Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Milwaukee to San Juan from $118

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 8/19. 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
1 adult, Economy, 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.
United Airlines Logo
5:00 am - 2:44 pm
MKE
-
SJU
8h 44m
1 stop
United Airlines Logo
7:00 am - 5:09 pm
SJU
-
MKE
11h 09m
1 stop
$226United Airlines
Tue, Aug 25 - Tue, Sep 1
American Airlines Logo
6:28 am - 2:51 pm
MKE
-
SJU
7h 23m
1 stop
American Airlines Logo
7:00 am - 5:30 pm
SJU
-
MKE
11h 30m
1 stop
$231American Airlines
Wed, Aug 12 - Tue, Aug 18
United Airlines Logo
6:00 am - 2:44 pm
MKE
-
SJU
7h 44m
1 stop
United Airlines Logo
7:00 am - 5:09 pm
SJU
-
MKE
11h 09m
1 stop
$250United Airlines
Tue, Sep 15 - Sat, Sep 19
American Airlines Logo
12:58 pm - 11:43 pm
MKE
-
SJU
9h 45m
2 stops
American Airlines Logo
3:47 pm - 10:59 pm
SJU
-
MKE
8h 12m
1 stop
$276American Airlines
Sat, Aug 22 - Tue, Aug 25
American Airlines Logo
6:20 am - 10:24 pm
MKE
-
SJU
15h 04m
1 stop
American Airlines Logo
1:38 pm - 10:59 pm
SJU
-
MKE
10h 21m
2 stops
$281American Airlines
Wed, Aug 12 - Tue, Aug 18
American Airlines Logo
5:00 am - 2:51 pm
MKE
-
SJU
8h 51m
2 stops
American Airlines Logo
10:33 am - 9:06 pm
SJU
-
MKE
11h 33m
2 stops
$316American Airlines
Sat, Aug 29 - Sun, Sep 6
American Airlines Logo
5:00 am - 6:34 pm
MKE
-
SJU
12h 34m
2 stops
American Airlines Logo
10:33 am - 9:06 pm
SJU
-
MKE
11h 33m
2 stops
$321American Airlines
Wed, Sep 2 - Sun, Sep 6
American Airlines Logo
6:28 am - 11:59 pm
MKE
-
SJU
16h 31m
1 stop
American Airlines Logo
7:00 am - 11:14 pm
SJU
-
MKE
17h 14m
1 stop
$326American Airlines
Tue, Aug 11 - Fri, Aug 14
American Airlines Logo
6:28 am - 9:55 pm
MKE
-
SJU
14h 27m
2 stops
American Airlines Logo
1:38 pm - 10:59 pm
SJU
-
MKE
10h 21m
2 stops
$331American Airlines
Wed, Aug 12 - Tue, Aug 18
American Airlines Logo
7:24 am - 11:50 pm
MKE
-
SJU
15h 26m
1 stop
American Airlines Logo
5:25 am - 6:50 pm
SJU
-
MKE
14h 25m
1 stop
$332American Airlines
Mon, Oct 5 - Fri, Oct 30

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Frontier flights from Milwaukee to San Juan

Our best Frontier deals on Milwaukee to San Juan flight tickets
Frontier
Jun 28
MKE8:43 amMilwaukee-Mitchell
13h 46m
1 stop
SJU11:29 pmSan Juan Luis Munoz Marin Intl
Jul 11
SJU8:37 pmSan Juan Luis Munoz Marin Intl
12h 21m
1 stop
MKE7:58 amMilwaukee-Mitchell
$456
Frontier
Jun 25
MKE8:53 amMilwaukee-Mitchell
16h 16m
1 stop
SJU2:09 amSan Juan Luis Munoz Marin Intl
Jul 6
SJU10:48 pmSan Juan Luis Munoz Marin Intl
10h 10m
1 stop
MKE7:58 amMilwaukee-Mitchell
$466
Frontier
Jun 25
MKE8:53 amMilwaukee-Mitchell
13h 36m
1 stop
SJU11:29 pmSan Juan Luis Munoz Marin Intl
Jul 8
SJU8:37 pmSan Juan Luis Munoz Marin Intl
12h 21m
1 stop
MKE7:58 amMilwaukee-Mitchell
$486

American Airlines flights from Milwaukee to San Juan

Our best American Airlines deals on Milwaukee to San Juan flight tickets
American Airlines
Aug 12
MKE6:28 amMilwaukee-Mitchell
7h 23m
1 stop
SJU2:51 pmSan Juan Luis Munoz Marin Intl
Aug 18
SJU7:00 amSan Juan Luis Munoz Marin Intl
11h 30m
1 stop
MKE5:30 pmMilwaukee-Mitchell
$231
American Airlines
Aug 22
MKE12:58 pmMilwaukee-Mitchell
9h 45m
2 stops
SJU11:43 pmSan Juan Luis Munoz Marin Intl
Aug 25
SJU3:47 pmSan Juan Luis Munoz Marin Intl
8h 12m
1 stop
MKE10:59 pmMilwaukee-Mitchell
$276
American Airlines
Aug 12
MKE6:20 amMilwaukee-Mitchell
15h 04m
1 stop
SJU10:24 pmSan Juan Luis Munoz Marin Intl
Aug 18
SJU7:30 amSan Juan Luis Munoz Marin Intl
16h 29m
1 stop
MKE10:59 pmMilwaukee-Mitchell
$281

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 June 11, 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

Cheapest round-trip

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Tue 8/25

5:00 am-2:44 pm

1 stop8h 44m

San Juan Luis Munoz Marin Intl

Tue 9/1

7:00 am-5:09 pm

1 stop11h 09m

$226

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Wed 8/12

6:28 am-2:51 pm

1 stop7h 23m

San Juan Luis Munoz Marin Intl

Tue 8/18

7:00 am-5:30 pm

1 stop11h 30m

$231

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Tue 9/15

6:00 am-2:44 pm

1 stop7h 44m

San Juan Luis Munoz Marin Intl

Sat 9/19

7:00 am-5:09 pm

1 stop11h 09m

$250
Quickest round-trip

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sat 8/22

12:58 pm-11:43 pm

2 stops9h 45m

San Juan Luis Munoz Marin Intl

Tue 8/25

3:47 pm-10:59 pm

1 stop8h 12m

$276

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Wed 8/12

6:20 am-10:24 pm

1 stop15h 04m

San Juan Luis Munoz Marin Intl

Tue 8/18

1:38 pm-10:59 pm

2 stops10h 21m

$281

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Sat 8/29

5:00 am-2:51 pm

2 stops8h 51m

San Juan Luis Munoz Marin Intl

Sun 9/6

10:33 am-9:06 pm

2 stops11h 33m

$316

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Wed 9/2

5:00 am-6:34 pm

2 stops12h 34m

San Juan Luis Munoz Marin Intl

Sun 9/6

10:33 am-9:06 pm

2 stops11h 33m

$321

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Tue 8/11

6:28 am-11:59 pm

1 stop16h 31m

San Juan Luis Munoz Marin Intl

Fri 8/14

7:00 am-11:14 pm

1 stop17h 14m

$326

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Wed 8/12

6:28 am-9:55 pm

2 stops14h 27m

San Juan Luis Munoz Marin Intl

Tue 8/18

1:38 pm-10:59 pm

2 stops10h 21m

$331

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

Mon 10/5

7:24 am-11:50 pm

1 stop15h 26m

San Juan Luis Munoz Marin Intl

Fri 10/30

5:25 am-6:50 pm

1 stop14h 25m

$332

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 October, then November is your next best option. Flight prices from Milwaukee to San Juan during November average around $113.

How far in advance should I book a flight from Milwaukee 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 $452 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 $369 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 21m

Direct flights

None
The fastest flight from Milwaukee to San Juan takes 6h 21m
There are no direct flights from Milwaukee to San Juan. There are no popular flight routes from Milwaukee to San Juan.
Search flight deals

Frequently asked questions about flying from Milwaukee to San Juan

  • 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 21m.

  • 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
DeltaPriceFrom $112Free CancellationRating
7.9
8,399 reviews
Search Delta flights
FrontierPriceFrom $156Free CancellationRating
5.6
2,897 reviews
Search Frontier flights
United AirlinesPriceFrom $235Free CancellationRating
7.4
9,805 reviews
Search United Airlines flights
American AirlinesPriceFrom $256Free CancellationRating
7.1
11,640 reviews
Search American Airlines flights
SouthwestPriceFrom $316Free CancellationRating
7.9
4,235 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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 7/11
Sat 7/18
By creating a price alert you accept our terms of use and privacy policy.

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