HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Ontario to Milwaukee (ONT - MKE) from $70

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 6/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ONT — MKE
Jun 4 — Jun 111
From?
To?
Tue 6/4
Tue 6/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

The best prices from Ontario to Milwaukee-Mitchell are usually found in September or October, booked 47 days in advance, depart on a Saturday or Tuesday and return on a Tuesday

Cheap flight deals from Ontario to Milwaukee

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Milwaukee (MKE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 30, 2024.

Popular in

June

Cheapest in

September

Round-trip from

$263

One-way from

$224
High demand for flights, 30% potential price rise
Search Deals
Best time to find cheap flights, 42% potential price drop
Search Deals
From Ontario to Milwaukee-Mitchell
Search Deals
One-way flight from Ontario to Milwaukee-Mitchell
Search Deals

What is the cheapest day to fly round-trip from Ontario to Milwaukee?

Travelers have found that booking a Friday departure is the best way to save up to 70% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

How far in advance should I book a flight from Ontario to Milwaukee?

To save on the cost of your flight from Ontario to Milwaukee, book at least 43 days before your planned departure. Booking around this time can save you about 147% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $295 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $764.

What is the cheapest month to fly from Ontario to Milwaukee?

Due to multiple factors, expect to potentially pay more when booking in March. For low rates, October can be a great choice for travel to Milwaukee. Flights to Milwaukee from Ontario in October are about $398 on average during October, but can be found for as low as $123.

What is the cheapest time of day to fly from ONT to MKE?

One of the essential ways to save on airfare from Ontario to Milwaukee is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 47% on airfare.

Cheap Frontier flights from Ontario to Milwaukee

Explore cheap flight options specifically provided by Frontier for the route between Ontario and Milwaukee. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Peruse some of the lowest-priced Frontier flights we've found from Ontario to Milwaukee. Be sure to come back soon if the deals available don't appeal to you at this time.
Tue 6/1112:59 amONT - MKE
1 stop5h 44mFrontier
Sat 6/159:29 amMKE - ONT
1 stop16h 20mFrontier
Deal found 5/29$143
Thu 6/611:59 amONT - MKE
1 stop18h 30mFrontier
Sat 6/89:29 amMKE - ONT
1 stop16h 28mFrontier
Deal found 5/29$193
Fri 8/212:39 amONT - MKE
1 stop7h 44mFrontier
Wed 8/149:36 amMKE - ONT
1 stop12h 01mFrontier
Deal found 5/29$194
Fri 6/1412:44 amONT - MKE
1 stop5h 54mFrontier
Mon 6/1711:23 amMKE - ONT
1 stop14h 36mFrontier
Deal found 5/29$195
Fri 8/212:39 amONT - MKE
1 stop7h 44mFrontier
Sat 8/179:36 amMKE - ONT
1 stop16h 08mFrontier
Deal found 5/29$196
Tue 8/201:32 pmONT - MKE
1 stop17h 14mFrontier
Sat 8/249:36 amMKE - ONT
1 stop16h 08mFrontier
Deal found 5/29$199
Thu 6/612:44 amONT - MKE
1 stop5h 45mFrontier
Mon 6/1011:29 amMKE - ONT
1 stop14h 30mFrontier
Deal found 5/30$202
Fri 6/710:23 pmONT - MKE
1 stop8h 15mFrontier
Mon 6/1011:29 amMKE - ONT
1 stop21h 58mFrontier
Deal found 5/30$204
Sun 8/1812:49 amONT - MKE
1 stop5h 57mFrontier
Sat 8/249:36 amMKE - ONT
1 stop16h 08mFrontier
Deal found 5/28$206

