$165+ Cheap flights from Milwaukee (MKE) to Luis Munoz Marin Intl (SJU)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — SJU
Sep 1 — Sep 81
Round-trip
1 adult, Economy
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Cheapest flights from Milwaukee to Luis Munoz Marin IntlExplore the most affordable flight options available from Milwaukee to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 2, 2026.
Explore the most affordable flight options available from Milwaukee to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2012:10 pm
MKE
- SJU
1 stop13h 05m
Frontier
Mon 8/248:57 pm
SJU
- MKE
1 stop15h 16m
Frontier
Deal found 7/28![Frontier logo]()
$339
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/312:10 pm
MKE
- SJU
1 stop13h 05m
Frontier
Wed 9/96:42 pm
SJU
- MKE
1 stop15h 26m
Frontier
Deal found 7/30![Frontier logo]()
$341
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/299:05 am
MKE
- SJU
1 stop6h 35m
Southwest
Fri 9/46:30 am
SJU
- MKE
2 stops9h 55m
Southwest
Deal found 7/29![Southwest logo]()
$346
This American Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:00 am
MKE
- SJU
1 stop17h 15m
American Airlines
Sun 8/231:38 pm
SJU
- MKE
2 stops10h 36m
American Airlines
Deal found 7/29![American Airlines logo]()
$351
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2012:10 pm
MKE
- SJU
1 stop13h 05m
Frontier
Mon 8/243:10 am
SJU
- MKE
1 stop9h 03m
Frontier
Deal found 7/29![Frontier logo]()
$352
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:27 pm
MKE
- SJU
2 stops16h 04m
American Airlines
Fri 10/303:51 pm
SJU
- MKE
1 stop9h 06m
American Airlines
Deal found 7/30![American Airlines logo]()
$353
This American Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:35 am
MKE
- SJU
2 stops9h 22m
American Airlines
Mon 8/3110:33 am
SJU
- MKE
2 stops13h 26m
American Airlines
Deal found 7/31![American Airlines logo]()
$354
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2112:30 pm
MKE
- SJU
2 stops9h 35m
Southwest
Sun 8/239:25 pm
SJU
- MKE
1 stop12h 30m
Southwest
Deal found 7/30![Southwest logo]()
$361
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/67:18 am
MKE
- SJU
2 stops12h 20m
United Airlines
Sat 9/121:00 am
SJU
- MKE
2 stops11h 30m
United Airlines
Deal found 7/31![United Airlines logo]()
$364
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:30 am
MKE
- SJU
2 stops11h 08m
United Airlines
Sat 9/51:00 am
SJU
- MKE
2 stops12h 38m
United Airlines
Deal found 7/29![United Airlines logo]()
$365
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/295:00 am
MKE
- SJU
2 stops12h 30m
American Airlines
Fri 9/43:47 pm
SJU
- MKE
1 stop8h 12m
American Airlines
Deal found 7/30![American Airlines logo]()
$371
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:00 am
MKE
- SJU
2 stops11h 30m
American Airlines
Fri 9/41:38 pm
SJU
- MKE
2 stops10h 21m
American Airlines
Deal found 7/30![American Airlines logo]()
$373
Best flights from Milwaukee to Luis Munoz Marin IntlDiscover carefully curated flight deals from Milwaukee to Luis Munoz Marin Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 2, 2026.
Discover carefully curated flight deals from Milwaukee to Luis Munoz Marin Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 2, 2026.
