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Cheap flights from Milwaukee to Puerto Rico from $88

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 4/20. 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
1 adult, Economy, 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
4:15 pm - 12:51 am
MKE
-
SJU
7h 36m
1 stop
Frontier Logo
3:19 pm - 11:26 am
SJU
-
MKE
21h 07m
1 stop
$293Frontier
Sat, Apr 11 - Wed, Apr 15
Frontier Logo
4:15 pm - 12:51 am
MKE
-
SJU
7h 36m
1 stop
Frontier Logo
6:30 am - 6:49 pm
SJU
-
MKE
13h 19m
1 stop
$294Frontier
Sat, Apr 11 - Fri, Apr 17
Frontier Logo
1:37 pm - 2:01 am
MKE
-
SJU
11h 24m
1 stop
Frontier Logo
7:15 am - 1:52 pm
SJU
-
MKE
7h 37m
1 stop
$295Frontier
Sat, Apr 11 - Mon, Apr 20
Frontier Logo
1:37 pm - 2:01 am
MKE
-
SJU
11h 24m
1 stop
Frontier Logo
3:19 pm - 11:26 am
SJU
-
MKE
21h 07m
1 stop
$303Frontier
Sat, Apr 11 - Wed, Apr 15
Frontier Logo
12:21 pm - 2:01 am
MKE
-
SJU
12h 40m
1 stop
Frontier Logo
3:39 pm - 11:26 am
SJU
-
MKE
20h 47m
1 stop
$306Frontier
Thu, Apr 30 - Sun, May 3
American Airlines Logo
6:32 pm - 10:48 am
MKE
-
SJU
15h 16m
1 stop
American Airlines Logo
1:31 pm - 10:57 pm
SJU
-
MKE
10h 26m
2 stops
$309American Airlines
Sat, Apr 18 - Wed, Apr 22
Frontier Logo
7:53 pm - 11:29 pm
MKE
-
SJU
26h 36m
1 stop
Frontier Logo
10:59 am - 11:26 am
SJU
-
MKE
25h 27m
1 stop
$311Frontier
Sat, Apr 18 - Wed, Apr 22
Frontier Logo
4:26 pm - 12:52 am
MKE
-
SJU
7h 26m
1 stop
Frontier Logo
6:30 am - 11:26 am
SJU
-
MKE
29h 56m
1 stop
$313Frontier
Fri, Apr 10 - Sun, Apr 19
Frontier Logo
2:47 pm - 11:29 pm
MKE
-
SJU
7h 42m
1 stop
Frontier Logo
10:49 am - 11:26 am
SJU
-
MKE
25h 37m
1 stop
$317Frontier
Fri, Apr 17 - Sun, Apr 19
Frontier Logo
2:47 pm - 11:29 pm
MKE
-
SJU
7h 42m
1 stop
Frontier Logo
6:30 am - 11:26 am
SJU
-
MKE
29h 56m
1 stop
$318Frontier
Fri, Apr 17 - Sun, Apr 19

United Airlines flights from Milwaukee to Puerto Rico

Our best United Airlines deals on Milwaukee to Puerto Rico flight tickets
United Airlines
Apr 25
MKE12:13 pmMilwaukee-Mitchell
7h 21m
1 stop
SJU8:34 pmSan Juan Luis Munoz Marin Intl
May 8
SJU1:00 amSan Juan Luis Munoz Marin Intl
10h 04m
1 stop
MKE10:04 amMilwaukee-Mitchell
$326
United Airlines
Apr 11
MKE10:45 amMilwaukee-Mitchell
9h 39m
2 stops
SJU9:24 pmSan Juan Luis Munoz Marin Intl
Apr 16
SJU1:00 amSan Juan Luis Munoz Marin Intl
11h 32m
2 stops
MKE11:32 amMilwaukee-Mitchell
$340
United Airlines
Apr 11
MKE10:45 amMilwaukee-Mitchell
9h 39m
2 stops
SJU9:24 pmSan Juan Luis Munoz Marin Intl
Apr 14
SJU1:00 amSan Juan Luis Munoz Marin Intl
10h 00m
2 stops
MKE10:00 amMilwaukee-Mitchell
$351