Cheap American Airlines flights from Ontario to Milwaukee

Explore cheap flight options specifically provided by American Airlines for the route between Ontario and Milwaukee. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Some of the best deals we've found on American Airlines flights traveling from Ontario to Milwaukee. Make sure to examine the flight information before completing your reservation.
Wed 8/712:40 pmONT - MKE
1 stop6h 42mAmerican Airlines
Tue 8/1310:37 amMKE - ONT
2 stops9h 47mAmerican Airlines
Deal found 5/28$402
Sat 8/312:43 pmONT - MKE
1 stop8h 57mAmerican Airlines
Fri 8/162:42 pmMKE - ONT
1 stop8h 58mAmerican Airlines
Deal found 5/29$411
Sat 8/36:15 amONT - MKE
2 stops9h 30mAmerican Airlines
Fri 8/162:42 pmMKE - ONT
1 stop8h 58mAmerican Airlines
Deal found 5/29$416
Thu 8/89:35 amONT - MKE
2 stops9h 47mAmerican Airlines
Wed 8/1410:37 amMKE - ONT
2 stops9h 50mAmerican Airlines
Deal found 5/28$427
Sat 8/2410:30 pmONT - MKE
1 stop9h 21mAmerican Airlines
Sat 8/316:42 amMKE - ONT
1 stop7h 05mAmerican Airlines
Deal found 5/29$435
Sat 8/36:15 amONT - MKE
2 stops9h 30mAmerican Airlines
Fri 8/1610:37 amMKE - ONT
2 stops9h 50mAmerican Airlines
Deal found 5/29$446
Fri 7/266:15 amONT - MKE
1 stop5h 45mAmerican Airlines
Tue 7/305:30 pmMKE - ONT
1 stop8h 19mAmerican Airlines
Deal found 5/29$466
Sun 8/46:15 amONT - MKE
1 stop5h 45mAmerican Airlines
Sat 8/1710:57 amMKE - ONT
2 stops9h 27mAmerican Airlines
Deal found 5/29$480
Sat 6/152:44 pmONT - MKE
1 stop6h 54mAmerican Airlines
Mon 6/178:00 amMKE - ONT
2 stops9h 51mAmerican Airlines
Deal found 5/29$523

Cheap Ontario to Milwaukee flights in May & June 2024

Find cheap flight options from Ontario to Milwaukee specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Prices were last updated on May 30, 2024.
Listed are some of the best fares we've found on flights departing from Ontario to Milwaukee in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Tue 6/1112:59 amONT - MKE
1 stop5h 44mFrontier
Sat 6/159:29 amMKE - ONT
1 stop16h 20mFrontier
Deal found 5/29$143
Thu 6/611:59 amONT - MKE
1 stop18h 30mFrontier
Sat 6/89:29 amMKE - ONT
1 stop16h 28mFrontier
Deal found 5/29$193
Fri 6/1412:44 amONT - MKE
1 stop5h 54mFrontier
Mon 6/1711:23 amMKE - ONT
1 stop14h 36mFrontier
Deal found 5/29$195
Tue 6/412:59 amONT - MKE
1 stop5h 44mFrontier
Wed 6/129:34 amMKE - ONT
1 stop16h 15mFrontier
Deal found 5/29$199
Thu 6/612:44 amONT - MKE
1 stop5h 45mFrontier
Mon 6/1011:29 amMKE - ONT
1 stop14h 30mFrontier
Deal found 5/30$202
Fri 6/710:23 pmONT - MKE
1 stop8h 15mFrontier
Mon 6/1011:29 amMKE - ONT
1 stop21h 58mFrontier
Deal found 5/30$204
Tue 6/1812:59 amONT - MKE
1 stop5h 44mFrontier
Wed 6/269:34 amMKE - ONT
1 stop16h 15mFrontier
Deal found 5/30$228
Tue 6/118:29 amONT - MKE
1 stop22h 14mFrontier
Sat 6/159:29 amMKE - ONT
1 stop16h 20mFrontier
Deal found 5/29$233
Thu 6/612:44 amONT - MKE
1 stop5h 45mFrontier
Mon 6/1711:23 amMKE - ONT
1 stop14h 36mFrontier
Deal found 5/29$234

