$113 Find Cheap Flights from Milwaukee to Puerto Rico

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Milwaukee to Puerto Rico departing on 9/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Best Puerto Rico Flight Deals from Milwaukee

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Aguadilla
Aguadilla3 stops$541
Aguadilla
Aguadilla3 stops$541

Cheap Flights from Milwaukee to Puerto Rico

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Milwaukee to Puerto Rico that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Milwaukee to Puerto Rico

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Milwaukee to Puerto Rico.
Discover the best prices for you by selecting your travel dates on KAYAK.
Delta Logo
2:45 pm - 10:08 pmMKE-SJU
6h 23m1 stop
Delta Logo
5:19 pm - 11:25 pmSJU-MKE
7h 06m1 stop
$225Delta
Find Deal
Tue, Sep 16 - Tue, Sep 23
United Airlines Logo
7:00 am - 2:44 pmMKE-SJU
6h 44m1 stop
United Airlines Logo
1:05 am - 10:13 amSJU-MKE
10h 08m2 stops
$254United Airlines
Find Deal
Wed, Sep 17 - Sat, Sep 20
American Airlines Logo
5:06 am - 4:20 pmMKE-SJU
10h 14m2 stops
American Airlines Logo
3:55 pm - 11:29 pmSJU-MKE
8h 34m1 stop
$302American Airlines
Find Deal
Tue, Sep 16 - Tue, Sep 23
Spirit Airlines Logo
12:22 pm - 12:54 amMKE-SJU
11h 32m1 stop
Spirit Airlines Logo
1:59 am - 11:27 amSJU-MKE
10h 28m1 stop
$306Spirit Airlines
Find Deal
Fri, May 16 - Sat, May 24
Spirit Airlines Logo
12:22 pm - 12:54 amMKE-SJU
11h 32m1 stop
Spirit Airlines Logo
1:59 am - 11:27 amSJU-MKE
10h 28m1 stop
$309Spirit Airlines
Find Deal
Fri, May 16 - Wed, May 21
American Airlines Logo
11:20 am - 12:05 amMKE-SJU
11h 45m2 stops
American Airlines Logo
3:50 pm - 10:59 pmSJU-MKE
8h 09m1 stop
$322American Airlines
Find Deal
Fri, Aug 15 - Wed, Aug 20
 Logo
12:22 pm - 12:54 amMKE-SJU
11h 32m1 stop
 Logo
4:20 pm - 5:29 pmSJU-MKE
26h 09m1 stop
Mon, May 19 - Sat, Jun 7
 Logo
12:22 pm - 11:31 amMKE-SJU
22h 09m2 stops
 Logo
7:45 pm - 5:29 pmSJU-MKE
22h 44m3 stops
Wed, Jun 4 - Sat, Jun 7
Southwest Logo
6:10 am - 3:10 pmMKE-SJU
8h 00m1 stop
Southwest Logo
9:55 pm - 8:35 amSJU-MKE
11h 40m1 stop
$481Southwest
Find Deal
Sun, May 11 - Sun, May 11
Southwest Logo
10:35 am - 10:10 pmMKE-SJU
10h 35m1 stop
Southwest Logo
7:40 pm - 8:05 amSJU-MKE
13h 25m1 stop
$500Southwest
Find Deal
Tue, Jul 22 - Mon, Jul 28
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KAYAK's insights & trends for Milwaukee to Puerto Rico flights

Get data-powered insights and trends into flights from Milwaukee to Puerto Rico to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Milwaukee to Puerto Rico?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Milwaukee to Puerto Rico, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Milwaukee to Puerto Rico is September, when tickets cost $349 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $621 and $559 respectively.

What’s the cheapest day of the week to fly from Milwaukee to Puerto Rico?

The average price of all round-trip flights from Milwaukee to Puerto Rico clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Puerto Rico on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Thursday is the most expensive day to fly from Milwaukee to Puerto Rico. For your return ticket, we recommend flying on a Thursday and avoiding Sundays for the best deals.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Milwaukee to Puerto Rico, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Milwaukee to Puerto Rico, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.


Good to know

Low seasonJuly
High seasonMarch
Cheapest flight$113
Best time to beat the crowds but there is an average 20% increase in price.
Most popular time to fly and prices are also 14% lower on average.
Flight from Milwaukee to San Juan

FAQs - booking Puerto Rico flights

  • Do I need a visa or passport to visit Puerto Rico?