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1010:48 am
MKE
- SJU
1 stop8h 12m
United Airlines
Mon 11/162:05 am
SJU
- MKE
2 stops11h 23m
United Airlines
Deal found 7/29![United Airlines logo]()
$346
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/241:55 pm
MKE
- SJU
1 stop7h 20m
Southwest
Mon 9/286:30 am
SJU
- MKE
2 stops9h 55m
Southwest
Deal found 7/28![Southwest logo]()
$346
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/712:03 pm
MKE
- SJU
1 stop6h 57m
United Airlines
Fri 11/132:05 am
SJU
- MKE
2 stops11h 23m
United Airlines
Deal found 7/30![United Airlines logo]()
$346
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2111:00 am
MKE
- SJU
1 stop11h 05m
Southwest
Sun 8/239:25 pm
SJU
- MKE
1 stop12h 30m
Southwest
Deal found 7/31![Southwest logo]()
$346
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/299:05 am
MKE
- SJU
1 stop6h 35m
Southwest
Fri 9/46:30 am
SJU
- MKE
2 stops9h 55m
Southwest
Deal found 7/29![Southwest logo]()
$346
This United Airlines deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:15 am
MKE
- SJU
2 stops13h 23m
United Airlines
Sat 9/53:56 pm
SJU
- MKE
1 stop7h 40m
United Airlines
Deal found 8/1![United Airlines logo]()
$346
This Southwest deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:00 am
MKE
- SJU
1 stop11h 05m
Southwest
Sun 8/309:25 pm
SJU
- MKE
1 stop12h 30m
Southwest
Deal found 8/1![Southwest logo]()
$346
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:00 pm
MKE
- SJU
1 stop13h 10m
Southwest
Sun 9/205:00 am
SJU
- MKE
1 stop7h 10m
Southwest
Deal found 7/29![Southwest logo]()
$346
Last-minute flights from Milwaukee to Luis Munoz Marin IntlDiscover last-minute flight deals from Milwaukee to Luis Munoz Marin Intl. Data last updated August 2, 2026 and is based on user searches.
Discover last-minute flight deals from Milwaukee to Luis Munoz Marin Intl. Data last updated August 2, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1812:10 pm
MKE
- SJU
1 stop13h 05m
Frontier
Mon 8/243:10 am
SJU
- MKE
1 stop9h 03m
Frontier
Deal found 7/31![Frontier logo]()
$376
This American Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:00 am
MKE
- SJU
1 stop17h 15m
American Airlines
Sun 8/231:38 pm
SJU
- MKE
2 stops10h 36m
American Airlines
Deal found 7/29![American Airlines logo]()
$351
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:40 am
MKE
- SJU
2 stops10h 30m
Southwest
Sun 8/239:25 pm
SJU
- MKE
1 stop12h 30m
Southwest
Deal found 7/28![Southwest logo]()
$388
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2012:10 pm
MKE
- SJU
1 stop13h 05m
Frontier
Mon 8/248:57 pm
SJU
- MKE
1 stop15h 16m
Frontier
Deal found 7/28![Frontier logo]()
$339
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2012:10 pm
MKE
- SJU
1 stop13h 05m
Frontier
Mon 8/243:10 am
SJU
- MKE
1 stop9h 03m
Frontier
Deal found 7/29![Frontier logo]()
$352
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2112:30 pm
MKE
- SJU
2 stops9h 35m
Southwest
Sun 8/239:25 pm
SJU
- MKE
1 stop12h 30m
Southwest
Deal found 7/30![Southwest logo]()
$361
This American Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/225:00 am
MKE
- SJU
2 stops8h 51m
American Airlines
Sun 8/3012:55 am
SJU
- MKE
1 stop7h 54m
American Airlines
Deal found 7/29![American Airlines logo]()
$386
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:00 am
MKE
- SJU
2 stops11h 30m
American Airlines
Fri 9/41:38 pm
SJU
- MKE
2 stops10h 21m
American Airlines
Deal found 7/30![American Airlines logo]()
$373
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/299:05 am
MKE
- SJU
1 stop6h 35m
Southwest
Fri 9/46:30 am
SJU
- MKE
2 stops9h 55m
Southwest
Deal found 7/29![Southwest logo]()
$346
This American Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:35 am
MKE
- SJU
2 stops9h 22m
American Airlines
Mon 8/3110:33 am
SJU
- MKE
2 stops13h 26m
American Airlines
Deal found 7/31![American Airlines logo]()
$354
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/295:00 am
MKE
- SJU
2 stops12h 30m
American Airlines
Fri 9/43:47 pm
SJU
- MKE
1 stop8h 12m
American Airlines
Deal found 7/30![American Airlines logo]()
$371
One-way flights from Milwaukee to Luis Munoz Marin IntlSearch for one-way flight options from Milwaukee to Luis Munoz Marin Intl. Find affordable one-way fares based on user searches. Data last updated August 2, 2026.
