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$75+ Cheap flights from Milwaukee to San Diego (MKE - SAN)

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 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — SAN
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Milwaukee-Mitchell to San Diego are usually found in November or May, booked 60 days in advance, depart on a Monday or Tuesday and return on a Monday

Cheap flight deals from Milwaukee to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Milwaukee (MKE) to San Diego (SAN). 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 septiembre 11, 2025.

Round-trip from

$164
(Southwest)

One-way from

$75
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$377

Good round-trip deal

$308 or less
From Milwaukee-Mitchell to San Diego
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One-way flight from Milwaukee-Mitchell to San Diego
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Highest demand for flights based on searches. 3% potential increase in price ($16 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Milwaukee-Mitchell to San Diego.
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Find flight deals from Milwaukee to San Diego

Cheapest flights from Milwaukee to San Diego
Explore the most affordable flight options available from Milwaukee to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

This Southwest deal was found by Cheapflights users on 9/10. 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.
mar. 10/214:50 pmMKE - SAN
1 stop8h 20mSouthwest
mar. 10/287:00 amSAN - MKE
1 stop6h 30mSouthwest
Deal found 9/10$164
This Southwest deal was found by Cheapflights users on 9/8. 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.
mar. 10/75:35 amMKE - SAN
1 stop6h 15mSouthwest
mar. 10/212:40 pmSAN - MKE
1 stop7h 00mSouthwest
Deal found 9/8$174
This Southwest deal was found by Cheapflights users on 9/9. 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.
sáb. 10/42:05 pmMKE - SAN
1 stop8h 30mSouthwest
mar. 10/79:10 pmSAN - MKE
1 stop10h 25mSouthwest
Deal found 9/9$175
This Southwest deal was found by Cheapflights users on 9/9. 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.
mié. 10/222:25 pmMKE - SAN
1 stop9h 45mSouthwest
sáb. 10/259:10 pmSAN - MKE
1 stop10h 15mSouthwest
Deal found 9/9$181
This Southwest deal was found by Cheapflights users on 9/9. 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.
jue. 10/305:25 pmMKE - SAN
1 stop7h 40mSouthwest
mar. 11/411:30 amSAN - MKE
1 stop7h 00mSouthwest
Deal found 9/9$186
This Southwest deal was found by Cheapflights users on 9/8. 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.
mar. 12/23:50 pmMKE - SAN
1 stop7h 15mSouthwest
sáb. 12/69:10 amSAN - MKE
1 stop11h 05mSouthwest
Deal found 9/8$188
This Southwest deal was found by Cheapflights users on 9/10. 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.
sáb. 10/185:15 pmMKE - SAN
1 stop6h 05mSouthwest
sáb. 10/259:10 pmSAN - MKE
2 stops11h 10mSouthwest
Deal found 9/10$191
This Southwest deal was found by Cheapflights users on 9/10. 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.
mar. 10/286:20 pmMKE - SAN
1 stop5h 40mSouthwest
vie. 10/316:50 amSAN - MKE
1 stop6h 30mSouthwest
Deal found 9/10$198
This Southwest deal was found by Cheapflights users on 9/9. 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.
sáb. 10/2512:15 pmMKE - SAN
1 stop7h 50mSouthwest
mié. 10/292:05 pmSAN - MKE
2 stops7h 20mSouthwest
Deal found 9/9$206

Cheapflights Fare Finder

 
Customize your flight search to find flights from Milwaukee to San Diego 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 septiembre 11, 2025.
Use the filters below to find and compare flights from Milwaukee to San Diego that are best for you.

