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Cheap flights from Milwaukee to Puerto Rico from $90

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Milwaukee to Puerto Rico departing on 2/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Milwaukee to Puerto Rico

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
11:07 am - 11:45 pm
MKE
-
SJU
10h 38m1 stop
Delta Logo
6:27 pm - 11:46 pm
SJU
-
MKE
7h 19m1 stop
$235Delta
Sat, Jan 24 - Fri, Jan 30
Frontier Logo
7:56 pm - 11:26 pm
MKE
-
SJU
25h 30m1 stop
Frontier Logo
4:36 pm - 6:16 pm
SJU
-
MKE
27h 40m1 stop
$236Frontier
Fri, Jan 9 - Wed, Jan 21
Delta Logo
12:20 pm - 11:58 pm
MKE
-
SJU
9h 38m1 stop
Delta Logo
2:16 pm - 8:36 pm
SJU
-
MKE
8h 20m1 stop
$245Delta
Mon, Feb 16 - Tue, Feb 24
Frontier Logo
7:59 pm - 8:54 am
MKE
-
SJU
10h 55m1 stop
Frontier Logo
10:35 am - 6:52 pm
SJU
-
MKE
10h 17m1 stop
$249Frontier
Sat, Jan 10 - Fri, Jan 16
Frontier Logo
7:48 pm - 9:54 am
MKE
-
SJU
12h 06m1 stop
Frontier Logo
8:00 am - 6:06 pm
SJU
-
MKE
12h 06m1 stop
$251Frontier
Sat, Jan 31 - Mon, Feb 9
Frontier Logo
6:56 pm - 3:26 pm
MKE
-
SJU
18h 30m1 stop
Frontier Logo
8:00 am - 6:06 pm
SJU
-
MKE
12h 06m1 stop
$252Frontier
Wed, Jan 28 - Mon, Feb 2
United Airlines Logo
7:55 am - 9:26 pm
MKE
-
SJU
11h 31m1 stop
United Airlines Logo
2:05 am - 10:15 am
SJU
-
MKE
10h 10m1 stop
$253United Airlines
Wed, Feb 4 - Fri, Feb 6
United Airlines Logo
5:00 am - 3:40 pm
MKE
-
SJU
8h 40m1 stop
United Airlines Logo
2:05 am - 10:58 am
SJU
-
MKE
10h 53m1 stop
$257United Airlines
Mon, Feb 23 - Fri, Feb 27
American Airlines Logo
6:00 am - 8:50 pm
MKE
-
SJU
12h 50m2 stops
American Airlines Logo
6:00 am - 3:57 pm
SJU
-
MKE
11h 57m2 stops
$260American Airlines
Sun, Jan 18 - Wed, Jan 21
Frontier Logo
7:59 pm - 2:50 am
MKE
-
SJU
28h 51m1 stop
Frontier Logo
6:00 am - 6:47 pm
SJU
-
MKE
14h 47m1 stop
$265Frontier
Sat, Jan 10 - Sun, Jan 18

Delta flights from Milwaukee to Puerto Rico

Our best Delta deals on Milwaukee to Puerto Rico flight tickets
Delta
Jan 24
MKE11:07 amMilwaukee-Mitchell
10h 38m
1 stop
SJU11:45 pmSan Juan Luis Munoz Marin Intl
Jan 30
SJU6:27 pmSan Juan Luis Munoz Marin Intl
7h 19m
1 stop
MKE11:46 pmMilwaukee-Mitchell
$235
Find similar
Delta
Feb 16
MKE12:20 pmMilwaukee-Mitchell
9h 38m
1 stop
SJU11:58 pmSan Juan Luis Munoz Marin Intl
Feb 18
SJU6:15 amSan Juan Luis Munoz Marin Intl
8h 16m
1 stop
MKE12:31 pmMilwaukee-Mitchell
$245
Find similar
Delta
Jan 28
MKE5:30 amMilwaukee-Mitchell
9h 47m
1 stop
SJU5:17 pmSan Juan Luis Munoz Marin Intl
Feb 5
SJU6:27 pmSan Juan Luis Munoz Marin Intl
7h 17m
1 stop
MKE11:44 pmMilwaukee-Mitchell
$306
Find similar

American Airlines flights from Milwaukee to Puerto Rico

Our best American Airlines deals on Milwaukee to Puerto Rico flight tickets
American Airlines
Jan 18
MKE8:30 amMilwaukee-Mitchell
11h 24m
1 stop
SJU9:54 pmSan Juan Luis Munoz Marin Intl
Jan 21
SJU6:00 amSan Juan Luis Munoz Marin Intl
14h 26m
1 stop
MKE6:26 pmMilwaukee-Mitchell
$260
Find similar
American Airlines
Jan 8
MKE6:00 amMilwaukee-Mitchell
8h 33m
1 stop
SJU4:33 pmSan Juan Luis Munoz Marin Intl
Jan 15
SJU1:58 pmSan Juan Luis Munoz Marin Intl
11h 37m
1 stop
MKE11:35 pmMilwaukee-Mitchell
$308
Find similar
American Airlines
Feb 19
MKE11:17 amMilwaukee-Mitchell
8h 16m
1 stop
SJU9:33 pmSan Juan Luis Munoz Marin Intl
Feb 25
SJU2:26 pmSan Juan Luis Munoz Marin Intl
11h 16m
2 stops
MKE11:42 pmMilwaukee-Mitchell
$360
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Milwaukee to Puerto Rico 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, momondo users made 832,500 searches. Data last updated December 11, 2025.
Use the filters below to find and compare flights from Milwaukee to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sat 1/24

