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$119+ 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 12/13. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — MKE
Oct 31 — Nov 71
Fri 10/31
Fri 11/7
1 adult, Economy
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Cheapflights Tip: The best prices from San Diego to Milwaukee-Mitchell are usually found in May or October, booked 26 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 October 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$215
(Priceline)

One-way from

$119
(Southwest)

Popular in

January

Cheapest in

May

Average price

$390

Good round-trip deal

$313 or less

Good one-way deal

$189 or less
Provider with most accurate pricing for San Diego-Milwaukee-Mitchell flight deals.
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Provider most trusted by Cheapflights users for San Diego-Milwaukee-Mitchell flights.
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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. 8% potential increase in price ($39 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from San Diego to Milwaukee-Mitchell.
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Price to beat on a one-way flight from San Diego to Milwaukee-Mitchell.
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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 October 1, 2025.

This Priceline deal was found by Cheapflights users on 9/29. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/246:41 amSAN - MKE
1 stop10h 37mFrontier
Mon 11/38:04 pmMKE - SAN
1 stop5h 46mFrontier
Deal found 9/29$215
This Priceline deal was found by Cheapflights users on 9/29. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/76:41 amSAN - MKE
1 stop10h 38mFrontier
Mon 11/108:04 pmMKE - SAN
1 stop5h 46mFrontier
Deal found 9/29$251
This Delta deal was found by Cheapflights users on 9/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/610:20 pmSAN - MKE
1 stop8h 24mDelta
Sun 11/96:10 amMKE - SAN
1 stop8h 56mDelta
Deal found 9/30$257
This Delta deal was found by Cheapflights users on 9/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/210:00 pmSAN - MKE
1 stop8h 45mDelta
Tue 12/96:00 amMKE - SAN
1 stop9h 09mDelta
Deal found 9/30$267
This Kiwi.com deal was found by Cheapflights users on 10/1. 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.
Thu 10/166:25 amSAN - MKE
1 stop10h 18mMultiple Airlines
Mon 10/207:38 pmMKE - SAN
1 stop27h 42mMultiple Airlines
Deal found 10/1$276
This United Airlines deal was found by Cheapflights users on 9/29. 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.
Thu 10/307:00 amSAN - MKE
1 stop8h 17mUnited Airlines
Wed 11/55:00 amMKE - SAN
1 stop6h 39mUnited Airlines
Deal found 9/29$277
This United Airlines deal was found by Cheapflights users on 10/1. 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.
Fri 12/511:02 amSAN - MKE
2 stops8h 28mUnited Airlines
Mon 12/85:35 pmMKE - SAN
1 stop6h 55mUnited Airlines
Deal found 10/1$282
This Kiwi.com deal was found by Cheapflights users on 10/1. 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.
Thu 10/236:25 amSAN - MKE
1 stop10h 18mMultiple Airlines
Mon 10/277:38 pmMKE - SAN
2 stops27h 46mMultiple Airlines
Deal found 10/1$284
This Alaska Airlines deal was found by Cheapflights users on 9/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/212:41 pmSAN - MKE
2 stops24h 14mAlaska Airlines
Fri 12/53:51 pmMKE - SAN
1 stop8h 56mAlaska Airlines
Deal found 9/29$287
This Delta deal was found by Cheapflights users on 10/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2310:20 pmSAN - MKE
1 stop8h 29mDelta
Fri 1/25:49 pmMKE - SAN
1 stop8h 06mDelta
Deal found 10/1$298
This United Airlines deal was found by Cheapflights users on 9/29. 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 12/211:02 amSAN - MKE
2 stops8h 28mUnited Airlines
Tue 12/98:00 amMKE - SAN
1 stop7h 04mUnited Airlines
Deal found 9/29$300
This Southwest deal was found by Cheapflights users on 9/29. 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 10/307:10 amSAN - MKE
1 stop8h 15mSouthwest
Wed 11/510:30 amMKE - SAN
2 stops8h 25mSouthwest
Deal found 9/29$302

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 October 1, 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

