$55+ Cheap flights from Ontario to Milwaukee (ONT - MKE)
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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Ontario to Milwaukee with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 January 23, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $120 (CheapOair) |
One-way from | $55 (Frontier) |
Popular in | July |
Cheapest in | November |
Average price | $351 |
Find flight deals from Ontario to Milwaukee
Cheapest flights from Ontario to MilwaukeeExplore the most affordable flight options available from Ontario to Milwaukee. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 23, 2025.
Explore the most affordable flight options available from Ontario to Milwaukee. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 23, 2025.
This CheapOair deal was found by Cheapflights users on 1/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Orbitz deal was found by Cheapflights users on 1/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Alaska Airlines deal was found by Cheapflights users on 1/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 1/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 1/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Southwest deal was found by Cheapflights users on 1/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
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 2,558,603 searches. Data last updated January 23, 2025.
Fly from
Fly to
Route
Depart
Return
Price
OntarioMilwaukee
ONT - MKE
ONTMKE
Ontario
Wed 2/26
12:59 am-9:32 am
1 stop6h 33m
Milwaukee-Mitchell
Tue 3/4
10:32 am-11:59 pm
1 stop15h 27m
OntarioMilwaukee
ONT - MKE
ONTMKE
Ontario
Wed 2/26
12:59 am-9:32 am
1 stop6h 33m
Milwaukee-Mitchell
Mon 3/3
2:44 pm-11:24 pm
1 stop10h 40m
OntarioMilwaukee
ONT - MKE
ONTMKE
Ontario
Wed 2/26
6:00 am-1:48 pm
1 stop29h 48m
Milwaukee-Mitchell
Mon 3/3
2:44 pm-11:24 pm
1 stop10h 40m
OntarioMilwaukee
ONT - MKE
ONTMKE
Ontario
Thu 2/13
1:21 pm-9:34 pm
1 stop6h 13m
Milwaukee-Mitchell
Sat 2/15
3:00 pm-10:52 pm
1 stop9h 52m
OntarioMilwaukee
ONT - MKE
ONTMKE
Ontario
Fri 3/21
6:10 am-2:02 pm
1 stop5h 52m
Milwaukee-Mitchell
Mon 3/24
5:31 pm-10:00 pm
1 stop6h 29m
OntarioMilwaukee
ONT - MKE
ONTMKE
Ontario
Mon 3/3
5:05 am-1:17 pm
1 stop6h 12m
Milwaukee-Mitchell
Mon 4/7
3:11 pm-8:42 pm
1 stop7h 31m
OntarioMilwaukee
ONT - MKE
ONTMKE
Ontario
Fri 3/21
5:20 pm-12:45 am
1 stop5h 25m
Milwaukee-Mitchell
Mon 3/24
4:25 pm-11:15 pm
2 stops8h 50m
OntarioMilwaukee
ONT - MKE
ONTMKE
Ontario
Wed 2/19
12:59 am-9:32 am
1 stop6h 33m
OntarioMilwaukee
ONT - MKE
ONTMKE
Ontario
Wed 2/19
1:21 pm-9:34 pm
1 stop6h 13m
OntarioMilwaukee
ONT - MKE
ONTMKE
Ontario
Sat 4/12
5:00 am-7:07 pm
2 stops12h 07m
Compare providers for flights from Ontario to Milwaukee
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Milwaukee in January.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*2 stars |
- Most accurate provider: When it comes to deals on Ontario-Milwaukee flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Milwaukee flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Milwaukee flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-Milwaukee flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Milwaukee flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
Travel insights for flights from Ontario to Milwaukee
Get recent, data-driven insights about flights from Ontario to Milwaukee including ideal travel times, pricing trends, and more.
What is the cheapest month to book a flight from Ontario to Milwaukee?
Currently, February is the cheapest month in which you can book a flight from Ontario to Milwaukee (average of $280). Flying from Ontario to Milwaukee in June is currently the most expensive (average of $376). 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.
What is the cheapest time of day to fly from ONT to MKE?
Find hourly flight availability from Ontario to Milwaukee. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 23, 2025.
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 33% on airfare.
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 December 16, 2024.
Travelers seeking maximum savings on their Ontario to Milwaukee flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Rainfall in Milwaukee by month
Plan your trip to Milwaukee by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Milwaukee ranges from 1.4 - 4.0 inches per month. June is typically the wettest month, when rainfall can reach 4.0 in. January is typically the driest time to visit Milwaukee when rainfall is around 1.4 in.
Temperature in Milwaukee by month
Plan your trip to Milwaukee by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Milwaukee, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 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 January 23, 2025.
See what other customers who have flown with Alaska Airlines, United 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.
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My original flight was delayed so they found this flight for me so I could arrive at a reasonable time
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My original flight was delayed so they found this flight for me so I could arrive at a reasonable time
Boarding
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My original flight was delayed so they found this flight for me so I could arrive at a reasonable time
Boarding
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Reviews
My original flight was delayed so they found this flight for me so I could arrive at a reasonable time
Boarding
Entertainment
Comfort
Overall
Food
Crew
Reviews
My original flight was delayed so they found this flight for me so I could arrive at a reasonable time
Boarding
Entertainment
Comfort
Overall
Food
Crew
Reviews
My original flight was delayed so they found this flight for me so I could arrive at a reasonable time