What is the cheapest airline that flies from Milwaukee-Mitchell to San Diego?

Frontier, Spirit Airlines, and Alaska Airlines are the most popular carriers operating from Milwaukee-Mitchell to San Diego

What airlines fly to San Diego?

American Airlines, United Airlines and Southwest are the top three most popular airlines that fly to San Diego from Milwaukee according to our data. American Airlines is the first choice among our users, with 52% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 8 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest travel time from Milwaukee to San Diego?

Flights connecting via Phoenix (PHX) have the shortest average one-way travel time: 5h 52m.

Which layover airport has the shortest connection time from Milwaukee to San Diego?

Phoenix (PHX) has the shortest average layover time for this route: 0h 49m.

Which layover airport offers the lowest fares from Milwaukee to San Diego?

Flights via Las Vegas (LAS) offer the lowest average round-trip price of $365.

Which airport is the most popular layover for flights between Milwaukee and San Diego?

Phoenix (PHX) was the most common stop: 60% of momondo users choosing 1-stop flights on this route connected there.

When did momondo last update prices for flights from Milwaukee-Mitchell Airport to San Diego Airport?

Prices for flights from Milwaukee-Mitchell Airport to San Diego Airport refresh daily.

How many operators does momondo search for flights from Milwaukee-Mitchell Airport to San Diego Airport?

The number of operators available for flights from Milwaukee-Mitchell Airport to San Diego Airport is 6 as of August 2025.

How old do you have to be to fly from Milwaukee-Mitchell Airport to San Diego Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Milwaukee-Mitchell Airport to San Diego Airport.

What documentation or ID do you need to fly to San Diego Airport?

The travel and health documents required for your trip to San Diego Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Diego Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$76 Cheap Flights from Milwaukee to San Diego in 2025

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Find the cheapest flights from Milwaukee to San Diego

