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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 10/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Milwaukee to San Juan

Cheap round-trip flights

Delta Logo
2:04 pm - 9:59 pmMKE-SJU
6h 55m1 stop
Delta Logo
5:43 pm - 11:55 pmSJU-MKE
7h 12m1 stop
$235Delta
Find Deal
vie., oct. 24 - vie., oct. 31
American Airlines Logo
6:00 am - 11:59 pmMKE-SJU
16h 59m1 stop
American Airlines Logo
5:30 am - 8:18 pmSJU-MKE
15h 48m1 stop
$239American Airlines
Find Deal
dom., oct. 19 - mié., oct. 22
American Airlines Logo
8:00 am - 10:10 pmMKE-SJU
13h 10m1 stop
American Airlines Logo
5:30 am - 8:18 pmSJU-MKE
15h 48m1 stop
$240American Airlines
Find Deal
mié., oct. 15 - mié., oct. 22
United Airlines Logo
10:30 am - 10:22 pmMKE-SJU
9h 52m2 stops
United Airlines Logo
2:15 pm - 10:56 pmSJU-MKE
10h 41m2 stops
$260United Airlines
Find Deal
mar., ene. 20 - mié., ene. 28
Delta Logo
10:33 am - 11:16 pmMKE-SJU
10h 43m1 stop
Delta Logo
6:15 am - 12:18 pmSJU-MKE
8h 03m1 stop
$305Delta
Find Deal
jue., ene. 1 - sáb., feb. 14
United Airlines Logo
11:30 am - 9:00 pmMKE-SJU
7h 30m1 stop
United Airlines Logo
2:05 am - 12:09 pmSJU-MKE
12h 04m2 stops
$314United Airlines
Find Deal
dom., feb. 1 - vie., feb. 6
Southwest Logo
12:10 pm - 1:25 amMKE-SJU
11h 15m1 stop
Southwest Logo
8:55 am - 4:25 pmSJU-MKE
9h 30m1 stop
$359Southwest
Find Deal
dom., nov. 2 - mar., nov. 11
Southwest Logo
4:05 pm - 12:45 amMKE-SJU
6h 40m1 stop
Southwest Logo
11:20 am - 9:45 pmSJU-MKE
12h 25m2 stops
$370Southwest
Find Deal
sáb., nov. 22 - mar., dic. 2
Spirit Airlines Logo
1:55 pm - 1:44 amMKE-SJU
10h 49m1 stop
Spirit Airlines Logo
2:49 am - 12:42 pmSJU-MKE
10h 53m1 stop
$387Spirit Airlines
Find Deal
jue., oct. 23 - sáb., oct. 25
Spirit Airlines Logo
1:55 pm - 1:44 amMKE-SJU
10h 49m1 stop
Spirit Airlines Logo
2:49 am - 12:42 pmSJU-MKE
10h 53m1 stop
$390Spirit Airlines
Find Deal
jue., oct. 23 - sáb., oct. 25

United Airlines flights from Milwaukee to San Juan

Our best United Airlines deals on Milwaukee to San Juan flight tickets
United Airlines
Jan 20
MKE10:30 amMilwaukee-Mitchell
9h 52m
2 stops
SJU10:22 pmSan Juan Luis Munoz Marin Intl
Jan 28
SJU2:15 pmSan Juan Luis Munoz Marin Intl
10h 41m
2 stops
MKE10:56 pmMilwaukee-Mitchell
$260
Find similar
United Airlines
Feb 1
MKE11:30 amMilwaukee-Mitchell
7h 30m
1 stop
SJU9:00 pmSan Juan Luis Munoz Marin Intl
Feb 6
SJU2:05 amSan Juan Luis Munoz Marin Intl
12h 04m
2 stops
MKE12:09 pmMilwaukee-Mitchell
$314
Find similar
United Airlines
Oct 21
MKE7:00 amMilwaukee-Mitchell
6h 44m
1 stop
SJU2:44 pmSan Juan Luis Munoz Marin Intl
Oct 28
SJU7:10 amSan Juan Luis Munoz Marin Intl
7h 48m
1 stop
MKE1:58 pmMilwaukee-Mitchell
$325
Find similar

Southwest flights from Milwaukee to San Juan

Our best Southwest deals on Milwaukee to San Juan flight tickets
Southwest
Nov 2
MKE12:10 pmMilwaukee-Mitchell
11h 15m
1 stop
SJU1:25 amSan Juan Luis Munoz Marin Intl
Nov 11
SJU8:55 amSan Juan Luis Munoz Marin Intl
9h 30m
1 stop
MKE4:25 pmMilwaukee-Mitchell
$359
Find similar
Southwest
Nov 22
MKE4:05 pmMilwaukee-Mitchell
6h 40m
1 stop
SJU12:45 amSan Juan Luis Munoz Marin Intl
Dec 2
SJU11:20 amSan Juan Luis Munoz Marin Intl
12h 25m
2 stops
MKE9:45 pmMilwaukee-Mitchell
$370
Find similar
Southwest
Nov 6
MKE12:45 pmMilwaukee-Mitchell
7h 00m
1 stop
SJU9:45 pmSan Juan Luis Munoz Marin Intl
Nov 10
SJU5:40 amSan Juan Luis Munoz Marin Intl
12h 50m
1 stop
MKE4:30 pmMilwaukee-Mitchell
$386
Find similar

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 septiembre 18, 2025.
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

vie. 10/24

2:04 pm-9:59 pm

1 stop6h 55m

San Juan Luis Munoz Marin Intl

vie. 10/31

5:43 pm-11:55 pm

1 stop7h 12m

$235

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

dom. 10/19

6:00 am-11:59 pm

1 stop16h 59m

San Juan Luis Munoz Marin Intl

mié. 10/22

5:30 am-8:18 pm

1 stop15h 48m

$239

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

mié. 10/15

8:00 am-10:10 pm

1 stop13h 10m

San Juan Luis Munoz Marin Intl

mié. 10/22

5:30 am-8:18 pm

1 stop15h 48m

$240

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

mar. 1/20

10:30 am-10:22 pm

2 stops9h 52m

San Juan Luis Munoz Marin Intl

mié. 1/28

2:15 pm-10:56 pm

2 stops10h 41m

$260

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

jue. 1/1

10:33 am-11:16 pm

1 stop10h 43m

San Juan Luis Munoz Marin Intl

sáb. 2/14

6:15 am-12:18 pm

1 stop8h 03m

$305

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

dom. 2/1

11:30 am-9:00 pm

1 stop7h 30m

San Juan Luis Munoz Marin Intl

vie. 2/6

2:05 am-12:09 pm

2 stops12h 04m

$314

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

dom. 11/2

12:10 pm-1:25 am

1 stop11h 15m

San Juan Luis Munoz Marin Intl

mar. 11/11

8:55 am-4:25 pm

1 stop9h 30m

$359

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

sáb. 11/22

4:05 pm-12:45 am

1 stop6h 40m

San Juan Luis Munoz Marin Intl

mar. 12/2

11:20 am-9:45 pm

2 stops12h 25m

$370

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

jue. 10/23

1:55 pm-1:44 am

1 stop10h 49m

San Juan Luis Munoz Marin Intl

sáb. 10/25

2:49 am-12:42 pm

1 stop10h 53m

$387

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

jue. 10/23

1:55 pm-1:44 am

1 stop10h 49m

San Juan Luis Munoz Marin Intl

sáb. 10/25

2:49 am-12:42 pm

1 stop10h 53m

$390

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 $347.

What is the cheapest day to depart on your flight to San Juan?

The cheapest day to depart from Milwaukee to San Juan is on a Tuesday when prices can be found for as low as $389. The most expensive day to fly to San Juan is Friday, with ticket prices averaging around $477.

What is the cheapest time of day to depart on your flight to San Juan?

The cheapest time of day to fly to San Juan is in the evening when flights can be purchased for as low as $360. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $458 on average. Flights to San Juan from Milwaukee at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 $433 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 $351 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

Direct flights

None
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 40m.

  • 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 $129Free CancellationRating
5.8
3,171 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $208Free CancellationRating
6.3
8,030 reviews
Search Spirit Airlines flights
United AirlinesPriceFrom $215Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
DeltaPriceFrom $215Free CancellationRating
7.9
7,964 reviews
Search Delta flights
American AirlinesPriceFrom $275Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $315Free CancellationRating
8.0
4,242 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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sáb. 10/18
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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