SJU - MKE

$92 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 1/21. 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
$199
Typical prices: $239-$381
Frontier
Wed 1/14Mon 1/19
SJU - MKE • 1 stop
Cheapest one-way
$92
Typical prices: $118-$375
Frontier
Wed 1/21
SJU - MKE • 1 stop
Top airlines
Frontier
Cheapest • from $199 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 11% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 22% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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, Jan 14 - Mon, Jan 19
Frontier Logo
7:34 pm - 6:47 pm
SJU
-
MKE
25h 13m1 stop
Frontier Logo
7:37 pm - 3:26 pm
MKE
-
SJU
17h 49m1 stop
$199Frontier
Fri, Feb 13 - Mon, Feb 16
Delta Logo
6:15 am - 2:50 pm
SJU
-
MKE
10h 35m1 stop
Delta Logo
12:20 pm - 11:58 pm
MKE
-
SJU
9h 38m1 stop
$235Delta
Thu, Jan 29 - Mon, Feb 2
American Airlines Logo
6:00 am - 3:57 pm
SJU
-
MKE
11h 57m2 stops
American Airlines Logo
1:04 pm - 9:39 pm
MKE
-
SJU
6h 35m1 stop
$239American Airlines
Thu, Jan 29 - Mon, Feb 2
American Airlines Logo
5:55 pm - 11:35 pm
SJU
-
MKE
7h 40m1 stop
American Airlines Logo
6:10 am - 8:50 pm
MKE
-
SJU
12h 40m2 stops
$240American Airlines
Fri, Feb 13 - Mon, Feb 16
American Airlines Logo
8:30 am - 5:47 pm
SJU
-
MKE
11h 17m2 stops
American Airlines Logo
4:46 pm - 5:00 am
MKE
-
SJU
10h 14m1 stop
$265American Airlines
Thu, Jan 29 - Thu, Feb 5
Frontier Logo
8:00 am - 6:16 pm
SJU
-
MKE
12h 16m1 stop
Frontier Logo
7:13 pm - 10:24 am
MKE
-
SJU
13h 11m1 stop
$282Frontier
Thu, Mar 5 - Sun, Mar 8
American Airlines Logo
2:47 pm - 10:59 pm
SJU
-
MKE
10h 12m2 stops
American Airlines Logo
6:37 pm - 10:40 am
MKE
-
SJU
15h 03m1 stop
$308American Airlines
Thu, Jan 29 - Thu, Feb 5
American Airlines Logo
1:24 pm - 11:35 pm
SJU
-
MKE
12h 11m2 stops
American Airlines Logo
6:10 am - 8:50 pm
MKE
-
SJU
12h 40m2 stops
$313American Airlines
Thu, Jan 22 - Mon, Jan 26
United Airlines Logo
2:05 am - 1:53 pm
SJU
-
MKE
13h 48m2 stops
United Airlines Logo
11:30 am - 9:00 pm
MKE
-
SJU
7h 30m1 stop
$325United Airlines
Fri, Feb 13 - Mon, Feb 16
American Airlines Logo
8:30 am - 5:47 pm
SJU
-
MKE
11h 17m2 stops
American Airlines Logo
7:00 am - 6:08 pm
MKE
-
SJU
9h 08m2 stops
$339American 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.

How much is a round-trip flight from San Juan Luis Munoz Marin Intl Airport to Milwaukee?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Juan Luis Munoz Marin Intl Airport to Milwaukee departing in January.

What’s the cheapest day of the week to fly from San Juan to Milwaukee?

The average price of all round-trip flights from San Juan Luis Munoz Marin Intl Airport to Milwaukee clicked on KAYAK for each day over the last 12 months.

For San Juan to Milwaukee, Thursday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Milwaukee back to San Juan, the best deals are generally found on Tuesday, with Thursday being the most expensive.

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 $297 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is $495 and $488 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 3 weeks before departure, which saves you about 11% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$92
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 29% 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 $92 for a one-way ticket and $199 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 $485 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 4255 reviews
8.1Boarding
8.0Comfort
7.5Entertainment
8.6Crew
7.0Food
Airline reviews

Okay, not wonderful. Short flight. Wi-fi didn't work properly. Stuck waiting for a gate to open upon arrival for 20 or so minutes.

