San Diego

$120+ Cheap flights from Milwaukee to San Diego (MKE - SAN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — SAN
maig 27 — juny 31
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Cheapflights Tip: The best prices from Milwaukee-Mitchell to San Diego are usually found in January or February, booked 46 days in advance, depart on a Thursday or Friday and return on a Wednesday

Cheap flight deals from Milwaukee to San Diego

Cheapest flights from Milwaukee to San Diego
Explore the most affordable flight options available from Milwaukee to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 27, 2026.

This Southwest deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dt. 5/195:50 am
MKE
-
SAN
2 stops7h 30m
Southwest
dt. 5/2610:10 pm
SAN
-
MKE
1 stop8h 30m
Southwest
Deal found 4/23$307
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dv. 5/2910:13 am
MKE
-
SAN
1 stop8h 17m
Delta
ds. 6/611:33 am
SAN
-
MKE
1 stop6h 55m
Delta
Deal found 4/22$309
This Southwest deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dt. 6/25:50 am
MKE
-
SAN
2 stops7h 30m
Southwest
dt. 6/98:45 am
SAN
-
MKE
2 stops7h 40m
Southwest
Deal found 4/22$313
This United Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ds. 5/231:30 pm
MKE
-
SAN
2 stops8h 21m
United Airlines
dj. 5/282:08 pm
SAN
-
MKE
1 stop6h 16m
United Airlines
Deal found 4/22$318
This Delta deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dl. 5/112:55 pm
MKE
-
SAN
1 stop10h 32m
Delta
ds. 5/1612:41 pm
SAN
-
MKE
1 stop9h 18m
Delta
Deal found 4/24$321
This Southwest deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dc. 6/33:55 pm
MKE
-
SAN
1 stop6h 00m
Southwest
dc. 6/108:45 am
SAN
-
MKE
2 stops7h 40m
Southwest
Deal found 4/26$322
This United Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ds. 5/95:15 am
MKE
-
SAN
1 stop6h 27m
United Airlines
dc. 5/1311:00 am
SAN
-
MKE
1 stop8h 27m
United Airlines
Deal found 4/22$323
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dg. 5/248:07 am
MKE
-
SAN
1 stop7h 10m
Delta
dj. 5/283:30 pm
SAN
-
MKE
1 stop5h 25m
Delta
Deal found 4/22$325
This Southwest deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ds. 5/912:40 pm
MKE
-
SAN
2 stops8h 05m
Southwest
dc. 5/132:40 pm
SAN
-
MKE
1 stop6h 30m
Southwest
Deal found 4/22$328
This Southwest deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dl. 5/252:25 pm
MKE
-
SAN
Nonstop4h 20m
Southwest
dt. 5/2610:10 pm
SAN
-
MKE
1 stop8h 30m
Southwest
Deal found 4/25$330
This Southwest deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dl. 9/285:00 pm
MKE
-
SAN
1 stop7h 45m
Southwest
dv. 10/212:10 pm
SAN
-
MKE
2 stops8h 40m
Southwest
Deal found 4/23$331
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dv. 5/296:45 am
MKE
-
SAN
1 stop7h 32m
Delta
dv. 6/53:30 pm
SAN
-
MKE
1 stop5h 25m
Delta
Deal found 4/22$333

Find flight deals from Milwaukee to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Milwaukee (MKE) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated abril 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$307
(Southwest)

One-way from

$120
(American Airlines)

Popular in

March

Cheapest in

January

Average price

$397

Good round-trip deal

$401 or less

Good one-way deal

$267 or less
Provider with most accurate pricing for Milwaukee-Mitchell-San Diego flight deals.
Provider most trusted by Cheapflights users for Milwaukee-Mitchell-San Diego flights.
From Milwaukee-Mitchell to San Diego
One-way flight from Milwaukee-Mitchell to San Diego
Highest demand for flights based on searches. 7% potential increase in price ($31 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Average for round-trip flights in April 2026
Price to beat on a round-trip flight from Milwaukee-Mitchell to San Diego.
Price to beat on a one-way flight from Milwaukee-Mitchell to San Diego.

Cheapflights Fare Finder

 
Customize your flight search to find flights from Milwaukee to San Diego 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, Cheapflights users made 2,558,603 searches. Data last updated abril 27, 2026.
Use the filters below to find and compare flights from Milwaukee to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

