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MKE - SJU

$144 Find cheap flights from Milwaukee to San Juan

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 San Juan departing on 7/23. 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
0 bags
Sat 6/29
Sat 7/6

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Milwaukee to San Juan.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Milwaukee to San Juan.
In the last 7 days travelers have searched 42,686,544 times on KAYAK, and here is why:

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Cheap flight deals from Milwaukee to San Juan (MKE-SJU)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Milwaukee to San Juan 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 and deals for you by selecting your travel dates.
Choose your dates
6:00 am - 4:40 pmMKE-SJU
9h 40m2 stops
3:50 pm - 8:53 amSJU-MKE
18h 03m2 stops
$245American Airlines
Find Deal
Wed, Aug 21 - Wed, Sep 4
10:42 am - 11:59 pmMKE-SJU
12h 17m2 stops
2:10 am - 3:34 pmSJU-MKE
14h 24m2 stops
$287American Airlines
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Sat, Sep 7 - Fri, Sep 13
5:00 am - 2:49 amMKE-SJU
20h 49m1 stop
3:53 pm - 11:51 pmSJU-MKE
8h 58m1 stop
$292Spirit Airlines
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Wed, Aug 21 - Wed, Sep 4
5:00 am - 2:49 amMKE-SJU
20h 49m1 stop
1:00 am - 11:51 pmSJU-MKE
23h 51m1 stop
$302Spirit Airlines
Find Deal
Wed, Aug 21 - Tue, Sep 3
1:48 pm - 6:49 pmMKE-SJU
28h 01m1 stop
4:07 pm - 8:24 amSJU-MKE
17h 17m2 stops
$310Frontier
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Sun, Jun 9 - Thu, Jun 20
11:23 am - 3:01 pmMKE-SJU
26h 38m2 stops
4:07 pm - 8:24 amSJU-MKE
17h 17m2 stops
$322Frontier
Find Deal
Mon, Jun 17 - Thu, Jun 20
10:36 am - 8:55 pmMKE-SJU
8h 19m1 stop
2:05 am - 10:22 amSJU-MKE
10h 17m1 stop
$336United Airlines
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Tue, Nov 5 - Tue, Nov 19
1:30 pm - 11:59 pmMKE-SJU
8h 29m1 stop
2:11 pm - 11:59 pmSJU-MKE
11h 48m1 stop
$354Delta
Find Deal
Tue, Nov 5 - Wed, Nov 20
10:25 am - 11:03 pmMKE-SJU
10h 38m1 stop
8:15 am - 3:03 pmSJU-MKE
8h 48m1 stop
$374Delta
Find Deal
Wed, Nov 6 - Thu, Nov 21
5:00 am - 2:38 pmMKE-SJU
7h 38m1 stop
2:05 am - 10:22 amSJU-MKE
10h 17m1 stop
$378United Airlines
Find Deal
Sun, Nov 3 - Mon, Nov 18

Flights from Milwaukee to San Juan - Travel Insights & Trends

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

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

The average price of all flights from Milwaukee to San Juan Luis Munoz Marin Intl Airport clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to San Juan on a Tuesday and more expensive on a Friday. On your return trip to Milwaukee, you should consider flying back on a Thursday, and avoid Sundays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Milwaukee to San Juan Luis Munoz Marin Intl Airport, 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 San Juan Luis Munoz Marin Intl Airport is September, where tickets cost $311 on average. On the other hand, the most expensive months are December and March, where the average cost of tickets is $707 and $531 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Milwaukee to San Juan Luis Munoz Marin Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Milwaukee to San Juan Luis Munoz Marin Intl Airport, you should book around 1 day before departure. For the absolute cheapest price, our data suggests you should book 49 days before departure.

Which airlines provide the cheapest flights from Milwaukee to San Juan?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the past 3 days, the cheapest one-way tickets to San Juan from Milwaukee were found on Spirit Airlines ($144) and Frontier ($145), and the lowest round-trip tickets were found on American Airlines ($245) and Spirit Airlines ($292).

Good to know

Low season

September

High season

February

Cheapest flight

$144
Best time to beat the crowds with an average 30% drop in price.
Most popular time to fly and prices are also 20% lower on average.
Flight from Milwaukee to San Juan

When to book flights from Milwaukee to San Juan

Are your dates flexible? Find out the best times to travel from Milwaukee to San Juan 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 Milwaukee to San Juan flights

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

    In the last 3 days, the lowest price for a flight from Milwaukee to San Juan Luis Munoz Marin Intl Airport was $144 for a one-way ticket and $245 for a round-trip.

