In terms of precipitation, rainfall in San Juan Luis Munoz Marin Intl Airport ranges from 55.0 - 156.0 inches per month. November is typically the wettest month, when rainfall can reach 156.0 mm. March is typically the driest time to visit San Juan Luis Munoz Marin Intl Airport when rainfall is around 55.0 mm.

If weather is an important factor for your trip to San Juan Luis Munoz Marin Intl Airport, 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 28.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 25.0 C).

What is the cheapest time of day to fly from MKE to SJU?

When flying from Milwaukee to San Juan Luis Munoz Marin Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly from for flights from Milwaukee to San Juan Luis Munoz Marin Intl?

Most people fly from Milwaukee-Mitchell (MKE) if they book a flight from Milwaukee to San Juan Luis Munoz Marin Intl. On average, Milwaukee-Mitchell has 0 outbound flights to San Juan Luis Munoz Marin Intl per day from 0 airlines. Milwaukee-Mitchell is conveniently located just 6.4 mi from Milwaukee’s city center.

Can I find deals for flights from Milwaukee to Luis Munoz Marin Intl that include hotel bookings?

Yes. In addition to deals on Milwaukee to Luis Munoz Marin Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Milwaukee to Luis Munoz Marin Intl?

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

Can I find deals for business class flights from Milwaukee to Luis Munoz Marin Intl?

Yes. Cheapflights offers flight deals from Milwaukee to Luis Munoz Marin Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£135+ Cheap Flights from Milwaukee to San Juan Luis Munoz Marin Intl Airport

Cheap flight deals from Milwaukee to Luis Munoz Marin Intl

Enter your travel dates to find the best prices.

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Best

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One-way

Cheapest flights from Milwaukee to Luis Munoz Marin Intl
Explore the most affordable flight options available from Milwaukee to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 September 2026.

Sat 3/1005:00 -

1 stop8h 44m

Sat 3/1001:00 -

2 stops11h 30m

Deal found 4/9£267

Wed 14/1007:45 -

2 stops11h 50m

Mon 19/1022:50 -

1 stop11h 05m

Deal found 3/9£271

Tue 1/1205:00 -

1 stop8h 40m

Fri 4/1202:05 -

2 stops11h 23m

Deal found 2/9£281

Mon 9/1112:42 -

1 stop8h 33m

Wed 11/1115:15 -

1 stop7h 00m

Deal found 3/9£285

Fri 25/919:00 -

1 stop13h 25m

Mon 5/1017:35 -

1 stop7h 15m

Deal found 2/9£292

Mon 2/1112:45 -

1 stop10h 20m

Mon 9/1106:35 -

1 stop7h 30m

Deal found 2/9£299

Fri 4/1219:20 -

1 stop12h 40m

Mon 7/1207:40 -

2 stops10h 20m

Deal found 5/9£311

Wed 2/1209:15 -

2 stops11h 07m

Sat 5/1202:05 -

1 stop9h 41m

Deal found 2/9£312

Fri 25/919:00 -

1 stop13h 25m

Mon 28/905:30 -

1 stop7h 25m

Deal found 1/9£313

Mon 21/912:30 -

2 stops9h 40m

Sun 27/921:25 -

1 stop12h 30m

Deal found 1/9£318

Thu 10/1209:15 -

1 stop9h 45m

Sat 12/1202:05 -

2 stops11h 23m

Deal found 2/9£319

Find flight deals from Milwaukee to Luis Munoz Marin Intl

Round-trip from	£267
One-way from	£135
Popular in	December
Cheapest in	September
Average price	£256

United Airlines
3/10-3/10
3 total stops
20h 14m total
Milwaukee to San Juan

Search Deals

Southwest
30/9-31/12
1 total stop
13h 15m total
Milwaukee to San Juan

Search Deals

Highest demand for flights based on searches. 16% potential increase in price (£48 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease (£16 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Milwaukee to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

