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Cheap flights from Milwaukee to San Juan from $119

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 10/17. 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.
American Airlines Logo
5:53 pm - 11:00 amMKE  Milwaukee-Mitchell-SJU San Juan Luis Munoz Marin Intl
16h 07m2 stops Charlotte Douglas Miami
American Airlines Logo
3:41 pm - 8:01 amSJU  San Juan Luis Munoz Marin Intl-MKE Milwaukee-Mitchell
17h 20m2 stops Charlotte Douglas Chicago O'Hare Intl
$238American Airlines
Sat, Sep 12 - Sat, Sep 19
American Airlines Logo
2:02 pm - 9:24 amMKE  Milwaukee-Mitchell-SJU San Juan Luis Munoz Marin Intl
18h 22m2 stops Charlotte Douglas Miami
American Airlines Logo
2:22 pm - 9:10 pmSJU  San Juan Luis Munoz Marin Intl-MKE Milwaukee-Mitchell
7h 48m1 stop Philadelphia
$238American Airlines
Fri, Sep 11 - Fri, Sep 18
Southwest Logo
6:00 am - 4:40 pmMKE  Milwaukee-Mitchell-SJU San Juan Luis Munoz Marin Intl
9h 40m1 stop Orlando
Southwest Logo
2:00 pm - 8:40 pmSJU  San Juan Luis Munoz Marin Intl-MKE Milwaukee-Mitchell
7h 40m1 stop Baltimore/Washington
$238Southwest
Sat, Sep 12 - Sat, Sep 19
Southwest Logo
1:55 pm - 11:55 pmMKE  Milwaukee-Mitchell-SJU San Juan Luis Munoz Marin Intl
9h 00m1 stop Orlando
Southwest Logo
11:35 am - 8:50 pmSJU  San Juan Luis Munoz Marin Intl-MKE Milwaukee-Mitchell
10h 15m1 stop Orlando
$238Southwest
Fri, Sep 18 - Fri, Sep 25
Frontier Logo
12:10 pm - 8:11 amMKE  Milwaukee-Mitchell-SJU San Juan Luis Munoz Marin Intl
19h 01m1 stop Orlando
Frontier Logo
3:10 am - 11:13 amSJU  San Juan Luis Munoz Marin Intl-MKE Milwaukee-Mitchell
9h 03m1 stop Orlando
$248Frontier
Thu, Sep 3 - Sat, Sep 5
Frontier Logo
8:03 pm - 1:16 pmMKE  Milwaukee-Mitchell-SJU San Juan Luis Munoz Marin Intl
16h 13m1 stop Orlando
Frontier Logo
7:05 am - 7:08 pmSJU  San Juan Luis Munoz Marin Intl-MKE Milwaukee-Mitchell
14h 03m1 stop Orlando
$251Frontier
Thu, Oct 29 - Mon, Nov 2
JetBlue Logo
11:00 am - 11:10 pmMKE  Milwaukee-Mitchell-SJU San Juan Luis Munoz Marin Intl
11h 10m1 stop Tampa
JetBlue Logo
6:30 am - 3:25 pmSJU  San Juan Luis Munoz Marin Intl-MKE Milwaukee-Mitchell
9h 55m1 stop Orlando
$319JetBlue
Thu, Sep 24 - Mon, Sep 28
JetBlue Logo
10:30 am - 9:00 pmMKE  Milwaukee-Mitchell-SJU San Juan Luis Munoz Marin Intl
9h 30m1 stop Orlando
JetBlue Logo
9:25 pm - 8:50 amSJU  San Juan Luis Munoz Marin Intl-MKE Milwaukee-Mitchell
12h 25m1 stop Orlando
$319JetBlue
Wed, Sep 16 - Sun, Sep 20
United Airlines Logo
5:00 am - 2:44 pmMKE  Milwaukee-Mitchell-SJU San Juan Luis Munoz Marin Intl
8h 44m1 stop Chicago O'Hare Intl
United Airlines Logo
3:56 pm - 10:59 pmSJU  San Juan Luis Munoz Marin Intl-MKE Milwaukee-Mitchell
8h 03m1 stop Chicago O'Hare Intl
$346United Airlines
Mon, Sep 28 - Sun, Oct 4
United Airlines Logo
12:14 pm - 12:36 amMKE  Milwaukee-Mitchell-SJU San Juan Luis Munoz Marin Intl
10h 22m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
2:05 am - 9:46 amSJU  San Juan Luis Munoz Marin Intl-MKE Milwaukee-Mitchell
9h 41m1 stop Newark
$366United Airlines
Sat, Jan 23 - Fri, Jan 29

