SJU - MKE

$87 Find Cheap Flights from San Juan to Milwaukee

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Juan to Milwaukee departing on 2/24. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Milwaukee

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Juan to Milwaukee, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Juan to Milwaukee, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$188
Overall average: $279
Frontier
Wed 2/25Sat 2/28
SJU - MKE • 1 stop
Cheapest one-way
$87
Typical prices: $156-$357
Frontier
Tue 2/24
SJU - MKE • 1 stop
Top airlines
Frontier
Cheapest • from $188 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 25% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 26% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Milwaukee!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Juan to Milwaukee (SJU-MKE)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Juan to Milwaukee 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Juan to Milwaukee

Wed, Feb 25 - Sat, Feb 28
Frontier Logo
3:53 am - 6:42 pm
SJU
-
MKE
16h 49m
1 stop
Frontier Logo
7:47 pm - 2:53 am
MKE
-
SJU
29h 06m
1 stop
$188Frontier
Thu, Feb 19 - Mon, Feb 23
Frontier Logo
6:00 am - 9:43 am
SJU
-
MKE
29h 43m
1 stop
Frontier Logo
8:11 pm - 9:54 am
MKE
-
SJU
11h 43m
1 stop
$202Frontier
Thu, Feb 19 - Mon, Feb 23
Frontier Logo
6:00 am - 9:43 am
SJU
-
MKE
29h 43m
1 stop
Frontier Logo
8:11 pm - 9:54 am
MKE
-
SJU
11h 43m
1 stop
$213Frontier
Wed, May 6 - Sun, May 10
Frontier Logo
3:08 am - 11:08 am
SJU
-
MKE
9h 00m
1 stop
Frontier Logo
12:03 pm - 2:01 am
MKE
-
SJU
12h 58m
1 stop
$223Frontier
Tue, Feb 17 - Mon, Feb 23
Frontier Logo
3:53 am - 7:40 am
SJU
-
MKE
29h 47m
1 stop
Frontier Logo
8:11 pm - 2:53 am
MKE
-
SJU
28h 42m
1 stop
$251Frontier
Fri, Mar 13 - Mon, Mar 16
Delta Logo
5:30 pm - 11:58 pm
SJU
-
MKE
7h 28m
1 stop
Delta Logo
3:55 pm - 11:15 pm
MKE
-
SJU
6h 20m
1 stop
$256Delta
Mon, Mar 2 - Wed, Mar 11
Frontier Logo
3:53 am - 3:44 pm
SJU
-
MKE
13h 51m
1 stop
Frontier Logo
6:35 pm - 1:58 am
MKE
-
SJU
6h 23m
1 stop
$259Frontier
Wed, Apr 15 - Wed, Apr 29
American Airlines Logo
11:59 pm - 10:59 am
SJU
-
MKE
12h 00m
1 stop
American Airlines Logo
6:00 am - 10:05 pm
MKE
-
SJU
15h 05m
1 stop
$261American Airlines
Wed, Apr 15 - Wed, Apr 29
American Airlines Logo
11:59 pm - 10:59 am
SJU
-
MKE
12h 00m
1 stop
American Airlines Logo
1:10 pm - 10:05 pm
MKE
-
SJU
7h 55m
1 stop
$262American Airlines
Wed, Apr 15 - Wed, Apr 29
American Airlines Logo
11:59 pm - 10:59 am
SJU
-
MKE
12h 00m
1 stop
American Airlines Logo
1:10 pm - 10:05 pm
MKE
-
SJU
7h 55m
1 stop
$263American Airlines
Booking Insights

KAYAK's insights & trends for San Juan to Milwaukee flights

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

What is the cheapest month to fly from San Juan Luis Munoz Marin Intl Airport to Milwaukee?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Juan Luis Munoz Marin Intl Airport to Milwaukee, 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 San Juan Luis Munoz Marin Intl Airport to Milwaukee is February, where tickets cost $279 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $495 and $490 respectively.