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

8:04 pm - 11:50 pmMKE-SAN

5h 46m1 stop

6:00 pm - 7:19 pmSAN-MKE

23h 19m1 stop

$171Frontier

Find Deal

Mon, Nov 10 - Thu, Nov 13

8:04 pm - 11:53 pmMKE-SAN

5h 49m1 stop

6:25 am - 7:18 pmSAN-MKE

10h 53m2 stops

$191Frontier

Find Deal

Mon, Oct 6 - Fri, Oct 17

9:50 pm - 7:29 amMKE-SAN

11h 39m1 stop

10:20 am - 7:19 pmSAN-MKE

6h 59m1 stop

$198

Find Deal

Thu, Sep 4 - Mon, Sep 8

5:26 am - 9:59 amMKE-SAN

6h 33m1 stop

12:18 pm - 10:14 pmSAN-MKE

7h 56m1 stop

$225American Airlines

Find Deal

Wed, Oct 8 - Wed, Oct 15

8:29 am - 2:10 pmMKE-SAN

7h 41m1 stop

10:02 am - 6:06 pmSAN-MKE

6h 04m1 stop

$226American Airlines

Find Deal

Tue, Oct 21 - Fri, Oct 31

9:50 pm - 7:29 amMKE-SAN

11h 39m1 stop

6:15 am - 8:55 pmSAN-MKE

12h 40m1 stop

$229Spirit Airlines

Find Deal

Thu, Sep 4 - Sun, Sep 7

9:50 pm - 7:29 amMKE-SAN

11h 39m1 stop

8:25 am - 8:55 pmSAN-MKE

10h 30m1 stop

$230Spirit Airlines

Find Deal

Thu, Sep 4 - Sun, Sep 7

8:20 am - 9:50 pmMKE-SAN

15h 30m2 stops

7:45 am - 5:35 pmSAN-MKE

7h 50m1 stop

$237Southwest

Find Deal

Tue, Sep 23 - Thu, Sep 25

5:20 am - 9:00 amMKE-SAN

5h 40m1 stop

9:10 pm - 10:10 amSAN-MKE

11h 00m1 stop

$242Southwest

Find Deal

Sun, Sep 21 - Fri, Sep 26

2:59 pm - 8:26 pmMKE-SAN

7h 27m1 stop

6:15 am - 5:52 pmSAN-MKE

9h 37m1 stop

$257Delta

Find Deal

Tue, Sep 23 - Sun, Sep 28

Alaska Airlines flights from Milwaukee to San Diego

Our best Alaska Airlines deals on Milwaukee to San Diego flight tickets

Alaska Airlines

Sep 24

MKE3:20 pmMilwaukee-Mitchell

10h 33m

1 stop

SAN11:53 pmSan Diego

Sep 26

SAN8:33 amSan Diego

13h 29m

2 stops

MKE12:02 amMilwaukee-Mitchell

$286

Find similar

Alaska Airlines

Sep 18

MKE3:20 pmMilwaukee-Mitchell

10h 33m

1 stop

SAN11:53 pmSan Diego

Sep 22

SAN8:33 amSan Diego

13h 29m

2 stops

MKE12:02 amMilwaukee-Mitchell

$287

Find similar

Delta flights from Milwaukee to San Diego

Our best Delta deals on Milwaukee to San Diego flight tickets

Delta

Sep 23

MKE2:59 pmMilwaukee-Mitchell

7h 27m

1 stop

SAN8:26 pmSan Diego

Sep 28

SAN6:15 amSan Diego

9h 37m

1 stop

MKE5:52 pmMilwaukee-Mitchell

$257

Find similar

Delta

Aug 27

MKE5:25 amMilwaukee-Mitchell

9h 03m

1 stop

SAN12:28 pmSan Diego

Sep 1

SAN10:40 pmSan Diego

8h 03m

1 stop

MKE8:43 amMilwaukee-Mitchell

$382

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Fly from

Fly to

Route

Depart

Return

Price

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

Mon 11/10

8:04 pm-11:50 pm

1 stop5h 46m

San Diego

Thu 11/13

6:00 pm-7:19 pm

1 stop23h 19m

$171

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

Mon 10/6

8:04 pm-11:53 pm

1 stop5h 49m

San Diego

Fri 10/17

6:25 am-7:18 pm

2 stops10h 53m

$191

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

Thu 9/4

9:50 pm-7:29 am

1 stop11h 39m

San Diego

Mon 9/8

10:20 am-7:19 pm

1 stop6h 59m

$198

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

Wed 10/8

5:26 am-9:59 am

1 stop6h 33m

San Diego

Wed 10/15

12:18 pm-10:14 pm

1 stop7h 56m

$225

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

Tue 10/21

8:29 am-2:10 pm

1 stop7h 41m

San Diego

Fri 10/31

10:02 am-6:06 pm

1 stop6h 04m

$226

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

Thu 9/4

9:50 pm-7:29 am

1 stop11h 39m

San Diego

Sun 9/7

6:15 am-8:55 pm

1 stop12h 40m

$229

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

Thu 9/4

9:50 pm-7:29 am

1 stop11h 39m

San Diego

Sun 9/7

8:25 am-8:55 pm

1 stop10h 30m

$230

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

Tue 9/23

8:20 am-9:50 pm

2 stops15h 30m

San Diego

Thu 9/25

7:45 am-5:35 pm

1 stop7h 50m

$237

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

Sun 9/21

5:20 am-9:00 am

1 stop5h 40m

San Diego

Fri 9/26

9:10 pm-10:10 am

1 stop11h 00m

$242

MilwaukeeSan Diego

MKE - SAN

MKESAN

Milwaukee-Mitchell

Tue 9/23

2:59 pm-8:26 pm

1 stop7h 27m

San Diego

Sun 9/28

6:15 am-5:52 pm

1 stop9h 37m

$257

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Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Milwaukee to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

Other information

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of November, then departing from Milwaukee during the month May is also very affordable. Most momondo users find prices during this month for around $356.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from Milwaukee to San Diego is on a Tuesday. Travelers who choose to depart for San Diego on a Tuesday will often find tickets for as low as $304. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $597. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is in the evening when flights can be purchased for as low as $326. Flights in the morning are often more expensive with an average ticket price of $447.

What is the cheapest Milwaukee-Mitchell to San Diego flight route?

Fly from Milwaukee-Mitchell to San Diego for the best Milwaukee-Mitchell - San Diego flight prices

How far in advance should I book a flight to San Diego?

You are more likely to see cheaper flights to San Diego from Milwaukee when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $409 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Milwaukee for as low as $346 on momondo.

What cabin class options are available on Milwaukee-Mitchell to San Diego flights?

There are 1 cabin classes available to choose from on Milwaukee-Mitchell to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Milwaukee to San Diego flight prices changed over time?

As of August 2025, prices for Milwaukee to San Diego flights are approximately 2% more expensive when compared to flights at the same time last year.

When to book flights from Milwaukee to San Diego

Are you open to changing your travel dates? Check out the ideal times to fly from Milwaukee to San Diego according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Milwaukee to San Diego (MKE to SAN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Milwaukee to San Diego

Best Price Found	$76
Fastest flight time	4h 15m
Direct flights	Every day
Airports in San Diego	1 airport

The best one-way flight to San Diego from Milwaukee in the past 72 hours is $76. The best round-trip flight deal from Milwaukee to San Diego found on momondo in the last 72 hours is $171.

The fastest flight from Milwaukee to San Diego takes 4h 15m

Direct flights go from Milwaukee to San Diego every day.

There is 1 airport near San Diego: San Diego (SAN)

Search flight deals

How far is Milwaukee-Mitchell to San Diego by plane?
Milwaukee-Mitchell and San Diego are 1734.6 mi apart from one another. By plane, this route typically takes 4h 15m.
When did momondo last update prices for flights from Milwaukee-Mitchell Airport to San Diego Airport?
Prices for flights from Milwaukee-Mitchell Airport to San Diego Airport refresh daily.
How many operators does momondo search for flights from Milwaukee-Mitchell Airport to San Diego Airport?
The number of operators available for flights from Milwaukee-Mitchell Airport to San Diego Airport is 6 as of August 2025.
How old do you have to be to fly from Milwaukee-Mitchell Airport to San Diego Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Milwaukee-Mitchell Airport to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The travel and health documents required for your trip to San Diego Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Diego Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Milwaukee to San Diego?
Based on momondo bookings for flights between Milwaukee and San Diego, the leading plane model is Boeing 737-700 Passenger/BBJ1 (winglets), making up 38.46% of the total bookings. Other popular models include Boeing 737 MAX 8 with 23.08%, Boeing 737-800 with 15.38%, and Airbus A318/A319/A320/A321 with 7.69%.
What is the most popular airline from Milwaukee to San Diego?
momondo data reveals that the most frequently booked airline on the route from Milwaukee to San Diego is Southwest, representing 37% of all bookings. The subsequent popular airlines are American Airlines at 24%, Delta at 15%, and Spirit Airlines at 10%.

Best airlines flying from Milwaukee to San Diego

Compare and see reviews for airlines that fly from Milwaukee to San Diego with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $112	Free Cancellation	Rating 5.8 3,219 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $162	Free Cancellation	Rating 6.3 8,045 reviews	Search Spirit Airlines flights
American Airlines	PriceFrom $219	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $259	Free Cancellation	Rating 7.4 8,916 reviews	Search United Airlines flights
Delta	PriceFrom $278	Free Cancellation	Rating 8.0 7,980 reviews	Search Delta flights
Southwest	PriceFrom $313	Free Cancellation	Rating 8.0 4,244 reviews	Search Southwest flights

Coronado

Chula Vista

El Cajon

Julian

National City

La Mesa

Imperial Beach

Poway

San Ysidro

Borrego Springs

Alpine

Lemon Grove

Santee

Why use momondo?

Why should I use momondo to find a flight deal from Milwaukee to San Diego?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Milwaukee to San Diego. momondo saves you time and could save you money on your trip.

Can I find flights from Milwaukee to San Diego with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San Diego from Milwaukee with this policy.

How can momondo help me find flights from Milwaukee to San Diego?

momondo provides multiple filters to help you find the best flight to San Diego from Milwaukee. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Milwaukee to San Diego right now. Can momondo alert me if prices change?

Price alerts on flights to San Diego from Milwaukee are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your San Diego trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Flights to New Yorkfrom $58

Flights to Los Angelesfrom $46

Flights to Miamifrom $61

Flights to Chicagofrom $45

Flights to Orlandofrom $45

Flights to Las Vegasfrom $17

Flights to San Franciscofrom $59

Flights to Washington, D.C.from $58

Flights to Bostonfrom $76

Flights to Atlantafrom $48

Flights to Dallasfrom $57

Flights to Seattlefrom $71

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Flights from Milwaukee-Mitchell to Los Angeles

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Flights from Milwaukee-Mitchell to Orlando

Flights from Milwaukee-Mitchell to Washington, D.C. Reagan-National

Flights from Milwaukee-Mitchell to Denver Intl

Flights from Milwaukee-Mitchell to Detroit Metropolitan Wayne County

Cheap flights from Milwaukee to San Diego from $76

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Milwaukee to San Diego departing on 9/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Alaska Airlines flights from Milwaukee to San Diego

Our best Alaska Airlines deals on Milwaukee to San Diego flight tickets

Delta flights from Milwaukee to San Diego

Our best Delta deals on Milwaukee to San Diego flight tickets

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How to get the cheapest flight ticket from Milwaukee to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of November, then departing from Milwaukee during the month May is also very affordable. Most momondo users find prices during this month for around $356.

What is the cheapest day to depart on your flight to San Diego?

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is in the evening when flights can be purchased for as low as $326. Flights in the morning are often more expensive with an average ticket price of $447.

What is the cheapest Milwaukee-Mitchell to San Diego flight route?

Fly from Milwaukee-Mitchell to San Diego for the best Milwaukee-Mitchell - San Diego flight prices

How far in advance should I book a flight to San Diego?

What cabin class options are available on Milwaukee-Mitchell to San Diego flights?

There are 1 cabin classes available to choose from on Milwaukee-Mitchell to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Milwaukee to San Diego flight prices changed over time?

As of August 2025, prices for Milwaukee to San Diego flights are approximately 2% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from Milwaukee-Mitchell to San Diego?

Frontier, Spirit Airlines, and Alaska Airlines are the most popular carriers operating from Milwaukee-Mitchell to San Diego

What airlines fly to San Diego?

Which airport is the most popular layover for flights between Milwaukee and San Diego?

Phoenix (PHX) was the most common stop: 60% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Milwaukee to San Diego?

Flights via Las Vegas (LAS) offer the lowest average round-trip price of $365.

Which layover airport has the shortest travel time from Milwaukee to San Diego?

Flights connecting via Phoenix (PHX) have the shortest average one-way travel time: 5h 52m.

Which layover airport has the shortest connection time from Milwaukee to San Diego?

Phoenix (PHX) has the shortest average layover time for this route: 0h 49m.

When to book flights from Milwaukee to San Diego

Cheap Milwaukee to San Diego (MKE to SAN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Milwaukee to San Diego

Best Price Found

Fastest flight time

Direct flights

Airports in San Diego

How far is Milwaukee-Mitchell to San Diego by plane?

When did momondo last update prices for flights from Milwaukee-Mitchell Airport to San Diego Airport?

How many operators does momondo search for flights from Milwaukee-Mitchell Airport to San Diego Airport?

How old do you have to be to fly from Milwaukee-Mitchell Airport to San Diego Airport?

What documentation or ID do you need to fly to San Diego Airport?

What is the most popular plane model from Milwaukee to San Diego?

What is the most popular airline from Milwaukee to San Diego?

Best airlines flying from Milwaukee to San Diego

Compare and see reviews for airlines that fly from Milwaukee to San Diego with momondo

Traveling to a place near San Diego?

Why use momondo?

Why should I use momondo to find a flight deal from Milwaukee to San Diego?

Can I find flights from Milwaukee to San Diego with flexible booking policies on momondo?

How can momondo help me find flights from Milwaukee to San Diego?

I’m not ready to book a flight from Milwaukee to San Diego right now. Can momondo alert me if prices change?

An easier way to manage your San Diego trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing California