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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 6/7. 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
May 7 — May 141
From?
To?
Tue 5/7
Tue 5/14
1 adult, Economy
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The best prices from Ontario to Milwaukee-Mitchell are usually found in September or October, booked 9 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 2, 2024.

Popular in

February

Cheapest in

September

Round-trip from

$263

One-way from

$227
High demand for flights, 23% potential price rise
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Best time to find cheap flights, 56% potential price drop
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From Ontario to Milwaukee-Mitchell
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One-way flight from Ontario to Milwaukee-Mitchell
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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 56% 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 22 days before your planned departure. Booking around this time can save you about 104% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $417 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $634.

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

Due to multiple factors, expect to potentially pay more when booking in April. For low rates, February can be a great choice for travel to Milwaukee. Flights to Milwaukee from Ontario in February are about $402 on average during February, but can be found for as low as $93.

When is the cheapest time to fly from Ontario to Milwaukee (ONT - 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 42% 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 2,864,334 searches. Data last updated May 2, 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.
Thu 8/151:10 pmONT - MKE
1 stop27h 35mFrontier
Sat 8/179:36 amMKE - ONT
1 stop16h 08mFrontier
Deal found 5/2$154
Thu 5/98:07 pmONT - MKE
1 stop19h 51mFrontier
Mon 5/139:26 amMKE - ONT
1 stop16h 33mFrontier
Deal found 5/2$157
Tue 5/1412:59 amONT - MKE
1 stop7h 57mFrontier
Fri 5/177:52 pmMKE - ONT
1 stop6h 07mFrontier
Deal found 5/1$159
Thu 5/912:56 amONT - MKE
1 stop12h 39mFrontier
Fri 5/177:52 pmMKE - ONT
1 stop6h 07mFrontier
Deal found 5/2$162
Thu 5/3012:59 amONT - MKE
1 stop15h 53mFrontier
Wed 6/59:34 amMKE - ONT
1 stop16h 15mFrontier
Deal found 5/1$166
Tue 5/1412:59 amONT - MKE
1 stop7h 57mFrontier
Sat 5/189:25 amMKE - ONT
1 stop16h 34mFrontier
Deal found 5/1$168
Tue 5/2812:59 amONT - MKE
1 stop5h 45mFrontier
Mon 6/39:34 amMKE - ONT
1 stop16h 25mFrontier
Deal found 5/1$182
Sun 5/1912:59 amONT - MKE
1 stop5h 45mFrontier
Wed 5/229:34 amMKE - ONT
1 stop6h 00mFrontier
Deal found 5/1$184
Fri 5/1712:59 amONT - MKE
1 stop5h 26mFrontier
Sat 5/259:34 amMKE - ONT
1 stop16h 25mFrontier
Deal found 5/1$198

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 2,864,334 searches. Data last updated May 2, 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.
Fri 5/317:40 pmONT - MKE
1 stop16h 09mAmerican Airlines
Wed 6/512:21 pmMKE - ONT
2 stops11h 19mAmerican Airlines
Deal found 5/1$399
Fri 5/3112:53 pmONT - MKE
2 stops8h 32mAmerican Airlines
Wed 6/512:21 pmMKE - ONT
2 stops11h 19mAmerican Airlines
Deal found 5/1$438
Thu 8/1510:35 pmONT - MKE
1 stop9h 17mAmerican Airlines
Sun 8/182:42 pmMKE - ONT
1 stop5h 45mAmerican Airlines
Deal found 5/1$480
Tue 7/3011:59 pmONT - MKE
1 stop9h 31mAmerican Airlines
Sun 8/46:27 amMKE - ONT
1 stop7h 24mAmerican Airlines
Deal found 5/2$482
Tue 7/22:44 pmONT - MKE
1 stop6h 54mAmerican Airlines
Sun 7/76:27 amMKE - ONT
1 stop7h 24mAmerican Airlines
Deal found 4/30$486
Tue 7/302:47 pmONT - MKE
1 stop6h 53mAmerican Airlines
Sun 8/46:27 amMKE - ONT
2 stops11h 21mAmerican Airlines
Deal found 5/2$572
Thu 5/96:45 amONT - MKE
2 stops9h 00mAmerican Airlines
Thu 5/168:09 amMKE - ONT
2 stops12h 39mAmerican Airlines
Deal found 5/2$628