Ontario to Milwaukee 2024 flight deals

Discover exclusive flight deals for travel between Ontario and Milwaukee in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Listed are some of the best fares we've found on flights departing from Ontario to Milwaukee in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Tue 6/1112:59 amONT - MKE
1 stop5h 44mFrontier
Sat 6/159:29 amMKE - ONT
1 stop16h 20mFrontier
Deal found 5/29$143
Thu 6/611:59 amONT - MKE
1 stop18h 30mFrontier
Sat 6/89:29 amMKE - ONT
1 stop16h 28mFrontier
Deal found 5/29$193
Fri 8/212:39 amONT - MKE
1 stop7h 44mFrontier
Wed 8/149:36 amMKE - ONT
1 stop12h 01mFrontier
Deal found 5/29$194
Fri 6/1412:44 amONT - MKE
1 stop5h 54mFrontier
Mon 6/1711:23 amMKE - ONT
1 stop14h 36mFrontier
Deal found 5/29$195
Fri 8/212:39 amONT - MKE
1 stop7h 44mFrontier
Sat 8/179:36 amMKE - ONT
1 stop16h 08mFrontier
Deal found 5/29$196
Tue 6/412:59 amONT - MKE
1 stop5h 44mFrontier
Wed 6/129:34 amMKE - ONT
1 stop16h 15mFrontier
Deal found 5/29$199
Thu 6/612:44 amONT - MKE
1 stop5h 45mFrontier
Mon 6/1011:29 amMKE - ONT
1 stop14h 30mFrontier
Deal found 5/30$202
Fri 6/710:23 pmONT - MKE
1 stop8h 15mFrontier
Mon 6/1011:29 amMKE - ONT
1 stop21h 58mFrontier
Deal found 5/30$204
Sun 8/1812:49 amONT - MKE
1 stop5h 57mFrontier
Sat 8/249:36 amMKE - ONT
1 stop16h 08mFrontier
Deal found 5/28$206

Ontario to Milwaukee flights leaving soon

Find last-minute flight options from Ontario to Milwaukee for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Consider one of these great deals we found on last-minute flights from Ontario to Milwaukee. Users should examine the flight details to ensure there are no surprises.
Thu 6/611:59 amONT - MKE
1 stop18h 30mFrontier
Sat 6/89:29 amMKE - ONT
1 stop16h 28mFrontier
Deal found 5/29$193
Tue 6/412:59 amONT - MKE
1 stop5h 44mFrontier
Wed 6/129:34 amMKE - ONT
1 stop16h 15mFrontier
Deal found 5/29$199
Thu 6/612:44 amONT - MKE
1 stop5h 45mFrontier
Mon 6/1011:29 amMKE - ONT
1 stop14h 30mFrontier
Deal found 5/30$202
Fri 6/710:23 pmONT - MKE
1 stop8h 15mFrontier
Mon 6/1011:29 amMKE - ONT
1 stop21h 58mFrontier
Deal found 5/30$204
Thu 6/612:44 amONT - MKE
1 stop5h 45mFrontier
Mon 6/1711:23 amMKE - ONT
1 stop14h 36mFrontier
Deal found 5/29$234
Sun 6/912:59 amONT - MKE
1 stop7h 24mFrontier
Fri 6/149:20 amMKE - ONT
1 stop14h 03mFrontier
Deal found 5/30$252
Fri 6/710:23 pmONT - MKE
1 stop8h 15mFrontier
Mon 6/1011:29 amMKE - ONT
1 stop11h 06mFrontier
Deal found 5/29$278
Thu 6/612:44 amONT - MKE
1 stop5h 45mFrontier
Mon 6/1011:29 amMKE - ONT
1 stop11h 06mFrontier
Deal found 5/29$298
Fri 6/712:48 amONT - MKE
1 stop5h 50mMultiple Airlines
Tue 6/182:21 pmMKE - ONT
1 stop11h 38mMultiple Airlines
Deal found 5/29$362

One-way flights to Milwaukee from Ontario

Search for one-way flight options from Ontario to Milwaukee. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Users in need of a one-way flight from Ontario to Milwaukee can choose from these deals. Those seeking round-trip flights from Ontario to Milwaukee should utilize the search form at the the top of the page.
Tue 6/1112:59 amONT - MKE
1 stop5h 44mFrontier
Deal found 5/30$70
Fri 6/1412:44 amONT - MKE
1 stop5h 54mFrontier
Deal found 5/29$74
Tue 7/2312:59 amONT - MKE
1 stop5h 47mFrontier
Deal found 5/29$104
Tue 7/168:27 amONT - MKE
1 stop22h 19mFrontier
Deal found 5/28$110
Fri 7/510:03 pmONT - MKE
1 stop10h 00mFrontier
Deal found 5/30$114
Fri 6/2110:23 pmONT - MKE
1 stop8h 15mFrontier
Deal found 5/29$119
Thu 6/1312:59 amONT - MKE
1 stop5h 25mFrontier
Deal found 5/29$123
Thu 8/151:10 pmONT - MKE
1 stop27h 35mFrontier
Deal found 5/29$125
Sun 7/2112:59 amONT - MKE
1 stop17h 25mFrontier
Deal found 5/29$128

Find flights from Ontario to Milwaukee within your budget

Customize your flight search to find flights from Ontario to Milwaukee 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 2,784,634 searches. Data last updated May 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$143 - $476

Route

Depart

Return

Price

OntarioMilwaukee-Mitchell

ONT - MKE

ONTMKE

Ontario

Tue 6/11

1 stop5h 44m

Milwaukee-Mitchell

Sat 6/15

1 stop16h 20m

$143

OntarioMilwaukee-Mitchell

ONT - MKE

ONTMKE

Ontario

Fri 8/2

1 stop7h 44m

Milwaukee-Mitchell

Wed 8/14

1 stop12h 01m

$194

OntarioMilwaukee-Mitchell

ONT - MKE

ONTMKE

Ontario

Fri 6/14

1 stop5h 54m

Milwaukee-Mitchell

Mon 6/17

1 stop14h 36m

$195

OntarioMilwaukee-Mitchell

ONT - MKE

ONTMKE

Ontario

Fri 8/2

1 stop7h 44m

Milwaukee-Mitchell

Sat 8/17

1 stop16h 08m

$196

OntarioMilwaukee-Mitchell

ONT - MKE

ONTMKE

Ontario

Fri 10/25

1 stop5h 43m

Milwaukee-Mitchell

Sun 10/27

1 stop7h 22m

$376

OntarioMilwaukee-Mitchell

ONT - MKE

ONTMKE

Ontario

Wed 8/7

1 stop6h 42m

Milwaukee-Mitchell

Tue 8/13

2 stops9h 47m

$402

OntarioMilwaukee-Mitchell

ONT - MKE

ONTMKE

Ontario

Fri 6/14

1 stop5h 54m

Milwaukee-Mitchell

Tue 6/25

1 stop13h 40m

$407

OntarioMilwaukee-Mitchell

ONT - MKE

ONTMKE

Ontario

Wed 8/14

1 stop29h 35m

Milwaukee-Mitchell

Tue 8/20

1 stop17h 20m

$432

OntarioMilwaukee-Mitchell

ONT - MKE

ONTMKE

Ontario

Wed 8/7

1 stop14h 18m

Milwaukee-Mitchell

Wed 8/14

1 stop7h 46m

$476

Flights are sorted by cheapest first

Deals found on 5/29

How far ahead should I book a flight from Ontario to Milwaukee?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Milwaukee. Price data was last updated on May 24, 2024.
The best time to book flights from Ontario to Milwaukee is 46 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

What is the cheapest day to fly from Ontario to Milwaukee?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Milwaukee. Price data was last updated on May 26, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Ontario to Milwaukee flight should consider departing on Saturday evenings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Ontario to Milwaukee

Have a flexible travel schedule? Discover the best time to fly to Milwaukee from Ontario 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.

