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MKE - SJU

$80 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 8/19. 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
Fri 7/12
Fri 7/19

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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 44,148,666 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
1:57 pm - 6:49 pmMKE-SJU
27h 52m1 stop
4:07 pm - 8:05 pmSJU-MKE
28h 58m2 stops
$310Frontier
Find Deal
Thu, Jun 27 - Thu, Jul 4
2:20 pm - 2:08 amMKE-SJU
10h 48m1 stop
3:50 am - 1:34 pmSJU-MKE
10h 44m1 stop
$311Spirit Airlines
Find Deal
Wed, Aug 21 - Sun, Aug 25
5:45 am - 1:51 pmMKE-SJU
7h 06m1 stop
5:30 pm - 11:57 pmSJU-MKE
7h 27m1 stop
$312Spirit Airlines
Find Deal
Tue, Jul 16 - Thu, Jul 18
2:20 pm - 2:47 amMKE-SJU
11h 27m1 stop
7:54 pm - 1:34 pmSJU-MKE
18h 40m2 stops
$314Spirit Airlines
Find Deal
Wed, Aug 21 - Mon, Aug 26
10:37 am - 11:12 pmMKE-SJU
11h 35m1 stop
6:30 am - 11:59 pmSJU-MKE
18h 29m2 stops
$321American Airlines
Find Deal
Fri, Aug 16 - Mon, Aug 19
7:05 am - 4:44 pmMKE-SJU
8h 39m1 stop
5:55 pm - 12:07 amSJU-MKE
7h 12m1 stop
$354Delta
Find Deal
Sat, Aug 31 - Tue, Sep 3
1:00 pm - 12:15 amMKE-SJU
10h 15m1 stop
5:55 pm - 12:07 amSJU-MKE
7h 12m1 stop
$374Delta
Find Deal
Fri, Aug 9 - Tue, Aug 13
9:55 am - 7:01 pmMKE-SJU
8h 06m1 stop
5:01 am - 2:54 pmSJU-MKE
10h 53m1 stop
$416JetBlue
Find Deal
Wed, Jul 10 - Wed, Jul 17
9:55 am - 7:01 pmMKE-SJU
8h 06m1 stop
5:01 am - 2:55 pmSJU-MKE
10h 54m1 stop
$430JetBlue
Find Deal
Tue, Jul 9 - Thu, Jul 18
8:35 am - 11:57 pmMKE-SJU
14h 22m2 stops
1:05 am - 3:13 pmSJU-MKE
15h 08m2 stops
$480United Airlines
Find Deal
Sat, Sep 7 - Fri, Sep 13

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 Saturdays 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 American Airlines ($80) and Spirit Airlines ($134), and the lowest round-trip tickets were found on Frontier ($310) and Spirit Airlines ($311).

Good to know

Low season

September

High season

February

Cheapest flight

$80
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 $80 for a one-way ticket and $310 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 $522 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 10000 reviews
7.4Food
7.9Comfort
8.6Crew
8.2Boarding
8.0Entertainment
Airline reviews

It was very cold because the air conditioner was on high power, and my son got sick.

4.0 OkayAnonymous, Jun 2024ORD - SEA
Read more about Delta reviews

It was very cold because the air conditioner was on high power, and my son got sick.

3 hours late and all they have is was a $12 meal voucher. That’s not even enough to cover fast food.

Among the poorest flights I’ve had with Delta in a while. Entertainment system failed completely on a 7.5 hr flight. Crew seemed distracted and not the normal friendly crew. Flight overbooked it seemed… very crowded.

If I can, I always fly Delta. I’ve found their service to always be reliable and pleasant.

You could have not cancelled the flight (AA, which I will be flying from now on) left for BOS despite the fictitious weather issues (that no one in my Boston family could see). You could have rebooked my direct flight to another direct flight instead of sending me though JFK, the worst US airport after O’Hara You could have rebooked me on a Main Cabin seat (like the one I paid for in my original ticket instead of putting me a the last row on JFK->BOS leg, pocketing the difference in ticket price But I do not really care whether you will ever do that in a future because in a future neither I nor anyone from my company (unless they pay out of pocket) nor an of my clients and partners (if they heed my advice) will ever be caught dead on any of Delta flights

Really bad baggage handling. Had my Rimowa bag badly damaged at the latches.

It was pretty good I was worried with the short Layover that I might not catch my connection but the gate was there

It was good until there was a 3 hour delay because there was not any pilots to fly the plane.

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Friendly flight attendants. Comfort plus seats were very comfortable and had lots of leg room. 10A and 10 B.

The entertainment wasn’t playing in the app or online.

Lady was a bit rude during boarding and I was being nice to her.

