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$61+ Cheap flights from Wisconsin to San Diego (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 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — SAN
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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Cheap flight deals from Wisconsin to San Diego

Keep the following information in mind while searching for Wisconsin to San Diego flight deals. Data was last updated November 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$163
(Kiwi.com)

One-way from

$61
(Trip.com)

Popular in

June

Cheapest in

May

Average price

$366

Good round-trip deal

$433 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 Wisconsin to San Diego
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One-way flight from Wisconsin to San Diego
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Highest demand for flights based on searches. 2% potential increase in price ($12 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Wisconsin to San Diego.
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Find flight deals from Wisconsin to San Diego

Cheapest flights from Wisconsin to San Diego
Explore the most affordable flight options available from Wisconsin to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 26, 2025.

This Alaska Airlines deal was found by Cheapflights users on 11/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/188:39 amORD - SAN
Nonstop4h 48mAlaska Airlines
Thu 12/258:05 amSAN - ORD
Nonstop4h 32mAlaska Airlines
Deal found 11/25$165
This United Airlines deal was found by Cheapflights users on 11/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/177:10 amORD - SAN
Nonstop4h 30mUnited Airlines
Mon 1/194:47 pmSAN - ORD
Nonstop4h 12mUnited Airlines
Deal found 11/24$167
This American Airlines deal was found by Cheapflights users on 11/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/178:15 amORD - SAN
Nonstop4h 33mAmerican Airlines
Sun 1/116:20 amSAN - ORD
Nonstop4h 09mAmerican Airlines
Deal found 11/25$170
This Southwest deal was found by Cheapflights users on 11/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/172:15 pmORD - SAN
1 stop8h 50mSouthwest
Tue 1/61:00 pmSAN - ORD
1 stop7h 35mSouthwest
Deal found 11/24$176
This Alaska Airlines deal was found by Cheapflights users on 11/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/188:39 amORD - SAN
Nonstop4h 48mAlaska Airlines
Thu 1/228:00 amSAN - ORD
Nonstop4h 29mAlaska Airlines
Deal found 11/24$177
This Kiwi.com deal was found by Cheapflights users on 11/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:34 pmORD - SAN
2 stops41h 41mFrontier
Sun 1/1111:47 amSAN - ORD
1 stop28h 58mFrontier
Deal found 11/24$180
This Kiwi.com deal was found by Cheapflights users on 11/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:34 pmORD - SAN
1 stop26h 31mFrontier
Thu 1/82:50 pmSAN - ORD
1 stop28h 42mFrontier
Deal found 11/25$181
This Kiwi.com deal was found by Cheapflights users on 11/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:34 pmORD - SAN
2 stops23h 41mFrontier
Wed 1/71:03 pmSAN - ORD
1 stop23h 54mFrontier
Deal found 11/25$182
This Kiwi.com deal was found by Cheapflights users on 11/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:34 pmORD - SAN
1 stop26h 31mFrontier
Fri 1/910:52 amSAN - ORD
1 stop28h 49mFrontier
Deal found 11/25$186
This Alaska Airlines deal was found by Cheapflights users on 11/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/178:59 pmORD - SAN
Nonstop4h 28mAlaska Airlines
Mon 1/55:31 pmSAN - ORD
Nonstop4h 28mAlaska Airlines
Deal found 11/24$187
This Kiwi.com deal was found by Cheapflights users on 11/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:34 pmORD - SAN
2 stops23h 41mFrontier
Sat 1/102:46 pmSAN - ORD
1 stop22h 11mFrontier
Deal found 11/25$188
This Kiwi.com deal was found by Cheapflights users on 11/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/177:00 amMSP - SAN
2 stops12h 53mFrontier
Sat 12/206:25 amSAN - MSP
1 stop15h 37mFrontier
Deal found 11/24$190

Cheapflights Fare Finder

 
Customize your flight search to find flights from Wisconsin 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 November 26, 2025.
Use the filters below to find and compare flights from Wisconsin to San Diego that are best for you.

Fly from

Wisconsin

Fly to

San Diego

Route

Depart

Return

Price

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Thu 2/19

3:07 pm-5:52 pm

Nonstop4h 45m

San Diego

Mon 2/23

5:42 pm-11:59 pm

Nonstop4h 17m

$165

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Sat 1/10

3:44 pm-6:26 pm

Nonstop4h 42m

San Diego

Fri 1/16

5:10 pm-11:37 pm

Nonstop4h 27m

$187

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Wed 12/17

8:50 am-11:30 am

Nonstop4h 40m

San Diego

Tue 1/6

1:51 pm-10:58 pm

1 stop7h 07m

$197

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Mon 1/26

3:35 pm-11:09 pm

1 stop9h 34m

San Diego

Wed 1/28

8:00 am-2:29 pm

Nonstop4h 29m

$197

MinneapolisSan Diego

MSP - SAN

MSPSAN

Minneapolis St Paul

Sun 1/18

3:24 pm-5:21 pm

Nonstop3h 57m

San Diego

Fri 1/23

6:19 pm-11:59 pm

Nonstop3h 40m

$198

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Sun 2/22

8:20 am-11:09 am

Nonstop4h 49m

San Diego

Fri 2/27

6:15 am-4:33 pm

1 stop8h 18m

$207

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Thu 1/22

6:06 pm-10:07 am

1 stop18h 01m

San Diego

Sun 1/25

8:00 am-2:29 pm

Nonstop4h 29m

$207

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Tue 1/13

2:06 pm-8:11 pm

1 stop8h 05m

San Diego

Thu 1/15

5:10 pm-11:37 pm

Nonstop4h 27m

$207

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Wed 2/4

7:15 am-2:45 pm

2 stops9h 30m

San Diego

Mon 2/9

10:30 am-10:35 pm

2 stops10h 05m

$217

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Wed 12/24

3:37 pm-6:19 pm

Nonstop4h 42m

San Diego

Tue 1/6

1:30 pm-8:02 pm

Nonstop4h 32m

$217

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/24

Showing 1-10 of 60 results
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Best time to book a flight from Wisconsin to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Wisconsin 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 Wisconsin to San Diego

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

Currently, December is the cheapest month in which you can book a flight from Wisconsin to San Diego (average of $166). Flying from Wisconsin to San Diego in January is currently the most expensive (average of $238). 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 WI to SAN?

Find hourly flight availability from Wisconsin 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 November 26, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 24% on flights from Wisconsin to San Diego by exploring options for tickets in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from Wisconsin to San Diego. Price data was last updated on December 16, 2024.

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

Related info for your journey

Find useful and relevant information for your journey from Wisconsin 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 airport do you fly into for flights to San Diego from Wisconsin?

    San Diego (SAN), located 2.6 mi from the city center, is the airport you fly into when you book flights from Wisconsin to San Diego.

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

    For as low as $198, Alaska Airlines can have you in San Diego from Wisconsin in 3h 57m. The distance between Wisconsin and San Diego is about 1530 mi. All flights are typically nonstop.

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

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $68. United Airlines flights start at $77 while deals on Alaska Airlines start at $79 one-way.

  • What are the most popular routes from Wisconsin to San Diego?

    The most popular route from Wisconsin to San Diego is Chicago O'Hare Intl - San Diego. You may also consider Minneapolis St Paul - San Diego or Milwaukee-Mitchell - San Diego.

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

    Looking at all options, your cheapest flight can be booked for $180. While the most popular route (Chicago O'Hare Intl - San Diego) can be booked for $140 on average, our data indicates $356 when flying from Wisconsin to San Diego.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Wisconsin 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 Wisconsin to San Diego?

    Currently, December is the cheapest month in which you can book a flight from Wisconsin to San Diego (average of $166). Flying from Wisconsin to San Diego in January is currently the most expensive (average of $238). 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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Top 6 airlines flying from Wisconsin to San Diego

Discover the top 6 airlines that operate flights from Wisconsin 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 November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$121Average$268FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$162Average$243FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$221Average$467FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$235Average$446FlexibilityNo cancel feeOn-time69%
DeltaCheapest$256Average$408FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$276Average$442FlexibilityNo cancel feeOn-time63%

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