Sat 11/1

10:30 pm-9:44 am

1 stop9h 14m

Milwaukee-Mitchell

Mon 11/3

5:15 pm-11:14 pm

1 stop7h 59m

$257

San DiegoMilwaukee

SAN - MKE

SANMKE

San Diego

Thu 11/6

10:20 pm-8:44 am

1 stop8h 24m

Milwaukee-Mitchell

Sun 11/9

6:10 am-1:06 pm

1 stop8h 56m

$257

San DiegoMilwaukee

SAN - MKE

SANMKE

San Diego

Sat 11/8

11:20 am-9:23 pm

1 stop8h 03m

Milwaukee-Mitchell

Tue 11/11

6:05 am-11:31 am

1 stop7h 26m

$277

San DiegoMilwaukee

SAN - MKE

SANMKE

San Diego

Fri 11/7

12:30 pm-9:10 pm

1 stop6h 40m

Milwaukee-Mitchell

Sun 11/9

5:50 am-11:50 am

1 stop8h 00m

$277

San DiegoMilwaukee

SAN - MKE

SANMKE

San Diego

Fri 12/5

12:50 pm-9:30 pm

1 stop6h 40m

Milwaukee-Mitchell

Mon 12/8

3:50 pm-10:30 pm

2 stops8h 40m

$282

San DiegoMilwaukee

SAN - MKE

SANMKE

San Diego

Sat 11/1

6:45 am-5:17 pm

2 stops8h 32m

Milwaukee-Mitchell

Tue 11/4

5:00 am-9:39 am

1 stop6h 39m

$282

San DiegoMilwaukee

SAN - MKE

SANMKE

San Diego

Fri 10/17

10:20 pm-8:44 am

1 stop8h 24m

Milwaukee-Mitchell

Sun 10/19

6:00 am-12:55 pm

1 stop8h 55m

$282

San DiegoMilwaukee

SAN - MKE

SANMKE

San Diego

Sat 11/1

9:55 am-4:00 pm

Nonstop4h 05m

Milwaukee-Mitchell

Tue 11/4

11:05 am-6:55 pm

1 stop9h 50m

$298

San DiegoMilwaukee

SAN - MKE

SANMKE

San Diego

Tue 12/23

10:20 pm-8:49 am

1 stop8h 29m

Milwaukee-Mitchell

Thu 1/1

7:00 am-2:32 pm

1 stop9h 32m

$298

San DiegoMilwaukee

SAN - MKE

SANMKE

San Diego

Tue 12/2

11:02 am-9:30 pm

2 stops8h 28m

Milwaukee-Mitchell

Tue 12/9

8:00 am-1:04 pm

1 stop7h 04m

$300

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/30

Showing 1-10 of 20 results
1
2

Compare providers for flights from San Diego to Milwaukee

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 San Diego to Milwaukee in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust 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 San Diego-Milwaukee flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-Milwaukee flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-Milwaukee flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Diego-Milwaukee 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 San Diego-Milwaukee 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 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 September 26, 2025.

The best time to book flights from San Diego to Milwaukee is 26 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 October 1, 2025.

It’s optimal to fly from San Diego to Milwaukee in the evening. By choosing this option you can save up to 57% on the cost of your flight, compared to a flight at noon.

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 September 28, 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 October 1, 2025.
See what other customers who have flown with Southwest, Delta, and United 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.
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

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

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

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
7,961 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

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
8,929 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

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
11,030 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

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
8,066 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

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 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.

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

    Airlines like Delta, United Airlines, and Southwest fly from San Diego to Milwaukee in about 6h 40m. The time it takes to get you to your destination can typically vary by up to 2h 34m. San Diego and Milwaukee are separated by a distance of 1735 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Flying on Frontier is currently your cheapest option to Milwaukee, with prices starting at $119. Additional round-trip tickets that might be worth considering are offered by Spirit Airlines and United Airlines, with the lowest prices starting at $168 and $256, respectively. Frontier is currently priced 72% below the average price you’ll pay for this route.

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

    On average you can expect to pay $349 for a flight from San Diego to Milwaukee. The cheapest flight overall is $156 while the most popular route, (San Diego - Milwaukee-Mitchell) is currently priced at $257.

  • 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 Milwaukee?

Book flights to Milwaukee if you plan to visit one of these locations
Sheboygan
Oak Creek
New Berlin
Wauwatosa

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Alternative routes for San Diego to Milwaukee

See prices for flight routes from nearby airports that may be better suited for you.
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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 October 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$119Average$313FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$168Average$254FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$256Average$512FlexibilityNo cancel feeOn-time69%
DeltaCheapest$260Average$402FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$264Average$462FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$270Average$433FlexibilityNo cancel feeOn-time71%

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