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Cheap flights from Milwaukee to San Antonio from $149

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 10/15. 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

Southwest Logo
4:50 pm - 11:15 pmMKE-SAT
6h 25m1 stop
Southwest Logo
6:05 am - 11:30 amSAT-MKE
5h 25m1 stop
$297Southwest
Find Deal
Tue, Oct 14 - Tue, Oct 21
Multiple Airlines Logo
8:04 pm - 4:37 pmMKE-SAT
20h 33m1 stop
Multiple Airlines Logo
7:00 am - 6:43 pmSAT-MKE
11h 43m1 stop
$298Multiple Airlines
Find Deal
Fri, Oct 24 - Mon, Oct 27
Spirit Airlines Logo
11:57 am - 10:27 pmMKE-SAT
10h 30m1 stop
Spirit Airlines Logo
6:23 pm - 10:33 amSAT-MKE
16h 10m1 stop
$304Spirit Airlines
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Thu, Nov 6 - Sun, Nov 9
Delta Logo
9:14 am - 5:17 pmMKE-SAT
8h 03m1 stop
Delta Logo
5:14 am - 11:01 amSAT-MKE
5h 47m1 stop
$312Delta
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Tue, Oct 21 - Thu, Oct 23
United Airlines Logo
8:20 am - 3:25 pmMKE-SAT
7h 05m2 stops
United Airlines Logo
6:45 am - 11:26 amSAT-MKE
4h 41m1 stop
$317United Airlines
Find Deal
Sat, Oct 18 - Tue, Oct 21
American Airlines Logo
5:00 am - 12:36 pmMKE-SAT
7h 36m2 stops
American Airlines Logo
4:30 pm - 11:05 pmSAT-MKE
6h 35m2 stops
$322American Airlines
Find Deal
Wed, Nov 12 - Sat, Nov 15
Delta Logo
5:25 pm - 11:33 pmMKE-SAT
6h 08m1 stop
Delta Logo
5:30 am - 11:18 amSAT-MKE
5h 48m1 stop
$327Delta
Find Deal
Sat, Jan 31 - Thu, Feb 5
American Airlines Logo
1:14 pm - 8:01 pmMKE-SAT
6h 47m2 stops
American Airlines Logo
2:36 pm - 8:51 pmSAT-MKE
6h 15m1 stop
$332American Airlines
Find Deal
Sat, Jan 31 - Thu, Feb 5
United Airlines Logo
5:52 pm - 10:35 pmMKE-SAT
4h 43m1 stop
United Airlines Logo
6:45 am - 11:26 amSAT-MKE
4h 41m1 stop
$362United Airlines
Find Deal
Wed, Oct 8 - Sun, Oct 12
Spirit Airlines Logo
11:57 am - 11:12 amMKE-SAT
23h 15m2 stops
Spirit Airlines Logo
3:02 pm - 10:33 amSAT-MKE
19h 31m2 stops
$394Spirit Airlines
Find Deal
Thu, Nov 6 - Sun, Nov 16

Delta flights from Milwaukee to San Antonio

Our best Delta deals on Milwaukee to San Antonio flight tickets
Delta
Oct 21
MKE9:14 amMilwaukee-Mitchell
8h 03m
1 stop
SAT5:17 pmSan Antonio
Oct 23
SAT5:14 amSan Antonio
5h 47m
1 stop
MKE11:01 amMilwaukee-Mitchell
$312
Find similar
Delta
Jan 31
MKE5:25 pmMilwaukee-Mitchell
6h 08m
1 stop
SAT11:33 pmSan Antonio
Feb 5
SAT5:30 amSan Antonio
5h 48m
1 stop
MKE11:18 amMilwaukee-Mitchell
$327
Find similar
Delta
Nov 5
MKE5:15 pmMilwaukee-Mitchell
7h 05m
1 stop
SAT12:20 amSan Antonio
Nov 9
SAT6:32 amSan Antonio
5h 00m
1 stop
MKE11:32 amMilwaukee-Mitchell
$352
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Alaska Airlines flights from Milwaukee to San Antonio

