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$89+ 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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — SAN
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
1 adult, Economy
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Cheapflights Tip: The best prices from Milwaukee-Mitchell to San Diego are usually found in August or July, booked 51 days in advance, depart on a Monday or Tuesday and return on a Wednesday

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 March 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$221
(Mytrip)

One-way from

$89
(FlightHub)

Popular in

March

Cheapest in

August

Average price

$456
Provider with most accurate pricing for Milwaukee-Mitchell-San Diego flight deals.
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Provider most trusted by Cheapflights users for Milwaukee-Mitchell-San Diego flights.
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From Milwaukee-Mitchell to San Diego
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One-way flight from Milwaukee-Mitchell to San Diego
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($49 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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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 March 26, 2025.

This Mytrip deal was found by Cheapflights users on 3/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/27:48 pmMKE - SAN
2 stops26h 11mSpirit Airlines
Tue 5/66:15 amSAN - MKE
1 stop5h 25mSpirit Airlines
Deal found 3/25$221
This American Airlines deal was found by Cheapflights users on 3/25. 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 5/611:23 amMKE - SAN
1 stop8h 46mAmerican Airlines
Sat 5/106:15 amSAN - MKE
1 stop5h 52mAmerican Airlines
Deal found 3/25$222
This CheapOair deal was found by Cheapflights users on 3/24. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/13:38 pmMKE - SAN
1 stop6h 16mMultiple Airlines
Mon 5/59:08 pmSAN - MKE
1 stop14h 32mMultiple Airlines
Deal found 3/24$251
This Delta deal was found by Cheapflights users on 3/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/810:18 amMKE - SAN
1 stop8h 00mDelta
Wed 4/96:20 amSAN - MKE
1 stop5h 36mDelta
Deal found 3/24$257
This Frontier deal was found by Cheapflights users on 3/25. 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 5/13:38 pmMKE - SAN
1 stop10h 35mFrontier
Sun 5/46:25 amSAN - MKE
1 stop7h 00mFrontier
Deal found 3/25$298
This United deal was found by Cheapflights users on 3/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/106:50 amMKE - SAN
2 stops10h 04mUnited Airlines
Wed 5/147:00 amSAN - MKE
1 stop8h 06mUnited Airlines
Deal found 3/25$330
This Southwest deal was found by Cheapflights users on 3/25. 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.
Tue 8/194:45 pmMKE - SAN
1 stop7h 05mSouthwest
Fri 8/226:20 amSAN - MKE
1 stop6h 25mSouthwest
Deal found 3/25$432

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 March 26, 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

Fri 5/2

7:48 pm-7:59 pm

2 stops26h 11m

San Diego

Tue 5/6

6:15 am-1:40 pm

1 stop5h 25m

$221

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

Tue 5/6

11:23 am-6:09 pm

1 stop8h 46m

San Diego

Sat 5/10

6:15 am-2:07 pm

1 stop5h 52m

$222

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

Thu 5/1

3:38 pm-7:54 pm

1 stop6h 16m

San Diego

Mon 5/5

9:08 pm-1:40 pm

1 stop14h 32m

$251

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

Tue 4/8

10:18 am-4:18 pm

1 stop8h 00m

San Diego

Wed 4/9

6:20 am-1:56 pm

1 stop5h 36m

$257

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

Thu 5/1

3:38 pm-12:13 am

1 stop10h 35m

San Diego

Sun 5/4

6:25 am-3:25 pm

1 stop7h 00m

$298

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

Sat 5/10

6:50 am-2:54 pm

2 stops10h 04m

San Diego

Wed 5/14

7:00 am-5:06 pm

1 stop8h 06m

$330

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

Tue 8/19

4:45 pm-9:50 pm

1 stop7h 05m

San Diego

Fri 8/22

6:20 am-2:45 pm

1 stop6h 25m

$432

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

Sat 5/3

7:48 pm-12:42 am

1 stop6h 54m

$89

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

Wed 6/11

5:13 pm-11:22 pm

1 stop8h 09m

$105

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

Sat 5/10

6:50 am-1:46 pm

1 stop8h 56m

$118

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 15 results
1
2

Compare providers for flights from Milwaukee to San Diego

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 San Diego in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightnetworkPrice Accuracy-Trust Score*3 stars
FareScanPrice Accuracy-Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Milwaukee-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Milwaukee-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Milwaukee-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Milwaukee-San Diego 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 Diego 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 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 March 21, 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 51 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 March 26, 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 afternoon, which can drop the price by up to 41% 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. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

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 March 26, 2025.
Southwest
8.1
Very good
4,273 reviews

Comfort

8.1

Crew

8.6

Boarding

8.2

Entertainment

7.6

Overall

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Southwest
8.1
Very good
4,273 reviews
Southwest
8.1
Very good
4,273 reviews

Comfort

8.1

Crew

8.6

Boarding

8.2

Entertainment

7.6

Overall

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Alaska Airlines
8.0
Very good
9,789 reviews
Southwest
8.1
Very good
4,273 reviews

Comfort

8.1

Crew

8.6

Boarding

8.2

Entertainment

7.6

Overall

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Delta
8.0
Very good
7,891 reviews
Southwest
8.1
Very good
4,273 reviews

Comfort

8.1

Crew

8.6

Boarding

8.2

Entertainment

7.6

Overall

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
United Airlines
7.4
Good
8,608 reviews
Southwest
8.1
Very good
4,273 reviews

Comfort

8.1

Crew

8.6

Boarding

8.2

Entertainment

7.6

Overall

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,273 reviews

Comfort

8.1

Crew

8.6

Boarding

8.2

Entertainment

7.6

Overall

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

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.

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

    Spirit Airlines, at $221, was found to be the cheapest airline from Milwaukee to San Diego.Alternate airlines to your destination round-trip include American Airlines and Delta. Spirit Airlines is priced at 39% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Milwaukee to San Diego one-way?

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $89. Users have also found prices from $105 and $118 on American Airlines and United Airlines, respectively.

  • Where are the most common layover locations when flying from Milwaukee to San Diego?

    Most of the time, Milwaukee to San Diego flights that have layovers will stop in Denver.

  • What are some popular things to do or see while on a layover in Denver?

    If you're on a layover in Denver and looking for things to do, consider visiting Coors Field, Paramount Theatre, or 16th Street Mall. Coors Field, Paramount Theatre, and 16th Street Mall can be visited by traveling about 18.4 mi, 18.6 mi, and 18.7 mi respectively from Denver Intl. Those looking to explore during their layover in Denver can rent a car from Denver Intl for about $56 per day.

  • Where are the least popular layover locations for Milwaukee to San Diego flights?

    Of the flights from Milwaukee to San Diego that have layovers, the fewest flights stop in Minneapolis.

  • 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 Milwaukee?

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

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Alternative routes for Milwaukee to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
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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 March 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$109Average$190FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$161Average$252FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$198Average$377FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$227Average$399FlexibilityNo cancel feeOn-time69%
DeltaCheapest$231Average$332FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$336Average$455FlexibilityNo cancel feeOn-time63%
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