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Cheap flights from Milwaukee to Puerto Rico from $108

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 9/22. 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

American Airlines Logo
1:43 pm - 11:59 pmMKE-SJU
9h 16m1 stop
American Airlines Logo
7:45 am - 11:16 pmSJU-MKE
16h 31m1 stop
$215American Airlines
Find Deal
Fri, Oct 24 - Thu, Oct 30
United Airlines Logo
12:14 pm - 12:36 amMKE-SJU
10h 22m2 stops
United Airlines Logo
2:05 am - 9:46 amSJU-MKE
9h 41m1 stop
$235United Airlines
Find Deal
Wed, Jan 21 - Fri, Jan 30
American Airlines Logo
1:43 pm - 11:59 pmMKE-SJU
9h 16m1 stop
American Airlines Logo
2:35 pm - 11:30 pmSJU-MKE
9h 55m2 stops
$245American Airlines
Find Deal
Fri, Oct 24 - Thu, Oct 30
Southwest Logo
12:20 pm - 11:30 pmMKE-SJU
10h 10m1 stop
Southwest Logo
10:30 pm - 10:50 amSJU-MKE
13h 20m1 stop
$265Southwest
Find Deal
Fri, Sep 26 - Sun, Sep 28
Delta Logo
2:45 pm - 11:17 pmMKE-SJU
6h 32m1 stop
Delta Logo
6:20 pm - 11:25 pmSJU-MKE
7h 05m1 stop
$274Delta
Find Deal
Sat, Nov 15 - Tue, Nov 18
Southwest Logo
5:30 am - 4:20 pmMKE-SJU
9h 50m2 stops
Southwest Logo
5:50 am - 3:45 pmSJU-MKE
10h 55m1 stop
$297Southwest
Find Deal
Sun, Sep 7 - Fri, Sep 12
Logo
10:19 am - 8:27 pmMKE-SJU
8h 08m1 stop
Logo
2:59 am - 12:51 pmSJU-MKE
11h 52m1 stop
$299
Find Deal
Sun, Dec 7 - Thu, Dec 11
Delta Logo
7:00 am - 4:51 pmMKE-SJU
7h 51m1 stop
Delta Logo
1:22 pm - 8:12 pmSJU-MKE
8h 50m1 stop
$333Delta
Find Deal
Mon, Feb 9 - Sat, Feb 14
Spirit Airlines Logo
12:53 pm - 12:54 amMKE-SJU
11h 01m1 stop
Spirit Airlines Logo
3:19 pm - 11:58 amSJU-MKE
21h 39m1 stop
$345Spirit Airlines
Find Deal
Sun, Sep 21 - Wed, Sep 24
Spirit Airlines Logo
6:00 am - 3:10 pmMKE-SJU
8h 10m1 stop
Spirit Airlines Logo
3:19 pm - 11:58 amSJU-MKE
21h 39m1 stop
$390Spirit Airlines
Find Deal
Sun, Aug 31 - Sat, Sep 6

United Airlines flights from Milwaukee to Puerto Rico

Our best United Airlines deals on Milwaukee to Puerto Rico flight tickets
United Airlines
Jan 21
MKE12:14 pmMilwaukee-Mitchell
10h 22m
2 stops
SJU12:36 amSan Juan Luis Munoz Marin Intl
Jan 30
SJU2:05 amSan Juan Luis Munoz Marin Intl
9h 41m
1 stop
MKE9:46 amMilwaukee-Mitchell
$235
Find similar
United Airlines
Jan 21
MKE12:14 pmMilwaukee-Mitchell
10h 22m
2 stops
SJU12:36 amSan Juan Luis Munoz Marin Intl
Jan 30
SJU2:05 amSan Juan Luis Munoz Marin Intl
11h 29m
2 stops
MKE11:34 amMilwaukee-Mitchell
$276
Find similar
United Airlines
Jan 31
MKE12:14 pmMilwaukee-Mitchell
10h 22m
2 stops
SJU12:36 amSan Juan Luis Munoz Marin Intl
Feb 6
SJU2:05 amSan Juan Luis Munoz Marin Intl
9h 41m
1 stop
MKE9:46 amMilwaukee-Mitchell
$292
Find similar