Search for one-way flight options from Milwaukee to Luis Munoz Marin Intl. Find affordable one-way fares based on user searches. Data last updated August 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/258:10 pm
MKE
- SJU
1 stop19h 24m
Frontier
Deal found 8/1![Frontier logo]()
$165
This Trip.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:10 pm
MKE
- SJU
1 stop16h 06m
Frontier
Deal found 7/31![Frontier logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2012:10 pm
MKE
- SJU
1 stop13h 05m
Frontier
Deal found 7/31![Frontier logo]()
$170
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/285:00 am
MKE
- SJU
2 stops14h 38m
United Airlines
Deal found 7/29![United Airlines logo]()
$173
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:20 am
MKE
- SJU
2 stops11h 13m
American Airlines
Deal found 7/30![American Airlines logo]()
$177
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:28 am
MKE
- SJU
2 stops11h 05m
American Airlines
Deal found 7/30![American Airlines logo]()
$178
This American Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:27 pm
MKE
- SJU
2 stops16h 04m
American Airlines
Deal found 7/31![American Airlines logo]()
$179
This American Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/95:53 pm
MKE
- SJU
2 stops16h 07m
American Airlines
Deal found 7/29![American Airlines logo]()
$182
This Frontier deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/105:33 pm
MKE
- SJU
1 stop7h 09m
Frontier
Deal found 7/30![Frontier logo]()
$198
This American Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/85:01 am
MKE
- SJU
2 stops12h 32m
American Airlines
Deal found 7/31![American Airlines logo]()
$203
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/106:50 pm
MKE
- SJU
2 stops13h 45m
American Airlines
Deal found 7/30![American Airlines logo]()
$213
Find flight deals from Milwaukee to Luis Munoz Marin Intl
Discover tips and strategies to find the most affordable flight options for your journey from Milwaukee (MKE) to Luis Munoz Marin Intl (SJU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $339 (Kiwi.com) |
One-way from | $165 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $418 |
Cheapflights Fare Finder
Customize your flight search to find flights from Milwaukee to Luis Munoz Marin Intl 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, Cheapflights users made 2,558,603 searches. Data last updated August 2, 2026.
Use the filters below to find and compare flights from Milwaukee to San Juan Luis Munoz Marin Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
MilwaukeeSan Juan
MKE - SJU
MKESJU
Milwaukee-Mitchell
Tue 11/10
10:48 am-9:00 pm
1 stop8h 12m
San Juan Luis Munoz Marin Intl
Mon 11/16
2:05 am-11:28 am
2 stops11h 23m
$346
MilwaukeeSan Juan
MKE - SJU
MKESJU
Milwaukee-Mitchell
Thu 9/24
1:55 pm-10:15 pm
1 stop7h 20m
San Juan Luis Munoz Marin Intl
Mon 9/28
6:30 am-3:25 pm
2 stops9h 55m
$346
MilwaukeeSan Juan
MKE - SJU
MKESJU
Milwaukee-Mitchell
Sat 11/7
12:03 pm-9:00 pm
1 stop6h 57m
San Juan Luis Munoz Marin Intl
Fri 11/13
2:05 am-11:28 am
2 stops11h 23m
$346
MilwaukeeSan Juan
MKE - SJU
MKESJU
Milwaukee-Mitchell
Fri 8/21
11:00 am-11:05 pm
1 stop11h 05m
San Juan Luis Munoz Marin Intl
Sun 8/23
9:25 pm-8:55 am
1 stop12h 30m
$346
Quickest round-trip
MilwaukeeSan Juan
MKE - SJU
MKESJU
Milwaukee-Mitchell
Sat 8/29
9:05 am-4:40 pm
1 stop6h 35m
San Juan Luis Munoz Marin Intl
Fri 9/4
6:30 am-3:25 pm
2 stops9h 55m
$346
MilwaukeeSan Juan
MKE - SJU
MKESJU
Milwaukee-Mitchell
Sat 8/29
6:15 am-8:38 pm
2 stops13h 23m
San Juan Luis Munoz Marin Intl
Sat 9/5
3:56 pm-10:36 pm
1 stop7h 40m
$346
MilwaukeeSan Juan
MKE - SJU
MKESJU
Milwaukee-Mitchell
Thu 8/27
11:00 am-11:05 pm
1 stop11h 05m
San Juan Luis Munoz Marin Intl
Sun 8/30
9:25 pm-8:55 am
1 stop12h 30m
$346
MilwaukeeSan Juan
MKE - SJU
MKESJU
Milwaukee-Mitchell
Thu 9/17
7:00 pm-9:10 am
1 stop13h 10m
San Juan Luis Munoz Marin Intl
Sun 9/20
5:00 am-11:10 am
1 stop7h 10m
$346
Cheapest one-way
MilwaukeeSan Juan
MKE - SJU
MKESJU
Milwaukee-Mitchell
Wed 10/21
10:42 am-11:50 pm
2 stops12h 08m
$173
Quickest one-way
MilwaukeeSan Juan
MKE - SJU
MKESJU
Milwaukee-Mitchell
Tue 9/22
2:05 pm-10:05 pm
1 stop7h 00m
$173
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from Milwaukee to Luis Munoz Marin Intl
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Milwaukee to Luis Munoz Marin Intl in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Milwaukee-San Juan Luis Munoz Marin Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Milwaukee-San Juan Luis Munoz Marin Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Milwaukee-San Juan Luis Munoz Marin Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Milwaukee-San Juan Luis Munoz Marin Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Milwaukee-San Juan Luis Munoz Marin Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Milwaukee to Luis Munoz Marin Intl
Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl from Milwaukee with our price prediction graph.
