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Cheap flights from Milwaukee to San Juan from $87

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 2/7. 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

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Find the cheapest flights from Milwaukee to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
8:00 am - 8:39 pm
MKE
-
SJU
10h 39m
1 stop
American Airlines Logo
2:23 pm - 11:14 pm
SJU
-
MKE
10h 51m
1 stop
$236American Airlines
Wed, Feb 25 - Wed, Mar 4
Frontier Logo
8:11 pm - 9:54 am
MKE
-
SJU
11h 43m
1 stop
Frontier Logo
3:53 am - 9:43 am
SJU
-
MKE
7h 50m
1 stop
$237Frontier
Mon, Feb 23 - Thu, Feb 26
Frontier Logo
7:01 pm - 11:59 pm
MKE
-
SJU
26h 58m
1 stop
Frontier Logo
11:34 am - 10:17 am
SJU
-
MKE
24h 43m
1 stop
$238Frontier
Mon, Jan 26 - Fri, Jan 30
Frontier Logo
4:39 pm - 2:53 am
MKE
-
SJU
8h 14m
1 stop
Frontier Logo
5:25 pm - 6:42 pm
SJU
-
MKE
27h 17m
1 stop
$239Frontier
Wed, Feb 18 - Wed, Feb 25
Frontier Logo
12:36 pm - 1:58 am
MKE
-
SJU
12h 22m
1 stop
Frontier Logo
11:07 am - 5:50 pm
SJU
-
MKE
7h 43m
1 stop
$241Frontier
Mon, Mar 9 - Tue, Mar 17
Frontier Logo
7:13 pm - 10:24 am
MKE
-
SJU
13h 11m
1 stop
Frontier Logo
8:00 am - 6:06 pm
SJU
-
MKE
12h 06m
1 stop
$243Frontier
Thu, Jan 29 - Mon, Feb 2
Frontier Logo
12:36 pm - 1:58 am
MKE
-
SJU
12h 22m
1 stop
Frontier Logo
3:08 am - 11:41 am
SJU
-
MKE
9h 33m
1 stop
$246Frontier
Mon, Mar 9 - Sun, Mar 15
United Airlines Logo
8:00 am - 9:26 pm
MKE
-
SJU
11h 26m
1 stop
United Airlines Logo
4:52 pm - 10:28 pm
SJU
-
MKE
7h 36m
1 stop
$256United Airlines
Wed, Feb 25 - Wed, Mar 4
Frontier Logo
4:39 pm - 2:53 am
MKE
-
SJU
8h 14m
1 stop
Frontier Logo
3:53 am - 7:40 am
SJU
-
MKE
29h 47m
1 stop
$259Frontier
Wed, Feb 11 - Tue, Feb 17
Frontier Logo
4:39 pm - 2:53 am
MKE
-
SJU
8h 14m
1 stop
Frontier Logo
3:08 am - 7:30 am
SJU
-
MKE
29h 22m
1 stop
$260Frontier
Wed, Mar 4 - Tue, Mar 10

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
Mar 24
MKE1:21 pmMilwaukee-Mitchell
8h 51m
1 stop
SJU11:12 pmSan Juan Luis Munoz Marin Intl
Mar 31
SJU1:17 pmSan Juan Luis Munoz Marin Intl
7h 49m
1 stop
MKE8:06 pmMilwaukee-Mitchell
$315
Delta
Feb 24
MKE5:25 amMilwaukee-Mitchell
7h 07m
1 stop
SJU2:32 pmSan Juan Luis Munoz Marin Intl
Feb 25
SJU6:37 pmSan Juan Luis Munoz Marin Intl
7h 10m
1 stop
MKE11:47 pmMilwaukee-Mitchell
$320
Delta
Jan 25
MKE12:17 pmMilwaukee-Mitchell
9h 28m
1 stop
SJU11:45 pmSan Juan Luis Munoz Marin Intl
Feb 6
SJU2:15 pmSan Juan Luis Munoz Marin Intl
8h 43m
1 stop
MKE8:58 pmMilwaukee-Mitchell
$338

American Airlines flights from Milwaukee to San Juan Luis Munoz Marin Intl Airport