Why does it have to be painful to fly long distances?

It is a modern tragedy that any airline expects you to travel for 14 hours in such discomfort and that the only way to add comfort is exorbitant prices. I was in pain by the time we landed. Shameful.

Original plane sidelined. Had to wait an hour for replacement.

Crew was very cooperative and professional. Passenger's first checked in bag should be free.

No real agent onsite helping you for missing luggage there. Not like the other airline next to UA desk, they have staff attending in their desk assisting answer/helping luggage issue, even after midnight.

Horrible, the flights kept delaying, so it is obvious that we won't be able to make it to the next connection. No easier/real agent on site to help you figure this out. UA agent on other counters refuse to assist you and direct us to use the QR code/call customer service. So inefficient and poor. While technology seems convenient, but it's not the best interest/experience for customers need help while there is active issue need assistance.

Food is very bad and entertint not too many options ... flight attendet service is not good

After the morning frenzy of 35 min wait through CLT security at 4;30 AM, it was nice to have a smooth pleasant boarding experience. This 6:30 AM flight was not full. We were able to get seated swiftly and took off promptly. Nice touch they distributed the old fashioned headsets with 8 mm jacks. Snacks were decent and arrival was uneventful.

Seats are weirdly bent, I felt hunched the entire time.

Nothing exceptional. No drink of any type, even in first class was provided for the hour and half trip.

Paid for premium economy had no tv the whole time the crew tried to reset/reboot but would not work they said they would put a trouble ticket in for it. We had 3 seats my tv was the only one that didn't work. They cancelled our flight re worked us on another that left us at airport over night on the floor I have a ten year old and a 78 diabetic mother which also had shingles and suffers from nerve pain in legs and back. Requested wheelchair service at all airports after the re route NO wheelchair service was there to help. WORST experience we have ever had. Went to American airlines assistance it was closed. I AM FURIOUS!!! I expect some sort of compensation from this traumatic experience and no need for flying points we don't plan on using American airlines again!!!!

This is by far the worst experience I have had with American Airlines. The start of this trip was a complete disaster. I purposely planned my trip so that I would weather any delays so that I could make very important meeting at the Pentagon. My flight was cancelled because of maintenance and I was put on the first flight the next day but I was late to the meeting. After a long week at the Pentagon I just wanted to go home and my flight home which was early in the day was delayed. Eventually the flight was delayed until the next day. I was not authorized a hotel room because DCA was my point of origin. So I paid for a hotel out of pocket. The flight this morning was boarded then deplaned because the aircraft was hot. The flow of information was not happening in DCA and made it worse when the news was bad. I am going to take a break from American for my next few military flights. Hopefully whatever has been going on with American Airlines will be resolved.

We had a 2 hour delay. The seats were smaller than most other airlines. The person in front of us wanted to lay back and we had to stop her because she was pressing against my girlfriend’s legs. We had to ask her to sit up and not lay back due to the lack of room.

Information when booking said the flight would be with American Airlines but the flight was actualy with British Airways. Check in from Orlando was nice and quick. I agreed to put my cabin case in the checked luggage as it was a full flight. Case came back damaged (unable to put the handle down) so will have to dispose of it. Seats were quite cramped with very little leg room, even for economy. This was the experience of both the outgoing and return flight. Cabin crew were ok and flight time was punctual.

Everything was fine once we actually got on our flight. It was more then annoying they canceled (delayed) our flight. We lost out on a day of our trip along with money on our stay. Plus we had to book another hotel. So expensive.

This flight was canceled and delayed several times without explanation. The plane was freezing cold and no wifi for messaging. Getting off the plane was terribly unorganized and felt like it took forever….

The flight was delayed several times without explanation. The seats were terribly uncomfortable and wifi isn’t included. All these make for a less than ideal flight.

The flights was delayed by hours and it was the firmest landing I have experienced in my life. My back is still sore.

Poor response to delay, getting on plane, off plane and back on again

My flight was uncomfortable and crammed. There were no pockets to store things, I couldn’t move my seat back slightly. Beverages including soda cost extra. My husband flew on another spirit airline flight, which was delayed a total of 48 hours, only to be canceled.

Two delays in less than 24hrs. They need to improve everything and restructure the whole company.

Terrible leg room, seats don’t recline, delayed flight, and even water isn’t free onboard

Flight was canceled less than 6 hours before takeoff, rebooked on a flight that was twice as long and left earlier so we couldn’t make it, when using text support option took over 2 hours to speak with someone.

Not enough help at airport during boarding process. Flight was delayed. Overall WORST flying experience I’ve ever had. Will NEVER FLT SPIRIT AGAIN

Terrible legroom, seats do not recline, tray table the size of an iPhone, delayed flight, have to pay 5$ to get a cup of water onboard.