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

    Yes, you’ll need a passport to travel to San Juan from Milwaukee.

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

    On your way to San Juan, you’ll fly out from Milwaukee-Mitchell. You’ll be landing at San Juan Luis Munoz Marin Intl.

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

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

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

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

  • What is the most popular layover when flying to San Juan from Milwaukee?

    Charlotte is the most popular layover city among KAYAK users traveling from Milwaukee to San Juan.

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

    The two airlines most popular with KAYAK users for flights from Milwaukee to San Juan are Delta and JetBlue. With an average price for the route of $438 and an overall rating of 8.0, Delta is the most popular choice. JetBlue is also a great choice for the route, with an average price of $524 and an overall rating of 7.6.

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

    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 San Juan.

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

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

    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 San Juan with an airline and back to Milwaukee with another airline. Booking your flights between Milwaukee and SJU 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 Milwaukee to San Juan?

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

See more FAQs

Top 5 airlines serving from Milwaukee to San Juan

 
See real verified KAYAK customer reviews for airlines flying from Milwaukee to San Juan. 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 Milwaukee to San Juan? 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
DeltaOverall score based on 10457 reviews
8.6Crew
7.4Food
7.9Comfort
8.2Boarding
8.0Entertainment
Airline reviews

I've flown many many times on Northwest and then Delta. The crew on this flight were absolutely the best I've had the pleasure of being looked after by.

10.0 ExcellentAnonymous, May 2024MSP - YVR
Read more about Delta reviews

I've flown many many times on Northwest and then Delta. The crew on this flight were absolutely the best I've had the pleasure of being looked after by.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Awful. Flight was continuously getting delayed and gates kept changing without any reason. Flight was delayed for more then 3 hours

Paid premium for Delta only to be on safe but tired old 767 with ancient cabin in mediocre condition. Poor wifi and horrible inflight entertainment. Hardly a premium experience. Should have flown SW and had fun flight crew and no pretense

Our flight to Zurich was delayed by almost 3 hours, so we missed our next flight. There was no indication it would be delayed this much. We were told the gate had changed and then it apparently took over 2 hours to load the "catering" on the plane. We were not compensated in any way for the trouble.

Rated entertainment as Mediocre as there were major problems with the Infotainment system that took probably a half hour for them to fix.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

Half the bathrooms assigned to economy were out of action

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

The flight and boarding were easy peasy. I was traveling with my 4-year-old, so a smooth boarding experience was especially appreciated. My only piece of feedback is really about where our gate was in O'Hare. They've shoved four gates into a tiny corner of the B terminal and there isn't early enough room or seating for everyone. Not United's problem, but did dent the overall experience.

We liked the fully reclinable seats. Had center seats, so it was difficult to talk to spouse. Crew was great

Aisle chair was good and liked the foot bar preventing you from putting your foot in the isle, The breakfast on this international flight to Zurich was horrible (Europeans, specially, used to good food) may make this a dealbreaker for booking with United Airlines again. I agreed with my Spanish fellow passenger.

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

There was no screens on board AND the WiFi didn’t work. My seat was broken and couldn’t recline so I couldn’t even sleep. The flight attendants didn’t offer anything to make it more comfortable. It was such an old cramped plane, when the person in front of me reclined I couldn’t even open my tray table. All the United ads talk about guaranteeing everyone gets a screen!

The Wi-Fi was unavailable on this flight for some reason.

The flight was delayed almost 2 hours. Bad customer service etc. I will never fly Luthansa. Ever!!!

On time take off…US cabins look tired and need of refresh!

Fine. Though no food or entertainment so the survey needs to be updated with those options.

Backpack should NOT allowed put in the flight bin , only put it under the seat. I can't find space put my carry on luggage!!! and I pay for it ! that was very bad experience

very very tight seats unfriendly crew who do not seem to care about the comfort of their passengers and do not know how to smile poor ground staff support at LHR and PHX

The boarding process and flight were great. However, I waited about 40 minutes for my luggage. It did not come up on the designated belt. Instead, everyone’s bags were on a cart. Not sure what the issue was, but we were not informed until another passenger went looking for her bags and found them.

There were delays on both ends. It made it less than excellent. This plane was great though

AA1537 the AC was not working properly. It was very hot and uncomfortable.

So uncomfortable to sit in the tiny space on a long, international. Food was rough. Please, less white flour and processed food.