4.0 OkayChad, Dec 2025
BNA - PNS
Read more Southwest reviews

Okay, not wonderful. Short flight. Wi-fi didn't work properly. Stuck waiting for a gate to open upon arrival for 20 or so minutes.

They sent a notice that they were boarding an hour early. We had to leave the club and run to the gate. They said sorry, that came from corporate and was a mistake. They did not have enough seating because the flight before it had not taken off on time. They moved our gate and delayed it for an hour.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

Still a fan of open seating. Flight was on schedule and arrived on time. The 737 MAX is very comfortable.

Airline travel is always too cramped to really be pleasant, but the cabin crew on this flight did a pretty good job of making up for it by putting on some music during boarding and sprinkling a few funny remarks into the safety briefing and announcements, and just generally being friendly and helpful. It definitely reminded me of why I prefer the in-flight experience on Southwest!

No delays and arrived to destination 30 min early. Staff was super friendly.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

It was rough. The staff was unprofessional, the choice of on board drinks terrible, it was cramped in space at every airport, they always ran out of overhead bin space so they pressured people to check bags for free or we couldn’t leave on the plane— so I did check my bag to help, and they nearly lost my bag. My bag did not arrive on the luggage belt, another man on my flight and I had to waste our time going to the baggage office to search for our bags. I would only fly southwest again if it was my last choice. Also, my flights were consistently delayed over and over again— at one point they straight up told us we were waiting for the pilot to arrive.

Crew could have been friendlier, maybe I'm spoiled by SW crews. In flight wifi was good. Would be nice to have more food offerings on a 4 plus hour flight

The plant way delayed departing by 3 hours. It was an old airplane with broken seats and armrests. The bathroom made a hollering sound. A really crappy flight experience and travel day all around.

Premium economy is like the forgotten class. Aside from meal service never saw a flight attendant. Any additional beverages required going to the very back of the plane to request and there was rarely an attendant there. Seat leg / foot rest hardly elevates and not well suite for someone under 5’6. Bulky armrests

Flight delays both to Detroits and return flight . The flight to Detroit was associated with mechanical difficulty

Flight was operated by Virgin Atlantic and it was up to their usual high standard. Minor grips about some issues, but they are really first world issues and as a whole, was an excellent flight.

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

Delta One upgrade it would have been great if my tray extended (it was jammed and wouldn’t pull out), seatbelt had too much slack & my little cabin door didn’t close properly

I paid for a business class ticket on Delta. It was sourced to Virgin Atlantic. They changed out the aircraft which had fewer upper class tickets. Even though I'd checked into the lounge, was receiving alerts via kayak about the delay and changes; no one informed me that the seat would be changed - until I attempted to board and was told that I would have an economy seat or they could search to put me on another airline. Even the flight crew were informed of this change (10 passengers were bumped out of Upper Class) around 2 pm (1400) time. Hours would have helped to consider alternatives instead of making a last minute change. There needs to be compensation from both Delta and Virgin given this change in service/experience.

Wasn't a Delta issue I don't think, but seems there was a Delta flight at each of the 2 Dallas airports at the same exact time, both to Atlanta. I was evidently booked on the one at Love Airport, but the Carey transport shuttle took me to DFW instead and I ended up missing the flight by just a few minutes. Was able to book a Southwest flight from Love Airport, but was a big loss of time and an inconvenience.

Every single flight that we got on was delayed by several hours or more. I honestly didn’t think we would get out of Atlanta because our flight was supposed to leave at 7:59 and it kept getting kicked back further and further. Delta stands for Don’t Ever Leave The Airport!

Great. I had to modify a flight. That was easy and free. Thank You

They did the one thing that really matters - got to Chicago early.

I liked the snacks and the flight attendants were friendly.

The flight was delayed for 1:30 hours for maintenance issues. They should give more information about connecting flights. For a Business Cabin the Crew was mediocre.

Very turbulent trip made it pretty bearable, plus the lack of refreshments served and the lack of any air conditioning before takeoff which took an hour or more.

