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Cheap flights from Milwaukee to San Juan from $88

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Milwaukee to San Juan departing on 5/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Milwaukee to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:43 am - 11:29 pm
MKE
-
SJU
13h 46m
1 stop
Frontier Logo
6:05 pm - 7:58 am
SJU
-
MKE
14h 53m
1 stop
$286Frontier
Sun, Jun 14 - Wed, Jun 17
Frontier Logo
9:56 am - 2:08 am
MKE
-
SJU
15h 12m
1 stop
Frontier Logo
3:03 am - 9:01 am
SJU
-
MKE
6h 58m
1 stop
$291Frontier
Tue, May 5 - Mon, May 11
Frontier Logo
9:56 am - 2:08 am
MKE
-
SJU
15h 12m
1 stop
Frontier Logo
6:00 am - 9:01 am
SJU
-
MKE
28h 01m
1 stop
$295Frontier
Tue, May 12 - Sat, May 16
Frontier Logo
8:46 am - 2:08 am
MKE
-
SJU
16h 22m
1 stop
Frontier Logo
6:05 pm - 7:58 am
SJU
-
MKE
14h 53m
1 stop
$312Frontier
Thu, Jun 4 - Wed, Jun 10
Frontier Logo
8:46 am - 8:04 am
MKE
-
SJU
22h 18m
1 stop
Frontier Logo
6:05 pm - 7:58 am
SJU
-
MKE
14h 53m
1 stop
$325Frontier
Thu, May 28 - Wed, Jun 10
Delta Logo
12:40 pm - 11:35 pm
MKE
-
SJU
9h 55m
1 stop
Delta Logo
1:14 pm - 8:01 pm
SJU
-
MKE
7h 47m
1 stop
$326Delta
Sat, May 16 - Sat, May 23
Frontier Logo
8:46 am - 2:08 am
MKE
-
SJU
16h 22m
1 stop
Frontier Logo
8:13 pm - 8:01 am
SJU
-
MKE
12h 48m
1 stop
$329Frontier
Thu, May 28 - Sat, Jun 6
Frontier Logo
12:21 pm - 9:23 am
MKE
-
SJU
20h 02m
1 stop
Frontier Logo
3:21 am - 11:26 am
SJU
-
MKE
9h 05m
1 stop
$331Frontier
Thu, Apr 30 - Sun, May 3
Multiple Airlines Logo
9:56 am - 2:08 am
MKE
-
SJU
15h 12m
1 stop
Multiple Airlines Logo
7:50 pm - 7:51 am
SJU
-
MKE
13h 01m
1 stop
$332Multiple Airlines
Sun, May 17 - Fri, May 22
Frontier Logo
9:56 am - 1:15 pm
MKE
-
SJU
26h 19m
1 stop
Frontier Logo
3:33 pm - 9:01 am
SJU
-
MKE
18h 28m
1 stop
$334Frontier
Tue, May 12 - Mon, May 18

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Delta flights from Milwaukee to San Juan Luis Munoz Marin Intl Airport

Our best Delta deals on Milwaukee to San Juan Luis Munoz Marin Intl Airport flight tickets
Delta
May 16
MKE12:40 pmMilwaukee-Mitchell
9h 55m
1 stop
SJU11:35 pmSan Juan Luis Munoz Marin Intl
May 23
SJU1:14 pmSan Juan Luis Munoz Marin Intl
7h 47m
1 stop
MKE8:01 pmMilwaukee-Mitchell
$326
Delta
Jun 30
MKE12:56 pmMilwaukee-Mitchell
8h 31m
1 stop
SJU10:27 pmSan Juan Luis Munoz Marin Intl
Jul 10
SJU2:05 pmSan Juan Luis Munoz Marin Intl
7h 15m
1 stop
MKE8:20 pmMilwaukee-Mitchell
$387
Delta
Apr 25
MKE6:30 amMilwaukee-Mitchell
7h 30m
1 stop
SJU3:00 pmSan Juan Luis Munoz Marin Intl
May 2
SJU12:55 pmSan Juan Luis Munoz Marin Intl
12h 02m
1 stop
MKE11:57 pmMilwaukee-Mitchell
$490