Worst experience flying American Airlines. I fly with them often, so I was super disappointed in the service I received at gate 30 in LGA on May 24, mid-day. The flight was delayed twice. I was patiently waiting in the American Airlines lounge when I received the notice on my app that the plane was boarding 45 minutes before its newly re-scheduled take off of 4 pm (from the orginal 1:45 pm then 3:00 pm). It took me 5 min to travel from the lounge to the gate and when I arrived there at 3:20 flight gate attendant told me the flight had closed and that they announced for passengers multiple times. I showed them the notification on my app and they were really rude and unempathetic. The person who rescheduled my flight at customer service wasn't any happier but was at least helpful in getting me on the next flight.

Flight was 1/2 hour delayed leaving Phoenix. Otherwise it was an average flight. Flight crew on this trip was very nice.

Our flight was delayed 2.5 hrs due to plane being too hot! After 1.5 hrs, airline decided to use another plane but had to wait for gate, baggage transfer & beverage transfer. Anyone could tell after first half hour that another plane was required and although did not affect us many would miss connecting flights at Heathrow. I have found the stewards are not the friendliest in the industry and the food is questionable, even as I like airplane food normally, the best of the 2 flights was the yogurt & granola for breakfast.

Everything was great except for the wifi was junk. Crew was super friendly and helpful

Was lucky to have a employee at the AA checkin counter that had compassion and understood they ordeal that we went through with our original flight being diverted, needing to stay in the aircraft and then flying to the original destination; adding hours to the trip and forcing us to miss our connection and our rebooked connection. She was able to get up on standby on the highest priority on the next flight to the closest airport we need to be at and it all worked out despite being many hours late.

This was the smoothest flight I have had in awhile. I was also offered an exit row seat for a great upgrade cost and was able to sleep almost thr whole flight due to comfort and a smooth flight. We left on time and arrived on time.

No food not even water offered unless you buy it and no usb in the seat but other than that everything was good

Because our flight from marsh Harbor to Fort Lauderdale was over three hours delayed it caused us to miss our flight in Fort Lauderdale. Because we missed that flight, it cost us nearly $100 apiece for four different travelers which totaled nearly $400. We are seeking a reimbursement for the flight that we missed in Fort Lauderdale Florida.

Flight expected to leave at 6:40 pm ended leaving at 8:00 am the following day. I slept in a cold airport. Never again Spirit for me…

Flight was cancelled just 6 days before. No more flights that day, and the following date was sold out. Had to obtain a refund and buy more expensive flights on another airline.

The flight was on time and nice as always for me with spirit but the cabin crew were not good. They left the lights on on a red eye for the entire flight.

This was the return leg of my journey with Spirit Airlines. Despite its reputation, I found no issues as it got me from point A to B safely and without delay, especially with no mechanical delays, which is fantastic in my book! The staff, from ground crew to cabin crew, were all pleasant and hassle-free. The flight was smooth from takeoff to landing. I have absolutely no complaints about this no-frills airline!

I got a one-way, last-minute nonstop flight from PDX to BWI for only $125. Yes, I got nicked $79 more for a checked suitcase and $89 more for the BIG SEAT option, but it was worth it, even with $4.50 for coffee and $10 for a snack (the latter no different than any other airline). The grand total was still less flying on any other airline.

It was the worst ever, i will be filing a lawsuit to get a refund. Our flight was delayed 4 hours so we would miss our connecting flight, we were not rebooked to our destination the same day, we were not offered any options to get home on the same day despite being clear that we absolutely cannot get stranded at night due to family, we were forced to book our own flights on a different airline to get home, and spririt is refusing a refund because our flight wasn't cancelled, only delayed. oh yeah, and they lost our luggage on the first part of the trip and you cannot get a hold of customer service when anything goes wrong, on hold for 30+ minutes. and their app breaks so you can't use that either.

This recognisable no-frills airline gets me from point-A to point-B. I was able to get to Chicago without stress. The checked baggage collection and reclaim could be improved.

I am very disappointed with Frontier Airlines. They cancelled our flight because they couldn't find a crew member, and then didn't get us to our connecting flight. We had to cancel our whole vacation. We were promised flight and hotel vouchers, but they never sent them.

9hrs delay and didn’t provided anything until after flight landed $75 voucher for fiuture travel no meals or anything.