How far in advance should I book a flight from San Juan Luis Munoz Marin Intl Airport to Milwaukee?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Juan Luis Munoz Marin Intl Airport to Milwaukee, 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 San Juan Luis Munoz Marin Intl Airport to Milwaukee, you should book around 4 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$87
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 30% increase in price.
Flight from San Juan to Milwaukee

When to book flights from San Juan to Milwaukee

Are your dates flexible? Find out the best times to travel from San Juan to Milwaukee based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking San Juan to Milwaukee flights

  • What is the cheapest flight from San Juan Luis Munoz Marin Intl Airport to Milwaukee?

    In the last 3 days, the lowest price for a flight from San Juan Luis Munoz Marin Intl Airport to Milwaukee was $87 for a one-way ticket and $188 for a round-trip.

  • Do I need a passport to fly between San Juan and Milwaukee?

    A passport is required to fly from San Juan to Milwaukee.

  • Which airports will I be using when flying from San Juan to Milwaukee?

    When flying out of San Juan you will be using San Juan Luis Munoz Marin Intl. You will be landing at Milwaukee, also known as Milwaukee-Mitchell.

  • Which aircraft models fly most regularly from San Juan to Milwaukee?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Juan to Milwaukee?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between San Juan and Milwaukee, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from San Juan to Milwaukee, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from San Juan to Milwaukee are Southwest and Delta. With an average price for the route of $439 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $399 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from San Juan to Milwaukee?

    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 San Juan to Milwaukee.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Milwaukee from San Juan 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 San Juan to Milwaukee?

    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 to Milwaukee with an airline and back to San Juan with another airline. Booking your flights between San Juan and MKE can sometimes prove cheaper using this method.

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

    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 to Milwaukee from San Juan up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from San Juan to Milwaukee

 
See real verified KAYAK customer reviews for airlines flying from San Juan to Milwaukee. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Juan to Milwaukee? 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 4280 reviews
8.0Comfort
8.1Boarding
7.5Entertainment
7.0Food
8.6Crew
Airline reviews

My flight from Denver to Minneapolis was excellent. My flight from Minneapolis to Denver was one of the worst I flights I have ever experienced. I had a window seat, the gentleman in the middle seat was morbidly obese and SW should have made him purchase two seats. His elbow dug into my arm most of the way even after I asked to please be careful. I was literally squashed between the him and the window with no wiggle room. The plane was full so it was not possible to ask for a different seat. I realize I should have complained to the flight attendant but I didn't feel anything could be done to rectify the situation. I fly SW often, I will continue to do so as this was my first negative experience.

10.0 ExcellentCarol, Feb 2026
DEN - MSP
Read more Southwest reviews

My flight from Denver to Minneapolis was excellent. My flight from Minneapolis to Denver was one of the worst I flights I have ever experienced. I had a window seat, the gentleman in the middle seat was morbidly obese and SW should have made him purchase two seats. His elbow dug into my arm most of the way even after I asked to please be careful. I was literally squashed between the him and the window with no wiggle room. The plane was full so it was not possible to ask for a different seat. I realize I should have complained to the flight attendant but I didn't feel anything could be done to rectify the situation. I fly SW often, I will continue to do so as this was my first negative experience.

I was assigned seat 7E, yet my boarding was Group 5, which caused me to have to put my luggage in the back of the plance above `19 or 20 aisle, as passengers who had boarded earlier took the overhead bins in the front. SW needs to monitor bin space and ensure that bin space above the seat are aligned to those sitting near their seats. Also the seating assignments needs to align with group number. Maybe board those last first and so on? Having said the ALL the passengers on the plane were gracious enough to allow me and other passengers in this dilema to retrieve our luggage and helped us along the way. I always love the flight staff, as always their fantastic and I can't rave about them enough!

I appreciate the staff who allowed me to board though I arrived a little late! Regarding the assigned seating, I had booked my flight before this change and wasn't aware of the change at the time, and so I didn't select a seat at booking as I didn't realize it was relevant. Better communication about the change would have been helpful for preparing.

