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Cheap flights from Milwaukee to San Antonio from $108

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Milwaukee to San Antonio departing on 8/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Milwaukee to San Antonio

Cheap round-trip flights

Frontier Logo
8:02 pm - 2:35 pmMKE-SAT
18h 33m1 stop
Frontier Logo
8:18 pm - 7:12 pmSAT-MKE
22h 54m1 stop
$245Frontier
Find Deal
Fri, Aug 22 - Sun, Aug 24
Spirit Airlines Logo
11:57 am - 10:27 pmMKE-SAT
10h 30m1 stop
Spirit Airlines Logo
1:50 pm - 11:29 amSAT-MKE
21h 39m1 stop
$248Spirit Airlines
Find Deal
Thu, Nov 6 - Sun, Nov 9
Delta Logo
5:25 am - 11:10 amMKE-SAT
5h 45m1 stop
Delta Logo
5:25 am - 10:42 amSAT-MKE
5h 17m1 stop
$297Delta
Find Deal
Wed, Aug 27 - Wed, Sep 3
American Airlines Logo
9:58 am - 5:41 pmMKE-SAT
7h 43m2 stops
American Airlines Logo
6:00 am - 10:30 amSAT-MKE
4h 30m1 stop
$302American Airlines
Find Deal
Wed, Aug 27 - Tue, Sep 2
Southwest Logo
6:15 am - 2:55 pmMKE-SAT
8h 40m2 stops
Southwest Logo
4:00 pm - 10:05 pmSAT-MKE
6h 05m2 stops
$307Southwest
Find Deal
Wed, Aug 27 - Wed, Sep 3
Southwest Logo
6:10 pm - 12:30 amMKE-SAT
6h 20m1 stop
Southwest Logo
11:20 am - 11:25 pmSAT-MKE
12h 05m2 stops
$308Southwest
Find Deal
Thu, Oct 16 - Thu, Oct 23
American Airlines Logo
9:58 am - 5:41 pmMKE-SAT
7h 43m2 stops
American Airlines Logo
6:00 am - 12:36 pmSAT-MKE
6h 36m2 stops
$309American Airlines
Find Deal
Tue, Aug 26 - Tue, Sep 2
United Airlines Logo
7:00 am - 3:26 pmMKE-SAT
8h 26m2 stops
United Airlines Logo
2:25 pm - 9:56 pmSAT-MKE
7h 31m2 stops
$387United Airlines
Find Deal
Tue, Sep 9 - Sat, Sep 13
Delta Logo
12:06 pm - 5:16 pmMKE-SAT
5h 10m1 stop
Delta Logo
6:21 pm - 11:55 pmSAT-MKE
5h 34m1 stop
$388Delta
Find Deal
Thu, Oct 16 - Mon, Oct 20
United Airlines Logo
6:00 am - 5:42 pmMKE-SAT
11h 42m2 stops
United Airlines Logo
5:15 pm - 9:56 pmSAT-MKE
4h 41m1 stop
$397United Airlines
Find Deal
Thu, Sep 11 - Sun, Sep 14

Spirit Airlines flights from Milwaukee to San Antonio

Our best Spirit Airlines deals on Milwaukee to San Antonio flight tickets
Spirit Airlines
Nov 6
MKE11:57 amMilwaukee-Mitchell
10h 30m
1 stop
SAT10:27 pmSan Antonio
Nov 9
SAT1:50 pmSan Antonio
21h 39m
1 stop
MKE11:29 amMilwaukee-Mitchell
$248
Find similar
Spirit Airlines
Sep 11
MKE12:53 pmMilwaukee-Mitchell
24h 56m
1 stop
SAT1:49 pmSan Antonio
Sep 14
SAT12:45 pmSan Antonio
25h 19m
1 stop
MKE2:04 pmMilwaukee-Mitchell
$259
Find similar
Spirit Airlines
Sep 11
MKE12:53 pmMilwaukee-Mitchell
24h 56m
1 stop
SAT1:49 pmSan Antonio
Sep 14
SAT12:45 pmSan Antonio
25h 19m
1 stop
MKE2:04 pmMilwaukee-Mitchell
$264
Find similar