Fly from

Milwaukee

Fly to

San Diego

Route

Depart

Return

Price

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

mar. 10/21

4:50 pm-11:10 pm

1 stop8h 20m

San Diego

mar. 10/28

7:00 am-3:30 pm

1 stop6h 30m

$164

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

sáb. 10/25

11:50 am-5:15 pm

1 stop7h 25m

San Diego

mié. 10/29

3:20 pm-11:50 pm

1 stop6h 30m

$175

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

jue. 10/30

5:25 pm-11:05 pm

1 stop7h 40m

San Diego

mar. 11/4

3:15 pm-11:00 pm

1 stop5h 45m

$186

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

mié. 12/10

5:05 am-10:10 am

1 stop7h 05m

San Diego

vie. 12/12

6:30 am-2:50 pm

1 stop6h 20m

$211

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

jue. 1/29

3:45 pm-11:05 pm

1 stop9h 20m

San Diego

sáb. 2/14

6:30 am-4:20 pm

1 stop7h 50m

$251

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

mié. 10/15

5:35 am-11:50 am

1 stop8h 15m

San Diego

mié. 10/29

6:25 am-3:10 pm

1 stop6h 45m

$251

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

vie. 10/10

7:15 pm-11:15 pm

1 stop6h 00m

San Diego

sáb. 10/18

6:20 am-3:40 pm

1 stop7h 20m

$254

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

mié. 12/3

3:46 pm-10:47 pm

1 stop9h 01m

San Diego

vie. 12/5

6:15 am-2:50 pm

1 stop30h 35m

$256

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

mié. 12/3

3:50 pm-9:05 pm

1 stop7h 15m

$87

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

mié. 10/22

2:25 pm-10:10 pm

1 stop9h 45m

$88

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 18 results
1
2

Best time to book a flight from Milwaukee to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Milwaukee with our price prediction graph.
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 Diego

How far ahead should I book a flight from Milwaukee to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from Milwaukee to San Diego. Price data was last updated on August 29, 2025.

The price you pay for your flight from Milwaukee to San Diego may vary depending on when you book. For the best chance of a lower fare, look to book 60 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 Diego?

Currently, August is the cheapest month in which you can book a flight from Milwaukee to San Diego (average of $286). Flying from Milwaukee to San Diego in March is currently the most expensive (average of $366). 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.

What is the cheapest time of day to fly from MKE to SAN?

Find hourly flight availability from Milwaukee to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 11, 2025.

When flying from Milwaukee to San Diego, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 29% versus a flight at noon.

What is the cheapest day to fly from Milwaukee to San Diego?

Use this chart to determine the cheapest time to fly round-trip from Milwaukee to San Diego. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Milwaukee to San Diego flight should consider departing on Tuesday at noon when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. 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 San Diego. Reviews last updated septiembre 11, 2025.
Read through reviews of airlines operating flights from Milwaukee to San Diego, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,960 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Spirit Airlines
6.3
Okay
8,023 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Milwaukee to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Milwaukee to San Diego?

    For as low as $164, Southwest can have you in San Diego from Milwaukee in 8h 20m. Airlines will cover a distance of 1735 mi.

  • What are the cheapest airlines flying from Milwaukee to San Diego round-trip?

    Frontier, at $121, was found to be the cheapest airline from Milwaukee to San Diego.Alternate airlines to your destination round-trip include Spirit Airlines and American Airlines. Frontier is priced at 70% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest flights from Milwaukee to San Diego?

    Looking for the cheapest flight from Milwaukee to San Diego? While on average our users pay $404, our data indicates the cheapest price to be $285. The most popular route (Milwaukee-Mitchell - San Diego), is priced around $164.

  • Can I find deals for flights from Milwaukee to San Diego that include hotel bookings?

    Yes. In addition to deals on Milwaukee to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Milwaukee to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Milwaukee to San Diego.

  • Can I find deals for business class flights from Milwaukee to San Diego?

    Yes. Cheapflights offers flight deals from Milwaukee to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Milwaukee to San Diego?

    Currently, August is the cheapest month in which you can book a flight from Milwaukee to San Diego (average of $286). Flying from Milwaukee to San Diego in March is currently the most expensive (average of $366). 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.

See more FAQs

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
La Mesa
Poway
Lemon Grove
Coronado
Imperial Beach
National City
Alpine

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Alternative routes for Milwaukee to San Diego

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Top 6 airlines flying from Milwaukee to San Diego

Discover the top 6 airlines that operate flights from Milwaukee to San Diego. 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 septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$121Average$267FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$162Average$268FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$219Average$414FlexibilityNo cancel feeOn-time71%
DeltaCheapest$256Average$407FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$259Average$407FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$303Average$441FlexibilityNo cancel feeOn-time63%

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