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Cheap flights from Milwaukee to San Juan from $91

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 2/23. 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.
Frontier Logo
6:37 pm - 9:54 am
MKE
-
SJU
13h 17m
1 stop
Frontier Logo
5:25 pm - 6:42 pm
SJU
-
MKE
27h 17m
1 stop
$236Frontier
dom, fev 22 - qua, fev 25
Frontier Logo
7:47 pm - 2:53 am
MKE
-
SJU
29h 06m
1 stop
Frontier Logo
5:25 pm - 3:44 pm
SJU
-
MKE
24h 19m
1 stop
$239Frontier
sáb, fev 21 - ter, fev 24
Frontier Logo
7:47 pm - 12:54 am
MKE
-
SJU
27h 07m
1 stop
Frontier Logo
4:25 pm - 9:43 am
SJU
-
MKE
19h 18m
1 stop
$242Frontier
sáb, fev 14 - qui, fev 19
Frontier Logo
8:11 pm - 9:54 am
MKE
-
SJU
11h 43m
1 stop
Frontier Logo
3:53 am - 3:44 pm
SJU
-
MKE
13h 51m
1 stop
$243Frontier
seg, mar 2 - ter, mar 3
Frontier Logo
6:39 pm - 10:09 am
MKE
-
SJU
13h 30m
1 stop
Frontier Logo
6:30 am - 8:06 pm
SJU
-
MKE
14h 36m
1 stop
$246Frontier
dom, mar 1 - qui, mar 12
Frontier Logo
8:11 pm - 9:54 am
MKE
-
SJU
11h 43m
1 stop
Frontier Logo
5:30 am - 5:02 pm
SJU
-
MKE
13h 32m
1 stop
$251Frontier
seg, mar 2 - sex, mar 6
Delta Logo
10:14 am - 8:18 pm
MKE
-
SJU
9h 04m
1 stop
Delta Logo
6:15 am - 4:24 pm
SJU
-
MKE
11h 09m
1 stop
$256Delta
sáb, abr 11 - sáb, abr 18
Frontier Logo
4:26 pm - 12:52 am
MKE
-
SJU
7h 26m
1 stop
Frontier Logo
7:15 am - 6:47 pm
SJU
-
MKE
12h 32m
1 stop
$258Frontier
sex, abr 10 - seg, mai 4
Frontier Logo
4:39 pm - 2:53 am
MKE
-
SJU
8h 14m
1 stop
Frontier Logo
3:08 am - 11:41 am
SJU
-
MKE
9h 33m
1 stop
$262Frontier
ter, mar 3 - dom, mar 8
Frontier Logo
7:47 pm - 2:53 am
MKE
-
SJU
29h 06m
1 stop
Frontier Logo
3:53 am - 3:44 pm
SJU
-
MKE
13h 51m
1 stop
$263Frontier
sáb, fev 21 - ter, fev 24

Frontier flights from Milwaukee to San Juan

Our best Frontier deals on Milwaukee to San Juan flight tickets
Frontier
Feb 22
MKE6:37 pmMilwaukee-Mitchell
13h 17m
1 stop
SJU9:54 amSan Juan Luis Munoz Marin Intl
Feb 25
SJU5:25 pmSan Juan Luis Munoz Marin Intl
27h 17m
1 stop
MKE6:42 pmMilwaukee-Mitchell
$236
Frontier
Feb 21
MKE7:47 pmMilwaukee-Mitchell
29h 06m
1 stop
SJU2:53 amSan Juan Luis Munoz Marin Intl
Feb 24
SJU5:25 pmSan Juan Luis Munoz Marin Intl
24h 19m
1 stop
MKE3:44 pmMilwaukee-Mitchell
$239
Frontier
Feb 14
MKE7:47 pmMilwaukee-Mitchell
27h 07m
1 stop
SJU12:54 amSan Juan Luis Munoz Marin Intl
Feb 19
SJU4:25 pmSan Juan Luis Munoz Marin Intl
19h 18m
1 stop
MKE9:43 amMilwaukee-Mitchell
$242

