Cheap Flights from Milwaukee, WI to San Juan from $162

On Cheapflightsplus.com you will find 141 connecting flights from Milwaukee to San Juan. You can compare airfare deals from 4 airlines and multiple travel sites from $162, book and save on cheap plane tickets and last minute offers. Also check out MKE-SJU flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Milwaukee to San Juan Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $162 (one-way), $278 (round-trip).
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Full flight schedule will help you in detecting at what time planes fly from Milwaukee to San Juan. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
Departure Arrival Flight Details Flight Duration Price
07:45 — 16:46
07:45 — 09:55 NK3901 Spirit Airlines
Milwaukee — Detroit
2h 21m stop
12:16 — 16:46 NK3898 Spirit Airlines
Detroit — San Juan
8h 1m
including layover
Find flight
from$169
07:45 — 01:11
+1 day
07:45 — 09:55 NK3901 Spirit Airlines
Milwaukee — Detroit
3h 18m stop
13:13 — 15:55 NK3782 Spirit Airlines
Detroit — Orlando
6h 22m stop
22:17 — 01:11 NK3166 Spirit Airlines
Orlando — San Juan
16h 26m
including layover
Find flight
from$227
12:02 — 19:19
+1 day
12:02 — 13:30 NK2027 Spirit Airlines
Milwaukee — Nashville
16h 30m stop
06:00 — 09:17 NK2407 Spirit Airlines
Nashville — Miami
7h 28m stop
16:45 — 19:19 NK2221 Spirit Airlines
Miami — San Juan
30h 17m
including layover
Find flight
from$240
14:51 — 15:43
+1 day
14:51 — 16:57 NK1445 Spirit Airlines
Milwaukee — Las Vegas
2h 11m stop
19:08 — 23:51 NK1271 Spirit Airlines
Las Vegas — Dallas
10h 4m stop
09:55 — 15:43 NK1379 Spirit Airlines
Dallas — San Juan
23h 52m
including layover
Find flight
from$250
15:45 — 23:54
+1 day
15:45 — 16:50 UA5502 United Airlines
Milwaukee — Chicago
1h 13m stop
18:03 — 23:54 UA695 United Airlines
Chicago — San Juan
7h 9m
including layover
Find flight
from$162
16:02 — 10:29
+1 day
16:02 — 18:54 NK1670 Spirit Airlines
Milwaukee — Baltimore
11h 54m stop
06:48 — 10:29 NK1622 Spirit Airlines
Baltimore — San Juan
17h 27m
including layover
Find flight
from$183
16:02 — 21:50
+1 day
16:02 — 18:54 NK1670 Spirit Airlines
Milwaukee — Baltimore
16h 39m stop
11:33 — 14:06 NK2175 Spirit Airlines
Baltimore — Houston
2h 18m stop
16:24 — 21:50 NK1626 Spirit Airlines
Houston — San Juan
28h 48m
including layover
Find flight
from$203
16:02 — 01:35
+2 days
16:02 — 18:54 NK1670 Spirit Airlines
Milwaukee — Baltimore
23h 43m stop
18:37 — 21:07 NK1961 Spirit Airlines
Baltimore — Orlando
1h 36m stop
22:43 — 01:35 NK1514 Spirit Airlines
Orlando — San Juan
32h 33m
including layover
Find flight
from$212
16:37 — 01:35
+1 day
16:37 — 20:21 NK1351 Spirit Airlines
Milwaukee — Orlando
2h 22m stop
22:43 — 01:35 NK1514 Spirit Airlines
Orlando — San Juan
7h 58m
including layover
Find flight
from$177
19:14 — 10:48
+1 day
19:14 — 22:58 NK2483 Spirit Airlines
Milwaukee — Orlando
9h 2m stop
08:00 — 10:48 NK1989 Spirit Airlines
Orlando — San Juan
14h 34m
including layover
Find flight
from$176
19:14 — 01:35
+2 days
19:14 — 20:42 NK1769 Spirit Airlines
Milwaukee — Nashville
17h 39m stop
14:21 — 17:19 NK1747 Spirit Airlines
Nashville — Orlando
5h 24m stop
22:43 — 01:35 NK1514 Spirit Airlines
Orlando — San Juan
29h 21m
including layover
Find flight
from$212
19:14 — 18:36
+1 day
19:14 — 22:58 NK2483 Spirit Airlines
Milwaukee — Orlando
7h 7m stop
06:05 — 09:03 NK2090 Spirit Airlines
Orlando — Boston
5h 39m stop
14:42 — 18:36 NK1803 Spirit Airlines
Boston — San Juan
22h 22m
including layover
Find flight
from$241
19:14 — 19:19
+1 day
19:14 — 22:58 NK2483 Spirit Airlines
Milwaukee — Orlando
9h 27m stop
08:25 — 09:37 NK2196 Spirit Airlines
Orlando — Miami
7h 8m stop
16:45 — 19:19 NK2221 Spirit Airlines
Miami — San Juan
23h 5m
including layover
Find flight
from$241
20:51 — 09:56
+1 day
20:51 — 00:41 NK2910 Spirit Airlines
Milwaukee — Orlando
6h 19m stop
07:00 — 09:56 NK3159 Spirit Airlines
Orlando — San Juan
12h 5m
including layover
Find flight
from$184
20:51 — 01:11
+2 days
20:51 — 00:41 NK2910 Spirit Airlines
Milwaukee — Orlando
21h 36m stop
22:17 — 01:11 NK3166 Spirit Airlines
Orlando — San Juan
27h 20m
including layover
Find flight
from$221
*Departure and arrival times - local. Updated on September 18, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Milwaukee to San Juan depends on and how to choose the most interesting flight option for you.

Distance between Milwaukee and San Juan is 3414 miles. Time difference between the cities is 2h. Airplanes depart 05:15 to 21:20 from 3 Milwaukee airports and arrive 05:15 to 21:20 to 2 San Juan airports. Average flight time is 20h 42m.

  • The fastest flight 6h 44m
  • Average flight time 20h 42m
  • The earliest flight 05:15
  • The latest flight 21:20
  • Distance 2122 ml

The cheapest months to travel to San Juan are august (from 152 $), july (from 176 $), september (from 184 $).

The most expensive months are january (from 537 $), february (from 455 $), september (from 184 $).

What is the lowest airfare Milwaukee to San Juan?

The cheapest plane ticket found by our users is $162. This airfare is for economy class on one-way UA5502 flight by United Airlines for July 6, 2025 which leaves General Mitchell in Milwaukee at 15:45 am and arrives at San Juan Luis Munoz Marin Intl at 23:54.

Economy class
$162
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Business class
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First class
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Popular Airlines on the Route

The flight Milwaukee — San Juan is served by 4 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 14 departures per week at the price of from $ 739 . And the most expensive tickets are offered by Alaska Airlines airline - from $ 1866.

Direct flights

There’re no direct flights on this route. Try flights with stops.

Connecting Flights

There are 141 flights with layovers on the route. The fastest connecting flight is UA4803 by United Airlines takes 6h 44m and the cheapest is UA5502 by United Airlines for $162.

  • AS - Alaska Airlines
    from $739
    Find
  • SY - Sun Country Airlines
    from $261
    Find
  • UA - United Airlines
    from $162
    Find
  • NK - Spirit Airlines
    from $169
    Find
See more connecting flights

Airports

You can fly from Milwaukee to San Juan from 3 airports (Lawrence J Timmerman, Milwaukee General Mitchell, General Mitchell).

Milwaukee airports

  • Lawrence J Timmerman-MWC
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  • Milwaukee General Mitchell-ZML
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  • General Mitchell-MKE
    from $162
    Find

San Juan airports

  • Isla Grande-SIG
    Find
  • Luis Munoz Marin Intl-SJU
    Find

How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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