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$91+ 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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — SAN
May 18 — May 251
Mon 5/18
Mon 5/25
1 adult, Economy
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Cheap 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 April 18, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/13. 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 6/39:37 pm
ORD
-
SAN
1 stop13h 05m
Frontier
Mon 6/810:07 pm
SAN
-
ORD
1 stop29h 25m
Frontier
Deal found 4/13$206
This Frontier deal was found by Cheapflights users on 4/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/209:37 pm
ORD
-
SAN
1 stop13h 05m
Frontier
Sat 5/236:25 am
SAN
-
ORD
1 stop12h 07m
Frontier
Deal found 4/13$210
This CheapOair deal was found by Cheapflights users on 4/13. 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.
Tue 4/288:58 pm
ORD
-
SAN
1 stop18h 19m
Frontier
Sat 5/27:15 am
SAN
-
ORD
1 stop24h 30m
Frontier
Deal found 4/13$211
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 5/46:15 am
ORD
-
SAN
1 stop18h 46m
Multiple Airlines
Tue 5/54:17 pm
SAN
-
ORD
2 stops12h 22m
Multiple Airlines
Deal found 4/13$212
This Kiwi.com deal was found by Cheapflights users on 4/17. 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.
Fri 5/89:37 pm
ORD
-
SAN
1 stop28h 13m
Frontier
Mon 5/119:37 am
SAN
-
ORD
1 stop8h 55m
Frontier
Deal found 4/17$213
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 5/2311:57 am
ORD
-
SAN
1 stop8h 28m
Multiple Airlines
Tue 5/266:25 am
SAN
-
ORD
2 stops25h 29m
Multiple Airlines
Deal found 4/13$215
This Delta deal was found by Cheapflights users on 4/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:25 am
ORD
-
SAN
1 stop6h 18m
Delta
Thu 5/76:15 am
SAN
-
ORD
1 stop9h 50m
Delta
Deal found 4/15$216
This Kiwi.com deal was found by Cheapflights users on 4/17. 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 5/69:37 pm
ORD
-
SAN
1 stop13h 05m
Frontier
Mon 5/119:59 pm
SAN
-
ORD
2 stops20h 33m
Frontier
Deal found 4/17$217
This Kiwi.com deal was found by Cheapflights users on 4/13. 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.
Thu 5/79:37 pm
ORD
-
SAN
1 stop13h 05m
Frontier
Tue 5/126:25 am
SAN
-
ORD
1 stop12h 07m
Frontier
Deal found 4/13$218
This Trip.com deal was found by Cheapflights users on 4/14. 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 5/512:40 pm
ORD
-
SAN
1 stop7h 19m
Frontier
Tue 5/126:25 am
SAN
-
ORD
1 stop12h 07m
Frontier
Deal found 4/14$219
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 5/69:37 pm
ORD
-
SAN
1 stop13h 05m
Multiple Airlines
Sun 5/1012:09 pm
SAN
-
ORD
2 stops28h 35m
Multiple Airlines
Deal found 4/13$220
This SmartFares deal was found by Cheapflights users on 4/14. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/98:50 am
ORD
-
SAN
Nonstop4h 40m
Alaska Airlines
Sat 5/1612:34 pm
SAN
-
ORD
Nonstop4h 16m
Alaska Airlines
Deal found 4/14$221

Find 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 April 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$206
(Kiwi.com)

One-way from

$91
(Trip.com)

Popular in

March

Cheapest in

January

Average price

$392

Good round-trip deal

$372 or less

Good one-way deal

$279 or less
Provider with most accurate pricing for Milwaukee-Mitchell-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Milwaukee-Mitchell-San Diego flights.
Search Deals
From Wisconsin to San Diego
Search Deals
One-way flight from Wisconsin to San Diego
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($28 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from Wisconsin to San Diego.
Search Deals
Price to beat on a one-way flight from Wisconsin to San Diego.
Search Deals

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 April 18, 2026.
Use the filters below to find and compare flights from Wisconsin to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Sun 5/3

6:25 am-10:43 am

1 stop6h 18m

San Diego

Fri 5/8

11:38 am-8:14 pm

1 stop6h 36m

$216

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Sat 5/2

7:00 am-2:20 pm

1 stop9h 20m

San Diego

Tue 5/5

9:47 am-6:04 pm

1 stop6h 17m

$245

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Sat 5/23

11:09 am-6:01 pm

1 stop8h 52m

San Diego

Tue 5/26

6:15 am-6:41 pm

1 stop10h 26m

$257

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Sat 5/9

6:24 am-10:37 am

1 stop6h 13m

San Diego

Sun 5/10

6:15 am-4:29 pm

1 stop8h 14m

$287

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Wed 6/3

9:00 am-11:37 am

Nonstop4h 37m

San Diego

Tue 6/9

4:40 pm-5:00 am

1 stop10h 20m

$292

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Sun 5/17

7:05 am-9:42 am

Nonstop4h 37m

San Diego

Sun 5/24

11:44 am-9:04 pm

1 stop7h 20m

$307

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Tue 6/30

5:30 pm-10:34 pm

1 stop7h 04m

San Diego

Tue 7/7

2:00 pm-11:00 pm

1 stop7h 00m

$313

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Sun 5/17

6:06 pm-8:43 pm

Nonstop4h 37m

San Diego

Sun 5/24

6:15 am-12:40 pm

Nonstop4h 25m

$317

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Sun 5/17

9:30 am-6:25 pm

1 stop10h 55m

San Diego

Sun 5/24

6:25 am-8:32 pm

1 stop12h 07m

$326

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Fri 5/8

3:52 pm-6:31 pm

Nonstop4h 39m

San Diego

Mon 5/11

7:35 pm-6:40 am

1 stop9h 05m

$327

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 60 resultsSorted by cheapest first
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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, July is the cheapest month in which you can book a flight from Wisconsin to San Diego (average of $78). Flying from Wisconsin to San Diego in January is currently the most expensive (average of $214). 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 April 18, 2026.

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.

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

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 popular is this Wisconsin to San Diego flight route?

    Within the past month, 3 users have taken a look at flights from Wisconsin to San Diego.

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

    For as low as $292, Delta can have you in San Diego from Wisconsin in 4h 37m. 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 Spirit Airlines, which is currently one of the cheapest options available, starting at $79. Frontier flights start at $97 while deals on American Airlines start at $125 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 $182. While the most popular route (Chicago O'Hare Intl - San Diego) can be booked for $177 on average, our data indicates $460 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, July is the cheapest month in which you can book a flight from Wisconsin to San Diego (average of $78). Flying from Wisconsin to San Diego in January is currently the most expensive (average of $214). 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

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Alternative routes for Wisconsin to San Diego

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Top 7 airlines flying from Wisconsin to San Diego

Discover the top 7 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 April 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$131Average$254FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$173Average$270FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$235Average$398FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$256Average$463FlexibilityNo cancel feeOn-time71%
DeltaCheapest$256Average$416FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$272Average$539FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$275Average$438FlexibilityNo cancel feeOn-time63%

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