American Airlines flights from Milwaukee to San Antonio

Our best American Airlines deals on Milwaukee to San Antonio flight tickets
American Airlines
Aug 27
MKE9:58 amMilwaukee-Mitchell
7h 43m
2 stops
SAT5:41 pmSan Antonio
Sep 2
SAT6:00 amSan Antonio
4h 30m
1 stop
MKE10:30 amMilwaukee-Mitchell
$302
Find similar
American Airlines
Aug 26
MKE9:58 amMilwaukee-Mitchell
7h 43m
2 stops
SAT5:41 pmSan Antonio
Sep 2
SAT6:00 amSan Antonio
6h 36m
2 stops
MKE12:36 pmMilwaukee-Mitchell
$309
Find similar
American Airlines
Sep 23
MKE11:25 amMilwaukee-Mitchell
7h 17m
1 stop
SAT6:42 pmSan Antonio
Sep 26
SAT4:48 pmSan Antonio
6h 12m
1 stop
MKE11:00 pmMilwaukee-Mitchell
$312
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from Milwaukee to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MilwaukeeSan Antonio

MKE - SAT

MKESAT

Milwaukee-Mitchell

Fri 8/22

8:02 pm-2:35 pm

1 stop18h 33m

San Antonio

Sun 8/24

8:18 pm-7:12 pm

1 stop22h 54m

$245

MilwaukeeSan Antonio

MKE - SAT

MKESAT

Milwaukee-Mitchell

Thu 11/6

11:57 am-10:27 pm

1 stop10h 30m

San Antonio

Sun 11/9

1:50 pm-11:29 am

1 stop21h 39m

$248

MilwaukeeSan Antonio

MKE - SAT

MKESAT

Milwaukee-Mitchell

Wed 8/27

5:25 am-11:10 am

1 stop5h 45m

San Antonio

Wed 9/3

5:25 am-10:42 am

1 stop5h 17m

$297

MilwaukeeSan Antonio

MKE - SAT

MKESAT

Milwaukee-Mitchell

Wed 8/27

9:58 am-5:41 pm

2 stops7h 43m

San Antonio

Tue 9/2

6:00 am-10:30 am

1 stop4h 30m

$302

MilwaukeeSan Antonio

MKE - SAT

MKESAT

Milwaukee-Mitchell

Wed 8/27

6:15 am-2:55 pm

2 stops8h 40m

San Antonio

Wed 9/3

4:00 pm-10:05 pm

2 stops6h 05m

$307

MilwaukeeSan Antonio

MKE - SAT

MKESAT

Milwaukee-Mitchell

Thu 10/16

6:10 pm-12:30 am

1 stop6h 20m

San Antonio

Thu 10/23

11:20 am-11:25 pm

2 stops12h 05m

$308

MilwaukeeSan Antonio

MKE - SAT

MKESAT

Milwaukee-Mitchell

Tue 8/26

9:58 am-5:41 pm

2 stops7h 43m

San Antonio

Tue 9/2

6:00 am-12:36 pm

2 stops6h 36m

$309

MilwaukeeSan Antonio

MKE - SAT

MKESAT

Milwaukee-Mitchell

Tue 9/9

7:00 am-3:26 pm

2 stops8h 26m

San Antonio

Sat 9/13

2:25 pm-9:56 pm

2 stops7h 31m

$387

MilwaukeeSan Antonio

MKE - SAT

MKESAT

Milwaukee-Mitchell

Thu 10/16

12:06 pm-5:16 pm

1 stop5h 10m

San Antonio

Mon 10/20

6:21 pm-11:55 pm

1 stop5h 34m

$388

MilwaukeeSan Antonio

MKE - SAT

MKESAT

Milwaukee-Mitchell

Thu 9/11

6:00 am-5:42 pm

2 stops11h 42m

San Antonio

Sun 9/14

5:15 pm-9:56 pm

1 stop4h 41m

$397

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Antonio from

How to get the cheapest flight ticket from Milwaukee to San Antonio

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Antonio?

