$110 Cheap Flights from Milwaukee (MKE) to San Antonio (SAT)

View $110 flight on Mon, Feb 23, 2026Opens in a new window

Popular airlines from General Mitchell Intl. Airport (MKE) to San Antonio International Airport (SAT)

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Cheap Flights from Milwaukee to San Antonio (MKE-SAT)

Prices were available within the past 7 days and start at $110 for one-way flights and $169 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Mon, Feb 2 - Fri, Feb 6
MKE
Milwaukee
SAT
San Antonio
$169 Roundtrip, found 2 days ago
$169
Roundtrip
found 2 days ago
Select Spirit Airlines flight, departing Mon, Feb 2 from Milwaukee to San Antonio, returning Fri, Feb 6, priced at $169 found 2 days ago
Frontier Airlines
Mon, Feb 2 - Fri, Feb 6
MKE
Milwaukee
SAT
San Antonio
$190 Roundtrip, found 2 days ago
$190
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Mon, Feb 2 from Milwaukee to San Antonio, returning Fri, Feb 6, priced at $190 found 2 days ago
Frontier Airlines
Fri, Feb 20 - Mon, Feb 23
MKE
Milwaukee
SAT
San Antonio
$191 Roundtrip, found 1 day ago
$191
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Fri, Feb 20 from Milwaukee to San Antonio, returning Mon, Feb 23, priced at $191 found 1 day ago
Spirit Airlines
Fri, Dec 12 - Sun, Dec 14
MKE
Milwaukee
SAT
San Antonio
$203 Roundtrip, found 8 hours ago
$203
Roundtrip
found 8 hours ago
Select Spirit Airlines flight, departing Fri, Dec 12 from Milwaukee to San Antonio, returning Sun, Dec 14, priced at $203 found 8 hours ago
Spirit Airlines
Thu, Jan 8 - Fri, Jan 9
MKE
Milwaukee
SAT
San Antonio
$211 Roundtrip, found 3 days ago
$211
Roundtrip
found 3 days ago
Select Spirit Airlines flight, departing Thu, Jan 8 from Milwaukee to San Antonio, returning Fri, Jan 9, priced at $211 found 3 days ago
Frontier Airlines
Mon, Feb 2 - Fri, Feb 6
MKE
Milwaukee
SAT
San Antonio
$219 Roundtrip, found 2 days ago
$219
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Mon, Feb 2 from Milwaukee to San Antonio, returning Fri, Feb 6, priced at $219 found 2 days ago
Frontier Airlines
Fri, Feb 20 - Mon, Feb 23
MKE
Milwaukee
SAT
San Antonio
$220 Roundtrip, found 1 day ago
$220
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Fri, Feb 20 from Milwaukee to San Antonio, returning Mon, Feb 23, priced at $220 found 1 day ago
American Airlines
Mon, Feb 2 - Fri, Feb 6
MKE
Milwaukee
SAT
San Antonio
$234 Roundtrip, found 2 days ago
$234
Roundtrip
found 2 days ago
Select American Airlines flight, departing Mon, Feb 2 from Milwaukee to San Antonio, returning Fri, Feb 6, priced at $234 found 2 days ago
Southwest Airlines
Mon, Feb 2 - Fri, Feb 6
MKE
Milwaukee
SAT
San Antonio
$239 Roundtrip, found 2 days ago
$239
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Mon, Feb 2 from Milwaukee to San Antonio, returning Fri, Feb 6, priced at $239 found 2 days ago
Delta
Tue, Dec 16 - Tue, Jan 6
MKE
Milwaukee
SAT
San Antonio
$299 Roundtrip, found 7 hours ago
$299
Roundtrip
found 7 hours ago
Select Delta flight, departing Tue, Dec 16 from Milwaukee to San Antonio, returning Tue, Jan 6, priced at $299 found 7 hours ago

Find the cheapest month to fly from Milwaukee (MKE) to San Antonio (SAT)

April is typically the cheapest month to fly

From $188 - $406 per traveler.

Alternative airports near San Antonio

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

Select flight to San Antonio Intl. SAT. Cheapest and Closest option available. Average driving time to city center is 11 minutes. Flights from $457
SAT
San Antonio Intl.
CheapestClosest
Average driving time to city center11 min
Flights from $457

Frequently asked questions

How much does a flight from General Mitchell Intl. Airport (MKE) to San Antonio Intl. Airport (SAT) cost?
Lock in a cheap one-way flight from $110 or cheap return flight from $169 from General Mitchell Intl. Airport (MKE) to San Antonio Intl. Airport (SAT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from General Mitchell Intl. Airport (MKE) to San Antonio Intl. Airport (SAT)?
Planning your getaway for February may help you find better deals, as it's the cheapest month for flights between MKE and SAT. You'll often find the lowest fares during the off-season.
What is the cheapest airline that flies from General Mitchell Intl. Airport (MKE) to San Antonio Intl. Airport (SAT)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest MKE to SAT flight.
How many flights per day from General Mitchell Intl. Airport (MKE) to San Antonio Intl. Airport (SAT)?
There aren't any daily direct flights from General Mitchell Intl. Airport (MKE) to San Antonio Intl. Airport (SAT). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from MKE to SAT?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change 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 is the best time to fly from General Mitchell Intl. Airport (MKE) to San Antonio Intl. Airport (SAT)?
To avoid possible delays on the General Mitchell Intl. Airport (MKE) to San Antonio Intl. Airport (SAT) route, aim to travel before 3 PM. Departures after this hour have a 22% higher chance of being canceled.**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 Antonio Intl. Airport (SAT) last-minute?
Last-minute bookings from MKE to SAT are typically more expensive. For the lowest prices, start searching for flights early. That being said, if you're flexible with your travel plans, you may land a cheap fare right before you leave.
Is it cheaper to book a MKE to SAT flight and hotel package?
You can save money by securing a MKE to SAT flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. After choosing your preferred accommodations and flights, you can add extras such as activities, tours and car rentals.
Can I cancel or change the date of my flight from General Mitchell Intl. Airport (MKE) to San Antonio Intl. Airport (SAT)?
In most cases, you can cancel or reschedule your MKE to SAT flight. However, there may be additional fees, especially if your booking was made over 24 hours ago. Check your itinerary for the airline's policies 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 Antonio Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$169
Distance
1096 mi

Book with confidence

Milwaukee to San Antonio Flights

The cheapest times to fly from Milwaukee to San Antonio

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 Antonio are during the month of February. You can find some of the cheapest flights from Milwaukee to San Antonio with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Milwaukee to San Antonio: 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 Antonio

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 Antonio in 2025. You can also book with separate airlines for your outbound and return journeys, from $110 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 Antonio 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 Antonio 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 Antonio Flights

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*Available to One Key members.