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American Airlines flights from Milwaukee to San Juan

Our best American Airlines deals on Milwaukee to San Juan flight tickets
American Airlines
Sep 11
MKE2:02 pmMilwaukee-Mitchell
18h 22m
2 stops
SJU9:24 amSan Juan Luis Munoz Marin Intl
Sep 18
SJU10:16 amSan Juan Luis Munoz Marin Intl
11h 54m
2 stops
MKE9:10 pmMilwaukee-Mitchell
$238
American Airlines
Sep 2
MKE2:49 pmMilwaukee-Mitchell
8h 10m
1 stop
SJU11:59 pmSan Juan Luis Munoz Marin Intl
Sep 9
SJU11:51 amSan Juan Luis Munoz Marin Intl
11h 03m
2 stops
MKE9:54 pmMilwaukee-Mitchell
$243
American Airlines
Sep 1
MKE6:00 amMilwaukee-Mitchell
11h 33m
2 stops
SJU6:33 pmSan Juan Luis Munoz Marin Intl
Sep 10
SJU6:00 amSan Juan Luis Munoz Marin Intl
11h 41m
2 stops
MKE4:41 pmMilwaukee-Mitchell
$308

Frontier flights from Milwaukee to San Juan

Our best Frontier deals on Milwaukee to San Juan flight tickets
Frontier
Sep 3
MKE12:10 pmMilwaukee-Mitchell
19h 01m
1 stop
SJU8:11 amSan Juan Luis Munoz Marin Intl
Sep 5
SJU3:10 amSan Juan Luis Munoz Marin Intl
9h 03m
1 stop
MKE11:13 amMilwaukee-Mitchell
$248
Frontier
Oct 29
MKE8:03 pmMilwaukee-Mitchell
16h 13m
1 stop
SJU1:16 pmSan Juan Luis Munoz Marin Intl
Nov 2
SJU7:05 amSan Juan Luis Munoz Marin Intl
14h 03m
1 stop
MKE7:08 pmMilwaukee-Mitchell
$251
Frontier
Aug 18
MKE12:10 pmMilwaukee-Mitchell
27h 39m
1 stop
SJU4:49 pmSan Juan Luis Munoz Marin Intl
Sep 2
SJU3:10 amSan Juan Luis Munoz Marin Intl
9h 03m
1 stop
MKE11:13 amMilwaukee-Mitchell
$335

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 August 15, 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 Milwaukee-Mitchell - SJU San Juan Luis Munoz Marin Intl

MKESJU

Milwaukee-Mitchell

Sat 9/12

5:53 pm-11:00 am

2 stops16h 07m

San Juan Luis Munoz Marin Intl

Sat 9/19

3:41 pm-8:01 am

2 stops17h 20m

$238

MilwaukeeSan Juan

MKE Milwaukee-Mitchell - SJU San Juan Luis Munoz Marin Intl

MKESJU

Milwaukee-Mitchell

Fri 9/11

2:02 pm-9:24 am

2 stops18h 22m

San Juan Luis Munoz Marin Intl

Fri 9/18

2:22 pm-9:10 pm

1 stop7h 48m

$238

MilwaukeeSan Juan

MKE Milwaukee-Mitchell - SJU San Juan Luis Munoz Marin Intl

MKESJU

Milwaukee-Mitchell

Sat 9/12

6:00 am-4:40 pm

1 stop9h 40m

San Juan Luis Munoz Marin Intl

Sat 9/19

2:00 pm-8:40 pm

1 stop7h 40m

$238

MilwaukeeSan Juan

MKE Milwaukee-Mitchell - SJU San Juan Luis Munoz Marin Intl

MKESJU

Milwaukee-Mitchell

Fri 9/18

1:55 pm-11:55 pm

1 stop9h 00m

San Juan Luis Munoz Marin Intl

Fri 9/25

11:35 am-8:50 pm

1 stop10h 15m

$238

MilwaukeeSan Juan

MKE Milwaukee-Mitchell - SJU San Juan Luis Munoz Marin Intl

MKESJU

Milwaukee-Mitchell

Thu 9/3

12:10 pm-8:11 am

1 stop19h 01m

San Juan Luis Munoz Marin Intl

Sat 9/5

3:10 am-11:13 am

1 stop9h 03m

$248

MilwaukeeSan Juan

MKE Milwaukee-Mitchell - SJU San Juan Luis Munoz Marin Intl

MKESJU

Milwaukee-Mitchell

Thu 10/29

8:03 pm-1:16 pm

1 stop16h 13m

San Juan Luis Munoz Marin Intl

Mon 11/2

7:05 am-7:08 pm

1 stop14h 03m

$251

MilwaukeeSan Juan

MKE Milwaukee-Mitchell - SJU San Juan Luis Munoz Marin Intl

MKESJU

Milwaukee-Mitchell

Thu 9/24

11:00 am-11:10 pm

1 stop11h 10m

San Juan Luis Munoz Marin Intl

Mon 9/28

6:30 am-3:25 pm

1 stop9h 55m

$319

MilwaukeeSan Juan

MKE Milwaukee-Mitchell - SJU San Juan Luis Munoz Marin Intl

MKESJU

Milwaukee-Mitchell

Wed 9/16

10:30 am-9:00 pm

1 stop9h 30m

San Juan Luis Munoz Marin Intl

Sun 9/20

9:25 pm-8:50 am

1 stop12h 25m

$319
Quickest round-trip

MilwaukeeSan Juan

MKE Milwaukee-Mitchell - SJU San Juan Luis Munoz Marin Intl

MKESJU

Milwaukee-Mitchell

Mon 9/28

5:00 am-2:44 pm

1 stop8h 44m

San Juan Luis Munoz Marin Intl

Sun 10/4

3:56 pm-10:59 pm

1 stop8h 03m

$346

MilwaukeeSan Juan

MKE Milwaukee-Mitchell - SJU San Juan Luis Munoz Marin Intl

MKESJU

Milwaukee-Mitchell

Sat 1/23

12:14 pm-12:36 am

2 stops10h 22m

San Juan Luis Munoz Marin Intl

Fri 1/29

2:05 am-9:46 am

1 stop9h 41m

$366

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?

Prices are currently low for flights on this route.

Typical prices usually range from $366 to $529.
The lowest price recently found on this route was $238.

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 $360.

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 $466 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 $391 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 20m

Direct flights

None
The fastest flight from Milwaukee to San Juan takes 6h 20m
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 20m.

  • 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 $156Free CancellationRating
5.6
2,686 reviews
Search Frontier flights
DeltaPriceFrom $170Free CancellationRating
7.8
8,505 reviews
Search Delta flights
United AirlinesPriceFrom $235Free CancellationRating
7.4
10,106 reviews
Search United Airlines flights
American AirlinesPriceFrom $256Free CancellationRating
7.1
11,947 reviews
Search American Airlines flights
SouthwestPriceFrom $318Free CancellationRating
8.0
4,218 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