It was ridiculously hard to check in for the flight, and Frontier charged us a LOT of money to have a carry on suitcase, and then told everyone we could not carry on bags and had to check them through at the gate, and didn't refund the extra money we paid to have the suitcase as carry on.

I had a terrible experience with Frontier. I arrived before the 60 minute cut off and was told that Frontier has a two hour window for bags. I was then told the next available flight wasn’t until the end of the day (I had booked a 6am flight). I took a look around and saw other people being told that they could not board their flights or that they had to pay additional fees. I opted to rebook on American Airlines. There’s absolutely no straightforward way to contact Frontier, so this ticket was a complete waste of money. Oh - and the kicker is that the lady lied about the two hour cut off.

Frontier won’t help you at the airport without paying $25. Carry on was $75. Then you get on the plain and every beverage or snack is also a charge. Seats are hard and real packed in. I would never fly them again.

Worst experience I have seen. The flight was cancelled without any reason.

My experience with frontier staff at the Denver airport was absolutely horrible. The manager on duty was even worst if was the worst experience I have ever had, I have never been treated so poorly as a customer in my life! The staff was extremely rude, eye rolls and attitude and then refusal to help me at all. I wish I could never fly frontier again that’s how horrible it was!

The Frontier app wasn’t working. So I could not pay for a carry on the week prior to flying. They charged me 99$ at the gate to carry on a duffle bag.

Good for the price. My only complaint is that the pilot should keep the air flowing while passengers are waiting to getting out of airplane.

Plane could have been more on time. More leg room .

Book cheap flights from Milwaukee to San Juan

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Milwaukee to San Juan found on KAYAK in the last 72 hours.
7/23Tue
1 stopSpirit Airlines
8h 03mMKE-SJU
$144
7/18Thu
1 stopFrontier
8h 57mMKE-SJU
$145
7/6Sat
1 stopAmerican Airlines
15h 31mMKE-SJU
$148
7/23Tue
2 stopsSpirit Airlines
13h 28mMKE-SJU
$159
7/6Sat
2 stopsFrontier
27h 00mMKE-SJU
$163
7/22Mon
2 stopsAmerican Airlines
15h 33mMKE-SJU
$174
7/6Sat
1 stopDelta
10h 03mMKE-SJU
$177
7/31Wed
1 stopDelta
7h 00mMKE-SJU
$197
11/25Mon
1 stopUnited Airlines
8h 19mMKE-SJU
$210
7/19Fri
1 stopSun Country Air
19h 48mMKE-SJU
$222

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Last minute flights from Milwaukee to San Juan

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Milwaukee to San Juan that are departing in the next 10 days.
6/2Sun
multi-stopFrontier
15h 49mMKE-SJU
6/3Mon
multi-stopFrontier
27h 38mSJU-MKE
$377
6/1Sat
multi-stopSpirit Airlines
18h 41mMKE-SJU
6/7Fri
multi-stopSpirit Airlines
12h 47mSJU-MKE
$513
6/1Sat
multi-stopSpirit Airlines
18h 41mMKE-SJU
6/6Thu
multi-stopSpirit Airlines
21h 24mSJU-MKE
$525
6/1Sat
multi-stop
10h 39mMKE-SJU
6/7Fri
multi-stop
17h 31mSJU-MKE
$583
6/2Sun
multi-stopSpirit Airlines
19h 44mMKE-SJU
6/3Mon
multi-stopSpirit Airlines
27h 44mSJU-MKE
$592
6/1Sat
multi-stopAmerican Airlines
8h 40mMKE-SJU
6/7Fri
multi-stopAmerican Airlines
12h 52mSJU-MKE
$593
6/1Sat
multi-stopSpirit Airlines
19h 56mMKE-SJU
6/7Fri
multi-stopSpirit Airlines
32h 19mSJU-MKE
$598
6/2Sun
multi-stopAmerican Airlines
12h 50mMKE-SJU
6/3Mon
multi-stopAmerican Airlines
12h 15mSJU-MKE
$608
6/1Sat
multi-stopSpirit Airlines
42h 15mMKE-SJU
6/7Fri
multi-stopSpirit Airlines
32h 19mSJU-MKE
$635
6/2Sun
multi-stopJetBlue
7h 53mMKE-SJU
6/2Sun
multi-stopJetBlue
8h 43mSJU-MKE
$900

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Milwaukee - San Juan Flights

Departure:

Milwaukee (MKE)United States

Destination:

San Juan (SJU)Puerto Rico

Return flight deals:

San Juan - Milwaukee

Cabin classes: