San Antonio

$116+ Cheap flights from Milwaukee to San Antonio (MKE - SAT)

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 12/19. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — SAT
Jan 11 — Jan 181
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Milwaukee to San Antonio with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Milwaukee-Mitchell to San Antonio are usually found in April or September, booked 56 days in advance, depart on a Tuesday or Saturday and return on a Wednesday

Cheap flight deals from Milwaukee to San Antonio

Cheapest flights from Milwaukee to San Antonio
Explore the most affordable flight options available from Milwaukee to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This American Airlines deal was found by Cheapflights users on 12/10. 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.
Wed 12/246:14 amMKE - SAT
1 stop7h 56mAmerican Airlines
Sun 12/286:00 amSAT - MKE
1 stop5h 03mAmerican Airlines
Deal found 12/10$393
This United Airlines deal was found by Cheapflights users on 12/10. 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 12/258:00 amMKE - SAT
1 stop5h 11mUnited Airlines
Mon 12/296:40 amSAT - MKE
1 stop4h 47mUnited Airlines
Deal found 12/10$424
This American Airlines deal was found by Cheapflights users on 12/10. 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.
Thu 12/253:13 pmMKE - SAT
1 stop7h 46mAmerican Airlines
Mon 12/294:39 pmSAT - MKE
2 stops6h 21mAmerican Airlines
Deal found 12/10$459
This Delta deal was found by Cheapflights users on 12/9. 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 12/235:50 pmMKE - SAT
1 stop6h 48mDelta
Mon 12/297:05 amSAT - MKE
1 stop7h 48mDelta
Deal found 12/9$487
This American Airlines deal was found by Cheapflights users on 12/9. 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 12/233:13 pmMKE - SAT
1 stop7h 46mAmerican Airlines
Mon 12/294:39 pmSAT - MKE
2 stops6h 21mAmerican Airlines
Deal found 12/9$492
This Southwest deal was found by Cheapflights users on 12/9. 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.
Sat 12/274:05 pmMKE - SAT
1 stop7h 15mSouthwest
Thu 1/16:50 amSAT - MKE
1 stop5h 10mSouthwest
Deal found 12/9$566
This American Airlines deal was found by Cheapflights users on 12/11. 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.
Sun 12/287:45 amMKE - SAT
1 stop5h 19mAmerican Airlines
Thu 1/16:00 amSAT - MKE
1 stop5h 03mAmerican Airlines
Deal found 12/11$571
This United Airlines deal was found by Cheapflights users on 12/9. 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 12/2312:02 pmMKE - SAT
2 stops10h 46mUnited Airlines
Mon 12/292:13 pmSAT - MKE
2 stops8h 00mUnited Airlines
Deal found 12/9$577
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Sun 12/285:00 amMKE - SAT
1 stop7h 14mUnited Airlines
Thu 1/18:45 amSAT - MKE
1 stop6h 15mUnited Airlines
Deal found 12/10$579

Find flight deals from Milwaukee to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from Milwaukee (MKE) to San Antonio (SAT). 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 December 12, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$217
(Travelocity)

One-way from

$116
(Priceline)

Popular in

March

Cheapest in

April

Average price

$456
Provider with most accurate pricing for Milwaukee-Mitchell-San Antonio flight deals.
Provider most trusted by Cheapflights users for Milwaukee-Mitchell-San Antonio flights.
From Milwaukee-Mitchell to San Antonio
One-way flight from Milwaukee-Mitchell to San Antonio
Highest demand for flights based on searches. 4% potential increase in price ($20 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Average for round-trip flights in December 2025

Cheapflights Fare Finder

 
Customize your flight search to find flights from Milwaukee to San Antonio 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 December 12, 2025.
Use the filters below to find and compare flights from Milwaukee to San Antonio that are best for you.