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 2,864,334 searches. Prices were last updated on May 2, 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.
Fri 5/3112:59 amONT - MKE
1 stop5h 35mFrontier
Wed 6/59:34 amMKE - ONT
1 stop16h 15mFrontier
Deal found 5/2$138
Fri 5/3112:59 amONT - MKE
1 stop5h 35mFrontier
Sat 6/89:29 amMKE - ONT
1 stop16h 28mFrontier
Deal found 5/2$146
Thu 5/98:07 pmONT - MKE
1 stop19h 51mFrontier
Mon 5/139:26 amMKE - ONT
1 stop16h 33mFrontier
Deal found 5/2$157
Tue 5/1412:59 amONT - MKE
1 stop7h 57mFrontier
Fri 5/177:52 pmMKE - ONT
1 stop6h 07mFrontier
Deal found 5/1$159
Thu 5/912:56 amONT - MKE
1 stop12h 39mFrontier
Fri 5/177:52 pmMKE - ONT
1 stop6h 07mFrontier
Deal found 5/2$162
Thu 5/3012:59 amONT - MKE
1 stop15h 53mFrontier
Wed 6/59:34 amMKE - ONT
1 stop16h 15mFrontier
Deal found 5/1$166
Tue 5/1412:59 amONT - MKE
1 stop7h 57mFrontier
Sat 5/189:25 amMKE - ONT
1 stop16h 34mFrontier
Deal found 5/1$168
Tue 5/1412:59 amONT - MKE
1 stop7h 57mFrontier
Fri 5/177:52 pmMKE - ONT
1 stop6h 07mFrontier
Deal found 5/2$173
Tue 5/2812:59 amONT - MKE
1 stop5h 45mFrontier
Mon 6/39:34 amMKE - ONT
1 stop16h 25mFrontier
Deal found 5/1$182

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 2,864,334 searches. Data last updated May 2, 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.
Fri 5/3112:59 amONT - MKE
1 stop5h 35mFrontier
Wed 6/59:34 amMKE - ONT
1 stop16h 15mFrontier
Deal found 5/2$138
Fri 5/3112:59 amONT - MKE
1 stop5h 35mFrontier
Sat 6/89:29 amMKE - ONT
1 stop16h 28mFrontier
Deal found 5/2$146
Thu 8/151:10 pmONT - MKE
1 stop27h 35mFrontier
Sat 8/179:36 amMKE - ONT
1 stop16h 08mFrontier
Deal found 5/2$154
Thu 5/98:07 pmONT - MKE
1 stop19h 51mFrontier
Mon 5/139:26 amMKE - ONT
1 stop16h 33mFrontier
Deal found 5/2$157
Tue 5/1412:59 amONT - MKE
1 stop7h 57mFrontier
Fri 5/177:52 pmMKE - ONT
1 stop6h 07mFrontier
Deal found 5/1$159
Thu 5/912:56 amONT - MKE
1 stop12h 39mFrontier
Fri 5/177:52 pmMKE - ONT
1 stop6h 07mFrontier
Deal found 5/2$162
Thu 5/3012:59 amONT - MKE
1 stop15h 53mFrontier
Wed 6/59:34 amMKE - ONT
1 stop16h 15mFrontier
Deal found 5/1$166
Tue 5/1412:59 amONT - MKE
1 stop7h 57mFrontier
Sat 5/189:25 amMKE - ONT
1 stop16h 34mFrontier
Deal found 5/1$168
Tue 5/1412:59 amONT - MKE
1 stop7h 57mFrontier
Fri 5/177:52 pmMKE - ONT
1 stop6h 07mFrontier
Deal found 5/2$173