Frontier flights from Milwaukee to San Juan Luis Munoz Marin Intl Airport

Our best Frontier deals on Milwaukee to San Juan Luis Munoz Marin Intl Airport flight tickets
Frontier
Jun 14
MKE8:43 amMilwaukee-Mitchell
13h 46m
1 stop
SJU11:29 pmSan Juan Luis Munoz Marin Intl
Jun 17
SJU6:05 pmSan Juan Luis Munoz Marin Intl
14h 53m
1 stop
MKE7:58 amMilwaukee-Mitchell
$286
Frontier
May 5
MKE9:56 amMilwaukee-Mitchell
15h 12m
1 stop
SJU2:08 amSan Juan Luis Munoz Marin Intl
May 11
SJU3:03 amSan Juan Luis Munoz Marin Intl
6h 58m
1 stop
MKE9:01 amMilwaukee-Mitchell
$291
Frontier
May 12
MKE9:56 amMilwaukee-Mitchell
15h 12m
1 stop
SJU2:08 amSan Juan Luis Munoz Marin Intl
May 16
SJU6:00 amSan Juan Luis Munoz Marin Intl
28h 01m
1 stop
MKE9:01 amMilwaukee-Mitchell
$295

momondo Fare Finder

 
Customize your flight search to find flights from Milwaukee to San Juan Luis Munoz Marin Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated April 18, 2026.
Use the filters below to find and compare flights from Milwaukee to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sun 6/14

8:43 am-11:29 pm

1 stop13h 46m

San Juan Luis Munoz Marin Intl

Wed 6/17

6:05 pm-7:58 am

1 stop14h 53m

$286

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Tue 5/5

9:56 am-2:08 am

1 stop15h 12m

San Juan Luis Munoz Marin Intl

Mon 5/11

3:03 am-9:01 am

1 stop6h 58m

$291

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Tue 5/12

9:56 am-2:08 am

1 stop15h 12m

San Juan Luis Munoz Marin Intl

Sat 5/16

6:00 am-9:01 am

1 stop28h 01m

$295

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Thu 6/4

8:46 am-2:08 am

1 stop16h 22m

San Juan Luis Munoz Marin Intl

Wed 6/10

6:05 pm-7:58 am

1 stop14h 53m

$312

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Thu 5/28

8:46 am-8:04 am

1 stop22h 18m

San Juan Luis Munoz Marin Intl

Wed 6/10

6:05 pm-7:58 am

1 stop14h 53m

$325
Quickest round-trip

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sat 5/16

12:40 pm-11:35 pm

1 stop9h 55m

San Juan Luis Munoz Marin Intl

Sat 5/23

1:14 pm-8:01 pm

1 stop7h 47m

$326

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Thu 5/28

8:46 am-2:08 am

1 stop16h 22m

San Juan Luis Munoz Marin Intl

Sat 6/6

8:13 pm-8:01 am

1 stop12h 48m

$329

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Thu 4/30

12:21 pm-9:23 am

1 stop20h 02m

San Juan Luis Munoz Marin Intl

Sun 5/3

3:21 am-11:26 am

1 stop9h 05m

$331

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sun 5/17

9:56 am-2:08 am

1 stop15h 12m

San Juan Luis Munoz Marin Intl

Fri 5/22

7:50 pm-7:51 am

1 stop13h 01m

$332

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Tue 5/12

9:56 am-1:15 pm

1 stop26h 19m

San Juan Luis Munoz Marin Intl

Mon 5/18

3:33 pm-9:01 am

1 stop18h 28m

$334

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Juan from

How to get the cheapest flight ticket from Milwaukee to San Juan Luis Munoz Marin Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Milwaukee and San Juan Luis Munoz Marin Intl Airport?

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

If you aren’t able to travel to San Juan Luis Munoz Marin Intl Airport during the month of September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $315.

