SAT - MKE

$141 Find Cheap Flights from San Antonio to Milwaukee

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 12/31. 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
$268
Overall average: $366
Frontier
Sun 2/1Sat 2/14
SAT - MKE • 1 stop
Cheapest one-way
$141
Typical prices: $149-$829
Delta
Wed 12/31
SAT - MKE • 1 stop
Top airlines
Frontier
Cheapest • from $268 (round-trip)
Southwest
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 52% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 19% price drop
July
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

Sun, Feb 1 - Sat, Feb 14
Frontier Logo
6:13 pm - 9:58 am
SAT
-
MKE
15h 45m1 stop
Frontier Logo
7:22 pm - 8:36 pm
MKE
-
SAT
25h 14m1 stop
$268Frontier
Sun, Feb 1 - Sat, Feb 14
Frontier Logo
6:13 pm - 5:58 pm
SAT
-
MKE
47h 45m2 stops
Frontier Logo
7:22 pm - 8:36 pm
MKE
-
SAT
25h 14m1 stop
$293Frontier
Tue, Jan 13 - Tue, Jan 20
United Airlines Logo
9:00 am - 1:53 pm
SAT
-
MKE
4h 53m1 stop
United Airlines Logo
3:45 pm - 10:57 pm
MKE
-
SAT
7h 12m1 stop
$308United Airlines
Tue, Jan 13 - Tue, Jan 20
United Airlines Logo
2:05 pm - 8:48 pm
SAT
-
MKE
6h 43m1 stop
United Airlines Logo
2:32 pm - 10:57 pm
MKE
-
SAT
8h 25m2 stops
$313United Airlines
Tue, Jan 13 - Tue, Jan 20
United Airlines Logo
5:25 am - 12:09 pm
SAT
-
MKE
6h 44m2 stops
United Airlines Logo
2:32 pm - 10:57 pm
MKE
-
SAT
8h 25m2 stops
$318United Airlines
Sat, Jan 10 - Sun, Jan 11
Multiple Airlines Logo
6:30 am - 7:14 pm
SAT
-
MKE
12h 44m1 stop
Multiple Airlines Logo
7:40 pm - 11:52 pm
MKE
-
SAT
28h 12m1 stop
$330Multiple Airlines
Mon, Jan 12 - Tue, Jan 13
American Airlines Logo
6:06 am - 10:58 am
SAT
-
MKE
4h 52m1 stop
American Airlines Logo
12:07 pm - 7:26 pm
MKE
-
SAT
7h 19m1 stop
$335American Airlines
Mon, Jan 12 - Tue, Jan 13
American Airlines Logo
5:00 am - 11:17 am
SAT
-
MKE
6h 17m1 stop
American Airlines Logo
1:04 pm - 8:50 pm
MKE
-
SAT
7h 46m2 stops
$340American Airlines
Wed, Feb 18 - Sun, Feb 22
Delta Logo
10:57 am - 5:34 pm
SAT
-
MKE
6h 37m1 stop
Delta Logo
3:57 pm - 12:34 am
MKE
-
SAT
8h 37m1 stop
$344Delta
Sun, Feb 1 - Sat, Feb 14
American Airlines Logo
9:30 am - 3:57 pm
SAT
-
MKE
6h 27m2 stops
American Airlines Logo
6:00 am - 3:53 pm
MKE
-
SAT
9h 53m2 stops
$378American Airlines
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.

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

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

When flying from San Antonio to Milwaukee, you should consider leaving on a Wednesday and avoid Sundays if you are looking for the best rates. For your return to San Antonio, you’ll find the best rates on Tuesdays and the most expensive ones on Sundays.

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 October, where tickets cost $326 (return) on average. On the other hand, the most expensive months are November and July, where the average cost of round-trip tickets is $567 and $446 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure 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 average of all the values for each week.

To get a below average price on the flight from San Antonio to Milwaukee, you should book around 4 weeks before departure, which saves you about 52% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$141
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 10% 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 3 days, the lowest price for a flight from San Antonio to Milwaukee was $141 for a one-way ticket and $268 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 $397 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 $385 and an overall rating of 7.9.

