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Cheap flights from Milwaukee to San Juan from $101

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 4/12. 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
6:00 am - 10:05 pm
MKE
-
SJU
15h 05m
1 stop
American Airlines Logo
5:45 am - 3:56 pm
SJU
-
MKE
11h 11m
2 stops
$270American Airlines
Sat, May 2 - Tue, May 5
Southwest Logo
11:30 am - 11:40 pm
MKE
-
SJU
11h 10m
2 stops
Southwest Logo
6:25 am - 2:20 pm
SJU
-
MKE
8h 55m
1 stop
$277Southwest
Tue, Apr 28 - Sat, May 2
Frontier Logo
8:20 pm - 9:57 am
MKE
-
SJU
12h 37m
1 stop
Frontier Logo
12:04 pm - 8:06 pm
SJU
-
MKE
9h 02m
1 stop
$278Frontier
Mon, Mar 23 - Thu, Mar 26
Frontier Logo
12:21 pm - 10:56 pm
MKE
-
SJU
9h 35m
1 stop
Frontier Logo
3:08 am - 11:08 am
SJU
-
MKE
9h 00m
1 stop
$280Frontier
Thu, Apr 30 - Sat, May 9
United Airlines Logo
10:45 am - 9:24 pm
MKE
-
SJU
9h 39m
2 stops
United Airlines Logo
1:00 am - 9:45 am
SJU
-
MKE
9h 45m
2 stops
$290United Airlines
Tue, Apr 21 - Tue, May 5
Frontier Logo
8:20 pm - 9:57 am
MKE
-
SJU
12h 37m
1 stop
Frontier Logo
12:04 pm - 8:06 pm
SJU
-
MKE
9h 02m
1 stop
$298Frontier
Mon, Mar 23 - Thu, Mar 26
United Airlines Logo
9:43 am - 9:24 pm
MKE
-
SJU
10h 41m
2 stops
United Airlines Logo
1:00 am - 10:00 am
SJU
-
MKE
10h 00m
2 stops
$299United Airlines
Sat, Apr 25 - Tue, Apr 28
United Airlines Logo
8:33 am - 11:50 pm
MKE
-
SJU
14h 17m
2 stops
United Airlines Logo
1:00 am - 2:27 pm
SJU
-
MKE
14h 27m
2 stops
$300United Airlines
Sat, May 2 - Fri, May 8
Delta Logo
5:45 am - 4:18 pm
MKE
-
SJU
9h 33m
1 stop
Delta Logo
6:15 am - 1:52 pm
SJU
-
MKE
8h 37m
1 stop
$302Delta
Wed, Apr 1 - Fri, May 1
American Airlines Logo
6:00 am - 10:05 pm
MKE
-
SJU
15h 05m
1 stop
American Airlines Logo
6:00 am - 9:41 pm
SJU
-
MKE
16h 41m
1 stop
$304American Airlines
Sat, May 2 - Tue, May 5

Delta flights from Milwaukee to San Juan

Our best Delta deals on Milwaukee to San Juan flight tickets
Delta
Apr 1
MKE5:45 amMilwaukee-Mitchell
9h 33m
1 stop
SJU4:18 pmSan Juan Luis Munoz Marin Intl
May 1
SJU6:15 amSan Juan Luis Munoz Marin Intl
8h 37m
1 stop
MKE1:52 pmMilwaukee-Mitchell
$302
Delta
Apr 1
MKE10:09 amMilwaukee-Mitchell
9h 09m
1 stop
SJU8:18 pmSan Juan Luis Munoz Marin Intl
May 1
SJU6:15 amSan Juan Luis Munoz Marin Intl
10h 03m
1 stop
MKE3:18 pmMilwaukee-Mitchell
$317
Delta
Mar 31
MKE10:09 amMilwaukee-Mitchell
9h 09m
1 stop
SJU8:18 pmSan Juan Luis Munoz Marin Intl
Apr 8
SJU1:00 pmSan Juan Luis Munoz Marin Intl
8h 55m
1 stop
MKE8:55 pmMilwaukee-Mitchell
$368

Southwest flights from Milwaukee to San Juan

Our best Southwest deals on Milwaukee to San Juan flight tickets
Southwest
Apr 28
MKE11:30 amMilwaukee-Mitchell
11h 10m
2 stops
SJU11:40 pmSan Juan Luis Munoz Marin Intl
May 2
SJU6:25 amSan Juan Luis Munoz Marin Intl
8h 55m
1 stop
MKE2:20 pmMilwaukee-Mitchell
$277
Southwest
May 9
MKE2:15 pmMilwaukee-Mitchell
8h 00m
1 stop
SJU11:15 pmSan Juan Luis Munoz Marin Intl
May 16
SJU5:15 amSan Juan Luis Munoz Marin Intl
7h 45m
1 stop
MKE12:00 pmMilwaukee-Mitchell
$305
Southwest
Apr 7
MKE2:45 pmMilwaukee-Mitchell
6h 55m
1 stop
SJU10:40 pmSan Juan Luis Munoz Marin Intl
Apr 13
SJU8:40 pmSan Juan Luis Munoz Marin Intl
13h 00m
1 stop
MKE8:40 amMilwaukee-Mitchell
$341

momondo Fare Finder

 
Customize your flight search to find flights from Milwaukee to San Juan 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 March 1, 2026.
Use the filters below to find and compare flights from Milwaukee to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sat 5/2

6:00 am-10:05 pm

1 stop15h 05m

San Juan Luis Munoz Marin Intl

Tue 5/5

5:45 am-3:56 pm

2 stops11h 11m

$270

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Tue 4/28

11:30 am-11:40 pm

2 stops11h 10m

San Juan Luis Munoz Marin Intl

Sat 5/2

6:25 am-2:20 pm

1 stop8h 55m

$277

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Mon 3/23

8:20 pm-9:57 am

1 stop12h 37m

San Juan Luis Munoz Marin Intl

Thu 3/26

12:04 pm-8:06 pm

1 stop9h 02m

$278

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Thu 4/30

12:21 pm-10:56 pm

1 stop9h 35m

San Juan Luis Munoz Marin Intl

Sat 5/9

3:08 am-11:08 am

1 stop9h 00m

$280

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Tue 4/21

10:45 am-9:24 pm

2 stops9h 39m

San Juan Luis Munoz Marin Intl

Tue 5/5

1:00 am-9:45 am

2 stops9h 45m

$290

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Mon 3/23

8:20 pm-9:57 am

1 stop12h 37m

San Juan Luis Munoz Marin Intl

Thu 3/26

12:04 pm-8:06 pm

1 stop9h 02m

$298

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sat 4/25

9:43 am-9:24 pm

2 stops10h 41m

San Juan Luis Munoz Marin Intl

Tue 4/28

1:00 am-10:00 am

2 stops10h 00m

$299

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sat 5/2

8:33 am-11:50 pm

2 stops14h 17m

San Juan Luis Munoz Marin Intl

Fri 5/8

1:00 am-2:27 pm

2 stops14h 27m

$300

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Wed 4/1

5:45 am-4:18 pm

1 stop9h 33m

San Juan Luis Munoz Marin Intl

Fri 5/1

6:15 am-1:52 pm

1 stop8h 37m

$302

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sat 5/2

6:00 am-10:05 pm

1 stop15h 05m

San Juan Luis Munoz Marin Intl

Tue 5/5

6:00 am-9:41 pm

1 stop16h 41m

$304

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

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?

If you’re not able to fly to San Juan in September, then October is your next best option. Flight prices from Milwaukee to San Juan during October average around $317.

How far in advance should I book a flight to San Juan?

You are more likely to see cheaper flights to San Juan from Milwaukee when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan for around $445 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan from Milwaukee for as low as $383 on momondo.

Cheap Milwaukee to San Juan flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Milwaukee to San Juan

Fastest flight time

6h 55m

Direct flights

None
The fastest flight from Milwaukee to San Juan takes 6h 55m
There are no direct flights from Milwaukee to San Juan. There are no popular flight routes from Milwaukee to San Juan.
Search flight deals

  • How far is Milwaukee-Mitchell to San Juan by plane?

    The distance between Milwaukee-Mitchell and San Juan is about 2119.6 mi. A reasonable flight in good conditions will take 6h 55m.

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

    Prices for flights from Milwaukee-Mitchell Airport to San Juan are updated daily.

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

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

    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.

  • What documentation or ID do you need to fly to San Juan?

    The necessary travel and health documents for your San Juan trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Milwaukee to San Juan

Compare and see reviews for airlines that fly from Milwaukee to San Juan with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $101Free CancellationRating
5.7
3,040 reviews
Search Frontier flights
DeltaPriceFrom $115Free CancellationRating
7.9
8,242 reviews
Search Delta flights
Spirit AirlinesPriceFrom $195Free CancellationRating
6.3
8,490 reviews
Search Spirit Airlines flights
United AirlinesPriceFrom $202Free CancellationRating
7.4
9,370 reviews
Search United Airlines flights
American AirlinesPriceFrom $256Free CancellationRating
7.1
11,370 reviews
Search American Airlines flights
SouthwestPriceFrom $315Free CancellationRating
8.0
4,303 reviews
Search Southwest flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Milwaukee to San Juan. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for Milwaukee to San Juan flights to just show those with flexible booking policies.

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

Once all potential Milwaukee to San Juan flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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.

An easier way to manage your San Juan trip

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Find better results for your trip to Puerto Rico

Fly into one of these airports located in San Juan

Airports listed have a maximum distance of 7.1 mi from San Juan
San Juan Isla Grande Airport
San Juan Luis Munoz Marin Intl Airport