Southwest flights from Milwaukee to San Juan

Our best Southwest deals on Milwaukee to San Juan flight tickets
Southwest
Apr 8
MKE9:15 amMilwaukee-Mitchell
12h 25m
1 stop
SJU10:40 pmSan Juan Luis Munoz Marin Intl
Apr 14
SJU2:00 pmSan Juan Luis Munoz Marin Intl
8h 45m
2 stops
MKE9:45 pmMilwaukee-Mitchell
$289
Southwest
Feb 27
MKE2:45 pmMilwaukee-Mitchell
8h 50m
1 stop
SJU1:35 amSan Juan Luis Munoz Marin Intl
Mar 6
SJU6:00 amSan Juan Luis Munoz Marin Intl
7h 35m
1 stop
MKE11:35 amMilwaukee-Mitchell
$332
Southwest
Feb 7
MKE12:30 pmMilwaukee-Mitchell
7h 00m
1 stop
SJU9:30 pmSan Juan Luis Munoz Marin Intl
Mar 29
SJU6:10 amSan Juan Luis Munoz Marin Intl
11h 40m
1 stop
MKE4:50 pmMilwaukee-Mitchell
$483

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 janeiro 29, 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

dom 2/22

6:37 pm-9:54 am

1 stop13h 17m

San Juan Luis Munoz Marin Intl

qua 2/25

5:25 pm-6:42 pm

1 stop27h 17m

$236

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

sáb 2/21

7:47 pm-2:53 am

1 stop29h 06m

San Juan Luis Munoz Marin Intl

ter 2/24

5:25 pm-3:44 pm

1 stop24h 19m

$239

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

sáb 2/14

7:47 pm-12:54 am

1 stop27h 07m

San Juan Luis Munoz Marin Intl

qui 2/19

4:25 pm-9:43 am

1 stop19h 18m

$242

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

seg 3/2

8:11 pm-9:54 am

1 stop11h 43m

San Juan Luis Munoz Marin Intl

ter 3/3

3:53 am-3:44 pm

1 stop13h 51m

$243

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

dom 3/1

6:39 pm-10:09 am

1 stop13h 30m

San Juan Luis Munoz Marin Intl

qui 3/12

6:30 am-8:06 pm

1 stop14h 36m

$246

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

seg 3/2

8:11 pm-9:54 am

1 stop11h 43m

San Juan Luis Munoz Marin Intl

sex 3/6

5:30 am-5:02 pm

1 stop13h 32m

$251

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

sáb 4/11

10:14 am-8:18 pm

1 stop9h 04m

San Juan Luis Munoz Marin Intl

sáb 4/18

6:15 am-4:24 pm

1 stop11h 09m

$256

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

sex 4/10

4:26 pm-12:52 am

1 stop7h 26m

San Juan Luis Munoz Marin Intl

seg 5/4

7:15 am-6:47 pm

1 stop12h 32m

$258

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

ter 3/3

4:39 pm-2:53 am

1 stop8h 14m

San Juan Luis Munoz Marin Intl

dom 3/8

3:08 am-11:41 am

1 stop9h 33m

$262

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

sáb 2/21

7:47 pm-2:53 am

1 stop29h 06m

San Juan Luis Munoz Marin Intl

ter 2/24

3:53 am-3:44 pm

1 stop13h 51m

$263

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 typical price of a round-trip flight between Milwaukee and San Juan?

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 $350.

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 $442 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 $378 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 46m

Direct flights

None
The fastest flight from Milwaukee to San Juan takes 6h 46m
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 46m.

  • 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 $85Free CancellationRating
5.7
3,056 reviews
Search Frontier flights
DeltaPriceFrom $118Free CancellationRating
7.9
8,127 reviews
Search Delta flights
United AirlinesPriceFrom $158Free CancellationRating
7.4
9,215 reviews
Search United Airlines flights
Spirit AirlinesPriceFrom $208Free CancellationRating
6.3
8,394 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $266Free CancellationRating
7.2
11,206 reviews
Search American Airlines flights
SouthwestPriceFrom $315Free CancellationRating
8.0
4,267 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.

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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