SAT - MKE

$139 Find Cheap Flights from San Antonio to Milwaukee - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Antonio to Milwaukee departing on 8/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Milwaukee

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Antonio to Milwaukee, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Antonio to Milwaukee, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$266
Typical prices: $375-$494
Frontier
Mon 8/17Thu 8/20
SAT - MKE • 1 stop
Cheapest one-way
$139
Typical prices: $118-$223
Frontier
Sat 8/15
SAT - MKE • 1 stop
Top airlines
Cheapest • from $266 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between San Antonio and Milwaukee. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $260 (round-trip)
Shortest trip • 4h 53m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 18% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Milwaukee!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Antonio to Milwaukee that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Antonio to Milwaukee

Mon, Aug 17 - Thu, Aug 20
Frontier Logo
9:51 am - 11:13 am
SAT
-
MKE
25h 22m
1 stop
Frontier Logo
12:10 pm - 8:56 am
MKE
-
SAT
20h 46m
1 stop
$266Frontier
Sat, Jul 25 - Thu, Aug 6
Frontier Logo
4:26 pm - 7:58 am
SAT
-
MKE
15h 32m
1 stop
Frontier Logo
8:43 am - 8:56 am
MKE
-
SAT
24h 13m
1 stop
$267Frontier
Sat, Jul 11 - Sun, Jul 19
Frontier Logo
4:26 pm - 7:58 am
SAT
-
MKE
15h 32m
1 stop
Frontier Logo
8:43 am - 8:56 am
MKE
-
SAT
24h 13m
1 stop
$283Frontier
Sat, Jul 4 - Sun, Jul 12
Frontier Logo
4:22 pm - 7:58 am
SAT
-
MKE
15h 36m
1 stop
Frontier Logo
8:43 am - 8:56 am
MKE
-
SAT
24h 13m
1 stop
$300Frontier
Mon, Jul 27 - Thu, Aug 6
Frontier Logo
9:51 am - 7:58 am
SAT
-
MKE
22h 07m
1 stop
Frontier Logo
8:43 am - 8:56 am
MKE
-
SAT
24h 13m
1 stop
$331Frontier
Tue, Jul 14 - Wed, Jul 15
Delta Logo
12:04 pm - 7:15 pm
SAT
-
MKE
7h 11m
1 stop
Delta Logo
9:39 am - 5:11 pm
MKE
-
SAT
7h 32m
1 stop
$333Delta
Tue, Jul 28 - Tue, Aug 4
Southwest Logo
11:25 am - 3:35 pm
SAT
-
MKE
4h 10m
1 stop
Southwest Logo
8:10 am - 10:55 pm
MKE
-
SAT
14h 45m
2 stops
$344Southwest
Sat, Sep 5 - Tue, Sep 8
Delta Logo
7:55 am - 4:14 pm
SAT
-
MKE
8h 19m
1 stop
Delta Logo
10:11 am - 5:03 pm
MKE
-
SAT
6h 52m
1 stop
$352Delta
Thu, Aug 6 - Tue, Aug 18
Delta Logo
5:45 pm - 11:53 pm
SAT
-
MKE
6h 08m
1 stop
Delta Logo
6:30 am - 11:49 am
MKE
-
SAT
5h 19m
1 stop
$354Delta
Mon, Jul 13 - Thu, Jul 16
Frontier Logo
9:51 am - 7:58 am
SAT
-
MKE
22h 07m
1 stop
Frontier Logo
8:43 am - 8:56 am
MKE
-
SAT
24h 13m
1 stop
$356Frontier
Booking Insights

KAYAK's insights & trends for San Antonio to Milwaukee flights

Get data-powered insights and trends into flights from San Antonio to Milwaukee to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from San Antonio to Milwaukee?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Antonio to Milwaukee departing in August.

What is the cheapest month to fly from San Antonio to Milwaukee?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Antonio to Milwaukee, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Antonio to Milwaukee is January, where tickets cost $334 (return) on average. On the other hand, the most expensive months are November and May, where the average cost of round-trip tickets is $567 and $466 respectively.

Good to know

Low seasonJanuary
Cheapest flight$139
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 13% increase in price.
Flight from San Antonio to Milwaukee

When to book flights from San Antonio to Milwaukee

Are your dates flexible? Find out the best times to travel from San Antonio to Milwaukee based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Antonio to Milwaukee

  • What is the cheapest flight from San Antonio to Milwaukee?

    In the last 5 days, the lowest price for a flight from San Antonio to Milwaukee was $139 for a one-way ticket and $266 for a round-trip.

  • Do I need a passport to fly between San Antonio and Milwaukee?

    A passport is not required to fly from San Antonio to Milwaukee.

  • Which aircraft models fly most regularly from San Antonio to Milwaukee?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Antonio to Milwaukee?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between San Antonio and Milwaukee, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from San Antonio to Milwaukee, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from San Antonio to Milwaukee are Southwest and Delta. With an average price for the route of $426 and an overall rating of 7.9, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $424 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from San Antonio to Milwaukee?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Antonio to Milwaukee.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Antonio to Milwaukee?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Milwaukee from San Antonio is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Antonio to Milwaukee?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Milwaukee with an airline and back to San Antonio with another airline. Booking your flights between San Antonio and MKE can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Antonio to Milwaukee?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Milwaukee from San Antonio up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from San Antonio to Milwaukee

 
See real verified KAYAK customer reviews for airlines flying from San Antonio to Milwaukee. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Antonio to Milwaukee? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
SouthwestOverall score based on 4241 reviews
7.5Entertainment
8.6Crew
8.0Comfort
7.0Food
8.1Boarding
Airline reviews

Flight was constantly delayed with significant changes in time, it was supposed to get to Colorado Springs at 8:30 PM but it got there after midnight.

2.0 MediocreMarcela, Jun 2026
DAL - COS
Read more Southwest reviews

Flight was constantly delayed with significant changes in time, it was supposed to get to Colorado Springs at 8:30 PM but it got there after midnight.

Over a 3 hour flight. The turbulence was almost imperceptible except for 2 short periods which were not bad and over quickly. The attendants claimed "Safety first" and sat looking at their phones for 3 hours with no drink or snack service. This isn't the first time with Southwest. I thinkit may be there new plan of operation. Oh, and it was June 18, Southwest's Birthday which offered free drinks. NOT.

Flight was delayed, full flight and I had to change gates. Southwest flights are always late later in the day.

Flight was delayed over 3 hours. Planes were dirty. Staff indifferent. And they serve vegan pretzels as snacks.

It was great. The gate staff were very helpful in Portland when my son forgot his rolling bag and had to go back to get it just in time to make it on the plane. We really appreciate that. Great job!

Airline is not very senior friendly. Flights are late, forcing us to run to the connecting flight. Food is awful. Wish they would go back to pretzels and peanuts. During flight, pressurization isn’t quite right and all of our ears get plugged. Everything is nickel and dime, charging for boarding, seat selection and legroom. While a screen at the desk in the gate area says check your roll on bag now for free due to space limitation, the employee at the desk will not check the bag without a $100 fee. Insane.

Kayak could’ve posted the correct gate number. Almost missed my flight.

Slow boarding, limited food and drink portions. Bad delays and turbulence

there were two flight attendants that were up front...that were the best! They get KUDOs for making my trip only fantastic. Tell them Jeff said that!

OKay. I sat in the back of the plane and it was really loud between babies and little kids, and adults who.like to talk a lot and loudly most of the flight.

Flight got canceled 4 times, missed my connecting flight due to delays, have to wait to go home tomorrow

Third flight in two months where the crew was not there. Comfort seating does not guarantee overhead bin space. Passengers with children are allowed on the plane first - if you are flying to and from Orlando, this means half the plane has boarded before you get on. And somehow all the bin space is taken up. 3 out of 5 flights have had issues with equipment or procedure. Some of these instances caused the flight to be delayed because of a "nuisance" light. One time it was a bag that had been brought on board but did not belong to anyone so we had to return to the gate. Last night we were told the "AC" on the plane doesn't work well and we're 10th for take off- because the crew was late - and that it will get cool when we're in the air. Not sure if this is usual, but I didn't think flight crew could jump seat in first class. Movie and TV selection has not been refreshed for several months- flying one to two round trips each month easily exhausts the list of content.

Great experience nice pilot very soft and easy landing and take off

We sat on the runway for over an hour before departure. That was unwelcome.

