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Cheap flights from Milwaukee to Puerto Rico from $118

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 11/18. 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.
United Airlines Logo
10:30 am - 9:00 pmMKE-SJU
8h 30m1 stop
United Airlines Logo
3:46 pm - 10:59 pmSJU-MKE
9h 13m1 stop
$235United Airlines
Find Deal
Tue, Feb 3 - Tue, Feb 10
United Airlines Logo
7:50 am - 9:26 pmMKE-SJU
11h 36m1 stop
United Airlines Logo
2:05 am - 10:15 amSJU-MKE
10h 10m1 stop
$261United Airlines
Find Deal
Sun, Jan 18 - Fri, Jan 23
Southwest Logo
5:45 am - 6:30 pmMKE-SJU
10h 45m2 stops
Southwest Logo
6:00 am - 5:00 pmSJU-MKE
13h 00m1 stop
$274Southwest
Find Deal
Sat, Jan 31 - Sat, Feb 7
Delta Logo
5:20 am - 2:30 pmMKE-SJU
7h 10m1 stop
Delta Logo
6:27 pm - 11:46 pmSJU-MKE
7h 19m1 stop
$276Delta
Find Deal
Mon, Jan 19 - Fri, Jan 30
Frontier Logo
6:02 pm - 2:50 amMKE-SJU
6h 48m1 stop
Frontier Logo
11:05 am - 5:04 pmSJU-MKE
7h 59m1 stop
$281Frontier
Find Deal
Wed, Jan 21 - Wed, Jan 28
Frontier Logo
7:40 pm - 2:50 amMKE-SJU
29h 10m1 stop
Frontier Logo
3:55 am - 6:45 pmSJU-MKE
16h 50m1 stop
$286Frontier
Find Deal
Thu, Feb 5 - Wed, Feb 11
Delta Logo
2:34 pm - 11:44 pmMKE-SJU
7h 10m1 stop
Delta Logo
7:30 am - 4:29 pmSJU-MKE
10h 59m1 stop
$300Delta
Find Deal
Mon, Jan 12 - Sat, Jan 17
American Airlines Logo
6:00 am - 6:22 pmMKE-SJU
10h 22m2 stops
American Airlines Logo
8:20 am - 11:23 pmSJU-MKE
17h 03m1 stop
$308American Airlines
Find Deal
Tue, Feb 3 - Tue, Feb 10
American Airlines Logo
6:14 am - 8:58 pmMKE-SJU
12h 44m1 stop
American Airlines Logo
8:18 am - 2:17 pmSJU-MKE
7h 59m1 stop
$314American Airlines
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Fri, Nov 28 - Sat, Dec 6
Southwest Logo
3:15 pm - 12:10 amMKE-SJU
6h 55m1 stop
Southwest Logo
5:30 am - 2:40 pmSJU-MKE
11h 10m2 stops
$344Southwest
Find Deal
Sat, Jan 17 - Sat, Jan 24

United Airlines flights from Milwaukee to Puerto Rico

Our best United Airlines deals on Milwaukee to Puerto Rico flight tickets
United Airlines
Feb 3
MKE10:30 amMilwaukee-Mitchell
8h 30m
1 stop
SJU9:00 pmSan Juan Luis Munoz Marin Intl
Feb 10
SJU3:46 pmSan Juan Luis Munoz Marin Intl
9h 13m
1 stop
MKE10:59 pmMilwaukee-Mitchell
$235
Find similar
United Airlines
Jan 18
MKE7:50 amMilwaukee-Mitchell
11h 36m
1 stop
SJU9:26 pmSan Juan Luis Munoz Marin Intl
Jan 23
SJU2:05 amSan Juan Luis Munoz Marin Intl
10h 10m
1 stop
MKE10:15 amMilwaukee-Mitchell
$261
Find similar
United Airlines
Jan 21
MKE8:33 amMilwaukee-Mitchell
10h 53m
2 stops
SJU9:26 pmSan Juan Luis Munoz Marin Intl
Jan 27
SJU2:15 pmSan Juan Luis Munoz Marin Intl
10h 41m
2 stops
MKE10:56 pmMilwaukee-Mitchell
$304
Find similar

