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Cheap flights from Milwaukee to Puerto Rico from $101

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 3/2. 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.
Frontier Logo
4:39 pm - 2:48 am
MKE
-
SJU
8h 09m
1 stop
Frontier Logo
3:53 am - 9:43 am
SJU
-
MKE
7h 50m
1 stop
$247Frontier
Tue, Feb 17 - Thu, Feb 19
Frontier Logo
7:42 pm - 2:42 pm
MKE
-
SJU
18h 00m
1 stop
Frontier Logo
3:19 pm - 11:08 am
SJU
-
MKE
20h 49m
1 stop
$251Frontier
Sat, Apr 18 - Wed, Apr 22
United Airlines Logo
12:13 pm - 8:34 pm
MKE
-
SJU
7h 21m
1 stop
United Airlines Logo
1:00 am - 10:04 am
SJU
-
MKE
10h 04m
1 stop
$256United Airlines
Sat, Apr 25 - Fri, May 1
Frontier Logo
6:35 pm - 10:45 pm
MKE
-
SJU
27h 10m
1 stop
Frontier Logo
3:08 am - 7:30 am
SJU
-
MKE
29h 22m
1 stop
$258Frontier
Wed, Mar 18 - Tue, Mar 24
Frontier Logo
6:35 pm - 2:03 am
MKE
-
SJU
6h 28m
1 stop
Frontier Logo
2:59 pm - 7:30 am
SJU
-
MKE
17h 31m
1 stop
$261Frontier
Tue, Mar 10 - Sat, Mar 14
Frontier Logo
7:37 pm - 11:27 am
MKE
-
SJU
13h 50m
1 stop
Frontier Logo
11:15 am - 3:44 pm
SJU
-
MKE
30h 29m
1 stop
$264Frontier
Thu, Feb 26 - Mon, Mar 2
Frontier Logo
7:52 pm - 9:54 am
MKE
-
SJU
12h 02m
1 stop
Frontier Logo
4:25 pm - 9:43 am
SJU
-
MKE
19h 18m
1 stop
$268Frontier
Mon, Feb 16 - Thu, Feb 19
United Airlines Logo
6:49 am - 2:44 pm
MKE
-
SJU
6h 55m
1 stop
United Airlines Logo
1:00 am - 10:04 am
SJU
-
MKE
10h 04m
1 stop
$269United Airlines
Tue, May 5 - Tue, May 12
Frontier Logo
6:37 pm - 9:54 am
MKE
-
SJU
13h 17m
1 stop
Frontier Logo
3:53 am - 9:43 am
SJU
-
MKE
7h 50m
1 stop
$272Frontier
Sun, Feb 22 - Thu, Feb 26
Frontier Logo
8:39 am - 11:53 pm
MKE
-
SJU
13h 14m
1 stop
Frontier Logo
3:53 am - 3:44 pm
SJU
-
MKE
13h 51m
1 stop
$274Frontier
Thu, Feb 19 - Tue, Feb 24

Frontier flights from Milwaukee to Puerto Rico

Our best Frontier deals on Milwaukee to Puerto Rico flight tickets
Frontier
Feb 17
MKE4:39 pmMilwaukee-Mitchell
8h 09m
1 stop
SJU2:48 amSan Juan Luis Munoz Marin Intl
Feb 19
SJU3:53 amSan Juan Luis Munoz Marin Intl
7h 50m
1 stop
MKE9:43 amMilwaukee-Mitchell
$247
Frontier
Apr 18
MKE7:42 pmMilwaukee-Mitchell
18h 00m
1 stop
SJU2:42 pmSan Juan Luis Munoz Marin Intl
Apr 22
SJU3:19 pmSan Juan Luis Munoz Marin Intl
20h 49m
1 stop
MKE11:08 amMilwaukee-Mitchell
$251
Frontier
Mar 18
MKE6:35 pmMilwaukee-Mitchell
27h 10m
1 stop
SJU10:45 pmSan Juan Luis Munoz Marin Intl
Mar 24
SJU3:08 amSan Juan Luis Munoz Marin Intl
29h 22m
1 stop
MKE7:30 amMilwaukee-Mitchell
$258

