$90 Cheap Flights from Milwaukee (MKE) to San Diego (SAN)

View $90 flight on Mon, Nov 10, 2025Opens in a new window

Popular airlines from General Mitchell Intl. Airport (MKE) to San Diego Intl. Airport (SAN)

Cheap Flights from Milwaukee to San Diego (MKE-SAN)

Prices were available within the past 7 days and start at $90 for one-way flights and $180 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Mon, Nov 10 - Thu, Nov 13
MKE
Milwaukee
SAN
San Diego
$180 Roundtrip, found 9 hours ago
$180
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Mon, Nov 10 from Milwaukee to San Diego, returning Thu, Nov 13, priced at $180 found 9 hours ago
Southwest Airlines
Sat, Jan 10 - Wed, Jan 14
MKE
Milwaukee
SAN
San Diego
$186 Roundtrip, found 2 hours ago
$186
Roundtrip
found 2 hours ago
Select Southwest Airlines flight, departing Sat, Jan 10 from Milwaukee to San Diego, returning Wed, Jan 14, priced at $186 found 2 hours ago
Southwest Airlines
Sat, Jan 10 - Wed, Jan 14
MKE
Milwaukee
SAN
San Diego
$192 Roundtrip, found 2 hours ago
$192
Roundtrip
found 2 hours ago
Select Southwest Airlines flight, departing Sat, Jan 10 from Milwaukee to San Diego, returning Wed, Jan 14, priced at $192 found 2 hours ago
Frontier Airlines
Mon, Nov 10 - Fri, Nov 14
MKE
Milwaukee
SAN
San Diego
$192 Roundtrip, found 9 hours ago
$192
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Mon, Nov 10 from Milwaukee to San Diego, returning Fri, Nov 14, priced at $192 found 9 hours ago
Southwest Airlines
Wed, Jan 21 - Wed, Jan 28
MKE
Milwaukee
SAN
San Diego
$197 Roundtrip, found 4 hours ago
$197
Roundtrip
found 4 hours ago
Select Southwest Airlines flight, departing Wed, Jan 21 from Milwaukee to San Diego, returning Wed, Jan 28, priced at $197 found 4 hours ago
Southwest Airlines
Thu, Dec 4 - Sat, Dec 6
MKE
Milwaukee
SAN
San Diego
$198 Roundtrip, found 2 hours ago
$198
Roundtrip
found 2 hours ago
Select Southwest Airlines flight, departing Thu, Dec 4 from Milwaukee to San Diego, returning Sat, Dec 6, priced at $198 found 2 hours ago
Southwest Airlines
Thu, Jan 15 - Tue, Jan 20
MKE
Milwaukee
SAN
San Diego
$203 Roundtrip, found 6 hours ago
$203
Roundtrip
found 6 hours ago
Select Southwest Airlines flight, departing Thu, Jan 15 from Milwaukee to San Diego, returning Tue, Jan 20, priced at $203 found 6 hours ago
Delta
Tue, Dec 23 - Wed, Dec 31
MKE
Milwaukee
SAN
San Diego
$212 Roundtrip, found 2 hours ago
$212
Roundtrip
found 2 hours ago
Select Delta flight, departing Tue, Dec 23 from Milwaukee to San Diego, returning Wed, Dec 31, priced at $212 found 2 hours ago
Alaska Airlines
Thu, Dec 4 - Sat, Dec 6
MKE
Milwaukee
SAN
San Diego
$221 Roundtrip, found 2 hours ago
$221
Roundtrip
found 2 hours ago
Select Alaska Airlines flight, departing Thu, Dec 4 from Milwaukee to San Diego, returning Sat, Dec 6, priced at $221 found 2 hours ago
United
Thu, Jan 1 - Mon, Jan 5
MKE
Milwaukee
SAN
San Diego
$272 Roundtrip, found 7 hours ago
$272
Roundtrip
found 7 hours ago
Select United flight, departing Thu, Jan 1 from Milwaukee to San Diego, returning Mon, Jan 5, priced at $272 found 7 hours ago

Find the cheapest month to fly from Milwaukee (MKE) to San Diego (SAN)

May is typically the cheapest month to fly

From $137 - $383 per traveler.

Alternative airports near San Diego

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to General Abelardo L. Rodriguez Intl. TIJ. Average driving time to city center is 26 minutes. Flights from $561
TIJ
General Abelardo L. Rodriguez Intl.
Average driving time to city center26 min
Flights from $561
Select flight to McClellan-Palomar CLD. Average driving time to city center is 38 minutes. Flights from $593
CLD
McClellan-Palomar
Average driving time to city center38 min
Flights from $593

Frequently asked questions

How much does a flight from General Mitchell Intl. Airport (MKE) to San Diego Intl. Airport (SAN) cost?
Snag a cheap one-way flight from $90 or cheap return flight from $180 from General Mitchell Intl. Airport (MKE) to San Diego Intl. Airport (SAN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from General Mitchell Intl. Airport (MKE) to San Diego Intl. Airport (SAN)?
November is the cheapest month to fly from MKE to SAN. Timing your trip outside of the busy season is often the key to finding a great deal.
What is the cheapest airline that flies from General Mitchell Intl. Airport (MKE) to San Diego Intl. Airport (SAN)?
To find the cheapest airline flying from MKE to SAN, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from General Mitchell Intl. Airport (MKE) to San Diego Intl. Airport (SAN)?
Nonstop flights from General Mitchell Intl. Airport (MKE) to San Diego Intl. Airport (SAN) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from MKE to SAN?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What airline has the least delays from MKE to SAN?
With 100% of journeys usually landing on schedule, Southwest Airlines has the best on-time performance for nonstop flights from General Mitchell Intl. Airport (MKE) to San Diego Intl. Airport (SAN). To monitor your flight status and get notified about any changes, use the Expedia App.
What is the best time to fly from General Mitchell Intl. Airport (MKE) to San Diego Intl. Airport (SAN)?
To touch down at San Diego Intl. Airport (SAN) on time, book a flight that takes off from General Mitchell Intl. Airport (MKE) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from General Mitchell Intl. Airport (MKE) to San Diego Intl. Airport (SAN) last-minute?
Booking your ticket from MKE to SAN right before your getaway is usually more expensive. However, if there's some wiggle room with your departure dates and times, you could snag a cheap last-minute fare.
Is it cheaper to book a MKE to SAN flight and hotel package?
Opting for a MKE to SAN flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Pick from our wide range of hotels and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from General Mitchell Intl. Airport (MKE) to San Diego Intl. Airport (SAN)?
Typically, you can modify or cancel your MKE to SAN flight. However, there may be additional fees, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's rules and fees on flight changes, or if you'd like more details, head to our Customer Service portal.

Travel information

Origin airport
General Mitchell Intl.
Destination airport
San Diego Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Roundtrip price
$180
Distance
1735 mi
Average flight time
4 hours 15 mins

Book with confidence

Milwaukee to San Diego Flights

The cheapest times to fly from Milwaukee to San Diego

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Milwaukee to San Diego are during the month of November. You can find some of the cheapest flights from Milwaukee to San Diego with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Milwaukee to San Diego

Sunday is one of the best days to book for cheap flights from Milwaukee to San Diego: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Milwaukee to San Diego

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Milwaukee to San Diego in 2025. You can also book with separate airlines for your outbound and return journeys, from $90 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Milwaukee to San Diego flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Milwaukee to San Diego airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Milwaukee to San Diego Flights

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*Available to One Key members.