  • 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 4250 reviews
8.1Boarding
8.0Comfort
8.6Crew
7.5Entertainment
7.0Food
Airline reviews

They sent a notice that they were boarding an hour early. We had to leave the club and run to the gate. They said sorry, that came from corporate and was a mistake. They did not have enough seating because the flight before it had not taken off on time. They moved our gate and delayed it for an hour.

2.0 MediocreRobert, Dec 2025
LAS - TPA
Read more Southwest reviews

They sent a notice that they were boarding an hour early. We had to leave the club and run to the gate. They said sorry, that came from corporate and was a mistake. They did not have enough seating because the flight before it had not taken off on time. They moved our gate and delayed it for an hour.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

Still a fan of open seating. Flight was on schedule and arrived on time. The 737 MAX is very comfortable.

Airline travel is always too cramped to really be pleasant, but the cabin crew on this flight did a pretty good job of making up for it by putting on some music during boarding and sprinkling a few funny remarks into the safety briefing and announcements, and just generally being friendly and helpful. It definitely reminded me of why I prefer the in-flight experience on Southwest!

No delays and arrived to destination 30 min early. Staff was super friendly.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

It was rough. The staff was unprofessional, the choice of on board drinks terrible, it was cramped in space at every airport, they always ran out of overhead bin space so they pressured people to check bags for free or we couldn’t leave on the plane— so I did check my bag to help, and they nearly lost my bag. My bag did not arrive on the luggage belt, another man on my flight and I had to waste our time going to the baggage office to search for our bags. I would only fly southwest again if it was my last choice. Also, my flights were consistently delayed over and over again— at one point they straight up told us we were waiting for the pilot to arrive.

Crew could have been friendlier, maybe I'm spoiled by SW crews. In flight wifi was good. Would be nice to have more food offerings on a 4 plus hour flight

Had to get off plane from prior flight even though I had to reboard same plane to continue to my final destination.

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Overall it was good. I missed my connection but I was put on another flight.

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

Deplaning was delayed because of Jetbridge equipment issues in MKE, causing an issue on an otherwise great flight.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

We boarded but then sat there waiting on some missed connection people to get on so we sat for about 15 minutes for that. Then we sat again because the passenger manifest was wrong and they had to figure it out before we could leave. That took about another 20 minutes or so. The crew was working hard to figure it out so it’s not their fault. It ended up being a system glitch where someone was upgraded to first class while another person was also in the same seat and it just created a mess that took a little while to figure out. They literally went to every person on the plane asking their names to see who was sitting in the wrong seat. I also hate the entertainment that must be watched on your phone or tablet. Just give us setback screens. It’s so much better. Almost every Delta flight has this now and it is so nice to have them. The crew did a great job. I have no complaints from them. They were very hard working, even with the mishap and a disgruntled passenger.

My priority checked bag was not loaded on the flight. I had to sit in baggage claim in Las Vegas for 2 1/2 hours waiting for the next flight. All baggage staff were very helpful, tracking showed it as scanned for loading. Nobody told me why it wasn't on my flight.

it was fine, decent flight... dont get food besides cookies or pretzels so not sure why you ask about food. same for entertainment..

Attendants were pleasant and the flight was smooth and relaxed.

It was fine. No drinks nor snacks offered though. I thought that was unusual.

Things were delayed a little. But that didn’t affect my plans. It was fine. I was surprised it was so full thanksgiving day. The crew were friendly and professional.

The flight was delayed multiple times, again no fault of American but again the extra cost, for everything makes it feel like a cheap airline! Especially when flights are outrageously expensive already

we landed at cmh ten minutes early but had to sit on tarmac for twenty minutes because a plane was at our gate despite the fact that 3 other gates were open.

I have a gluten allergy so did have any food

this plane was really old, had exit row seats and tray was in arm of seat so super uncomfortable to use. another seat they could t even use the tray it was broke. seat i. front of me had duct tape on it cause seat was ripped open... this plane should either be updated or retired.

We loved the steward on the plane. He made the night enjoyable

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

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

Information on your arrival and departure airports