Fly from

Milwaukee

Fly to

San Antonio

Route

Depart

Return

Price

MilwaukeeSan Antonio

MKE - SAT

MKESAT

Milwaukee-Mitchell

Fri 3/6

7:46 pm-12:17 am

1 stop28h 31m

San Antonio

Mon 3/9

8:53 pm-8:06 pm

1 stop23h 13m

$217

MilwaukeeSan Antonio

MKE - SAT

MKESAT

Milwaukee-Mitchell

Sat 1/17

5:30 am-12:45 pm

1 stop7h 15m

San Antonio

Sun 1/18

5:30 am-12:29 pm

1 stop6h 59m

$281

MilwaukeeSan Antonio

MKE - SAT

MKESAT

Milwaukee-Mitchell

Sat 1/17

12:11 pm-8:43 pm

1 stop8h 32m

San Antonio

Tue 1/20

6:17 pm-11:46 pm

1 stop5h 29m

$281

MilwaukeeSan Antonio

MKE - SAT

MKESAT

Milwaukee-Mitchell

Sat 1/17

5:30 am-12:45 pm

1 stop7h 15m

San Antonio

Sat 1/17

6:17 pm-11:28 pm

1 stop5h 11m

$281

MilwaukeeSan Antonio

MKE - SAT

MKESAT

Milwaukee-Mitchell

Wed 1/14

3:45 pm-9:21 pm

1 stop5h 36m

San Antonio

Tue 1/20

2:05 pm-6:53 pm

1 stop4h 48m

$290

MilwaukeeSan Antonio

MKE - SAT

MKESAT

Milwaukee-Mitchell

Wed 1/14

7:00 am-3:21 pm

1 stop8h 21m

San Antonio

Tue 1/20

5:30 am-12:29 pm

1 stop6h 59m

$290

MilwaukeeSan Antonio

MKE - SAT

MKESAT

Milwaukee-Mitchell

Tue 1/13

5:30 am-12:45 pm

1 stop7h 15m

San Antonio

Sun 1/18

5:30 am-12:29 pm

1 stop6h 59m

$290

MilwaukeeSan Antonio

MKE - SAT

MKESAT

Milwaukee-Mitchell

Tue 1/13

5:33 pm-11:23 pm

1 stop5h 50m

San Antonio

Sat 1/17

12:38 pm-8:58 pm

1 stop8h 20m

$290

MilwaukeeSan Antonio

MKE - SAT

MKESAT

Milwaukee-Mitchell

Wed 1/14

3:45 pm-10:57 pm

1 stop7h 12m

San Antonio

Wed 1/21

5:59 pm-10:59 pm

1 stop5h 00m

$299

MilwaukeeSan Antonio

MKE - SAT

MKESAT

Milwaukee-Mitchell

Tue 1/13

7:45 am-5:25 pm

1 stop9h 40m

San Antonio

Wed 1/14

5:20 am-11:13 am

1 stop5h 53m

$299

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 20 results
1
2

Compare providers for flights from Milwaukee to San Antonio

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 Antonio in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 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 Antonio flights, users find the pricing of Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on Milwaukee-San Antonio flight deals on Cheapflights vs. Mytrip >95% of the time. Price accuracy is based on data collected from Milwaukee-San Antonio flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Milwaukee-San Antonio flights, Cheapflights users trust Mytrip the most. Mytrip 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 Antonio 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 Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio 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 Antonio

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

Use this chart to determine the optimal time to book a round-trip flight from Milwaukee to San Antonio. Price data was last updated on December 5, 2025.

The price you pay for your flight from Milwaukee to San Antonio may vary depending on when you book. For the best chance of a lower fare, look to book 56 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 Antonio?

Currently, January is the cheapest month in which you can book a flight from Milwaukee to San Antonio (average of $73). Flying from Milwaukee to San Antonio in February is currently the most expensive (average of $171). 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 SAT?

Find hourly flight availability from Milwaukee to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.

When flying from Milwaukee to San Antonio, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 7% versus a flight in the evening.

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. 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 Antonio. Reviews last updated December 12, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Milwaukee to San Antonio. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

7.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

7.9

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Food

7.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

7.9

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Food

7.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

7.9

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Food

7.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

7.9

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Food

7.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

7.9

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from Milwaukee to San Antonio. 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 Milwaukee to San Antonio?

    Frontier and Delta can get you from Milwaukee to San Antonio in just under 7h 15m. Your travel time can differ by up to 21h 16m. The distance from Milwaukee to San Antonio is about 1095 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Currently priced at $236, Delta will fly you from Milwaukee to San Antonio and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Southwest and American Airlines - these airlines can fly you to your destination from $280 and $296, respectively. Delta is 42% cheaper than the average price of flights available within the next 90 days to this destination.

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

    One-way options have recently been found by users for as low as $91 on American Airlines. Other airlines that offer cheap prices include Delta from $118 and United Airlines from $143 one-way.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Milwaukee to San Antonio (average of $73). Flying from Milwaukee to San Antonio in February is currently the most expensive (average of $171). 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 Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Milwaukee to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Milwaukee to San Antonio

Discover the top 4 airlines that operate flights from Milwaukee to San Antonio. 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$236Average$378FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$280Average$431FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$296Average$386FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$296Average$396FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.