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 2,864,334 searches. Data last updated May 2, 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 5/98:07 pmONT - MKE
1 stop19h 51mFrontier
Mon 5/139:26 amMKE - ONT
1 stop16h 33mFrontier
Deal found 5/2$157
Thu 5/912:56 amONT - MKE
1 stop12h 39mFrontier
Fri 5/177:52 pmMKE - ONT
1 stop6h 07mFrontier
Deal found 5/2$162
Fri 5/107:16 amONT - MKE
1 stop6h 19mFrontier
Mon 5/1312:48 pmMKE - ONT
1 stop11h 09mFrontier
Deal found 5/2$254
Fri 5/107:16 amONT - MKE
1 stop6h 19mFrontier
Fri 5/177:52 pmMKE - ONT
1 stop6h 07mFrontier
Deal found 5/2$258
Tue 5/712:59 amONT - MKE
1 stop7h 57mFrontier
Mon 5/1312:48 pmMKE - ONT
1 stop11h 09mFrontier
Deal found 5/2$264
Tue 5/712:59 amONT - MKE
1 stop7h 57mFrontier
Fri 5/177:52 pmMKE - ONT
1 stop6h 07mFrontier
Deal found 5/2$268
Sat 5/111:20 pmONT - MKE
1 stop6h 38mDelta
Wed 5/156:20 amMKE - ONT
1 stop7h 53mDelta
Deal found 5/1$520
Wed 5/811:40 pmONT - MKE
1 stop9h 10mJetBlue
Thu 6/612:08 pmMKE - ONT
1 stop12h 01mJetBlue
Deal found 4/30$527
Wed 5/811:40 pmONT - MKE
1 stop9h 10mJetBlue
Tue 5/1411:35 amMKE - ONT
1 stop12h 34mJetBlue
Deal found 5/1$542

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 2,864,334 searches. Data last updated May 2, 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.
Fri 6/712:48 amONT - MKE
1 stop5h 50mFrontier
Deal found 5/2$70
Tue 5/712:59 amONT - MKE
1 stop7h 57mFrontier
Deal found 5/1$78
Sun 5/1210:58 pmONT - MKE
1 stop10h 50mFrontier
Deal found 5/1$79
Thu 5/910:58 pmONT - MKE
1 stop17h 00mFrontier
Deal found 5/1$84
Fri 5/1712:59 amONT - MKE
1 stop5h 26mFrontier
Deal found 5/1$85
Sun 6/2312:59 amONT - MKE
1 stop5h 31mFrontier
Deal found 4/30$99
Tue 6/188:29 amONT - MKE
1 stop22h 15mFrontier
Deal found 5/1$100
Fri 5/318:54 pmONT - MKE
1 stop9h 40mFrontier
Deal found 5/2$104
Thu 5/3012:59 amONT - MKE
1 stop15h 53mFrontier
Deal found 5/2$108

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 2,864,334 searches. Data last updated May 2, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$154 - $458