Horrible. Faucet in sink not working, wifi not working. Didn’t bring food or snacks

Flight was delayed before take off and at landing. Baggage took 20 minutes. Flight crew would not serve full soft drink and had to ask multiple times before receiving water.

From checking to boarding, it was a seamless experience. The service agents were so helpful. The flight crew was so pleasant.

Gate agent showed up 20 minutes before boarding and was not at all friendly. Had to take this flight due to the one on the day before being cancelled and any later options were already full with long standby lists. Despite having paid for Delta Comfort seats, Delta did not allow me (or anyone) to choose their seat. The agent assigned them for everyone just prior to boarding. Self seat selection was allowed on the original flight. Flight staff was great - very friendly.

Flight attendants were great. Cheerful, upbeat and friendly. Jet, in particular, was fantastic.

I have Precheck. Flew HPN to DEN and return this past weekend. Delta didn't attach my Precheck number to this trip. So it was waiting in general line especially in Denver. Unavailable.

They delayed the flight 3 hours because it wasn't full they moved us to 5 different gates probably the worst airline ever not even spirit is this bad.

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

The pilot had to extend the flight time from san antonio to Houston to burn off fuel. This caused a lot of unnecessary stress since we had a tight connection to Aruba. And with no other flights going to Aruba we were worried about spending a night in Houston. We had to to run to our connection because of the flight crews mistake. Not happy.

Packed flight, which makes it tough on crew and boarding staff (and the customers of course). But this was great boarding, clear instructions, etc. Traveling on the weekends are always fraught with danger as you have families and less frequent flyers thus more confusion. But this flight went as planned.

Boarded early, left early, arrived 40 mins early! A win win for me!

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

We had a delay, but thankfully I made it to my connection. Overall it went smooth

Left an hour and a half after the listed time. Up side was it had TV screens on the seat.

Great flight. Got to watch a movie. Smooth flight and early arrival at ORD.

Fine. The issues I had were associated with luggage being delayed from Turkey to Tanzania

Delayed and horrible communication and sat on flight for an hour before taking off

Plane temperature was so hot that everyone on the plane was sweating. Departure gates changed 3 times in the hour before the flight. Internet service was so poor in the terminal that updates weren't always being received.

Delayed flight due to maintenance and I have had multiple delayed flights due to maintenance in the last month plus

technology worked well and everything ran smoothly. The seats are quite cramped so please don't try to re-engineer the cabin to squeeze more bodies on board.

Delayed flight more than I hour. When boarding we spent some additional time on the plane before takeoff ....

Flight was delayed due to connecting passengers. Lack of snack options bad. Sitting in Aisle, last cart run pulled the cart directly into my knee. Rude awakening.

Flight was delayed by 6 hours... the level of incompetence was truly astounding. I won't be flying American Airlines again. I don't care if AA is direct and there is a layover with another airline, I'll take the layover.

Flight was delayed 5 hours. Initial reason for delay was 'maintenance' - which makes sense. Then, the additional 2 hours continued to say it was maintenance - when I know EWR had a 2 hour delay. AA did not say that. Additionally, when boarding, there was only one agent at the counter for a long time - until another came to help. After boarding, we had to wait another 45 minutes due to 'no catering'. So while we waited for catering, AA continued to board additional passengers - which seemed odd - and raised questions about what really was going on. I sat in First Class. During the flight, the flight crew allowed a significant number of non-First Class passengers to use the front bathroom - which created a very crowded environment in First Class which was uncomfortable. This also delayed First Class passengers from using the bathroom. Overall, horrible experience.

Another uncoordinated American experience. Always surprises me at DFW for them of all places. Have to take this flight as there are no other good time options. We knew from the start that something was wrong, but the pilot wouldn't tell us. I just watched my Kayak app grow the delay by 10 minutes as it went to 3.5 hours. They were uncoordinated with maintenance (as maintenance, when finally arriving, knew within 15 minutes the plane wasn't going. No 'sorry' or 'this is what is going on' comment. The pilot seemed unfazed / didn't care about the process we were going through.

The seats. The seat in front of me was awful and when the guy sat down, it flew back and hit my head when I was putting my backpack under the seat, It didn't make for a pleasant experience,

Everything you need to know for your flight from San Antonio to Milwaukee

Information on your arrival and departure airports