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 11/18. 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

Discover deals from 900+ travel sites with momondo.

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

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
10:30 am - 9:00 pmMKE-SJU
8h 30m1 stop
United Airlines Logo
3:46 pm - 10:59 pmSJU-MKE
9h 13m1 stop
$235United Airlines
Find Deal
mar., feb. 3 - mar., feb. 10
United Airlines Logo
7:50 am - 9:26 pmMKE-SJU
11h 36m1 stop
United Airlines Logo
2:05 am - 10:15 amSJU-MKE
10h 10m1 stop
$261United Airlines
Find Deal
dom., ene. 18 - vie., ene. 23
Southwest Logo
5:45 am - 6:30 pmMKE-SJU
10h 45m2 stops
Southwest Logo
6:00 am - 5:00 pmSJU-MKE
13h 00m1 stop
$274Southwest
Find Deal
sáb., ene. 31 - sáb., feb. 7
Delta Logo
5:20 am - 2:30 pmMKE-SJU
7h 10m1 stop
Delta Logo
6:27 pm - 11:46 pmSJU-MKE
7h 19m1 stop
$276Delta
Find Deal
lun., ene. 19 - vie., ene. 30
Frontier Logo
6:02 pm - 2:50 amMKE-SJU
6h 48m1 stop
Frontier Logo
11:05 am - 5:04 pmSJU-MKE
7h 59m1 stop
$281Frontier
Find Deal
mié., ene. 21 - mié., ene. 28
Frontier Logo
7:40 pm - 2:50 amMKE-SJU
29h 10m1 stop
Frontier Logo
3:55 am - 6:45 pmSJU-MKE
16h 50m1 stop
$286Frontier
Find Deal
jue., feb. 5 - mié., feb. 11
Delta Logo
2:34 pm - 11:44 pmMKE-SJU
7h 10m1 stop
Delta Logo
7:30 am - 4:29 pmSJU-MKE
10h 59m1 stop
$300Delta
Find Deal
lun., ene. 12 - sáb., ene. 17
American Airlines Logo
6:00 am - 6:22 pmMKE-SJU
10h 22m2 stops
American Airlines Logo
8:20 am - 11:23 pmSJU-MKE
17h 03m1 stop
$308American Airlines
Find Deal
mar., feb. 3 - mar., feb. 10
American Airlines Logo
6:14 am - 8:58 pmMKE-SJU
12h 44m1 stop
American Airlines Logo
8:18 am - 2:17 pmSJU-MKE
7h 59m1 stop
$314American Airlines
Find Deal
vie., nov. 28 - sáb., dic. 6
Southwest Logo
3:15 pm - 12:10 amMKE-SJU
6h 55m1 stop
Southwest Logo
5:30 am - 2:40 pmSJU-MKE
11h 10m2 stops
$344Southwest
Find Deal
sáb., ene. 17 - sáb., ene. 24

United Airlines flights from Milwaukee to San Juan

Our best United Airlines deals on Milwaukee to San Juan flight tickets
United Airlines
Feb 3
MKE10:30 amMilwaukee-Mitchell
8h 30m
1 stop
SJU9:00 pmSan Juan Luis Munoz Marin Intl
Feb 10
SJU3:46 pmSan Juan Luis Munoz Marin Intl
9h 13m
1 stop
MKE10:59 pmMilwaukee-Mitchell
$235
Find similar
United Airlines
Jan 18
MKE7:50 amMilwaukee-Mitchell
11h 36m
1 stop
SJU9:26 pmSan Juan Luis Munoz Marin Intl
Jan 23
SJU2:05 amSan Juan Luis Munoz Marin Intl
10h 10m
1 stop
MKE10:15 amMilwaukee-Mitchell
$261
Find similar
United Airlines
Jan 21
MKE8:33 amMilwaukee-Mitchell
10h 53m
2 stops
SJU9:26 pmSan Juan Luis Munoz Marin Intl
Jan 27
SJU2:15 pmSan Juan Luis Munoz Marin Intl
10h 41m
2 stops
MKE10:56 pmMilwaukee-Mitchell
$304
Find similar