Route

Depart

Return

Price

OntarioMilwaukee-Mitchell

ONT - MKE

ONTMKE

Ontario

Thu 8/15

1 stop27h 35m

Milwaukee-Mitchell

Sat 8/17

1 stop16h 08m

$154

OntarioMilwaukee-Mitchell

ONT - MKE

ONTMKE

Ontario

Tue 5/14

1 stop7h 57m

Milwaukee-Mitchell

Fri 5/17

1 stop6h 07m

$159

OntarioMilwaukee-Mitchell

ONT - MKE

ONTMKE

Ontario

Thu 5/30

1 stop15h 53m

Milwaukee-Mitchell

Wed 6/5

1 stop16h 15m

$166

OntarioMilwaukee-Mitchell

ONT - MKE

ONTMKE

Ontario

Tue 5/14

1 stop7h 57m

Milwaukee-Mitchell

Sat 5/18

1 stop16h 34m

$168

OntarioMilwaukee-Mitchell

ONT - MKE

ONTMKE

Ontario

Wed 5/29

1 stop11h 59m

Milwaukee-Mitchell

Mon 6/3

1 stop8h 11m

$391

OntarioMilwaukee-Mitchell

ONT - MKE

ONTMKE

Ontario

Fri 5/31

1 stop16h 09m

Milwaukee-Mitchell

Wed 6/5

2 stops11h 19m

$399

OntarioMilwaukee-Mitchell

ONT - MKE

ONTMKE

Ontario

Wed 5/29

2 stops13h 26m

Milwaukee-Mitchell

Mon 6/3

2 stops8h 10m

$425

OntarioMilwaukee-Mitchell

ONT - MKE

ONTMKE

Ontario

Wed 5/29

1 stop15h 24m

Milwaukee-Mitchell

Mon 6/3

1 stop10h 26m

$435

OntarioMilwaukee-Mitchell

ONT - MKE

ONTMKE

Ontario

Fri 6/7

1 stop5h 50m

Milwaukee-Mitchell

Wed 6/12

1 stop5h 35m

$458

Flights are sorted by cheapest first

Deals found on 5/2

When is the best time to 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 January 28, 2024.
The best time to book flights from Ontario to Milwaukee is 9 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

When is the cheapest time 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 April 28, 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. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
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Average price of flights to Milwaukee by month

Plan your trip from Ontario to Milwaukee by taking into account the cheapest months to travel. The average price of a one-way flight from Ontario to Milwaukee is currently $90 while a round-trip flight costs $306. Price data was last updated on April 28, 2024.

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 $379). 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.

January

$270

February

$277

March

$285

April

$306

May

$353

June

$379

July

$371

August

$341

September

$316

October

$296

November

$296

December

$263

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 2, 2024.
See what other customers who have flown with Frontier, American Airlines and Delta 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
6,121 reviews
Check prices

Boarding

8.3

Entertainment

7.8

Food

7.3

Comfort

8.1

Crew

8.7

Overall

8.2

Reviews

1 / 10

I was very relaxed and calm so I took a brief nap. The flight was pretty smooth.

Southwest
8.2
Very good
6,121 reviews
Southwest
8.2
Very good
6,121 reviews
Check prices

Boarding

8.3

Entertainment

7.8

Food

7.3

Comfort

8.1

Crew

8.7

Overall

8.2

Reviews

1 / 10

I was very relaxed and calm so I took a brief nap. The flight was pretty smooth.

Alaska Airlines
8.1
Very good
9,118 reviews
Southwest
8.2
Very good
6,121 reviews
Check prices

Boarding

8.3

Entertainment

7.8

Food

7.3

Comfort

8.1

Crew

8.7

Overall

8.2

Reviews

1 / 10

I was very relaxed and calm so I took a brief nap. The flight was pretty smooth.

Delta
8.1
Very good
10,861 reviews
Southwest
8.2
Very good
6,121 reviews
Check prices

Boarding

8.3

Entertainment

7.8

Food

7.3

Comfort

8.1

Crew

8.7

Overall

8.2

Reviews

1 / 10

I was very relaxed and calm so I took a brief nap. The flight was pretty smooth.

JetBlue
7.6
Good
4,558 reviews
Southwest
8.2
Very good
6,121 reviews
Check prices

Boarding

8.3

Entertainment

7.8

Food

7.3

Comfort

8.1

Crew

8.7

Overall

8.2

Reviews

1 / 10

I was very relaxed and calm so I took a brief nap. The flight was pretty smooth.

United Airlines
7.4
Good
11,142 reviews
Southwest
8.2
Very good
6,121 reviews
Check prices

Boarding

8.3

Entertainment

7.8

Food

7.3

Comfort

8.1

Crew

8.7

Overall

8.2

Reviews

1 / 10

I was very relaxed and calm so I took a brief nap. The flight was pretty smooth.

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 $154, but on average you can expect to pay $210.

  • 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 $154, was found to be the cheapest airline from Ontario to Milwaukee.. Frontier is currently priced 70% 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 $196 and $217 on Delta and Alaska Airlines, respectively.

  • 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 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 5/2.

See more FAQs

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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 2,864,334 searches. Data last updated May 2, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$131Average$205FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$185Average$303FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
DeltaCheapest$278Average$569FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$357Average$559FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$385Average$591FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
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New York to Mexico City flights
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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.
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Business Class
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Economy Class

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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.

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