MKE - SAT

$111 Find Cheap Flights from Milwaukee to San Antonio

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Milwaukee to San Antonio departing on 6/27. 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

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

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

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Milwaukee to San Antonio 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 Milwaukee to San Antonio

Fri, Jun 27 - Sun, Jun 29
Frontier Logo
7:56 pm - 6:03 pmMKE-SAT
22h 07m1 stop
Frontier Logo
8:12 pm - 7:11 pmSAT-MKE
22h 59m1 stop
$210Frontier
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Mon, Jul 14 - Mon, Jul 21
 Logo
7:58 pm - 6:02 pmMKE-SAT
22h 04m1 stop
 Logo
7:45 am - 3:42 pmSAT-MKE
7h 57m1 stop
Mon, Sep 22 - Thu, Sep 25
Spirit Airlines Logo
6:40 am - 5:04 amMKE-SAT
22h 24m1 stop
Spirit Airlines Logo
6:16 pm - 11:01 amSAT-MKE
16h 45m1 stop
$242Spirit Airlines
Find Deal
Thu, Sep 11 - Sun, Sep 14
Spirit Airlines Logo
2:49 pm - 11:30 pmMKE-SAT
8h 41m1 stop
Spirit Airlines Logo
6:16 pm - 11:01 amSAT-MKE
16h 45m1 stop
$248Spirit Airlines
Find Deal
Wed, Sep 3 - Mon, Sep 8
Delta Logo
7:05 am - 12:24 pmMKE-SAT
5h 19m1 stop
Delta Logo
6:11 pm - 11:36 pmSAT-MKE
5h 25m1 stop
$277Delta
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Wed, Sep 3 - Mon, Sep 8
American Airlines Logo
10:34 am - 6:42 pmMKE-SAT
8h 08m2 stops
American Airlines Logo
6:00 am - 10:31 amSAT-MKE
4h 31m1 stop
$282American Airlines
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Tue, Aug 26 - Wed, Sep 3
Southwest Logo
6:15 am - 2:55 pmMKE-SAT
8h 40m2 stops
Southwest Logo
4:00 pm - 10:05 pmSAT-MKE
6h 05m2 stops
$287Southwest
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Tue, Sep 9 - Sat, Sep 13
Delta Logo
5:25 am - 11:10 amMKE-SAT
5h 45m1 stop
Delta Logo
5:20 am - 12:27 pmSAT-MKE
7h 07m1 stop
$297Delta
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Tue, Sep 9 - Sat, Sep 13
American Airlines Logo
10:34 am - 6:42 pmMKE-SAT
8h 08m2 stops
American Airlines Logo
5:18 pm - 9:57 pmSAT-MKE
4h 39m1 stop
$302American Airlines
Find Deal
Wed, Sep 3 - Sat, Sep 6
Southwest Logo
8:20 am - 6:20 pmMKE-SAT
10h 00m2 stops
Southwest Logo
8:55 am - 3:50 pmSAT-MKE
6h 55m2 stops
$307Southwest
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KAYAK's insights & trends for Milwaukee to San Antonio flights

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

What’s the cheapest day of the week to fly from Milwaukee to San Antonio?

The average price of all round-trip flights from Milwaukee to San Antonio clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Milwaukee to San Antonio, look for departures on Tuesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from San Antonio, Wednesday is the cheapest day to fly and Sunday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Milwaukee to San Antonio, 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 Milwaukee to San Antonio is August, where tickets cost $296 (return) on average. On the other hand, the most expensive months are March and June, where the average cost of round-trip tickets is $539 and $471 respectively.

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

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

To get a below average price on the flight from Milwaukee to San Antonio, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonFebruary
High seasonDecember
Cheapest flight$111
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 9% increase in price.
Flight from Milwaukee to San Antonio

When to book flights from Milwaukee to San Antonio

Are your dates flexible? Find out the best times to travel from Milwaukee to San Antonio 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 Milwaukee to San Antonio

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

    In the last 3 days, the lowest price for a flight from Milwaukee to San Antonio was $111 for a one-way ticket and $210 for a round-trip.

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

    No, a passport isn't needed to fly from Milwaukee to San Antonio. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Milwaukee to San Antonio?

    On your way to San Antonio, you’ll fly out from Milwaukee-Mitchell. You’ll be landing at San Antonio.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Milwaukee to San Antonio are Southwest and Delta. With an average price for the route of $441 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $386 and an overall rating of 8.0.

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

    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 Milwaukee to San Antonio.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Antonio from Milwaukee 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 Milwaukee to San Antonio?

    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 San Antonio with an airline and back to Milwaukee with another airline. Booking your flights between Milwaukee and SAT 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 Milwaukee to San Antonio?

    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 San Antonio from Milwaukee up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Milwaukee to San Antonio

 
See real verified KAYAK customer reviews for airlines flying from Milwaukee to San Antonio. 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 Milwaukee to San Antonio? 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.
8.0
SouthwestOverall score based on 4278 reviews
8.0Comfort
8.6Crew
8.2Boarding
7.6Entertainment
7.1Food
Airline reviews

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

10.0 ExcellentMichael, Jun 2025SMF - SEA
Read more Southwest reviews

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

We sat on the plane on the tarmac for 4 hours.

Multiple delays and gate changes. Arrived at final destination 6 hours late. All rental cars had been taken.

The movies using Southwest WiFi kept pausing and I had to restart multiple times.

First, my flight was a usual flight nothing exceptional or unexpected. Over all it was a normal, good flight! Second, your questionaire is wholly lacking in the proper options to which one can answer a question. Often on short flights, there is no food let alone entertainment so why isn't that reflected in your questionaire? A simple "not applicable" would cover that issue appropriately but no, your form arbitrarily enters an answer based on the initial assessment which normally isn't factual. Until you provide an accurate means of assessing flights, I'll no longer be completing of these unimpressive and misleading assessements. Thank you!

Easy to book and to get check in and get on and off.

First time I’ve ever missed a flight and it was an international flight.. Southwest put me on the next flight and it was the best experience possible.

It seems as though the provisions are even less. Although SWA used to be an economy Airline, that isn't really the case anymore. I paid over $700. for a round trip to Denver and I could have flown just about any airline for the price. The drinks are now in a 6-ounce cup and with ice I'm sure a can would fill more than 2 cups. However, I am very proud of SWA for using paper rather than continuing to contribute to the millions of plastic cups being used each day. I've thought of this fr many years and am so glad to see it come to fruition, if not by only SWA so far.

Service was great, boarding and exiting went smoothly, and the flight was very pleasant.

I like for how they process during check in. It was very smoothly.

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent check-in. Crew was good. Excellent communication from flight deck.

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

Gate agent did not hold flight for connection, provided no assistance to get new flight

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

I don’t understand the purpose of the orange “priority” tag on my bag. This tagged, my bag is last or near to the last bag to come down the carousel at IAH.

Oh my gosh, I loved my experience with United! they made me want to travel more often.

The planes are so dirty! Food crumbs and finger print smudges, Dust over the vents and carpet stains. It’s disgusting.

The bag drop personal were not helpful. There was no food on the flight. Boeing aircraft, lousy as always. Everything else was fine.

Asked several times dairy free options and was ignored. Was told chips was the only thing I could have that I should have put it on my profile “which it is”. Very unprofessional. WiFi didn’t work have the flight. Overall a very bad experience.

Plane still had screens for watching movies. Good selection too.

Flight crew was amazing! I don't like that the Polaris seats are side-by-side.

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

I’m impressed that we were on time in Sacramento after having a late departure in Newark and our made it. The staff was friendly and warm.

5.5 hour delay with no explanation on why, along with no proactive effort to reaccomodate me.

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious.

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious. this return flight not as tasty, but filling.

So awful Unreliable Unfriendly Bad Mad Mean Smelly Hot Late Overbooked Understaffed Expensive Cramped Narcs If they were a fruit they’d be rotten durian

It’s a great flight. Service is good. Staff is awesome.

Boarding on time and fight was early but they didn't let us off the plane on time so we missed our connecting flight to Japan.

DFW-LHR Toilets not kept clean Too cramped. Aisles so narrow crew were constantly banging into people on the aisle seats. Even then, the carts used are reduced width. Other than that it was a decent flight on both legs

Eventless. It was a good flight and good crew. Can’t complaint.

Spirit gets you there; it's no worse than any other aircraft, all things considered. (It's not like everyone else is such a hero). But - holy moses - do they nickel and dime you to absolutely every nickel - I was really expecting to have to pay to use the bathroom. And when the captain comes on with a 5 minute sales pitch about getting "points", that was like something on Bizarro world. Other than that, everyone else was professional and worked hard to get us from point A to point B. I'm not loving all the "self-service" stuff but there it is - just when the machines don't work you don't have anyone to talk to.

Easy boarding and good flight. Need to work on the beverage and snack situation

The staff was great, but because the 2nd lieutenant didn’t show up for the flight we all had to deboard and wait 2 1/2 hours for one to show up. Very disappointing the crew can’t get schedules confirmed which wouldn’t have caused this issue.

Flight was delayed a bit, but that was expected (and updated), so really not bad at all for the price. Could’ve used one less email asking me to upgrade my seat; otherwise no significant complaints

Easy boarding. Met expectations for a 2-3 hour flight. Early arrival at DFW caused a 39 minute delay on the tarmac in getting to our gate. 😏 overall, good flight.

My experience with Spirit went pretty much as expected. It's a no frills airline, and you get what you pay for. I don't require much, so I was grateful to have an inexpensive way to travel. It is sad to me that the gate agents and flight crew don't smile much or seem very friendly or helpful. They are competent and efficient, and that's really all I need.

It was fast but uncomfortable seats. Had to pay a bit extra not sure why? Maybe in selection of all my 4 tix together ? Just knew I had a balance before getting boarding pass online when departing from satx ? And flight was delayed..

Last minute 2-3 hr delay in flight schedule; no explanation Unexpected extra $52 charge What's the benefit of choosing a cheap airline if you trick people last minute and force them to pay extra last minute? Did not appreciate being cornered.

Most uncomfortable seating I have ever experienced. And they do not provide any beverage unless purchased. Water was 4.59 a bottle. Same for a soda. A cup of water should be free. I will never fly Spirit again.

Seats are uncomfortable and too close together. Also, you missed my connection in Vegas on the way back and I ended up sleeping in the airport, flying back to Burbank instead of LAX and I got home 12 hours late.

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