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

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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — MKE
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheapflights Tip: The best prices from San Diego to Milwaukee-Mitchell are usually found in July or August, booked 73 days in advance, depart on a Tuesday or Monday and return on a Monday

Cheap flight deals from San Diego to Milwaukee

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Milwaukee (MKE). 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 July 3, 2025.

Round-trip from

$191
(Priceline)

One-way from

$75
(Priceline)

Popular in

January

Cheapest in

July

Average price

$326
From San Diego to Milwaukee-Mitchell
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One-way flight from San Diego to Milwaukee-Mitchell
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Highest demand for flights based on searches. 14% potential increase in price ($71 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from San Diego to Milwaukee

Cheapest flights from San Diego to Milwaukee
Explore the most affordable flight options available from San Diego to Milwaukee. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This Priceline deal was found by Cheapflights users on 7/3. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/246:25 amSAN - MKE
1 stop10h 47mFrontier
Mon 10/277:57 pmMKE - SAN
1 stop5h 53mFrontier
Deal found 7/3$161
This Priceline deal was found by Cheapflights users on 7/2. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/316:15 amSAN - MKE
1 stop5h 41mSpirit Airlines
Mon 8/42:51 pmMKE - SAN
1 stop10h 15mSpirit Airlines
Deal found 7/2$191
This Priceline deal was found by Cheapflights users on 7/1. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/106:15 amSAN - MKE
1 stop5h 41mMultiple Airlines
Mon 8/187:58 pmMKE - SAN
1 stop5h 54mMultiple Airlines
Deal found 7/1$253

Cheapflights Fare Finder

Customize your flight search to find flights from San Diego to Milwaukee 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 July 3, 2025.
Use the filters below to find and compare flights from San Diego to Milwaukee that are best for you.

Fly from

San Diego

Fly to

Milwaukee

Route

Depart

Return

Price

San DiegoMilwaukee

SAN - MKE

SANMKE

San Diego

Fri 10/24

6:25 am-7:12 pm

1 stop10h 47m

Milwaukee-Mitchell

Mon 10/27

7:57 pm-11:50 pm

1 stop5h 53m

$161

San DiegoMilwaukee

SAN - MKE

SANMKE

San Diego

Thu 7/31

6:15 am-1:56 pm

1 stop5h 41m

Milwaukee-Mitchell

Mon 8/4

2:51 pm-11:06 pm

1 stop10h 15m

$191

San DiegoMilwaukee

SAN - MKE

SANMKE

San Diego

Thu 8/14

6:15 am-8:30 pm

1 stop12h 15m

Milwaukee-Mitchell

Mon 8/18

7:58 pm-11:52 pm

1 stop5h 54m

$219

San DiegoMilwaukee

SAN - MKE

SANMKE

San Diego

Mon 9/1

6:25 am-7:12 pm

1 stop10h 47m

$75

San DiegoMilwaukee

SAN - MKE

SANMKE

San Diego

Sun 9/28

8:16 am-9:01 pm

1 stop10h 45m

$77

San DiegoMilwaukee

SAN - MKE

SANMKE

San Diego

Sat 8/2

7:06 pm-1:56 pm

1 stop16h 50m

$137

San DiegoMilwaukee

SAN - MKE

SANMKE

San Diego

Thu 10/23

12:30 pm-6:30 pm

Nonstop4h 00m

$144

San DiegoMilwaukee

SAN - MKE

SANMKE

San Diego

Tue 8/12

6:45 am-5:01 pm

1 stop8h 16m

$147

San DiegoMilwaukee

SAN - MKE

SANMKE

San Diego

Tue 9/2

11:46 am-12:02 am

1 stop10h 16m

$153

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Best time to book a flight from San Diego to Milwaukee

Have a flexible travel schedule? Discover the best time to fly to Milwaukee from San Diego 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 San Diego to Milwaukee

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

Use this chart to determine the optimal time to book a round-trip flight from San Diego to Milwaukee. Price data was last updated on June 27, 2025.

The best time to book flights from San Diego to Milwaukee is 73 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, February is the cheapest month in which you can book a flight from San Diego to Milwaukee (average of $280). Flying from San Diego to Milwaukee in June is currently the most expensive (average of $376). 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 SAN to MKE?

Find hourly flight availability from San Diego to Milwaukee. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

It’s optimal to fly from San Diego to Milwaukee in the evening. By choosing this option you can save up to 44% on the cost of your flight, compared to a flight in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from San Diego to Milwaukee. Price data was last updated on June 29, 2025.

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

Reviews of airlines servicing Milwaukee

Get insights into the airlines that provide service to Milwaukee. 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 Milwaukee. Reviews last updated July 3, 2025.
See what other customers who have flown with Alaska Airlines, United Airlines, and Spirit Airlines from San Diego to Milwaukee have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Spirit Airlines
6.3
Okay
8,086 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Frontier
5.9
Fair
3,286 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from San Diego to Milwaukee. 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 San Diego to Milwaukee round-trip?

    Flying on Spirit Airlines is currently your cheapest option to Milwaukee, with prices starting at $191. Additional round-trip tickets that might be worth considering are offered by Frontier and Alaska Airlines, with the lowest prices starting at $194 and $302, respectively. Spirit Airlines is currently priced 53% below the average price you’ll pay for this route.

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

    $75 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Spirit Airlines and United Airlines, with prices starting from $77 and $149, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Diego to Milwaukee 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 San Diego to Milwaukee?

    Currently, February is the cheapest month in which you can book a flight from San Diego to Milwaukee (average of $280). Flying from San Diego to Milwaukee in June is currently the most expensive (average of $376). 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
Mequon
Oak Creek
Sheboygan
Wauwatosa

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Alternative routes for San Diego to Milwaukee

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Top 6 airlines flying from San Diego to Milwaukee

Discover the top 6 airlines that operate flights from San Diego to Milwaukee. 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$119Average$233FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$151Average$253FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$172Average$394FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$358FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$256Average$499FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$359Average$461FlexibilityNo cancel feeOn-time63%

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