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

You are more likely to see cheaper flights to San Juan Luis Munoz Marin Intl Airport from Milwaukee when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan Luis Munoz Marin Intl Airport for around $444 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan Luis Munoz Marin Intl Airport from Milwaukee for as low as $337 on momondo.

How have Milwaukee to San Juan Luis Munoz Marin Intl Airport flight prices changed over time?

As of April 2026, prices for Milwaukee to San Juan Luis Munoz Marin Intl Airport flights are approximately 59% more expensive when compared to flights at the same time last year.

When to book flights from Milwaukee to San Juan Luis Munoz Marin Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Milwaukee to San Juan Luis Munoz Marin Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Milwaukee to San Juan Luis Munoz Marin Intl Airport (MKE to SJU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Milwaukee to San Juan Luis Munoz Marin Intl Airport

Fastest flight time

6h 14m

Direct flights

None
The fastest flight from Milwaukee to San Juan Luis Munoz Marin Intl Airport takes 6h 14m
There are no direct flights from Milwaukee to San Juan Luis Munoz Marin Intl Airport. There are no popular flight routes from Milwaukee to San Juan Luis Munoz Marin Intl Airport.
Search flight deals

Frequently asked questions about flying from Milwaukee to San Juan Luis Munoz Marin Intl Airport

  • How far is Milwaukee-Mitchell to San Juan Luis Munoz Marin Intl by plane?

    The distance between Milwaukee-Mitchell and San Juan Luis Munoz Marin Intl is about 2124.9 mi. Typically, this will take 6h 14m by plane in normal conditions.

  • When did momondo last update prices for flights from Milwaukee-Mitchell Airport to San Juan Luis Munoz Marin Intl Airport?

    Prices for flights from Milwaukee-Mitchell Airport to San Juan Luis Munoz Marin Intl Airport refresh daily.

  • How many operators does momondo search for flights from Milwaukee-Mitchell Airport to San Juan Luis Munoz Marin Intl Airport?

  • How old do you have to be to fly from Milwaukee-Mitchell Airport to San Juan Luis Munoz Marin Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Milwaukee-Mitchell Airport to San Juan Luis Munoz Marin Intl Airport.

  • What documentation or ID do you need to fly to San Juan Luis Munoz Marin Intl Airport?

    The travel and health documents required for your trip to San Juan Luis Munoz Marin Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Juan Luis Munoz Marin Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Milwaukee to San Juan Luis Munoz Marin Intl Airport?

Best airlines flying from Milwaukee to San Juan Luis Munoz Marin Intl Airport

Compare and see reviews for airlines that fly from Milwaukee to San Juan Luis Munoz Marin Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $112Free CancellationRating
7.9
8,421 reviews
Search Delta flights
FrontierPriceFrom $156Free CancellationRating
5.7
2,987 reviews
Search Frontier flights
United AirlinesPriceFrom $202Free CancellationRating
7.4
9,604 reviews
Search United Airlines flights
Spirit AirlinesPriceFrom $219Free CancellationRating
6.3
8,621 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $256Free CancellationRating
7.1
11,599 reviews
Search American Airlines flights
SouthwestPriceFrom $315Free CancellationRating
8.0
4,331 reviews
Search Southwest flights

Traveling to a place near San Juan?

Book flights to San Juan if you plan to visit one of these locations
Carolina
Fajardo
Dorado
Luquillo
Caguas
Rio Grande
Humacao
Bayamón

Why use momondo?

Why should I use momondo to find a flight deal from Milwaukee to San Juan?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Milwaukee to San Juan. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Milwaukee to San Juan with flexible booking policies on momondo?

momondo does allow users to show only those flights to San Juan from Milwaukee which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Milwaukee to San Juan?

momondo provides multiple filters to help you find the best flight to San Juan from Milwaukee. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Milwaukee to San Juan right now. Can momondo alert me if prices change?

If you are simply researching potential flights to San Juan, momondo offers a useful price alert feature which will track prices for flights to San Juan from Milwaukee and alert you when they change.

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