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$65+ 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 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — SAN
nov. 27 — dic. 41
jue. 11/27
jue. 12/4
1 adult, Economy
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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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Cheapflights Tip: The best prices from Milwaukee-Mitchell to San Diego are usually found in November or May, booked 60 days in advance, depart on a Wednesday or Friday and return on a Tuesday

Cheap 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 octubre 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$139
(Mytrip)

One-way from

$65
(Frontier)

Popular in

June

Cheapest in

November

Average price

$418

Good round-trip deal

$407 or less

Good one-way deal

$190 or less
Provider with most accurate pricing for Milwaukee-Mitchell-San Diego flight deals.
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Provider most trusted by Cheapflights users for Milwaukee-Mitchell-San Diego flights.
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From Milwaukee-Mitchell to San Diego
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One-way flight from Milwaukee-Mitchell to San Diego
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Highest demand for flights based on searches. 3% potential increase in price ($13 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Milwaukee-Mitchell to San Diego.
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Price to beat on a one-way flight from Milwaukee-Mitchell to San Diego.
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Find 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 octubre 28, 2025.

This Mytrip deal was found by Cheapflights users on 10/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/108:04 pmMKE - SAN
1 stop27h 35mFrontier
jue. 11/136:00 pmSAN - MKE
1 stop23h 19mFrontier
Deal found 10/27$139
This American Airlines deal was found by Cheapflights users on 10/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/95:00 amMKE - SAN
1 stop9h 29mAmerican Airlines
mié. 11/126:15 amSAN - MKE
1 stop8h 49mAmerican Airlines
Deal found 10/27$210
This American Airlines deal was found by Cheapflights users on 10/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/106:12 amMKE - SAN
1 stop8h 33mAmerican Airlines
vie. 11/1410:47 amSAN - MKE
1 stop9h 21mAmerican Airlines
Deal found 10/28$230
This American Airlines deal was found by Cheapflights users on 10/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/173:36 pmMKE - SAN
1 stop7h 12mAmerican Airlines
lun. 11/246:20 amSAN - MKE
1 stop6h 47mAmerican Airlines
Deal found 10/27$232
This American Airlines deal was found by Cheapflights users on 10/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/302:18 pmMKE - SAN
1 stop7h 11mAmerican Airlines
mié. 11/512:43 pmSAN - MKE
1 stop7h 26mAmerican Airlines
Deal found 10/28$233
This Southwest deal was found by Cheapflights users on 10/28. 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.
vie. 12/1211:40 amMKE - SAN
Nonstop4h 25mSouthwest
mar. 12/162:50 pmSAN - MKE
1 stop5h 50mSouthwest
Deal found 10/28$247
This American Airlines deal was found by Cheapflights users on 10/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/292:05 pmMKE - SAN
1 stop7h 18mAmerican Airlines
vie. 10/3110:02 amSAN - MKE
1 stop6h 04mAmerican Airlines
Deal found 10/28$253
This Delta deal was found by Cheapflights users on 10/28. 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.
mié. 12/35:11 pmMKE - SAN
1 stop8h 24mDelta
vie. 12/51:25 pmSAN - MKE
1 stop6h 21mDelta
Deal found 10/28$257
This Southwest deal was found by Cheapflights users on 10/26. 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.
sáb. 12/1311:10 amMKE - SAN
1 stop8h 35mSouthwest
jue. 12/186:35 amSAN - MKE
1 stop8h 50mSouthwest
Deal found 10/26$267
This Southwest deal was found by Cheapflights users on 10/27. 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.
jue. 12/45:40 amMKE - SAN
1 stop7h 05mSouthwest
dom. 12/712:15 pmSAN - MKE
Nonstop4h 05mSouthwest
Deal found 10/27$272
This Expedia deal was found by Cheapflights users on 10/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/108:04 pmMKE - SAN
1 stop5h 46mMultiple Airlines
vie. 11/145:25 pmSAN - MKE
1 stop19h 35mMultiple Airlines
Deal found 10/27$275

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 octubre 28, 2025.
Use the filters below to find and compare flights from Milwaukee to San Diego that are best for you.

Fly from

Milwaukee

Fly to

San Diego

Route

Depart

Return

Price

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

mié. 12/10

3:17 pm-11:35 pm

1 stop10h 18m

San Diego

dom. 12/14

6:20 am-2:27 pm

1 stop6h 07m

$257

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

mié. 12/3

7:31 pm-11:44 pm

1 stop6h 13m

San Diego

vie. 12/5

11:05 am-8:19 pm

1 stop7h 14m

$257

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

sáb. 12/13

11:10 am-5:45 pm

1 stop8h 35m

San Diego

jue. 12/18

6:35 am-5:25 pm

1 stop8h 50m

$267

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

jue. 1/22

6:05 am-10:35 am

1 stop6h 30m

San Diego

dom. 1/25

12:15 pm-10:10 pm

1 stop7h 55m

$277

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

lun. 1/19

3:42 pm-10:47 pm

1 stop9h 05m

San Diego

vie. 1/23

10:00 pm-8:48 am

1 stop8h 48m

$277

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

mié. 11/26

7:31 pm-11:40 pm

1 stop6h 09m

San Diego

mar. 12/2

10:00 pm-8:45 am

1 stop8h 45m

$277

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

lun. 1/19

5:05 am-10:35 am

1 stop7h 30m

San Diego

jue. 1/22

6:20 am-6:25 pm

2 stops10h 05m

$282

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

vie. 11/14

3:13 pm-11:43 pm

1 stop10h 30m

San Diego

mié. 12/17

6:15 am-4:16 pm

1 stop8h 01m

$282

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

mié. 12/10

3:51 pm-10:47 pm

1 stop8h 56m

$128

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

mar. 11/18

7:00 am-1:03 pm

1 stop8h 03m

$129

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 20 results
1
2

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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Milwaukee-San Diego flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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?

Use this chart to determine the optimal time to book a round-trip flight from Milwaukee to San Diego. Price data was last updated on October 24, 2025.

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 60 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, September is the cheapest month in which you can book a flight from Milwaukee to San Diego (average of $88). Flying from Milwaukee to San Diego in May is currently the most expensive (average of $197). 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 octubre 28, 2025.

When flying from Milwaukee to San Diego, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 35% versus a flight in the afternoon.

What is the cheapest day to fly from Milwaukee to San Diego?

Use this chart to determine the cheapest time to fly round-trip from Milwaukee to San Diego. Price data was last updated on October 26, 2025.

Travelers seeking maximum savings on their Milwaukee to San Diego flight should consider departing on Tuesday at noon when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 octubre 28, 2025.
Read through reviews of airlines operating flights from Milwaukee to San Diego, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,240 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,240 reviews
Southwest
8.0
Very good
4,240 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
7.9
Good
7,994 reviews
Southwest
8.0
Very good
4,240 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
9,001 reviews
Southwest
8.0
Very good
4,240 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
11,032 reviews
Southwest
8.0
Very good
4,240 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,124 reviews
Southwest
8.0
Very good
4,240 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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.

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

    For as low as $267, Delta can have you in San Diego from Milwaukee in 8h 35m. 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 $121, was found to be the cheapest airline from Milwaukee to San Diego.Alternate airlines to your destination round-trip include Spirit Airlines and United Airlines. Frontier is priced at 70% lower than the current average price of a flight leaving 3 months from now.

  • 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 $358, our data indicates the cheapest price to be $180. The most popular route (Milwaukee-Mitchell - San Diego), is priced around $231.

  • 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, September is the cheapest month in which you can book a flight from Milwaukee to San Diego (average of $88). Flying from Milwaukee to San Diego in May is currently the most expensive (average of $197). 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
Coronado
La Mesa
Poway
Lemon Grove
National City

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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.
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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 octubre 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$121Average$269FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$162Average$265FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$235Average$391FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$250Average$428FlexibilityNo cancel feeOn-time71%
DeltaCheapest$256Average$402FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$278Average$441FlexibilityNo cancel feeOn-time63%

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