Flight was late - I was downgraded from first class to coach

Not good - outbound flight was delayed and missed my connection even though I got to the gate after running through the airport - the agent would not let me on because the door was closed (flight had not left). There was no notification from United - overall experience was very disappointing. Additionally, I was downgraded from first class to coach on the alternative flight

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

Movie selection is good. Crew did not understand mileage program and were no help. Sick later. Food?

Staff on board was excellent. Positive upbeat helpful- like it used to be.

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

Great flight - friendly and attentive team! Seats in coach were comfy, but a little cramped - but that is the case with all airlines ;)

The boarding by groups is pointless. The first two groups worked fine, but almost Noone boarded in goups three thru five leaving the vast majority boarding when group six was called. It defeated the purpose of spreading out the crowd.

For whatever reason, the flight was not catered -we were told it would be a 45 minute delay waiting for catering - so no food. There were opened candy and peanuts in the seatback pocket. Flight landed early in DFW but due to the assigned gate not being available, we sat on the ground for 30 minutes waiting for the gate to open - making the flight actually arrive at the gate late.

The pilot greased the landing and the crew was fantastic.

I bought wifi and most of the flight could not even use it my apps would just spin. I couldn't even listen to music. super frustrating.

delayed due to weather. Could not communicate with family since the wifi was broken

Experience was good, however I had a delay due to weather happening and had to re purchase a seat on a new plane for a higher price (could be my own issue and misunderstanding) but other than that situation. First time flyer (by myself) was terrific!! The last from ORD to ALO didn't have wifi, but it was only 45 minutes so I'm sure that was part of the reason. Overall my experience was great! Next time I will remember to buy tickets with longer layovers. The delays really saved my overall anxiety. :)

Flight was on time is the only good thing. Person loading the plane called 1-6 to board at the same time, made it chaotic. Plane was too small for even putting backpacks in overhead. Seat for normal sized people were too small. The WIFI didn't work. When we landed had to wait because not enough ground crew.

Did not understand a single word the attendant said on the pa system. I was glad it was not an emergency.

Gate was overcrowded. Gate agents performed very well. Flight crew was top notch! Efficient & professional & courteous. Both meals not thermalized well. Dinner main dish was actually cold in the center. Almost inedible. Breakfast sandwich was lukewarm.

It’s Spirit need I say more? Thank this little airline because without it the other airlines would raise their prices so much I wouldn’t be able to fly anywhere. It’s affordable and gets you where you need to go! I’m not flying to get a free bag of chips, y’know?

Spirit cancelled the flight very late last night, I was on the way to the airport when I found out

First time in a decade I threw up on the flight, turbulence was terrible!! The staff were kinda rude at times.

Boarding was good, clearly explained and efficient. Staff were helpful, I would've liked a place to get coffee that wasn't Starbucks

I really liked the personalized treatment at the MDE airport, where someone from SPIRIT received me at the entrance of the counter line to ask if the weight of my luggage was accurate or if I wanted a better seat, gave me a name tag for my luggage and walked me to the counter. Thank you.

The most horrible flight ever not only Spirit delayed our flight 2 hours departure time for a 1 hour flight — that I could have driven FLL to TPA and spend less time on the road —- and they did the same on the return with 2-hr delay again!!! Then to top all, the rubber like and most unconfortable seats in the industry with no leg room!!! There should be an award for these kinds of companies measuring % of returning customers!!!

I can't rate food or entertainment when previously you know the lowest rate doesn't have any of that included. However I want to congratulate the crew and specially the flight attendants for their kindness and free smile even knowing is the end of a long day. I had the opportunity to chat to Hailey, Despise her busy job, she had the time to chat with me and even when she asked me to stop using my phone, not with words but with her sweet face expression, was as MasterCard said, a priceless moment. She even told me she learned from the best teacher, her Mom Ruth, a flight attendant working in the same flight, Definitely, with people like them, the real Americans, this country will overcome the worst moment in USA history falling in the hands of the biggest senil Psycho felon. God bless America!!!!

The flight was cancelled and Spirit said they could not rebook me on another flight for six days. They said they couldn't do anything for another six days.

Flight was on time, Newark staff, especially Nathan, very helpful, and plane crew to RDU very good without being pushy. We arrived early, and had a gentle landing.

See my last comment for the first leg. That should’ve been in here

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

Information on your arrival and departure airports