Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Milwaukee to Los Angeles from $198

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 6/3. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Milwaukee to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
2:45 pm - 10:14 pm
MKE
-
ONT
9h 29m
1 stop
Delta Logo
10:59 pm - 9:22 am
ONT
-
MKE
8h 23m
1 stop
$395Delta
Wed, Oct 7 - Wed, Oct 21
Southwest Logo
5:30 am - 11:35 am
MKE
-
ONT
8h 05m
1 stop
Southwest Logo
3:00 pm - 12:20 am
ONT
-
MKE
7h 20m
1 stop
$396Southwest
Tue, Jun 2 - Sat, Jun 6
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
American Airlines Logo
12:06 pm - 9:57 pm
MKE
-
ONT
11h 51m
2 stops
American Airlines Logo
1:11 pm - 9:37 pm
ONT
-
MKE
6h 26m
1 stop
$401American Airlines
Tue, Jun 2 - Sat, Jun 6
American Airlines Logo
12:06 pm - 9:57 pm
MKE
-
ONT
11h 51m
2 stops
American Airlines Logo
1:11 pm - 11:34 pm
ONT
-
MKE
8h 23m
2 stops
$405American Airlines
Tue, Jun 2 - Tue, Jun 9
American Airlines Logo
1:30 pm - 9:57 pm
MKE
-
ONT
10h 27m
2 stops
American Airlines Logo
1:11 pm - 11:34 pm
ONT
-
MKE
8h 23m
2 stops
$406American Airlines
Tue, Jun 2 - Sat, Jun 6
Delta Logo
12:56 pm - 6:30 pm
MKE
-
ONT
7h 34m
1 stop
Delta Logo
1:00 pm - 9:43 pm
ONT
-
MKE
6h 43m
1 stop
$408Delta
Sat, Jul 4 - Wed, Jul 8
American Airlines Logo
5:06 am - 11:27 am
MKE
-
ONT
8h 21m
2 stops
American Airlines Logo
10:29 am - 9:10 pm
ONT
-
MKE
8h 41m
2 stops
$410American Airlines
Wed, Oct 7 - Wed, Oct 21
American Airlines Logo
6:21 pm - 11:59 pm
MKE
-
ONT
7h 38m
1 stop
American Airlines Logo
1:11 pm - 11:34 pm
ONT
-
MKE
8h 23m
2 stops
$413American Airlines
Wed, Jun 10 - Sat, Jun 13
Southwest Logo
2:45 pm - 9:35 pm
MKE
-
ONT
8h 50m
2 stops
Southwest Logo
9:20 am - 7:55 pm
ONT
-
MKE
8h 35m
2 stops
$418Southwest
Tue, Oct 27 - Sat, Oct 31

Delta flights from Milwaukee to Ontario

Our best Delta deals on Milwaukee to Ontario flight tickets
Delta
Oct 7
MKE2:45 pmMilwaukee-Mitchell
9h 29m
1 stop
ONT10:14 pmOntario
Oct 21
ONT12:00 pmOntario
7h 58m
1 stop
MKE9:58 pmMilwaukee-Mitchell
$395
Delta
Sep 8
MKE5:55 amMilwaukee-Mitchell
7h 09m
1 stop
ONT11:04 amOntario
Sep 19
ONT1:00 pmOntario
6h 24m
1 stop
MKE9:24 pmMilwaukee-Mitchell
$408
Delta
Jun 8
MKE4:20 pmMilwaukee-Mitchell
7h 28m
1 stop
ONT9:48 pmOntario
Jun 13
ONT7:05 amOntario
10h 12m
1 stop
MKE7:17 pmMilwaukee-Mitchell
$421

American Airlines flights from Milwaukee to Ontario

Our best American Airlines deals on Milwaukee to Ontario flight tickets
American Airlines
Oct 7
MKE5:06 amMilwaukee-Mitchell
8h 21m
2 stops
ONT11:27 amOntario
Oct 21
ONT7:20 amOntario
7h 40m
1 stop
MKE5:00 pmMilwaukee-Mitchell
$400
American Airlines
Jun 2
MKE12:06 pmMilwaukee-Mitchell
11h 51m
2 stops
ONT9:57 pmOntario
Jun 6
ONT1:11 pmOntario
6h 26m
1 stop
MKE9:37 pmMilwaukee-Mitchell
$401
American Airlines
Jun 2
MKE12:06 pmMilwaukee-Mitchell
11h 51m
2 stops
ONT9:57 pmOntario
Jun 9
ONT1:11 pmOntario
8h 23m
2 stops
MKE11:34 pmMilwaukee-Mitchell
$405

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 14, 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

MilwaukeeOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

Wed 10/7

2:45 pm-10:14 pm

1 stop9h 29m

Ontario

Wed 10/21

10:59 pm-9:22 am

1 stop8h 23m

$395

MilwaukeeOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

Tue 6/2

5:30 am-11:35 am

1 stop8h 05m

Ontario

Sat 6/6

3:00 pm-12:20 am

1 stop7h 20m

$396

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

Tue 6/2

12:06 pm-9:57 pm

2 stops11h 51m

Ontario

Sat 6/6

1:11 pm-9:37 pm

1 stop6h 26m

$401

MilwaukeeOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

Tue 6/2

12:06 pm-9:57 pm

2 stops11h 51m

Ontario

Tue 6/9

1:11 pm-11:34 pm

2 stops8h 23m

$405

MilwaukeeOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

Tue 6/2

1:30 pm-9:57 pm

2 stops10h 27m

Ontario

Sat 6/6

1:11 pm-11:34 pm

2 stops8h 23m

$406
Quickest round-trip

MilwaukeeOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

Sat 7/4

12:56 pm-6:30 pm

1 stop7h 34m

Ontario

Wed 7/8

1:00 pm-9:43 pm

1 stop6h 43m

$408

MilwaukeeOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

Wed 10/7

5:06 am-11:27 am

2 stops8h 21m

Ontario

Wed 10/21

10:29 am-9:10 pm

2 stops8h 41m

$410

MilwaukeeOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

Wed 6/10

6:21 pm-11:59 pm

1 stop7h 38m

Ontario

Sat 6/13

1:11 pm-11:34 pm

2 stops8h 23m

$413

MilwaukeeOntario

MKE - ONT

MKEONT

Milwaukee-Mitchell

Tue 10/27

2:45 pm-9:35 pm

2 stops8h 50m

Ontario

Sat 10/31

9:20 am-7:55 pm

2 stops8h 35m

$418

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Los Angeles from

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

7h 22m

Direct flights

None
The fastest flight from Milwaukee to Ontario takes 7h 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. 7h 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
DeltaPriceFrom $300Free CancellationRating
7.9
8,454 reviews
Search Delta flights
SouthwestPriceFrom $316Free CancellationRating
8.0
4,299 reviews
Search Southwest flights
American AirlinesPriceFrom $327Free CancellationRating
7.1
11,664 reviews
Search American Airlines flights
United AirlinesPriceFrom $371Free CancellationRating
7.4
9,711 reviews
Search United 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.

An easier way to manage your Ontario 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 6/13
Sat 6/20
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States