Southwest flights from Milwaukee to San Juan

Our best Southwest deals on Milwaukee to San Juan flight tickets
Southwest
Jan 31
MKE5:45 amMilwaukee-Mitchell
10h 45m
2 stops
SJU6:30 pmSan Juan Luis Munoz Marin Intl
Feb 7
SJU6:00 amSan Juan Luis Munoz Marin Intl
13h 00m
1 stop
MKE5:00 pmMilwaukee-Mitchell
$274
Find similar
Southwest
Jan 17
MKE3:15 pmMilwaukee-Mitchell
6h 55m
1 stop
SJU12:10 amSan Juan Luis Munoz Marin Intl
Jan 24
SJU5:30 amSan Juan Luis Munoz Marin Intl
11h 10m
2 stops
MKE2:40 pmMilwaukee-Mitchell
$344
Find similar
Southwest
Nov 2
MKE5:00 amMilwaukee-Mitchell
10h 05m
2 stops
SJU5:05 pmSan Juan Luis Munoz Marin Intl
Nov 6
SJU3:30 pmSan Juan Luis Munoz Marin Intl
9h 30m
2 stops
MKE11:00 pmMilwaukee-Mitchell
$399
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 octubre 30, 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

mar. 2/3

10:30 am-9:00 pm

1 stop8h 30m

San Juan Luis Munoz Marin Intl

mar. 2/10

3:46 pm-10:59 pm

1 stop9h 13m

$235

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

dom. 1/18

7:50 am-9:26 pm

1 stop11h 36m

San Juan Luis Munoz Marin Intl

vie. 1/23

2:05 am-10:15 am

1 stop10h 10m

$261

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

sáb. 1/31

5:45 am-6:30 pm

2 stops10h 45m

San Juan Luis Munoz Marin Intl

sáb. 2/7

6:00 am-5:00 pm

1 stop13h 00m

$274

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

lun. 1/19

5:20 am-2:30 pm

1 stop7h 10m

San Juan Luis Munoz Marin Intl

vie. 1/30

6:27 pm-11:46 pm

1 stop7h 19m

$276

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

mié. 1/21

6:02 pm-2:50 am

1 stop6h 48m

San Juan Luis Munoz Marin Intl

mié. 1/28

11:05 am-5:04 pm

1 stop7h 59m

$281

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

jue. 2/5

7:40 pm-2:50 am

1 stop29h 10m

San Juan Luis Munoz Marin Intl

mié. 2/11

3:55 am-6:45 pm

1 stop16h 50m

$286

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

lun. 1/12

2:34 pm-11:44 pm

1 stop7h 10m

San Juan Luis Munoz Marin Intl

sáb. 1/17

7:30 am-4:29 pm

1 stop10h 59m

$300

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

mar. 2/3

6:00 am-6:22 pm

2 stops10h 22m

San Juan Luis Munoz Marin Intl

mar. 2/10

8:20 am-11:23 pm

1 stop17h 03m

$308

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

vie. 11/28

6:14 am-8:58 pm

1 stop12h 44m

San Juan Luis Munoz Marin Intl

sáb. 12/6

8:18 am-2:17 pm

1 stop7h 59m

$314

MilwaukeeSan Juan

MKE - SJU

MKESJU

Milwaukee-Mitchell

sáb. 1/17

3:15 pm-12:10 am

1 stop6h 55m

San Juan Luis Munoz Marin Intl

sáb. 1/24

5:30 am-2:40 pm

2 stops11h 10m

$344

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 September, then October is your next best option. Flight prices from Milwaukee to San Juan during October average around $338.

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 $436 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 $299 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 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 $129Free CancellationRating
5.8
3,123 reviews
Search Frontier flights
United AirlinesPriceFrom $202Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights
DeltaPriceFrom $215Free CancellationRating
7.9
7,993 reviews
Search Delta flights
Spirit AirlinesPriceFrom $226Free CancellationRating
6.3
8,115 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $273Free CancellationRating
7.2
11,030 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

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
sáb. 11/29
sáb. 12/6
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