MilwaukeeSan Juan

MKE Milwaukee-Mitchell - SJU San Juan Luis Munoz Marin Intl

MKESJU

Milwaukee-Mitchell

Sat 3/10

12:45-22:19

1 stop8h 34m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

£135

MilwaukeeSan Juan

MKE Milwaukee-Mitchell - SJU San Juan Luis Munoz Marin Intl

MKESJU

Milwaukee-Mitchell

Mon 9/11

19:50-09:55

1 stop12h 05m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

£135

MilwaukeeSan Juan

MKE Milwaukee-Mitchell - SJU San Juan Luis Munoz Marin Intl

MKESJU

Milwaukee-Mitchell

Mon 5/10

05:30-16:49

1 stop10h 19m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

£135

Fastest return journey

MilwaukeeSan Juan

MKE Milwaukee-Mitchell - SJU San Juan Luis Munoz Marin Intl

MKESJU

Milwaukee-Mitchell

Wed 14/10

14:30-23:10

1 stop7h 40m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

£135

MilwaukeeSan Juan

MKE Milwaukee-Mitchell - SJU San Juan Luis Munoz Marin Intl

MKESJU

Milwaukee-Mitchell

Sat 12/12

05:10-17:38

1 stop10h 28m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

£143

MilwaukeeSan Juan

MKE Milwaukee-Mitchell - SJU San Juan Luis Munoz Marin Intl

MKESJU

Milwaukee-Mitchell

Sat 9/1

15:42-06:15

2 stops12h 33m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

£149

MilwaukeeSan Juan

MKE Milwaukee-Mitchell - SJU San Juan Luis Munoz Marin Intl

MKESJU

Milwaukee-Mitchell

Fri 2/10

12:20-00:05

1 stop10h 45m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

£157

MilwaukeeSan Juan

MKE Milwaukee-Mitchell - SJU San Juan Luis Munoz Marin Intl

MKESJU

Milwaukee-Mitchell

Thu 31/12

14:31-06:15

2 stops13h 44m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

£170

MilwaukeeSan Juan

MKE Milwaukee-Mitchell - SJU San Juan Luis Munoz Marin Intl

MKESJU

Milwaukee-Mitchell

Fri 5/2

07:00-22:40

1 stop13h 40m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

£183

MilwaukeeSan Juan

MKE Milwaukee-Mitchell - SJU San Juan Luis Munoz Marin Intl

MKESJU

Milwaukee-Mitchell

Fri 11/12

12:45-00:55

2 stops10h 10m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

£194

Flights are sorted by cheapest return flights first.

Deals found on 4/9

Showing 1-10 of 23 resultsSorted by cheapest first

Best time to book a flight from Milwaukee to Luis Munoz Marin Intl

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl from Milwaukee with our price prediction graph.

MKE-SJU

Estimated return 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 Luis Munoz Marin Intl Airport

How far ahead should I book a flight from Milwaukee to San Juan Luis Munoz Marin Intl Airport?

The best time to book flights from Milwaukee to San Juan Luis Munoz Marin Intl Airport is 52 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Milwaukee to San Juan Luis Munoz Marin Intl Airport?

Currently, September is the cheapest month in which you can book a flight from Milwaukee to San Juan Luis Munoz Marin Intl Airport (average of £256). Flying from Milwaukee to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of £572). 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.

How much does it cost for a return flight from Milwaukee to San Juan Luis Munoz Marin Intl Airport?

Airfare is typical for this route at the moment.

Milwaukee to San Juan Luis Munoz Marin Intl Airport flights typically cost between £231 and £295 in October.
The cheapest return price found within the last 5 days was £267 on United Airlines (3 Oct–3 Oct).

Related info for your journey

What airport do you fly from for flights from Milwaukee to San Juan Luis Munoz Marin Intl?
Most people fly from Milwaukee-Mitchell (MKE) if they book a flight from Milwaukee to San Juan Luis Munoz Marin Intl. On average, Milwaukee-Mitchell has 0 outbound flights to San Juan Luis Munoz Marin Intl per day from 0 airlines. Milwaukee-Mitchell is conveniently located just 6.4 mi from Milwaukee’s city center.
How long is the flight from Milwaukee to San Juan Luis Munoz Marin Intl Airport?
For as low as £281, Southwest can have you in San Juan Luis Munoz Marin Intl Airport from Milwaukee in 9h 45m. The distance between Milwaukee and San Juan Luis Munoz Marin Intl Airport is about 2120 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
Can I find deals for flights from Milwaukee to Luis Munoz Marin Intl that include hotel bookings?
Yes. In addition to deals on Milwaukee to Luis Munoz Marin Intl flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Milwaukee to Luis Munoz Marin Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Milwaukee to Luis Munoz Marin Intl.
Can I find deals for business class flights from Milwaukee to Luis Munoz Marin Intl?
Yes. Cheapflights offers flight deals from Milwaukee to Luis Munoz Marin Intl 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 Luis Munoz Marin Intl Airport?
Currently, September is the cheapest month in which you can book a flight from Milwaukee to San Juan Luis Munoz Marin Intl Airport (average of £256). Flying from Milwaukee to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of £572). 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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Deals for Milwaukee to Luis Munoz Marin Intl flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Milwaukee to Luis Munoz Marin Intl?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Milwaukee to Luis Munoz Marin Intl.