United Airlines flights from Milwaukee to Puerto Rico

Our best United Airlines deals on Milwaukee to Puerto Rico flight tickets
United Airlines
Apr 25
MKE8:00 amMilwaukee-Mitchell
11h 38m
1 stop
SJU8:38 pmSan Juan Luis Munoz Marin Intl
May 1
SJU1:00 amSan Juan Luis Munoz Marin Intl
10h 04m
1 stop
MKE10:04 amMilwaukee-Mitchell
$256
United Airlines
May 5
MKE6:49 amMilwaukee-Mitchell
6h 55m
1 stop
SJU2:44 pmSan Juan Luis Munoz Marin Intl
May 12
SJU1:00 amSan Juan Luis Munoz Marin Intl
10h 04m
1 stop
MKE10:04 amMilwaukee-Mitchell
$269
United Airlines
May 2
MKE10:20 amMilwaukee-Mitchell
12h 30m
2 stops
SJU11:50 pmSan Juan Luis Munoz Marin Intl
May 10
SJU7:40 amSan Juan Luis Munoz Marin Intl
7h 47m
1 stop
MKE2:27 pmMilwaukee-Mitchell
$314

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 February 6, 2026.
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 2/17

4:39 pm-2:48 am

1 stop8h 09m

San Juan Luis Munoz Marin Intl

Thu 2/19

3:53 am-9:43 am

1 stop7h 50m

$247

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sat 4/18

7:42 pm-2:42 pm

1 stop18h 00m

San Juan Luis Munoz Marin Intl

Wed 4/22

3:19 pm-11:08 am

1 stop20h 49m

$251

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sat 4/25

12:13 pm-8:34 pm

1 stop7h 21m

San Juan Luis Munoz Marin Intl

Fri 5/1

1:00 am-10:04 am

1 stop10h 04m

$256

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Wed 3/18

6:35 pm-10:45 pm

1 stop27h 10m

San Juan Luis Munoz Marin Intl

Tue 3/24

3:08 am-7:30 am

1 stop29h 22m

$258

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Tue 3/10

6:35 pm-2:03 am

1 stop6h 28m

San Juan Luis Munoz Marin Intl

Sat 3/14

2:59 pm-7:30 am

1 stop17h 31m

$261

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Thu 2/26

7:37 pm-11:27 am

1 stop13h 50m

San Juan Luis Munoz Marin Intl

Mon 3/2

11:15 am-3:44 pm

1 stop30h 29m

$264

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Mon 2/16

7:52 pm-9:54 am

1 stop12h 02m

San Juan Luis Munoz Marin Intl

Thu 2/19

4:25 pm-9:43 am

1 stop19h 18m

$268

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Tue 5/5

6:49 am-2:44 pm

1 stop6h 55m

San Juan Luis Munoz Marin Intl

Tue 5/12

1:00 am-10:04 am

1 stop10h 04m

$269

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sun 2/22

6:37 pm-9:54 am

1 stop13h 17m

San Juan Luis Munoz Marin Intl

Thu 2/26

3:53 am-9:43 am

1 stop7h 50m

$272

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Thu 2/19

8:39 am-11:53 pm

1 stop13h 14m

San Juan Luis Munoz Marin Intl

Tue 2/24

3:53 am-3:44 pm

1 stop13h 51m

$274

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.

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 $442 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 $378 on momondo.

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

You could potentially save up to 35% 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 20m

Direct flights

None
The fastest flight from Milwaukee to Puerto Rico takes 6h 20m
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 $85Free CancellationRating
5.7
3,054 reviews
Search Frontier flights
DeltaPriceFrom $118Free CancellationRating
7.9
8,162 reviews
Search Delta flights
United AirlinesPriceFrom $182Free CancellationRating
7.4
9,245 reviews
Search United Airlines flights
Spirit AirlinesPriceFrom $208Free CancellationRating
6.3
8,421 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $266Free CancellationRating
7.2
11,248 reviews
Search American Airlines flights
SouthwestPriceFrom $315Free CancellationRating
8.0
4,280 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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