dc. 6/3

2:45 pm-10:25 pm

1 stop9h 40m

San Diego

dt. 6/9

8:45 am-6:25 pm

2 stops7h 40m

$307

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

dc. 6/3

3:55 pm-7:55 pm

1 stop6h 00m

San Diego

dc. 6/10

5:35 pm-11:35 pm

Nonstop4h 00m

$307

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

dj. 5/28

5:48 pm-11:41 pm

1 stop7h 53m

San Diego

dt. 6/2

6:15 am-4:06 pm

1 stop7h 51m

$336
Quickest round-trip

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

dj. 5/28

7:05 pm-11:05 pm

1 stop6h 00m

San Diego

dl. 6/1

4:25 pm-10:20 pm

Nonstop3h 55m

$341

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

dc. 5/13

12:00 pm-8:04 pm

1 stop10h 04m

San Diego

dt. 5/19

6:20 am-4:42 pm

2 stops8h 22m

$344

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

dv. 8/7

5:45 am-12:35 pm

2 stops8h 50m

San Diego

dl. 8/17

10:40 pm-9:50 am

1 stop9h 10m

$352

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

dv. 5/29

12:50 pm-7:55 pm

2 stops9h 05m

San Diego

dl. 6/1

4:25 pm-10:20 pm

Nonstop3h 55m

$364

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

dg. 6/7

9:37 am-2:12 pm

1 stop6h 35m

San Diego

dj. 6/11

6:15 am-4:04 pm

1 stop7h 49m

$365

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

dl. 5/25

3:50 pm-11:05 pm

1 stop9h 15m

San Diego

dl. 6/1

2:25 pm-1:05 am

1 stop8h 40m

$365

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

dc. 6/17

6:10 am-10:50 am

1 stop6h 40m

San Diego

ds. 6/20

4:15 pm-12:20 am

1 stop6h 05m

$365

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/24

Showing 1-10 of 22 resultsSorted by cheapest first
1
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3

Compare providers for flights from Milwaukee to San Diego

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Milwaukee to San Diego in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Milwaukee-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Milwaukee-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Milwaukee-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Milwaukee-San Diego flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Milwaukee-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Milwaukee to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Milwaukee with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Milwaukee to San Diego

How far ahead should I book a flight from Milwaukee to San Diego?

The price you pay for your flight from Milwaukee to San Diego may vary depending on when you book. For the best chance of a lower fare, look to book 45 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Milwaukee to San Diego?

Currently, January is the cheapest month in which you can book a flight from Milwaukee to San Diego (average of $297). Flying from Milwaukee to San Diego in March is currently the most expensive (average of $520). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MKE to SAN?

Find hourly flight availability from Milwaukee to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated abril 27, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Milwaukee to San Diego as you normally would.

How much does it cost to fly round-trip from Milwaukee to San Diego?

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated abril 27, 2026.
Read through reviews of airlines operating flights from Milwaukee to San Diego, such as Southwest,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Related info for your journey

Find useful and relevant information for your journey from Milwaukee to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airports do I use to fly from Milwaukee to San Diego?

    Booking a flight from Milwaukee-Mitchell (MKE) to San Diego (SAN) is your only option if you wish to fly from Milwaukee to San Diego. On a typical day, there is 1 flight from Milwaukee-Mitchell to San Diego, all of which are around 4h 05m for a nonstop flight. You can also purchase a plane ticket from 6 airlines when you book a flight from Milwaukee-Mitchell to San Diego.

  • How popular is this Milwaukee to San Diego flight route?

  • How long is the flight from Milwaukee to San Diego?

    For as low as $336, Southwest can have you in San Diego from Milwaukee in 7h 53m. Airlines will cover a distance of 1735 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Milwaukee to San Diego round-trip?

    Frontier, at $140, was found to be the cheapest airline from Milwaukee to San Diego.Alternate airlines to your destination round-trip include United Airlines and American Airlines. Frontier is priced at 64% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Milwaukee to San Diego one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $105. Users have also found prices from $125 and $128 on American Airlines and United Airlines, respectively.

  • What are the cheapest flights from Milwaukee to San Diego?

    Looking for the cheapest flight from Milwaukee to San Diego? While on average our users pay $382, our data indicates the cheapest price to be $182. The most popular route (Milwaukee-Mitchell - San Diego), is priced around $239.

  • Can I find deals for flights from Milwaukee to San Diego that include hotel bookings?

    Yes. In addition to deals on Milwaukee to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Milwaukee to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Milwaukee to San Diego.

  • Can I find deals for business class flights from Milwaukee to San Diego?

    Yes. Cheapflights offers flight deals from Milwaukee to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Milwaukee to San Diego?

    Currently, January is the cheapest month in which you can book a flight from Milwaukee to San Diego (average of $297). Flying from Milwaukee to San Diego in March is currently the most expensive (average of $520). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
National City
Coronado
La Mesa
Poway
Julian
Lemon Grove

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Milwaukee to San Diego

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Milwaukee to San Diego

Discover the top 6 airlines that operate flights from Milwaukee to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated abril 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$140Average$283FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$235Average$364FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$236Average$403FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$247Average$382FlexibilityNo cancel feeOn-time75%
DeltaCheapest$256Average$348FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$275Average$433FlexibilityNo cancel feeOn-time63%

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