Frontier flights from Milwaukee to Puerto Rico

Our best Frontier deals on Milwaukee to Puerto Rico flight tickets
Frontier
Mar 31
MKE5:44 pmMilwaukee-Mitchell
7h 19m
1 stop
SJU2:03 amSan Juan Luis Munoz Marin Intl
Apr 3
SJU6:00 amSan Juan Luis Munoz Marin Intl
10h 41m
1 stop
MKE3:41 pmMilwaukee-Mitchell
$288
Frontier
Mar 27
MKE9:01 pmMilwaukee-Mitchell
11h 56m
1 stop
SJU9:57 amSan Juan Luis Munoz Marin Intl
Apr 3
SJU6:00 amSan Juan Luis Munoz Marin Intl
10h 41m
1 stop
MKE3:41 pmMilwaukee-Mitchell
$293
Frontier
Apr 11
MKE4:15 pmMilwaukee-Mitchell
7h 36m
1 stop
SJU12:51 amSan Juan Luis Munoz Marin Intl
Apr 17
SJU6:30 amSan Juan Luis Munoz Marin Intl
13h 19m
1 stop
MKE6:49 pmMilwaukee-Mitchell
$294

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 March 24, 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

Cheapest round-trip

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sat 4/11

4:15 pm-12:51 am

1 stop7h 36m

San Juan Luis Munoz Marin Intl

Wed 4/15

3:19 pm-11:26 am

1 stop21h 07m

$293

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sat 4/11

4:15 pm-12:51 am

1 stop7h 36m

San Juan Luis Munoz Marin Intl

Fri 4/17

6:30 am-6:49 pm

1 stop13h 19m

$294
Quickest round-trip

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sat 4/11

1:37 pm-2:01 am

1 stop11h 24m

San Juan Luis Munoz Marin Intl

Mon 4/20

7:15 am-1:52 pm

1 stop7h 37m

$295

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sat 4/11

1:37 pm-2:01 am

1 stop11h 24m

San Juan Luis Munoz Marin Intl

Wed 4/15

3:19 pm-11:26 am

1 stop21h 07m

$303

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Thu 4/30

12:21 pm-2:01 am

1 stop12h 40m

San Juan Luis Munoz Marin Intl

Sun 5/3

3:39 pm-11:26 am

1 stop20h 47m

$306

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sat 4/18

6:32 pm-10:48 am

1 stop15h 16m

San Juan Luis Munoz Marin Intl

Wed 4/22

1:31 pm-10:57 pm

2 stops10h 26m

$309

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sat 4/18

7:53 pm-11:29 pm

1 stop26h 36m

San Juan Luis Munoz Marin Intl

Wed 4/22

10:59 am-11:26 am

1 stop25h 27m

$311

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Fri 4/10

4:26 pm-12:52 am

1 stop7h 26m

San Juan Luis Munoz Marin Intl

Sun 4/19

6:30 am-11:26 am

1 stop29h 56m

$313

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Fri 4/17

2:47 pm-11:29 pm

1 stop7h 42m

San Juan Luis Munoz Marin Intl

Sun 4/19

10:49 am-11:26 am

1 stop25h 37m

$317

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Fri 4/17

2:47 pm-11:29 pm

1 stop7h 42m

San Juan Luis Munoz Marin Intl

Sun 4/19

6:30 am-11:26 am

1 stop29h 56m

$318

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 $317.

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 $444 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 $334 on momondo.

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 21m

Direct flights

None
The fastest flight from Milwaukee to Puerto Rico takes 6h 21m
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
DeltaPriceFrom $112Free CancellationRating
7.9
8,322 reviews
Search Delta flights
FrontierPriceFrom $117Free CancellationRating
5.7
3,018 reviews
Search Frontier flights
United AirlinesPriceFrom $202Free CancellationRating
7.4
9,469 reviews
Search United Airlines flights
Spirit AirlinesPriceFrom $219Free CancellationRating
6.3
8,534 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $256Free CancellationRating
7.1
11,491 reviews
Search American Airlines flights
SouthwestPriceFrom $315Free CancellationRating
8.0
4,331 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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