If you aren’t able to travel during the month of August, then book flights to San Antonio from Milwaukee during July instead. Flights to San Antonio in July, while not as cheap as those in August, still average around $343.

What is the cheapest day to depart on your flight to San Antonio?

The cheapest day to depart on your flight to San Antonio is on a Tuesday when prices can be found for as low as $370. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Sunday is $428.

What is the cheapest time of day to depart on your flight to San Antonio?

According to our data, the cheapest time of day to fly to San Antonio is in the morning. momondo users have found flights departing from Milwaukee to San Antonio in the morning for as low as $386. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to San Antonio are more costly in the evening, with an average ticket price of $416. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to San Antonio?

You are more likely to see cheaper flights to San Antonio from Milwaukee when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $397 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from Milwaukee for as low as $350 on momondo.

How have Milwaukee to San Antonio flight prices changed over time?

As of July 2025, prices for Milwaukee to San Antonio flights are approximately 38% cheaper when compared to flights at the same time last year.

When to book flights from Milwaukee to San Antonio

Are you open to changing your travel dates? Check out the ideal times to fly from Milwaukee to San Antonio according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Milwaukee to San Antonio (MKE to SAT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Milwaukee to San Antonio

Best Price Found

$108

Fastest flight time

4h 24m

Direct flights

None

Airports in San Antonio

1 airport
The best one-way flight to San Antonio from Milwaukee in the past 72 hours is $108. The best round-trip flight deal from Milwaukee to San Antonio found on momondo in the last 72 hours is $245.
The fastest flight from Milwaukee to San Antonio takes 4h 24m
There are no direct flights from Milwaukee to San Antonio. Popular non-direct route for this connection is Milwaukee-Mitchell Airport - San Antonio Airport.
There is 1 airport near San Antonio: San Antonio (SAT)
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  • How far is Milwaukee-Mitchell to San Antonio by plane?

    A flight from Milwaukee-Mitchell to San Antonio will travel around 1107.6 mi. 4h 35m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Milwaukee-Mitchell Airport to San Antonio Airport?

    Prices for flights from Milwaukee-Mitchell Airport to San Antonio Airport refresh daily.

  • How many operators does momondo search for flights from Milwaukee-Mitchell Airport to San Antonio Airport?

  • How old do you have to be to fly from Milwaukee-Mitchell Airport to San Antonio Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Milwaukee-Mitchell Airport to San Antonio Airport.

  • What documentation or ID do you need to fly to San Antonio Airport?

    The travel and health documents required for your trip to San Antonio Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Antonio Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Milwaukee to San Antonio?

Best airlines flying from Milwaukee to San Antonio

Compare and see reviews for airlines that fly from Milwaukee to San Antonio with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $178Free CancellationRating
6.3
8,048 reviews
Search Spirit Airlines flights
DeltaPriceFrom $236Free CancellationRating
8.0
7,981 reviews
Search Delta flights
American AirlinesPriceFrom $296Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $312Free CancellationRating
8.0
4,246 reviews
Search Southwest flights
United AirlinesPriceFrom $316Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights

Traveling to a place near San Antonio?

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

Why use momondo?

Why should I use momondo to find a flight deal from Milwaukee to San Antonio?

It is quick and easy to find Milwaukee to San Antonio flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Antonio that suits you.

Can I find flights from Milwaukee to San Antonio with flexible booking policies on momondo?

All flight searches from Milwaukee to San Antonio on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Milwaukee to San Antonio?

momondo helps you find the best flight between Milwaukee and San Antonio by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Milwaukee to San Antonio right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Milwaukee to San Antonio now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Antonio and let you know when they change.

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