Our best American Airlines deals on Milwaukee to San Juan Luis Munoz Marin Intl Airport flight tickets
American Airlines
Feb 25
MKE5:00 amMilwaukee-Mitchell
9h 52m
2 stops
SJU4:52 pmSan Juan Luis Munoz Marin Intl
Mar 10
SJU1:30 amSan Juan Luis Munoz Marin Intl
10h 31m
1 stop
MKE11:01 amMilwaukee-Mitchell
$236
American Airlines
Feb 3
MKE7:32 amMilwaukee-Mitchell
11h 18m
2 stops
SJU8:50 pmSan Juan Luis Munoz Marin Intl
Feb 10
SJU7:07 amSan Juan Luis Munoz Marin Intl
11h 58m
1 stop
MKE5:05 pmMilwaukee-Mitchell
$309
American Airlines
Mar 17
MKE8:00 amMilwaukee-Mitchell
10h 39m
1 stop
SJU7:39 pmSan Juan Luis Munoz Marin Intl
Mar 24
SJU5:28 amSan Juan Luis Munoz Marin Intl
7h 16m
1 stop
MKE11:44 amMilwaukee-Mitchell
$329

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 January 14, 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

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Wed 2/25

8:00 am-8:39 pm

1 stop10h 39m

San Juan Luis Munoz Marin Intl

Wed 3/4

2:23 pm-11:14 pm

1 stop10h 51m

$236

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Mon 2/23

8:11 pm-9:54 am

1 stop11h 43m

San Juan Luis Munoz Marin Intl

Thu 2/26

3:53 am-9:43 am

1 stop7h 50m

$237

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Mon 1/26

7:01 pm-11:59 pm

1 stop26h 58m

San Juan Luis Munoz Marin Intl

Fri 1/30

11:34 am-10:17 am

1 stop24h 43m

$238

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Wed 2/18

4:39 pm-2:53 am

1 stop8h 14m

San Juan Luis Munoz Marin Intl

Wed 2/25

5:25 pm-6:42 pm

1 stop27h 17m

$239

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Mon 3/9

12:36 pm-1:58 am

1 stop12h 22m

San Juan Luis Munoz Marin Intl

Tue 3/17

11:07 am-5:50 pm

1 stop7h 43m

$241

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Thu 1/29

7:13 pm-10:24 am

1 stop13h 11m

San Juan Luis Munoz Marin Intl

Mon 2/2

8:00 am-6:06 pm

1 stop12h 06m

$243

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Mon 3/9

12:36 pm-1:58 am

1 stop12h 22m

San Juan Luis Munoz Marin Intl

Sun 3/15

3:08 am-11:41 am

1 stop9h 33m

$246

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Wed 2/25

8:00 am-9:26 pm

1 stop11h 26m

San Juan Luis Munoz Marin Intl

Wed 3/4

4:52 pm-10:28 pm

1 stop7h 36m

$256

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Wed 2/11

4:39 pm-2:53 am

1 stop8h 14m

San Juan Luis Munoz Marin Intl

Tue 2/17

3:53 am-7:40 am

1 stop29h 47m

$259

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Wed 3/4

4:39 pm-2:53 am

1 stop8h 14m

San Juan Luis Munoz Marin Intl

Tue 3/10

3:08 am-7:30 am

1 stop29h 22m

$260

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 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 $350.

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 $441 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 $378 on momondo.

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

As of January 2026, prices for Milwaukee to San Juan Luis Munoz Marin Intl Airport flights are approximately 31% 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 23m

Direct flights

None
The fastest flight from Milwaukee to San Juan Luis Munoz Marin Intl Airport takes 6h 23m
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

  • 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 23m 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
FrontierPriceFrom $136Free CancellationRating
5.7
3,056 reviews
Search Frontier flights
DeltaPriceFrom $187Free CancellationRating
7.9
8,040 reviews
Search Delta flights
United AirlinesPriceFrom $215Free CancellationRating
7.4
9,157 reviews
Search United Airlines flights
Spirit AirlinesPriceFrom $226Free CancellationRating
6.3
8,312 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $268Free CancellationRating
7.2
11,122 reviews
Search American Airlines flights
SouthwestPriceFrom $315Free CancellationRating
8.0
4,258 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
Humacao
Caguas
Rio Grande
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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