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$54+ 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 12/23. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — SAN
nov. 22 — nov. 291
sáb. 11/22
sáb. 11/29
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 octubre 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$149
(American Airlines)

One-way from

$54
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$418

Good round-trip deal

$456 or less

Good one-way deal

$208 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. 3% potential increase in price ($13 potential increase over avg. RT price).
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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 Wisconsin to San Diego.
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Price to beat on a one-way 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 octubre 23, 2025.

This American Airlines deal was found by Cheapflights users on 10/21. 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.
sáb. 12/63:03 pmMKE - SAN
1 stop7h 54mAmerican Airlines
mié. 12/1012:43 pmSAN - MKE
1 stop8h 18mAmerican Airlines
Deal found 10/21$149
This Cheapflightsfares deal was found by Cheapflights users on 10/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/128:59 pmORD - SAN
Nonstop4h 20mAlaska Airlines
mié. 11/198:00 amSAN - ORD
Nonstop3h 54mAlaska Airlines
Deal found 10/21$154
This United Airlines deal was found by Cheapflights users on 10/21. 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.
mar. 11/188:51 amORD - SAN
Nonstop4h 40mUnited Airlines
mar. 11/255:15 pmSAN - ORD
Nonstop4h 09mUnited Airlines
Deal found 10/21$155
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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.
mar. 11/118:59 pmORD - SAN
Nonstop4h 20mAlaska Airlines
mié. 11/198:00 amSAN - ORD
Nonstop3h 54mAlaska Airlines
Deal found 10/21$157
This Kiwi.com deal was found by Cheapflights users on 10/21. 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.
mar. 11/1111:00 amORD - SAN
1 stop11h 24mFrontier
mié. 11/126:41 amSAN - ORD
1 stop6h 58mFrontier
Deal found 10/21$158
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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.
mié. 11/268:49 pmORD - SAN
Nonstop4h 24mAlaska Airlines
jue. 12/44:25 pmSAN - ORD
1 stop11h 56mAlaska Airlines
Deal found 10/21$159
This Alaska Airlines deal was found by Cheapflights users on 10/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/198:59 pmORD - SAN
Nonstop4h 20mAlaska Airlines
lun. 11/245:31 pmSAN - ORD
Nonstop4h 01mAlaska Airlines
Deal found 10/22$160
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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.
mar. 11/188:59 pmORD - SAN
Nonstop4h 20mAlaska Airlines
sáb. 12/66:30 pmSAN - ORD
1 stop9h 51mAlaska Airlines
Deal found 10/21$161
This Kiwi.com deal was found by Cheapflights users on 10/21. 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.
jue. 11/206:45 pmORD - SAN
1 stop22h 22mFrontier
lun. 11/248:39 amSAN - ORD
2 stops13h 31mFrontier
Deal found 10/21$162
This Kiwi.com deal was found by Cheapflights users on 10/21. 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.
mar. 11/116:05 pmORD - SAN
1 stop19h 47mMultiple Airlines
lun. 11/173:59 pmSAN - ORD
1 stop11h 33mMultiple Airlines
Deal found 10/21$163
This Kiwi.com deal was found by Cheapflights users on 10/21. 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.
jue. 12/119:21 amORD - SAN
1 stop16h 30mFrontier
dom. 12/142:02 pmSAN - ORD
1 stop28h 15mFrontier
Deal found 10/21$164
This Cheapflightsfares deal was found by Cheapflights users on 10/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/142:54 pmORD - SAN
Nonstop4h 25mAlaska Airlines
mar. 11/185:49 pmSAN - ORD
Nonstop4h 10mAlaska Airlines
Deal found 10/22$165

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 octubre 23, 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

jue. 11/13

2:54 pm-5:19 pm

Nonstop4h 25m

San Diego

dom. 11/16

1:41 pm-7:55 pm

Nonstop4h 14m

$177

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

sáb. 12/6

3:35 pm-10:47 pm

1 stop9h 12m

San Diego

sáb. 12/13

6:30 pm-6:21 am

1 stop9h 51m

$178

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

mar. 12/2

8:59 pm-11:27 pm

Nonstop4h 28m

San Diego

vie. 12/5

6:15 am-4:55 pm

1 stop8h 40m

$185

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

jue. 12/4

3:35 pm-10:47 pm

1 stop9h 12m

San Diego

lun. 12/8

9:06 pm-1:09 pm

1 stop14h 03m

$192

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

vie. 12/5

3:35 pm-10:47 pm

1 stop9h 12m

San Diego

dom. 12/7

6:15 am-4:55 pm

1 stop8h 40m

$192

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

mié. 11/19

2:30 pm-7:52 pm

1 stop7h 22m

San Diego

mié. 11/26

5:15 pm-11:24 pm

Nonstop4h 09m

$198

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

lun. 1/5

7:00 pm-11:20 pm

1 stop6h 20m

San Diego

lun. 1/12

8:35 am-6:30 pm

1 stop7h 55m

$209

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

dom. 12/21

8:39 am-11:27 am

Nonstop4h 48m

San Diego

mié. 12/31

8:05 am-2:37 pm

Nonstop4h 32m

$217

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

dom. 12/21

8:39 am-11:27 am

Nonstop4h 48m

San Diego

mar. 12/30

8:05 am-2:37 pm

Nonstop4h 32m

$217

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

vie. 1/16

2:40 pm-7:54 pm

1 stop7h 14m

San Diego

lun. 1/19

8:37 pm-5:15 am

1 stop6h 38m

$218

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/22

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, November is the cheapest month in which you can book a flight from Wisconsin to San Diego (average of $152). Flying from Wisconsin to San Diego in March is currently the most expensive (average of $224). 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 octubre 23, 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 $177, Alaska Airlines can have you in San Diego from Wisconsin in 4h 25m. The distance between Wisconsin and San Diego is about 1719 mi. This flight may include one or multiple stops.

  • 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. Alaska Airlines flights start at $79 while deals on Southwest start at $82 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 $103 on average, our data indicates $390 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, November is the cheapest month in which you can book a flight from Wisconsin to San Diego (average of $152). Flying from Wisconsin to San Diego in March is currently the most expensive (average of $224). 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
Imperial Beach
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 octubre 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$121Average$268FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$173Average$297FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$235Average$448FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$250Average$469FlexibilityNo cancel feeOn-time71%
DeltaCheapest$256Average$415FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$288Average$442FlexibilityNo cancel feeOn-time63%

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