Our best Alaska Airlines deals on Milwaukee to San Antonio flight tickets
Alaska Airlines
Sep 29
MKE6:27 amMilwaukee-Mitchell
17h 36m
1 stop
SAT12:03 amSan Antonio
Oct 3
SAT7:57 pmSan Antonio
14h 11m
2 stops
MKE10:08 amMilwaukee-Mitchell
$1,095
Find similar
Alaska Airlines
Sep 26
MKE10:34 amMilwaukee-Mitchell
13h 29m
2 stops
SAT12:03 amSan Antonio
Sep 28
SAT6:27 amSan Antonio
13h 25m
2 stops
MKE7:52 pmMilwaukee-Mitchell
$1,473
Find similar
Alaska Airlines
Sep 26
MKE10:34 amMilwaukee-Mitchell
13h 29m
2 stops
SAT12:03 amSan Antonio
Sep 28
SAT6:27 amSan Antonio
13h 25m
2 stops
MKE7:52 pmMilwaukee-Mitchell
$1,548
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 September 16, 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

Tue 10/14

4:50 pm-11:15 pm

1 stop6h 25m

San Antonio

Tue 10/21

6:05 am-11:30 am

1 stop5h 25m

$297

MilwaukeeSan Antonio

MKE - SAT

MKESAT

Milwaukee-Mitchell

Fri 10/24

8:04 pm-4:37 pm

1 stop20h 33m

San Antonio

Mon 10/27

7:00 am-6:43 pm

1 stop11h 43m

$298

MilwaukeeSan Antonio

MKE - SAT

MKESAT

Milwaukee-Mitchell

Thu 11/6

11:57 am-10:27 pm

1 stop10h 30m

San Antonio

Sun 11/9

6:23 pm-10:33 am

1 stop16h 10m

$304

MilwaukeeSan Antonio

MKE - SAT

MKESAT

Milwaukee-Mitchell

Tue 10/21

9:14 am-5:17 pm

1 stop8h 03m

San Antonio

Thu 10/23

5:14 am-11:01 am

1 stop5h 47m

$312

MilwaukeeSan Antonio

MKE - SAT

MKESAT

Milwaukee-Mitchell

Sat 10/18

8:20 am-3:25 pm

2 stops7h 05m

San Antonio

Tue 10/21

6:45 am-11:26 am

1 stop4h 41m

$317

MilwaukeeSan Antonio

MKE - SAT

MKESAT

Milwaukee-Mitchell

Wed 11/12

5:00 am-12:36 pm

2 stops7h 36m

San Antonio

Sat 11/15

4:30 pm-11:05 pm

2 stops6h 35m

$322

MilwaukeeSan Antonio

MKE - SAT

MKESAT

Milwaukee-Mitchell

Sat 1/31

5:25 pm-11:33 pm

1 stop6h 08m

San Antonio

Thu 2/5

5:30 am-11:18 am

1 stop5h 48m

$327

MilwaukeeSan Antonio

MKE - SAT

MKESAT

Milwaukee-Mitchell

Sat 1/31

1:14 pm-8:01 pm

2 stops6h 47m

San Antonio

Thu 2/5

2:36 pm-8:51 pm

1 stop6h 15m

$332

MilwaukeeSan Antonio

MKE - SAT

MKESAT

Milwaukee-Mitchell

Wed 10/8

5:52 pm-10:35 pm

1 stop4h 43m

San Antonio

Sun 10/12

6:45 am-11:26 am

1 stop4h 41m

$362

MilwaukeeSan Antonio

MKE - SAT

MKESAT

Milwaukee-Mitchell

Thu 11/6

11:57 am-11:12 am

2 stops23h 15m

San Antonio

Sun 11/16

3:02 pm-10:33 am

2 stops19h 31m

$394

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 September, then book flights to San Antonio from Milwaukee during April instead. Flights to San Antonio in April, while not as cheap as those in September, still average around $377.

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 $409 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 $315 on momondo.

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

As of September 2025, prices for Milwaukee to San Antonio flights are approximately 15% more expensive 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

Direct flights

None
There are no direct flights from Milwaukee to San Antonio. There are no popular flight routes from Milwaukee to San Antonio.
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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 40m 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 $183Free CancellationRating
6.3
8,019 reviews
Search Spirit Airlines flights
DeltaPriceFrom $236Free CancellationRating
7.9
7,957 reviews
Search Delta flights
SouthwestPriceFrom $300Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
American AirlinesPriceFrom $301Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $316Free CancellationRating
7.4
8,924 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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