Can Cheapflights find flights from Milwaukee to Luis Munoz Marin Intl with no change fees?

Yes! Cheapflights helps users easily find flights from Milwaukee to Luis Munoz Marin Intl with no change fees.

Can Cheapflights notify me if prices for flights from Milwaukee to Luis Munoz Marin Intl become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Luis Munoz Marin Intl from Milwaukee today and book when prices fit your budget.

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Cheap flights from Milwaukee to San Juan Luis Munoz Marin Intl Airport from £135

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Milwaukee to Luis Munoz Marin Intl

Cheapest flights from Milwaukee to Luis Munoz Marin IntlExplore the most affordable flight options available from Milwaukee to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 September 2026.

Explore the most affordable flight options available from Milwaukee to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 September 2026.

Best flights from Milwaukee to Luis Munoz Marin IntlDiscover carefully curated flight deals from Milwaukee to Luis Munoz Marin Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 September 2026.

Discover carefully curated flight deals from Milwaukee to Luis Munoz Marin Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 September 2026.

Last-minute flights from Milwaukee to Luis Munoz Marin IntlDiscover last-minute flight deals from Milwaukee to Luis Munoz Marin Intl. Data last updated 5 September 2026 and is based on user searches.

Discover last-minute flight deals from Milwaukee to Luis Munoz Marin Intl. Data last updated 5 September 2026 and is based on user searches.

One-way flights from Milwaukee to Luis Munoz Marin IntlSearch for one-way flight options from Milwaukee to Luis Munoz Marin Intl. Find affordable one-way fares based on user searches. Data last updated 5 September 2026.

Search for one-way flight options from Milwaukee to Luis Munoz Marin Intl. Find affordable one-way fares based on user searches. Data last updated 5 September 2026.

Find flight deals from Milwaukee to Luis Munoz Marin Intl

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Use the filters below to find and compare flights from Milwaukee to San Juan Luis Munoz Marin Intl Airport that are best for you.

Best time to book a flight from Milwaukee to Luis Munoz Marin Intl

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl from Milwaukee with our price prediction graph.

Cheapflights Insights

How far ahead should I book a flight from Milwaukee to San Juan Luis Munoz Marin Intl Airport?

The best time to book flights from Milwaukee to San Juan Luis Munoz Marin Intl Airport is 52 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Milwaukee to San Juan Luis Munoz Marin Intl Airport?

How much does it cost for a return flight from Milwaukee to San Juan Luis Munoz Marin Intl Airport?

Airfare is typical for this route at the moment.

Milwaukee to San Juan Luis Munoz Marin Intl Airport flights typically cost between £231 and £295 in October.The cheapest return price found within the last 5 days was £267 on United Airlines (3 Oct–3 Oct).

Related info for your journey

What airport do you fly from for flights from Milwaukee to San Juan Luis Munoz Marin Intl?

How long is the flight from Milwaukee to San Juan Luis Munoz Marin Intl Airport?

Can I find deals for flights from Milwaukee to Luis Munoz Marin Intl that include hotel bookings?

How can I find direct flights from Milwaukee to Luis Munoz Marin Intl?

Can I find deals for business class flights from Milwaukee to Luis Munoz Marin Intl?

What is the cheapest month to book a flight from Milwaukee to San Juan Luis Munoz Marin Intl Airport?

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Cheapest flights from Milwaukee to Luis Munoz Marin Intl
Explore the most affordable flight options available from Milwaukee to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 September 2026.

Best flights from Milwaukee to Luis Munoz Marin Intl
Discover carefully curated flight deals from Milwaukee to Luis Munoz Marin Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 September 2026.

Last-minute flights from Milwaukee to Luis Munoz Marin Intl
Discover last-minute flight deals from Milwaukee to Luis Munoz Marin Intl. Data last updated 5 September 2026 and is based on user searches.

One-way flights from Milwaukee to Luis Munoz Marin Intl
Search for one-way flight options from Milwaukee to Luis Munoz Marin Intl. Find affordable one-way fares based on user searches. Data last updated 5 September 2026.

Milwaukee to San Juan Luis Munoz Marin Intl Airport flights typically cost between £231 and £295 in October.
The cheapest return price found within the last 5 days was £267 on United Airlines (3 Oct–3 Oct).