Flight attendants very hospitable and friendly. Pilot flew a smooth take off and landing.

Paid for premium extra leg room but the bin space for rows 1-3 had to go in rows 4-6 and 4-6 had to go to 7-9 because flight attendants have snacks and their luggage upfront. So we pay extra to have to fight thru traffic to get our bags. Only 2nd day of new seating so hope they fix this.

WIFI was great. My selection for seating is an aisle, but during my trip, I never had an aisle seat. If we can get that corrected, I will be thrilled. No snack or drink on this flight.

WIFI was great. My selection for seating is an aisle, but during my trip, I never had an aisle seat. If we can get that corrected, I will be thrilled.

The wifi on the plane is great. The only issue that I have is that I prefer an aisle seat and on my trips this week, I was either in the middle or window. If we can work to secure aisle seating, I will be thrilled. Nice trip.

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

Everything went smoothly and we even arrived a little bit early.

First class and monitors weren’t working for mine & my husbands. Eventually fixed, but quite annoyed as we bought first class. Also, No foot rests.

Prior to takeoff, the pilot told us there was a possibility of not being able to land and going to Portland. Well that happened, we took off and then did 8 loops around Spokane before the pilot told us we ran out of fuel and had to go to Portland. So for a 35 minute flight we have now been on the plane for 3 hours (boarded at 6:50 am and landed in Portland at 10:30). Then, we just sat in Portland's airport with no updates of when we can start heading back. All of a sudden, our pilots and crew just left, leaving us stranded in a different city and state. We continued to sit in Portland until we finally got a new crew assigned and boarded the plane (This was from 10:30-2). We then sat on the plane for an additional hour before take off because they had to count us multiple times. We finally landed in Spokane at 3:55 PM. So a flight that should have taken at max an hour took us 10 hours and we missed the majority of the recruiting event we went for.

It was delayed but other than that it was great.

Got on the plane and sat there for an hour before departure.

Second flight in a row where the entertainment system is broken. 5 hour long flight with no entertainment and flight attendants did not seem interested in resolving the matter. Very shocked to be treated this poorly considering I paid for a first class experience and have Diamond Medallion status.

They double booked seats, the gate staff changed my ticket as I was boarding she went over to the computer and changed it without telling me. She messed up an entire three row section for me and others. Other travelers were outraged but the gate staff were so rude, so condescending saying it wasn't their problem to solve. I would rate this a zero if I could. Will not fly Delta again I'll stick with United and American.

Comfort seating was on the tight side. Maybe it was a smaller plane(?)

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Timing, quality of service, promptness and courtesy of the staff

I upgraded my seat and was promised it would be next to the emergency door for extra leg room and they said it was premium plus but it was at the back of the plane...same thing happened from Newark to Dubai

Everything except the food and entertainment. It was a great experience though

Bad food, bad service, cold cabin with no additional blankets when asked for (they told me they don’t provide additional blankets). I’m a frequent traveler and this is one of the worst companies I traveled with (by the way I thought that I booked my ticket with Lufthansa but I didn’t see that the flights were handled by United).

United Airlines is my preferred airlines and I am thankful for Gary who also help support me on the phone to switch my flight literally last min.

Not being stranded in Chicago for her airport to 11:30 tomorrow morning the 3rd

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

Very poor. The flight was delayed from Toronto because some forget to do there job . I got to my connecting gate in San Francisco 10 minutes before the departure.but this didn’t let me board even though the flight was still there for an other 30 minutes. The the gentleman at the unite airline desk told me that they usually wait for passengers but air Canada called and told them not to we I been rerouted to Manila instead of Hong Kong . In San Francisco they mad me check in my carryon bag . I was told the it will directly go yo ho chi minn cuyt but I was told that by the Vietnams airline desk that’s not there I’m 10 hours behind my scheduled flight and looks like I I’m going without baggage. I don’t have a chance of catching ..