Could have TV/Movie and some water ou soda free

Flight was good and clean but delayed over an hour on the return flight.

The non stop flight and able to go into Atlantic City airport. They could lower the prices. It starts out low but then if you want to bring luggage and pick your seat the price goes up quite a bit.

I did not enjoy the trip home on Frontier for several reasons: there is too much cost besides the flight, which was more than I would normally pay, then having to pay for luggage, and carry-on, seat (if you want to reserve when booking) then you must pay over $3 for a can of soda, and $4 for a snack. A cup of water is free.

Did not realize seats did not recline. Best to travel in an exit row... No question

I strongly dislike Frontier. I find them barebones, the seats not particularly comfortable, the nickel and diming is maddening, the app is TERRIBLE - super confusing to navigate, and the last 4 frontier flights I have flown have been on AVERAGE 2 hours late, one ruining a fancy night out in Vegas with reservations made well in advance, which was nodded to with a measly 5000 miles, which translates to almost nothing. At least credit a free checked bag or something.

8 hr delay. had to buy another ticket with another airline

Four and a half hour delay in total. What frustrates me most is the poor communication and disorganization.

I appreciated the upgrade to free cary-on bag and seat selection at no charge

FRONTIER SUCKS! The agent downstairs tricked me into booking, just to get to the gate. At the gate, they told me they couldn't help. I then called Customer Service. They and the gate attendants kept blaming each other. Neither side was willing to help the customer.

The agent at check-in was strident, unwelcoming, and condescending to customers ahead of me.

Flight was delay 9hrs and nothing was provided at airport, had to go and get a room to sleep in, paid for Uber back and fort with no offers until we landed back home a 1hr later for a $75 voucher for a future flight.

Didn't like anything..entire crew was very rude to everyone on the flight. Plane old and the trays fall down on you the while time you're flying. Charged more for a carry on bag than for the plane ticket itself. Did make it from point a to point b, but worth the extra money to fly with another airline

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.
8/19Mon
2 stopsAmerican Airlines
9h 45mMKE-SJU
$80
7/23Tue
1 stopSpirit Airlines
7h 06mMKE-SJU
$134
7/16Tue
1 stopSpirit Airlines
7h 06mMKE-SJU
$135
7/23Tue
2 stopsSpirit Airlines
12h 30mMKE-SJU
$139
8/19Mon
1 stopAmerican Airlines
7h 45mMKE-SJU
$145
6/16Sun
1 stopFrontier
23h 00mMKE-SJU
$147
7/9Tue
2 stopsAmerican Airlines
19h 56mMKE-SJU
$151
6/24Mon
2 stopsFrontier
26h 38mMKE-SJU
$152
6/18Tue
1 stopDelta
10h 21mMKE-SJU
$177
6/18Tue
1 stopDelta
10h 21mMKE-SJU
$202

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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.
6/15Sat
multi-stopSpirit Airlines
10h 21mMKE-SJU
6/25Tue
multi-stopSpirit Airlines
28h 51mSJU-MKE
$436
6/15Sat
multi-stopSpirit Airlines
10h 21mMKE-SJU
6/25Tue
multi-stopSpirit Airlines
17h 57mSJU-MKE
$487
6/13Thu
multi-stop
8h 36mMKE-SJU
6/19Wed
multi-stop
26h 29mSJU-MKE
$519
6/14Fri
multi-stopJetBlue
10h 07mMKE-SJU
6/17Mon
multi-stopJetBlue
11h 25mSJU-MKE
$591
6/13Thu
multi-stopAmerican Airlines
9h 59mMKE-SJU
6/19Wed
multi-stopAmerican Airlines
16h 39mSJU-MKE
$604
6/14Fri
multi-stopAmerican Airlines
10h 54mMKE-SJU
6/16Sun
multi-stopAmerican Airlines
12h 28mSJU-MKE
$614
6/13Thu
multi-stop
21h 10mMKE-SJU
6/20Thu
multi-stop
19h 01mSJU-MKE
$648
6/14Fri
multi-stopJetBlue
10h 07mMKE-SJU
6/16Sun
multi-stopJetBlue
8h 55mSJU-MKE
$655
6/15Sat
multi-stopUnited Airlines
14h 12mMKE-SJU
6/21Fri
multi-stopUnited Airlines
10h 10mSJU-MKE
$809
6/14Fri
multi-stopUnited Airlines
17h 42mMKE-SJU
6/15Sat
multi-stopUnited Airlines
10h 10mSJU-MKE
$864

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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: