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Cheap flights from Milwaukee to Los Angeles from $196

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 Los Angeles departing on 7/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Milwaukee to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
2:40 pm - 7:00 pm
MKE
-
ONT
6h 20m
1 stop
Southwest Logo
4:10 pm - 12:55 am
ONT
-
MKE
6h 45m
1 stop
$391Southwest
Wed, Jul 15 - Wed, Jul 22
Southwest Logo
7:20 am - 12:55 pm
MKE
-
ONT
7h 35m
2 stops
Southwest Logo
4:10 pm - 12:55 am
ONT
-
MKE
6h 45m
1 stop
$392Southwest
Wed, Jul 15 - Wed, Jul 22
Delta Logo
12:47 pm - 6:29 pm
MKE
-
ONT
7h 42m
1 stop
Delta Logo
7:05 am - 4:13 pm
ONT
-
MKE
7h 08m
1 stop
$394Delta
Sat, Aug 22 - Wed, Aug 26
Alaska Airlines Logo
7:02 am - 2:09 pm
MKE
-
ONT
9h 07m
1 stop
Alaska Airlines Logo
12:00 pm - 11:59 pm
ONT
-
MKE
9h 59m
1 stop
$395Alaska Airlines
Tue, Sep 1 - Wed, Sep 2
Alaska Airlines Logo
3:54 pm - 11:42 pm
MKE
-
ONT
9h 48m
1 stop
Alaska Airlines Logo
6:00 am - 4:04 pm
ONT
-
MKE
8h 04m
1 stop
$396Alaska Airlines
Sat, Oct 24 - Wed, Oct 28
Southwest Logo
7:20 am - 12:55 pm
MKE
-
ONT
7h 35m
2 stops
Southwest Logo
12:05 pm - 10:20 pm
ONT
-
MKE
8h 15m
2 stops
$397Southwest
Wed, Jul 15 - Wed, Jul 22
American Airlines Logo
5:06 am - 11:27 am
MKE
-
ONT
8h 21m
2 stops
American Airlines Logo
7:20 am - 5:00 pm
ONT
-
MKE
7h 40m
1 stop
$400American Airlines
Wed, Oct 7 - Wed, Oct 21
Southwest Logo
7:20 am - 12:55 pm
MKE
-
ONT
7h 35m
2 stops
Southwest Logo
12:05 pm - 10:20 pm
ONT
-
MKE
8h 15m
2 stops
$401Southwest
Wed, Jul 15 - Wed, Jul 22
Alaska Airlines Logo
5:00 pm - 11:42 pm
MKE
-
ONT
8h 42m
1 stop
Alaska Airlines Logo
6:00 am - 4:04 pm
ONT
-
MKE
8h 04m
1 stop
$408Alaska Airlines
Tue, Oct 27 - Thu, Oct 29
Alaska Airlines Logo
3:54 pm - 11:42 pm
MKE
-
ONT
9h 48m
1 stop
Alaska Airlines Logo
6:00 am - 4:04 pm
ONT
-
MKE
8h 04m
1 stop
$409Alaska Airlines
Sat, Oct 24 - Thu, Oct 29

Alaska Airlines flights from Milwaukee to Ontario

Our best Alaska Airlines deals on Milwaukee to Ontario flight tickets
Alaska Airlines
Sep 1
MKE7:02 amMilwaukee-Mitchell
9h 07m
1 stop
ONT2:09 pmOntario
Sep 2
ONT12:00 pmOntario
9h 59m
1 stop
MKE11:59 pmMilwaukee-Mitchell
$395
Alaska Airlines
Oct 24
MKE3:54 pmMilwaukee-Mitchell
9h 48m
1 stop
ONT11:42 pmOntario
Nov 3
ONT6:00 amOntario
7h 48m
1 stop
MKE3:48 pmMilwaukee-Mitchell
$396
Alaska Airlines
Oct 27
MKE5:00 pmMilwaukee-Mitchell
8h 42m
1 stop
ONT11:42 pmOntario
Nov 2
ONT6:00 amOntario
7h 48m
1 stop
MKE3:48 pmMilwaukee-Mitchell
$408

United Airlines flights from Milwaukee to Ontario

Our best United Airlines deals on Milwaukee to Ontario flight tickets
United Airlines
Sep 1
MKE10:44 amMilwaukee-Mitchell
11h 17m
2 stops
ONT8:01 pmOntario
Sep 2
ONT5:00 amOntario
6h 29m
1 stop
MKE1:29 pmMilwaukee-Mitchell
$496
United Airlines
Jun 8
MKE2:35 pmMilwaukee-Mitchell
8h 11m
1 stop
ONT8:46 pmOntario
Jul 22
ONT5:00 amOntario
6h 25m
1 stop
MKE1:25 pmMilwaukee-Mitchell
$627
United Airlines
Jun 6
MKE8:16 amMilwaukee-Mitchell
6h 22m
1 stop
ONT12:38 pmOntario
Jun 19
ONT1:18 pmOntario
5h 57m
1 stop
MKE9:15 pmMilwaukee-Mitchell
$667

momondo Fare Finder

 
Customize your flight search to find flights from Milwaukee to Ontario 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, momondo users made 832,500 searches. Data last updated May 26, 2026.
Use the filters below to find and compare flights from Milwaukee to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

MilwaukeeOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

Wed 7/15

2:40 pm-7:00 pm

1 stop6h 20m

Ontario

Wed 7/22

4:10 pm-12:55 am

1 stop6h 45m

$391

MilwaukeeOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

Wed 7/15

7:20 am-12:55 pm

2 stops7h 35m

Ontario

Wed 7/22

4:10 pm-12:55 am

1 stop6h 45m

$392

MilwaukeeOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

Sat 8/22

12:47 pm-6:29 pm

1 stop7h 42m

Ontario

Wed 8/26

7:05 am-4:13 pm

1 stop7h 08m

$394

MilwaukeeOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

Tue 9/1

7:02 am-2:09 pm

1 stop9h 07m

Ontario

Wed 9/2

12:00 pm-11:59 pm

1 stop9h 59m

$395

MilwaukeeOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

Sat 10/24

3:54 pm-11:42 pm

1 stop9h 48m

Ontario

Wed 10/28

6:00 am-4:04 pm

1 stop8h 04m

$396

MilwaukeeOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

Wed 7/15

7:20 am-12:55 pm

2 stops7h 35m

Ontario

Wed 7/22

12:05 pm-10:20 pm

2 stops8h 15m

$397

MilwaukeeOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

Wed 10/7

5:06 am-11:27 am

2 stops8h 21m

Ontario

Wed 10/21

7:20 am-5:00 pm

1 stop7h 40m

$400

MilwaukeeOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

Wed 7/15

7:20 am-12:55 pm

2 stops7h 35m

Ontario

Wed 7/22

12:05 pm-10:20 pm

2 stops8h 15m

$401

MilwaukeeOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

Tue 10/27

5:00 pm-11:42 pm

1 stop8h 42m

Ontario

Thu 10/29

6:00 am-4:04 pm

1 stop8h 04m

$408

MilwaukeeOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

Sat 10/24

3:54 pm-11:42 pm

1 stop9h 48m

Ontario

Thu 10/29

6:00 am-4:04 pm

1 stop8h 04m

$409

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Milwaukee to Ontario

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 typical price of a round-trip flight between Milwaukee and Ontario?

What is the cheapest month to fly to Ontario?

In general, January is the cheapest month to fly from Milwaukee to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $306. If you aren’t able to travel during the month of January, then book flights to Ontario from Milwaukee during September instead. Flights to Ontario in September, while not as cheap as those in January, still average around $364.

How have Milwaukee to Ontario flight prices changed over time?

When to book flights from Milwaukee to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Milwaukee to Ontario according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Milwaukee to Ontario (MKE to ONT) flight deals and tips

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

Fastest flight time

6h 22m

Direct flights

None
The fastest flight from Milwaukee to Ontario takes 6h 22m
There are no direct flights from Milwaukee to Ontario. There are no popular flight routes from Milwaukee to Ontario.
Search flight deals

Frequently asked questions about flying from Milwaukee to Ontario

  • How far is Milwaukee-Mitchell to Ontario by plane?

    There are 1710.4 mi between Milwaukee-Mitchell and Ontario. 6h 22m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Milwaukee-Mitchell Airport to Ontario Airport?

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

  • How many operators does momondo search for flights from Milwaukee-Mitchell Airport to Ontario Airport?

  • How old do you have to be to fly from Milwaukee-Mitchell Airport to Ontario Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Milwaukee-Mitchell Airport to Ontario Airport.

  • What documentation or ID do you need to fly to Ontario Airport?

    The travel and health documents required for your trip to Ontario 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 Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Milwaukee to Ontario?

Best airlines flying from Milwaukee to Ontario

Compare and see reviews for airlines that fly from Milwaukee to Ontario with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $306Free CancellationRating
7.4
9,749 reviews
Search United Airlines flights
SouthwestPriceFrom $316Free CancellationRating
8.0
4,266 reviews
Search Southwest flights
American AirlinesPriceFrom $341Free CancellationRating
7.1
11,629 reviews
Search American Airlines flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Milwaukee to Ontario for you.

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

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

How can momondo help me find flights from Milwaukee to Ontario?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ontario from Milwaukee.

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

Yes momondo offers price alerts on flights to Ontario from Milwaukee. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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