Temperature and rainfall in Milwaukee by month

Plan your trip to Milwaukee by taking into account the average temperature and rainfall totals by month.

MKE

Temperature

21.2 - 73.4 °F

Reviews of airlines servicing Milwaukee

Get insights into the airlines that provide service to Milwaukee. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Milwaukee. Reviews last updated May 30, 2024.
See what other customers who have flown with Frontier, American Airlines and United Airlines from Ontario to Milwaukee have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.2
Very good
5,956 reviews
Check prices

Food

7.3

Entertainment

7.8

Overall

8.2

Boarding

8.3

Comfort

8.1

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Southwest
8.2
Very good
5,956 reviews
Southwest
8.2
Very good
5,956 reviews
Check prices

Food

7.3

Entertainment

7.8

Overall

8.2

Boarding

8.3

Comfort

8.1

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Alaska Airlines
8.1
Very good
9,192 reviews
Southwest
8.2
Very good
5,956 reviews
Check prices

Food

7.3

Entertainment

7.8

Overall

8.2

Boarding

8.3

Comfort

8.1

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Delta
8.0
Very good
10,457 reviews
Southwest
8.2
Very good
5,956 reviews
Check prices

Food

7.3

Entertainment

7.8

Overall

8.2

Boarding

8.3

Comfort

8.1

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Avianca
7.5
Good
3,651 reviews
Southwest
8.2
Very good
5,956 reviews
Check prices

Food

7.3

Entertainment

7.8

Overall

8.2

Boarding

8.3

Comfort

8.1

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

United Airlines
7.4
Good
10,777 reviews
Southwest
8.2
Very good
5,956 reviews
Check prices

Food

7.3

Entertainment

7.8

Overall

8.2

Boarding

8.3

Comfort

8.1

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Related info for your journey

Find useful and relevant information for your journey from Ontario to Milwaukee. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Ontario to Milwaukee for under $200 on Cheapflights?

    Yes, there are multiple flights from Ontario to Milwaukee for under $200. The cheapest flight booked recently is on Frontier for just $143, but on average you can expect to pay $215.

  • Are there last-minute flights available from Ontario to Milwaukee for under $200?

    There are currently 20+ open flights from Ontario to Milwaukee within the next 7 days for less than $200.

  • What is the cheapest airline to fly from Ontario to Milwaukee round-trip?

    Frontier, at $143, was found to be the cheapest airline from Ontario to Milwaukee.. Frontier is currently priced 69% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Ontario to Milwaukee one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $70. Users have also found prices from $188 and $228 on Delta and American Airlines, respectively.

  • What does ONT to MKE mean?

    Ontario Airport is ONT and Milwaukee-Mitchell Airport is MKE. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

  • Can I find deals for flights from Ontario to Milwaukee that include extra baggage allowance?

    The amount of baggage you can bring on your Ontario to Milwaukee flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Ontario to Milwaukee with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ontario to Milwaukee flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Ontario to Milwaukee that include hotel bookings?

    Yes. In addition to deals on Ontario to Milwaukee flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Milwaukee?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Milwaukee.

  • Can I find deals for business class flights from Ontario to Milwaukee?

    Yes. Cheapflights offers flight deals from Ontario to Milwaukee by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Ontario to Milwaukee that allow pets onboard?

    Many airlines flying from Ontario to Milwaukee offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Ontario to Milwaukee?

    Yes, you can often find last-minute deals on Ontario to Milwaukee flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Ontario to Milwaukee flight deals updated?

    The Ontario to Milwaukee flight deals you see on this page were last updated on 5/30.

  • What are the most popular airlines that fly from Ontario to Milwaukee?

    American Airlines, Delta and Frontier are the most popular airlines when flying from Ontario to Milwaukee.

  • What is the cheapest month to book a flight from Ontario to Milwaukee?

    Currently, December is the cheapest month in which you can book a flight from Ontario to Milwaukee (average of $263). Flying from Ontario to Milwaukee in June is currently the most expensive (average of $375). 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

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 Ontario to Milwaukee
See prices for flight routes from nearby airports that may be better suited for you.

Los Angeles to O'Hare Intl flights
San Francisco to O'Hare Intl flights
Ontario to O'Hare Intl flights
Burbank to O'Hare Intl flights
Los Angeles to Minneapolis flights
San Francisco to Minneapolis flights
Santa Ana to O'Hare Intl flights
Oakland to O'Hare Intl flights
San Diego to O'Hare Intl flights
Las Vegas to O'Hare Intl flights
San Jose to O'Hare Intl flights
Ontario to Minneapolis flights
San Diego to Minneapolis flights
Santa Ana to Minneapolis flights
Sacramento to O'Hare Intl flights
Sacramento to Minneapolis flights
Los Angeles to Milwaukee flights
San Jose to Minneapolis flights
San Francisco to Milwaukee flights
Las Vegas to Minneapolis flights
Burbank to Minneapolis flights
Fresno to O'Hare Intl flights
Oakland to Minneapolis flights
San Francisco to Madison flights
Long Beach to O'Hare Intl flights
Palm Springs to O'Hare Intl flights
Reno to O'Hare Intl flights
Reno to Minneapolis flights
Burbank to Milwaukee flights
Santa Ana to Milwaukee flights
Oakland to Milwaukee flights
Los Angeles to Green Bay flights
Los Angeles to Appleton flights
Fresno to Minneapolis flights
Santa Ana to Madison flights
Palm Springs to Minneapolis flights
San Francisco to Green Bay flights
San Jose to Milwaukee flights
San Diego to Appleton flights
Los Angeles to Madison flights
Medford to Minneapolis flights
San Diego to Milwaukee flights
Las Vegas to Madison flights
Ontario to Madison flights
Burbank to Madison flights
Santa Barbara to O'Hare Intl flights
Sacramento to Milwaukee flights
San Diego to Madison flights
Sacramento to Madison flights

Top 5 airlines flying from Ontario to Milwaukee

Discover the top 5 airlines that operate flights from Ontario to Milwaukee. 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 2,784,634 searches. Data last updated May 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$131Average$205FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$185Average$303FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
DeltaCheapest$280Average$568FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$357Average$527FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$383Average$567FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Dallas to Atlanta flights
Dallas to Cabo San Lucas flights
Boston to Rome flights
Las Vegas to Reno flights
New York to Mexico City flights
USA to Europe flights
Newark Airport to Paris flights
New York to Dublin flights
New York to Singapore flights
Salt Lake City to Los Angeles flights
Los Angeles to Cancún flights
Ontario to Luqa flights

Search flights from Ontario to Milwaukee by cabin class

Find flights from Ontario to Milwaukee, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Laayoune Hassan I
Flights to Virac
Flights to Figari-Sud Corse
Flights to Edremit/Korfez
Flights to Rhinelander Oneida County
Flights to Girona Costa Brava
Flights to Brainerd Crow Wing County
Flights to Parikia Paros
Flights to Cortez Montezuma County
Flights to Miyakojima Hirara
Flights to Zadar
Flights to Trapani Birgi
Flights to Provincetown
Flights to Oran Es Senia
Flights to Constanţa Mihail Kogalniceanu
Flights to Vava'u Lupepau'U
Flights to Urumqi
Flights to Hakodate
Flights to Naxos
Flights to Dalaman
Flights to Hyannis Barnstable
Flights to Devils Lake
Flights to Bastia Poretta
Flights to Karpathos

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to Milwaukee?

Cheapflights helps you search for flights from Ontario to Milwaukee via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Milwaukee?

Cheapflights helps you find that perfect flight to Milwaukee from Ontario by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Ontario to Milwaukee with no change fees?

Yes! Cheapflights helps users easily find flights from Ontario to Milwaukee with no change fees.

Can Cheapflights notify me if prices for flights from Ontario to Milwaukee become cheaper?

Yes, Cheapflights offers price alerts on Ontario to Milwaukee flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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.
View all available airlines