American Airlines flights from Milwaukee to Puerto Rico

Our best American Airlines deals on Milwaukee to Puerto Rico flight tickets
American Airlines
Oct 24
MKE1:43 pmMilwaukee-Mitchell
9h 16m
1 stop
SJU11:59 pmSan Juan Luis Munoz Marin Intl
Oct 30
SJU7:45 amSan Juan Luis Munoz Marin Intl
16h 31m
1 stop
MKE11:16 pmMilwaukee-Mitchell
$215
Find similar
American Airlines
Oct 24
MKE1:43 pmMilwaukee-Mitchell
9h 16m
1 stop
SJU11:59 pmSan Juan Luis Munoz Marin Intl
Oct 30
SJU2:35 pmSan Juan Luis Munoz Marin Intl
9h 55m
2 stops
MKE11:30 pmMilwaukee-Mitchell
$245
Find similar
American Airlines
Sep 26
MKE5:46 pmMilwaukee-Mitchell
19h 29m
1 stop
SJU2:15 pmSan Juan Luis Munoz Marin Intl
Oct 2
SJU1:37 pmSan Juan Luis Munoz Marin Intl
11h 32m
2 stops
MKE12:09 amMilwaukee-Mitchell
$252
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 August 20, 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

Fri 10/24

1:43 pm-11:59 pm

1 stop9h 16m

San Juan Luis Munoz Marin Intl

Thu 10/30

7:45 am-11:16 pm

1 stop16h 31m

$215

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Wed 1/21

12:14 pm-12:36 am

2 stops10h 22m

San Juan Luis Munoz Marin Intl

Fri 1/30

2:05 am-9:46 am

1 stop9h 41m

$235

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Fri 10/24

1:43 pm-11:59 pm

1 stop9h 16m

San Juan Luis Munoz Marin Intl

Thu 10/30

2:35 pm-11:30 pm

2 stops9h 55m

$245

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Fri 9/26

12:20 pm-11:30 pm

1 stop10h 10m

San Juan Luis Munoz Marin Intl

Sun 9/28

10:30 pm-10:50 am

1 stop13h 20m

$265

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sat 11/15

2:45 pm-11:17 pm

1 stop6h 32m

San Juan Luis Munoz Marin Intl

Tue 11/18

6:20 pm-11:25 pm

1 stop7h 05m

$274

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sun 9/7

5:30 am-4:20 pm

2 stops9h 50m

San Juan Luis Munoz Marin Intl

Fri 9/12

5:50 am-3:45 pm

1 stop10h 55m

$297

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sun 12/7

10:19 am-8:27 pm

1 stop8h 08m

San Juan Luis Munoz Marin Intl

Thu 12/11

2:59 am-12:51 pm

1 stop11h 52m

$299

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Mon 2/9

7:00 am-4:51 pm

1 stop7h 51m

San Juan Luis Munoz Marin Intl

Sat 2/14

1:22 pm-8:12 pm

1 stop8h 50m

$333

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sun 9/21

12:53 pm-12:54 am

1 stop11h 01m

San Juan Luis Munoz Marin Intl

Wed 9/24

3:19 pm-11:58 am

1 stop21h 39m

$345

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sun 8/31

6:00 am-3:10 pm

1 stop8h 10m

San Juan Luis Munoz Marin Intl

Sat 9/6

3:19 pm-11:58 am

1 stop21h 39m

$390

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 $347.

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 $438 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 $357 on momondo.

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

You could potentially save up to 84% 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

Direct flights

None
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
3,207 reviews
Search Frontier flights
United AirlinesPriceFrom $202Free CancellationRating
7.4
8,928 reviews
Search United Airlines flights
Spirit AirlinesPriceFrom $208Free CancellationRating
6.3
8,039 reviews
Search Spirit Airlines flights
DeltaPriceFrom $223Free CancellationRating
7.9
7,982 reviews
Search Delta flights
American AirlinesPriceFrom $275Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $322Free CancellationRating
8.0
4,246 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.

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Find better results for your trip to Puerto Rico

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