11:07 am-11:45 pm

1 stop10h 38m

San Juan Luis Munoz Marin Intl

Fri 1/30

6:27 pm-11:46 pm

1 stop7h 19m

$235

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Fri 1/9

7:56 pm-11:26 pm

1 stop25h 30m

San Juan Luis Munoz Marin Intl

Wed 1/21

4:36 pm-6:16 pm

1 stop27h 40m

$236

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Mon 2/16

12:20 pm-11:58 pm

1 stop9h 38m

San Juan Luis Munoz Marin Intl

Tue 2/24

2:16 pm-8:36 pm

1 stop8h 20m

$245

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sat 1/10

7:59 pm-8:54 am

1 stop10h 55m

San Juan Luis Munoz Marin Intl

Fri 1/16

10:35 am-6:52 pm

1 stop10h 17m

$249

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sat 1/31

7:48 pm-9:54 am

1 stop12h 06m

San Juan Luis Munoz Marin Intl

Mon 2/9

8:00 am-6:06 pm

1 stop12h 06m

$251

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Wed 1/28

6:56 pm-3:26 pm

1 stop18h 30m

San Juan Luis Munoz Marin Intl

Mon 2/2

8:00 am-6:06 pm

1 stop12h 06m

$252

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Wed 2/4

7:55 am-9:26 pm

1 stop11h 31m

San Juan Luis Munoz Marin Intl

Fri 2/6

2:05 am-10:15 am

1 stop10h 10m

$253

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Mon 2/23

5:00 am-3:40 pm

1 stop8h 40m

San Juan Luis Munoz Marin Intl

Fri 2/27

2:05 am-10:58 am

1 stop10h 53m

$257

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sun 1/18

6:00 am-8:50 pm

2 stops12h 50m

San Juan Luis Munoz Marin Intl

Wed 1/21

6:00 am-3:57 pm

2 stops11h 57m

$260

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sat 1/10

7:59 pm-2:50 am

1 stop28h 51m

San Juan Luis Munoz Marin Intl

Sun 1/18

6:00 am-6:47 pm

1 stop14h 47m

$265

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Puerto Rico from

How to get the cheapest flight ticket from Milwaukee to Puerto Rico

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Puerto Rico?

If you don’t want to visit Puerto Rico in September, then you should wait until October to fly from Milwaukee, when ticket prices are also cheap, with an average price of $350.

What is the cheapest day to depart on your flight to Puerto Rico?

On average, the least expensive day to fly to Puerto Rico from Milwaukee is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $389. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Puerto Rico is Friday, with ticket prices averaging around $477.

What is the cheapest time of day to depart on your flight to Puerto Rico?

Our most recent data shows that the best time of day to fly to Puerto Rico is in the evening. Flights from Milwaukee to Puerto Rico during this time can be as low as $360. In contrast, the most expensive time of day to depart to Puerto Rico is at noon when prices are around $458.

How far in advance should I book a flight to Puerto Rico?

You are more likely to see cheaper flights to Puerto Rico from Milwaukee when booking weeks ahead of your departure date. In general, you can expect to find flights to Puerto Rico for around $435 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Puerto Rico from Milwaukee for as low as $343 on momondo.

Can stopping save me money on Milwaukee to Puerto Rico flights?

You could potentially save up to 75% on your flight if you consider stops on a Milwaukee to Puerto Rico flight.

Cheap Milwaukee to Puerto Rico flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Milwaukee to Puerto Rico

Fastest flight time

6h 05m

Direct flights

None
The fastest flight from Milwaukee to Puerto Rico takes 6h 05m
There are no direct flights from Milwaukee to Puerto Rico. There are no popular flight routes from Milwaukee to Puerto Rico.
Search flight deals

  • When did momondo last update prices for flights from Milwaukee-Mitchell Airport to Puerto Rico?

    Prices for flights from Milwaukee-Mitchell Airport to Puerto Rico are updated daily.

  • How many operators does momondo search for flights from Milwaukee-Mitchell Airport to Puerto Rico?

  • How old do you have to be to fly from Milwaukee-Mitchell Airport to Puerto Rico?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Milwaukee-Mitchell Airport to Puerto Rico.

  • What documentation or ID do you need to fly to Puerto Rico?

    The necessary travel and health documents for your Puerto Rico trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Milwaukee to Puerto Rico

Compare and see reviews for airlines that fly from Milwaukee to Puerto Rico with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $129Free CancellationRating
5.8
3,084 reviews
Search Frontier flights
DeltaPriceFrom $203Free CancellationRating
7.9
8,007 reviews
Search Delta flights
United AirlinesPriceFrom $215Free CancellationRating
7.4
9,094 reviews
Search United Airlines flights
Spirit AirlinesPriceFrom $226Free CancellationRating
6.3
8,180 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $274Free CancellationRating
7.2
11,049 reviews
Search American Airlines flights
SouthwestPriceFrom $315Free CancellationRating
7.9
4,253 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Milwaukee to Puerto Rico?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Milwaukee to Puerto Rico for you.

Can I find flights from Milwaukee to Puerto Rico with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Milwaukee to Puerto Rico flights to just show those with flexible booking policies.

How can momondo help me find flights from Milwaukee to Puerto Rico?

Once all potential Milwaukee to Puerto Rico flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Milwaukee to Puerto Rico right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Milwaukee to Puerto Rico flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Puerto Rico trip

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Find better results for your trip to Puerto Rico

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