    U.S. citizens can visit Puerto Rico without a visa or passport since it's a U.S. territory. A valid government-issued photo ID, like a driver's license or military ID, is sufficient for entry. International visitors should verify their specific entry requirements based on their nationality prior to travel.

  • Which Puerto Rico airport should I fly into?

    San Juan's Luis Muñoz Marín Airport is Puerto Rico's primary hub, offering major airlines and international connections. Ponce's Mercedita Airport provides convenient access to southern regions. Aguadilla's Borinquen Airport (BQN) serves the northwest, known for its ease of access and proximity to popular beach destinations.

  • Are there any nonstop flights from Milwaukee to Puerto Rico?

    While there are no direct flights on this route, numerous options offer just one layover. For flights to San Juan, American Airlines connects through Miami International Airport (MIA) or Charlotte Douglas International Airport (CLT). Delta routes typically include layovers in Hartsfield–Jackson Atlanta International Airport (ATL) or John F. Kennedy International Airport (JFK), and United flights often stop in Chicago O'Hare International Airport (ORD). For flights to Aguadilla or Ponce, Frontier Airlines operates these routes and first connects through Orlando International Airport (MCO).

  • Can I bring my surfboard on the flight to Puerto Rico?

    If you're planning to explore Puerto Rico's famous West Coast surf destinations, you can bring your own board when flying with American Airlines. You can transport one bag or case containing multiple boards, but ensure you remove all fins and accessories prior to packing. Boards weighing 50 lbs. or less qualify as a standard checked bag, while heavier ones will result in extra fees.

  • How does KAYAK find such low prices on flights from Milwaukee to Puerto Rico?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Milwaukee to Puerto Rico.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Milwaukee to Puerto Rico?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Milwaukee to Puerto Rico is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Milwaukee to Puerto Rico?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Milwaukee to Puerto Rico with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Milwaukee to Puerto Rico?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Milwaukee to Puerto Rico up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Puerto Rico?

    The cheapest time of day to fly to Puerto Rico is generally at night, when round-trip flights cost $360 on average. Morning departures are around 13% more expensive than evening flights, on average. The most expensive time of day to fly to Puerto Rico is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $458.

Top tips for finding cheap flights to Puerto Rico

  • Your journey will start at Milwaukee Mitchell Airport (MKE), which is located around 7 miles from downtown. It is well-connected via the Wisconsin Coach Lines, Milwaukee County Transit System, as well as the Amtrak trains.
  • In the capital city of San Juan, you’ll find there are two airports. Luis Muñoz Marín Airport (SJU) serves major airlines and international flights, while Isla Grande Airport (SIG) caters to smaller aircraft and domestic routes. Flying to other cities on the island might require you to switch to the domestic airport.
  • Some Frontier Airlines flights require self-transfers. This means that upon reaching the layover city, you must recheck your luggage and pass through security again. Ensure your connection leaves enough time to do all of this and safely make it to your next flight. Traveling with only a carry-on can streamline this process and minimize potential issues.
  • For eco-conscious travelers, Delta is a good choice. They're shifting towards a more sustainable fleet and incorporating eco-friendly aviation fuels. Additionally, Delta is enhancing sustainability by using electric ground equipment and serving meals onboard that are sustainably sourced.
  • If you’re traveling on a budget, Frontier Airlines often has the lowest fares along this route, but be aware that this is for only airfare. Any additional services, like baggage or seat selection, will be charged an extra fee. This can add up, so consider one of their bundles, which offer an easy and affordable way to customize your trip.

Top 5 airlines serving from Milwaukee to Puerto Rico

Need help choosing which airline to fly with from Milwaukee to Puerto Rico? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4294 reviews
8.2Boarding
8.0Comfort
7.1Food
7.6Entertainment
8.6Crew
Airline reviews

It is southwest seat was ok. Not the most comfortable seat

8.0 ExcellentJohn, Apr 2025PVD - FLL
Read more Southwest reviews

It is southwest seat was ok. Not the most comfortable seat

I’ve always loved Southwest. No issues at all. I was flying standby and the gate agent was extremely friendly and helpful. Boarding was smooth and I was able to get a window seat in the emergency exit row. Crew was fantastic! They were very professional and accommodating. We had to divert from our destination due to weather but the flight crew kept everyone at ease and informed us of all pertinent information. Excellent flight

The price of the tickets isn't matching the flight experience. No matter how long the flight is, you're only getting pretzels. The flight attendants looked unkept and over it.

Plz don't take away free bags and free seating

The seats were a bit cramped and worn, but otherwise okay.

I would have liked to arrive on time - not 5 hours late!

After a 3 hour layover in Denver my flight was delayed over 5 hours! No explanation; no assistance; no offer to provide compensation; no one at Southwest was willing to offer any assistance. 8 hours in the Denver airport - ridiculous!

It was a perfect flight in all aspects! Both legs!

Only one drink pass through the cabin for a 4 hour flight. Quite rough and bumpy landing.

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

Our bag was lost so that made unnecessary chaos On our trip

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

It was an overnight flight and I desperately needed coffee before we landed, but Delta does only one beverage service, and that is shortly after takeoff, not before landing at 5 am.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

A bit rush for transit. Food and entertainment are not available

Boarding was a little difficult. The gate area at O'Hare was very small and crowded due to multiple gates in the area. Could not hear the intercom, so had to rely on signage to see when my group was boarding and the signage was blocked by passengers standing in the gate. Flight was great and we arrived in Montreal on time.

Multiple delays and not straight answer from the United team

For economy, it was very good. Staff was great, they even let some of us change seats for more leg room... Put an empty seat between us which was fantastic for a 12hr flight. Onboard entertainment was excellent, I think over 200 choices of movies/tv/etc The bad was the barely/nonfunctional wifi that cost either $16.99 or 1700 miles (full flight). It was atrocious... Definitely the worst of the last 3 long haul major airlines I was on the last few months.

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

Electric plugs didn't work. Entertainment system wasn't working

Several delays. Next flight was worse. Did not arrive home until 2am PT

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

First world problems, but still… We were seated in first class and asked for a cocktail on a very short, 50 minute flight. After our drink order was taken, a half hour went by, and we noticed that every other person in the small plane had been served except for us. We got up to ask about it, the drinks finally came, then were taken away three minutes later since the flight was so short. Really strange situation, on the other hand, we were in Utah.

We missed our flight. The boarding pass had the wrong gate and by the time we received the text from Kayak, our flight was already gone. I’ll never use Kayak again and will go direct to the airlines in the future.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Cabin felt crammed Snacks are lame But crew was super efficient getting us out on time despite delay

Took off on time and successfully avoided weather that looked to be a problem along the way

There were five broken seats on the plane. The crew was very rude in telling people they had to get off the plane and get a flight the next day. No call for volunteers, but telling people they had to get off. One woman was flying with her elderly mother and daughter and was told she had to leave or all three had to leave. Fortunately, a volunteer offered to stay. The situation was handled poorly.

The flight to Tokyo AA61 took off about two hours late, but then had to turn back. By that time the crew had to be replaced. Then they kept promising to take off in an hour, then in 3, then switch to the next day.

The reps working at the airport counter were dumber than a second coat of paint.

My costume jewelry was stolen out of my bag. Got to airport and my bag weighed 45 pounds- 5 pounds over cost me $100 Long lines in tier one. No entertainment No WiFi no free drinks or snacks

Not very good. Paid in excess of $400 for assigned seating for my family and that was not provided. I want that money back.

The seats were hard molded plastic covered in plastic vinyl. And the scam to charge people extra to sit together. Don’t they know we can just ask someone to trade seats. And watching the staff separate young children from parents… super classy. We had to guilt them into offering up our seats. This companies policies suck. Don’t give them your money.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

Seats are uncomfortable but price is good. Guess I can put up with misery for four hours.

I’ve never traveled on Frontier before. If you want basic, no frills, friendly service at great prices then give them a fly!

Cancelled and declined to find alternatives Earlier flight is 2 days later Sent the cancellation notification very late, wish I knew earlier would have stayed to watch the Miami open final game Very disappointing service

The worst flight of my life. Never will I fly frontier again

Everything you need to know for your flight from Milwaukee to Puerto Rico

Information on your arrival and departure airports

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