HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Diego

$105+ 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 6/6. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — SAN
Jun 4 — Jun 111
Thu 6/4
Thu 6/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Wisconsin to San Diego with Cheapflights

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”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 May 5, 2026.

This Frontier deal was found by Cheapflights users on 5/4. 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.
Tue 7/287:59 pm
MSN
-
SAN
1 stop5h 52m
Frontier
Tue 8/46:25 am
SAN
-
MSN
1 stop10h 45m
Frontier
Deal found 5/4$210
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 5/277:00 am
ATW
-
SAN
1 stop16h 12m
Multiple Airlines
Fri 5/296:25 am
SAN
-
ATW
1 stop14h 24m
Multiple Airlines
Deal found 4/29$228
This Priceline deal was found by Cheapflights users on 4/30. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/117:59 pm
MSN
-
SAN
1 stop5h 52m
Frontier
Sun 8/166:25 am
SAN
-
MSN
1 stop10h 45m
Frontier
Deal found 4/30$230
This eDestinos deal was found by Cheapflights users on 5/2. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/169:37 pm
ORD
-
SAN
1 stop13h 05m
Frontier
Tue 5/196:25 am
SAN
-
ORD
1 stop12h 07m
Frontier
Deal found 5/2$237
This Expedia deal was found by Cheapflights users on 4/30. 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.
Mon 8/179:57 pm
ORD
-
SAN
1 stop12h 45m
Frontier
Thu 8/209:37 am
SAN
-
ORD
1 stop9h 16m
Frontier
Deal found 4/30$238
This Booking.com deal was found by Cheapflights users on 5/4. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/279:37 pm
ORD
-
SAN
1 stop28h 13m
Frontier
Fri 5/299:37 am
SAN
-
ORD
1 stop8h 55m
Frontier
Deal found 5/4$239
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 7/38:04 pm
LSE
-
SAN
1 stop21h 28m
Multiple Airlines
Thu 7/94:17 pm
SAN
-
LSE
1 stop24h 57m
Multiple Airlines
Deal found 5/3$240
This Frontier deal was found by Cheapflights users on 5/3. 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.
Sat 5/239:37 pm
ORD
-
SAN
1 stop13h 05m
Frontier
Mon 6/16:25 am
SAN
-
ORD
1 stop12h 07m
Frontier
Deal found 5/3$240
This CheapOair deal was found by Cheapflights users on 4/30. 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 7/147:15 am
ORD
-
SAN
1 stop15h 43m
Frontier
Mon 7/208:29 pm
SAN
-
ORD
1 stop6h 59m
Frontier
Deal found 4/30$241
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 6/29:37 pm
ORD
-
SAN
1 stop13h 05m
Frontier
Wed 6/109:43 am
SAN
-
ORD
2 stops20h 20m
Frontier
Deal found 4/29$242
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 6/29:37 pm
ORD
-
SAN
1 stop13h 05m
Frontier
Tue 6/94:17 pm
SAN
-
ORD
2 stops30h 31m
Frontier
Deal found 4/29$243
This Expedia deal was found by Cheapflights users on 5/4. 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.
Thu 8/137:15 am
ORD
-
SAN
1 stop14h 16m
Frontier
Mon 8/178:29 pm
SAN
-
ORD
1 stop6h 59m
Frontier
Deal found 5/4$244

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 May 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$210
(Frontier)

One-way from

$105
(Frontier)

Popular in

March

Cheapest in

January

Average price

$364

Good round-trip deal

$407 or less

Good one-way deal

$219 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. 7% potential increase in price ($31 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 May 5, 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 8/2

9:28 am-6:58 pm

1 stop11h 30m

San Diego

Sat 8/8

8:29 pm-5:28 am

1 stop6h 59m

$244

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Tue 6/2

1:05 pm-5:20 pm

1 stop6h 15m

San Diego

Tue 6/9

10:40 pm-4:49 am

Nonstop4h 09m

$257

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Sat 6/6

5:00 am-9:02 am

1 stop6h 02m

San Diego

Sat 6/6

10:40 pm-4:49 am

Nonstop4h 09m

$257
Quickest round-trip

MinneapolisSan Diego

MSP - SAN

MSPSAN

Minneapolis St Paul

Sat 5/30

6:46 pm-8:36 pm

Nonstop3h 50m

San Diego

Tue 6/2

11:50 am-5:34 pm

Nonstop3h 44m

$279

MinneapolisSan Diego

MSP - SAN

MSPSAN

Minneapolis St Paul

Wed 6/17

11:38 am-1:29 pm

Nonstop3h 51m

San Diego

Tue 6/23

6:20 am-12:05 pm

Nonstop3h 45m

$279

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Wed 6/3

2:30 pm-7:51 pm

1 stop7h 21m

San Diego

Sun 6/7

10:40 pm-4:49 am

Nonstop4h 09m

$287

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

Wed 6/17

6:55 pm-10:50 pm

1 stop5h 55m

San Diego

Tue 6/23

10:40 pm-9:35 am

1 stop8h 55m

$307

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Fri 5/29

5:30 am-11:16 am

1 stop7h 46m

San Diego

Wed 6/3

12:41 pm-10:37 pm

1 stop7h 56m

$313

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Wed 10/21

5:25 pm-11:55 pm

1 stop8h 30m

San Diego

Wed 10/28

6:15 am-4:37 pm

1 stop8h 22m

$313

MadisonSan Diego

MSN - SAN

MSNSAN

Madison Truax Field

Sat 10/3

5:17 pm-10:44 pm

1 stop7h 27m

San Diego

Mon 10/5

10:30 pm-8:50 am

1 stop8h 20m

$321

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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

How far ahead should I book a flight from Wisconsin to San Diego?

Booking 27 days in advance of your planned departure date is, on average, the best time to get cheap flights from Wisconsin to San Diego. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 May 5, 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 $279, Frontier can have you in San Diego from Wisconsin in 3h 50m. The distance between Wisconsin and San Diego is about 1530 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 $97. American Airlines flights start at $125 while deals on Southwest start at $128 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 $193. While the most popular route (Chicago O'Hare Intl - San Diego) can be booked for $234 on average, our data indicates $371 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Wisconsin to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to San Francisco flights
Newark to San Francisco flights
LaGuardia to San Francisco flights
Newark to Los Angeles flights
Newark to Las Vegas flights
John F Kennedy Intl to Los Angeles flights
John F Kennedy Intl to Las Vegas flights
Dallas/Fort Worth to Las Vegas flights
Dallas/Fort Worth to Los Angeles flights
O'Hare Intl to Las Vegas flights
Seattle to Las Vegas flights
Los Angeles to Las Vegas flights
Hobby to Las Vegas flights
Seattle to Los Angeles flights
Santa Rosa to Los Angeles flights
San Francisco to Las Vegas flights
O'Hare Intl to Los Angeles flights
Detroit to Las Vegas flights
George Bush Intcntl to Las Vegas flights
Atlanta to Las Vegas flights
LaGuardia to Los Angeles flights
San Francisco to Los Angeles flights
Dulles Intl to Las Vegas flights
Hobby to Los Angeles flights
LaGuardia to Las Vegas flights
Dallas/Fort Worth to San Francisco flights
Los Angeles to San Francisco flights
Atlanta to Los Angeles flights
Stewart to San Francisco flights
Denver to Las Vegas flights
Ontario to San Francisco flights
Seattle to San Francisco flights
Dulles Intl to Los Angeles flights
Reagan-National to Los Angeles flights
Dallas/Fort Worth to Ontario flights
O'Hare Intl to San Francisco flights
Boston to Las Vegas flights
Orlando to Las Vegas flights
Baltimore to Los Angeles flights
George Bush Intcntl to Los Angeles flights
Santa Ana to Las Vegas flights
San Jose to Los Angeles flights
Baltimore to Las Vegas flights
John F Kennedy Intl to San Jose flights
Burbank to Las Vegas flights
San Francisco to Santa Ana flights
Boston to Los Angeles flights
John F Kennedy Intl to Ontario flights
Newark to San Jose flights
San Francisco to Ontario flights

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 May 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$118Average$275FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$235Average$402FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$236Average$461FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$247Average$537FlexibilityNo cancel feeOn-time75%
DeltaCheapest$256Average$412FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$275Average$432FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.