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$74+ 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 10/18. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — SAN
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
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 September 16, 2025.

Round-trip from

$133
(United Airlines)

One-way from

$74
(Trip.com)

Popular in

June

Cheapest in

November

Average price

$387

Good round-trip deal

$308 or less
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 ($7 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 16, 2025.

This KAYAK deal was found by Cheapflights users on 9/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/49:20 amORD - SAN
Nonstop4h 25mAlaska Airlines
Sat 11/81:41 pmSAN - ORD
Nonstop4h 14mAlaska Airlines
Deal found 9/14$139
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Tue 9/3011:15 amORD - SAN
1 stop14h 19mMultiple Airlines
Fri 10/32:31 pmSAN - ORD
1 stop6h 09mMultiple Airlines
Deal found 9/16$141
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Sat 10/1810:00 amORD - SAN
Nonstop5h 00mHawaiian Airlines
Sat 10/258:10 amSAN - ORD
Nonstop4h 40mHawaiian Airlines
Deal found 9/15$144
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Tue 9/3011:15 amORD - SAN
1 stop14h 19mMultiple Airlines
Sat 10/112:24 pmSAN - ORD
1 stop7h 29mMultiple Airlines
Deal found 9/15$145
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 10/111:15 amORD - SAN
1 stop14h 19mMultiple Airlines
Sun 10/59:03 pmSAN - ORD
1 stop10h 34mMultiple Airlines
Deal found 9/15$147
This Trip.com deal was found by Cheapflights users on 9/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/188:59 pmORD - SAN
Nonstop4h 20mAlaska Airlines
Tue 12/212:45 pmSAN - ORD
Nonstop4h 09mAlaska Airlines
Deal found 9/14$149
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 10/111:15 amORD - SAN
1 stop14h 19mMultiple Airlines
Fri 10/101:06 pmSAN - ORD
1 stop9h 53mMultiple Airlines
Deal found 9/15$151
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Mon 9/296:05 pmORD - SAN
1 stop6h 21mMultiple Airlines
Sat 10/112:24 pmSAN - ORD
1 stop7h 29mMultiple Airlines
Deal found 9/15$152
This Hawaiian Airlines deal was found by Cheapflights users on 9/14. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/147:59 pmORD - SAN
Nonstop5h 00mHawaiian Airlines
Tue 10/218:10 amSAN - ORD
Nonstop4h 40mHawaiian Airlines
Deal found 9/14$153
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Sun 11/96:00 amMSP - SAN
1 stop7h 17mFrontier
Mon 11/176:41 amSAN - MSP
1 stop15h 33mFrontier
Deal found 9/14$182
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Sun 10/125:00 amMKE - SAN
1 stop6h 40mUnited Airlines
Wed 10/156:53 amSAN - MKE
1 stop8h 06mUnited Airlines
Deal found 9/15$183
This CheapOair deal was found by Cheapflights users on 9/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/29:31 pmMSP - SAN
1 stop22h 45mFrontier
Sat 10/47:15 amSAN - MSP
1 stop11h 31mFrontier
Deal found 9/14$185

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 September 16, 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

Tue 10/14

3:50 pm-6:50 pm

Nonstop5h 00m

San Diego

Sat 10/18

5:19 pm-11:59 pm

Nonstop4h 40m

$153

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Sat 10/18

10:00 am-1:00 pm

Nonstop5h 00m

San Diego

Tue 10/21

8:10 am-2:50 pm

Nonstop4h 40m

$153

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Wed 11/12

2:54 pm-5:19 pm

Nonstop4h 25m

San Diego

Tue 11/18

5:49 pm-11:59 pm

Nonstop4h 10m

$153

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Tue 10/14

8:20 am-11:20 am

Nonstop5h 00m

San Diego

Thu 10/23

12:20 pm-6:59 pm

Nonstop4h 39m

$175

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Sun 10/12

8:20 am-11:20 am

Nonstop5h 00m

San Diego

Wed 10/15

12:20 pm-6:59 pm

Nonstop4h 39m

$175

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Wed 12/10

7:59 pm-10:27 pm

Nonstop4h 28m

San Diego

Sun 12/14

8:00 am-2:09 pm

Nonstop4h 09m

$175

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Mon 11/24

8:20 am-10:46 am

Nonstop4h 26m

San Diego

Tue 12/2

12:45 pm-6:54 pm

Nonstop4h 09m

$175

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Tue 10/14

3:50 pm-6:50 pm

Nonstop5h 00m

San Diego

Mon 10/20

5:19 pm-11:59 pm

Nonstop4h 40m

$175

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Wed 10/15

8:20 am-11:20 am

Nonstop5h 00m

San Diego

Wed 10/15

5:19 pm-11:59 pm

Nonstop4h 40m

$175

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Thu 11/27

8:20 am-10:46 am

Nonstop4h 26m

San Diego

Tue 12/2

12:45 pm-6:54 pm

Nonstop4h 09m

$175

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

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, August is the cheapest month in which you can book a flight from Wisconsin to San Diego (average of $286). Flying from Wisconsin to San Diego in March is currently the most expensive (average of $366). 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 September 16, 2025.

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

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 $153, Alaska Airlines can have you in San Diego from Wisconsin in 5h. 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 Hawaiian Airlines, which is currently one of the cheapest options available, starting at $77. Alaska Airlines flights start at $77 while deals on Frontier start at $88 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 $303. While the most popular route (Chicago O'Hare Intl - San Diego) can be booked for $139 on average, our data indicates $404 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, August is the cheapest month in which you can book a flight from Wisconsin to San Diego (average of $286). Flying from Wisconsin to San Diego in March is currently the most expensive (average of $366). 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
La Mesa
Poway
Lemon Grove
Coronado
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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$121Average$268FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$162Average$270FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$219Average$469FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$251Average$486FlexibilityNo cancel feeOn-time69%
DeltaCheapest$256Average$450FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$303Average$439FlexibilityNo cancel feeOn-time63%

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