Southwest flights from Milwaukee to Puerto Rico

Our best Southwest deals on Milwaukee to Puerto Rico flight tickets
Southwest
Jan 31
MKE5:45 amMilwaukee-Mitchell
10h 45m
2 stops
SJU6:30 pmSan Juan Luis Munoz Marin Intl
Feb 7
SJU6:00 amSan Juan Luis Munoz Marin Intl
13h 00m
1 stop
MKE5:00 pmMilwaukee-Mitchell
$274
Find similar
Southwest
Jan 17
MKE3:15 pmMilwaukee-Mitchell
6h 55m
1 stop
SJU12:10 amSan Juan Luis Munoz Marin Intl
Jan 24
SJU5:30 amSan Juan Luis Munoz Marin Intl
11h 10m
2 stops
MKE2:40 pmMilwaukee-Mitchell
$344
Find similar
Southwest
Nov 2
MKE5:00 amMilwaukee-Mitchell
10h 05m
2 stops
SJU5:05 pmSan Juan Luis Munoz Marin Intl
Nov 6
SJU3:30 pmSan Juan Luis Munoz Marin Intl
9h 30m
2 stops
MKE11:00 pmMilwaukee-Mitchell
$399
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 October 30, 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

Tue 2/3

10:30 am-9:00 pm

1 stop8h 30m

San Juan Luis Munoz Marin Intl

Tue 2/10

3:46 pm-10:59 pm

1 stop9h 13m

$235

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sun 1/18

7:50 am-9:26 pm

1 stop11h 36m

San Juan Luis Munoz Marin Intl

Fri 1/23

2:05 am-10:15 am

1 stop10h 10m

$261

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sat 1/31

5:45 am-6:30 pm

2 stops10h 45m

San Juan Luis Munoz Marin Intl

Sat 2/7

6:00 am-5:00 pm

1 stop13h 00m

$274

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Mon 1/19

5:20 am-2:30 pm

1 stop7h 10m

San Juan Luis Munoz Marin Intl

Fri 1/30

6:27 pm-11:46 pm

1 stop7h 19m

$276

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Wed 1/21

6:02 pm-2:50 am

1 stop6h 48m

San Juan Luis Munoz Marin Intl

Wed 1/28

11:05 am-5:04 pm

1 stop7h 59m

$281

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Thu 2/5

7:40 pm-2:50 am

1 stop29h 10m

San Juan Luis Munoz Marin Intl

Wed 2/11

3:55 am-6:45 pm

1 stop16h 50m

$286

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Mon 1/12

2:34 pm-11:44 pm

1 stop7h 10m

San Juan Luis Munoz Marin Intl

Sat 1/17

7:30 am-4:29 pm

1 stop10h 59m

$300

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Tue 2/3

6:00 am-6:22 pm

2 stops10h 22m

San Juan Luis Munoz Marin Intl

Tue 2/10

8:20 am-11:23 pm

1 stop17h 03m

$308

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Fri 11/28

6:14 am-8:58 pm

1 stop12h 44m

San Juan Luis Munoz Marin Intl

Sat 12/6

8:18 am-2:17 pm

1 stop7h 59m

$314

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sat 1/17

3:15 pm-12:10 am

1 stop6h 55m

San Juan Luis Munoz Marin Intl

Sat 1/24

5:30 am-2:40 pm

2 stops11h 10m

$344

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 $338.

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 $436 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 $299 on momondo.

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

You could potentially save up to 83% 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.
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  • 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
3,123 reviews
Search Frontier flights
United AirlinesPriceFrom $202Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights
DeltaPriceFrom $215Free CancellationRating
7.9
7,993 reviews
Search Delta flights
Spirit AirlinesPriceFrom $226Free CancellationRating
6.3
8,115 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $273Free CancellationRating
7.2
11,030 reviews
Search American Airlines flights
SouthwestPriceFrom $315Free CancellationRating
8.0
4,242 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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