MKE-SJU
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Milwaukee to San Juan Luis Munoz Marin Intl Airport
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How far ahead should I book a flight from Milwaukee to San Juan Luis Munoz Marin Intl Airport?
The price you pay for your flight from Milwaukee to San Juan Luis Munoz Marin Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 52 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Milwaukee to San Juan Luis Munoz Marin Intl Airport?
Currently, October is the cheapest month in which you can book a flight from Milwaukee to San Juan Luis Munoz Marin Intl Airport (average of $326). Flying from Milwaukee to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of $717). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Milwaukee to San Juan Luis Munoz Marin Intl Airport?
Airfare is below average for this route at the moment.
Milwaukee to San Juan Luis Munoz Marin Intl Airport flights typically cost between $368 and $516 in August.The cheapest round-trip price found within the last 5 days was $339 on Frontier (Aug 20-Aug 24).
What’s the top layover airport for flights from Milwaukee to San Juan Luis Munoz Marin Intl Airport?
Share of 1-stop round-trip flights from Milwaukee to San Juan Luis Munoz Marin Intl Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.
Orlando (MCO) – chosen by Cheapflights users on 67% of 1-stop itineraries from Milwaukee to San Juan Luis Munoz Marin Intl Airport on Cheapflights.
What’s the cheapest layover airport for flights from Milwaukee to San Juan Luis Munoz Marin Intl Airport?
Average round-trip fare for 1-stop flights from Milwaukee to San Juan Luis Munoz Marin Intl Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Charlotte (CLT) is the most affordable 1-stop option, with an average round-trip price of $326.
What’s the fastest layover option from Milwaukee to San Juan Luis Munoz Marin Intl Airport?
Shortest average travel time for 1-stop one-way flights from Milwaukee to San Juan Luis Munoz Marin Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Charlotte (CLT) have the shortest average one-way travel time for 1-stop routes: 6h 50m.
Which airport typically offers the quickest layover for flights from Milwaukee to San Juan Luis Munoz Marin Intl Airport?
Average layover duration for 1-stop one-way flights from Milwaukee to San Juan Luis Munoz Marin Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Charlotte (CLT) offer the fastest connection on this route, with an average layover time of 1h 35m.
Reviews of airlines servicing Luis Munoz Marin Intl
Get insights into the airlines that provide service to Luis Munoz Marin Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Luis Munoz Marin Intl. Reviews last updated August 2, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Milwaukee to San Juan Luis Munoz Marin Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Related info for your journey
Find useful and relevant information for your journey from Milwaukee to Luis Munoz Marin Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near San Juan Luis Munoz Marin Intl Airport?
Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locationsFajardo
Luquillo
Dorado
Rio Grande
Humacao
Bayamón
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Top 5 airlines flying from Milwaukee to Luis Munoz Marin Intl
Discover the top 5 airlines that operate flights from Milwaukee to Luis Munoz Marin Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$143 | Average$398 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$156 | Average$360 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$235 | Average$455 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$256 | Average$497 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$317 | Average$483 | FlexibilityNo cancel fee | On-time63% |