12mAmerican Airlines
Deal found 10/30$360
This CheapOair deal was found by Cheapflights users on 10/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2911:38 amSJU - MKE
1 stop9h 42mSpirit Airlines
Mon 1/58:15 pmMKE - SJU
1 stop16h 05mSpirit Airlines
Deal found 10/30$365
This American Airlines deal was found by Cheapflights users on 10/30. 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.
Thu 12/254:38 pmSJU - MKE
2 stops19h 09mAmerican Airlines
Sun 1/48:08 pmMKE - SJU
2 stops11h 27mAmerican Airlines
Deal found 10/30$381
This Mytrip deal was found by Cheapflights users on 10/28. 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.
Thu 12/2511:38 amSJU - MKE
1 stop11h 48mMultiple Airlines
Tue 1/68:15 pmMKE - SJU
1 stop12h 18mMultiple Airlines
Deal found 10/28$385

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Juan to Milwaukee 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 October 30, 2025.
Use the filters below to find and compare flights from San Juan to Milwaukee that are best for you.

Fly from

San Juan

Fly to

Milwaukee

Route

Depart

Return

Price

San JuanMilwaukee

SJU - MKE

SJUMKE

San Juan Luis Munoz Marin Intl

Thu 2/19

11:05 am-6:45 pm

1 stop9h 40m

Milwaukee-Mitchell

Mon 2/23

7:40 pm-9:55 am

1 stop12h 15m

$281

San JuanMilwaukee

SJU - MKE

SJUMKE

San Juan Luis Munoz Marin Intl

Thu 12/4

6:00 am-3:07 pm

2 stops11h 07m

Milwaukee-Mitchell

Wed 12/10

6:01 am-10:09 pm

2 stops14h 08m

$308

San JuanMilwaukee

SJU - MKE

SJUMKE

San Juan Luis Munoz Marin Intl

Thu 12/25

10:26 am-11:59 pm

1 stop15h 33m

Milwaukee-Mitchell

Sun 1/4

6:27 pm-11:39 am

1 stop15h 12m

$308

San JuanMilwaukee

SJU - MKE

SJUMKE

San Juan Luis Munoz Marin Intl

Fri 11/21

9:54 pm-7:09 pm

2 stops23h 15m

Milwaukee-Mitchell

Sun 11/23

7:43 pm-11:38 am

1 stop13h 55m

$313

San JuanMilwaukee

SJU - MKE

SJUMKE

San Juan Luis Munoz Marin Intl

Thu 1/29

8:20 am-6:26 pm

2 stops12h 06m

Milwaukee-Mitchell

Mon 2/2

6:00 am-5:03 pm

2 stops9h 03m

$314

San JuanMilwaukee

SJU - MKE

SJUMKE

San Juan Luis Munoz Marin Intl

Wed 12/3

2:05 am-10:44 am

1 stop10h 39m

Milwaukee-Mitchell

Wed 12/10

8:40 am-10:22 pm

2 stops11h 42m

$325

San JuanMilwaukee

SJU - MKE

SJUMKE

San Juan Luis Munoz Marin Intl

Wed 12/31

11:38 am-7:20 pm

1 stop9h 42m

Milwaukee-Mitchell

Mon 1/5

8:15 pm-10:33 am

1 stop12h 18m

$362

San JuanMilwaukee

SJU - MKE

SJUMKE

San Juan Luis Munoz Marin Intl

Wed 1/28

2:05 am-12:09 pm

2 stops12h 04m

Milwaukee-Mitchell

Mon 2/2

10:30 am-10:22 pm

2 stops9h 52m

$364

San JuanMilwaukee

SJU - MKE

SJUMKE

San Juan Luis Munoz Marin Intl

Fri 1/30

6:27 pm-11:46 pm

1 stop7h 19m

$118

San JuanMilwaukee

SJU - MKE

SJUMKE

San Juan Luis Munoz Marin Intl

Wed 11/19

2:05 am-1:58 pm

2 stops13h 53m

$118

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 18 results
1
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Best time to book a flight from San Juan to Milwaukee

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

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

Use this chart to determine the optimal time to book a round-trip flight from San Juan to Milwaukee. Price data was last updated on October 24, 2025.

Booking 35 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Juan to Milwaukee. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, September is the cheapest month in which you can book a flight from San Juan to Milwaukee (average of $113). Flying from San Juan to Milwaukee in June is currently the most expensive (average of $184). 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 SJU to MKE?

Find hourly flight availability from San Juan to Milwaukee. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

One of the essential ways to save on airfare from San Juan to Milwaukee is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 5% on airfare.

Reviews of airlines servicing Milwaukee

Get insights into the airlines that provide service to Milwaukee. 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 Milwaukee. Reviews last updated October 30, 2025.
Read through reviews of airlines operating flights from San Juan to Milwaukee, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,243 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

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
4,243 reviews
Southwest
8.0
Very good
4,243 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

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
7.9
Good
7,998 reviews
Southwest
8.0
Very good
4,243 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

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
8,998 reviews
Southwest
8.0
Very good
4,243 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

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
11,035 reviews
Southwest
8.0
Very good
4,243 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

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 San Juan to Milwaukee. 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 into for flights to Milwaukee from San Juan?

    If you book a flight to Milwaukee from San Juan, you will be flying to 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 San Juan to Milwaukee-Mitchell per day from 4 different airlines.

  • How long is the flight from San Juan to Milwaukee?

    For as low as $281, Frontier can have you in Milwaukee from San Juan in 9h 40m. The distance between San Juan and Milwaukee is about 2120 mi. This flight may include one or multiple stops.

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

    Currently priced at $215, Delta will fly you from San Juan to Milwaukee and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and American Airlines - these airlines can fly you to your destination from $215 and $235, respectively. Users have found that Delta is 44% cheaper than the other options available to this destination.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from San Juan to Milwaukee (average of $113). Flying from San Juan to Milwaukee in June is currently the most expensive (average of $184). 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

Traveling to a place near Milwaukee?

Book flights to Milwaukee if you plan to visit one of these locations
Sheboygan
New Berlin
Oak Creek
Wauwatosa

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Top 4 airlines flying from San Juan to Milwaukee

Discover the top 4 airlines that operate flights from San Juan to Milwaukee. 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$215Average$399FlexibilityNo cancel feeOn-time69%
DeltaCheapest$215Average$390FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$235Average$399FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$305Average$485FlexibilityNo cancel feeOn-time63%

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