Great other than a couple very drunk guys that for a while kept bumping my seat from behind. The staff did their best to control them. Even refused serving them alcohol and allowed the gal sitting next to them to move.

The attendant on board was amazing. She should be doing business/first international long haul.

The boarding was cumbersome. The staff was not aligned. They called group 1 but then the agent said no. Then they called group 1 again but still would not board us. Then they called group 2 and they all came up and still hadn’t started boarding. Then someone came from the plane and said why is no one coming? And the agent said bc i thought not yet and she said I said over the walkie talkie to send the passengers down? What was not clear about that? Also, onboard, the crew gave announcements very ironic/authoritative, and in first class they gave us a cheesebox. My expectations based on competition airlines, is a warm meal. A little underwhelming.

Generally good. Flight left on time and the seats are comfortable. Plenty of space in front if you in you choose a comfort plus seat, completely worth spending the extra money given the amount of hours the flight lasts. The food tastes good but I would say it’s a the amount is too little. The crew was friendly and efficient. There was a some turbulence at different points into the flight. American Airlines has good deals to NZ if you book with plenty of time before you plan on going.

the plane was so hot!! the air-conditioning was barely blowing. The flight was delayed, and we had to sit on the hot plane before take off for an extended amount of time, waiting on international passengers. Would not have been so bad if it was not so hot. They said it would get better after take off, but it did not.

They are always late and seats was also not having working charger

We flew in first class. The crew did not offer drinks before the flight took off, but they treated us well during the flight. The food was excellent. There was actually too much food served, but it was nice to have all the options.

did not have enough meal for first class passengers so offer us snack

Arrived 40 min early which was great - sat in runway for 35 min so no gain. Then waited for luggage 45 min. They need to staff accordingly knowing its one of the busiest week in Phx

My flight got rerouted due to crew rest. I was sent to Dallas customer service was not very polite. Was given a $40 room voucher for Motel 6 and $12 to eat with. It delayed me by a day. Where if I would have just stuck with my original flight Arizona was delayed to Cleveland and I could have made it home. They put me on a 9:00 flight out of Dallas to Cleveland without my knowledge or consent. When originally I was told it would be 8:45 a.m. on February 1st. I told them I could not take the 9:00 flight because I did not have anybody to pick me up from the airport at that time. I'm extremely disappointed in how I was treated. And I will not fly American Airlines again.

I am very appreciative of the help provided to me by Dennis and Whitney. I had lost my phone at EWR airport and they were very kind in assisting me. This included advice on how to file a report and also helping me connect with family. The pilot was also great about keeping passengers updated on the flight progress with regular communications over the system.

Awful. Original flight was delayed 5 hours. Had to to take a connecting flight instead of direct. Had a 4 hour layover. I missed all of my morning meetings getting in 5 hours later than I was supposed to and had to change to take a later flight the next day to get them back in which cia time another $150.

Old equipment, needs upgrade and seat comfort. Internet didn't work 75% or the time.

Cancelled my flight, said next flight was 30hrs later. Had to come out of pocket $500 to get on a SW flight

Cancellation policy fee was not mentioned when booking else I never would have booked this. Customer service was very rude

All of our flights were canceled, though every other airline was flying out and in

We were on the tarmac waiting for a gate at Logan for 40, minutes. The crew handled it well. Can't blame the airline.

That gate is like a ducking shelter at Newark No where to sit Outlets that don’t work Bathrooms that are dirty

Everything was good. On time, boarding fast, flight attendants friendly.

Great, but seats are terrible. Way too cramped for any human.

Spirit has always and will always stink. Absolute worst airline around.

It was smooth sailing snags we had a really smooth landing and a great flight!

The entire experience was so surprisingly pleasant. And the blocked extra seat between us was such an amazing and nice bonus. Great experience all around and I can’t wait to fly with spirit again!

Everything you need to know for your flight from San Juan to Milwaukee

Information on your arrival and departure airports