Cheap flights from Milwaukee to Ontario (MKE - ONT)

MKE — ONT
Feb 12 — Feb 191

The best prices from Milwaukee-Mitchell to Ontario are usually found in January or November, booked 33 days in advance, depart on a Saturday or Friday and return on a Thursday

How to find the cheapest flight from Milwaukee (MKE) to Ontario (ONT)

All the information you need to plan the best MKE to ONT flight in 2023: compare Milwaukee to Ontario flight prices with the expected peak season, weather and rainfall in Ontario.

MKE - ONT

Price

$201 - $748

ONT

Temperature

53.6 - 78.8 °F

ONT

Rainfall

0.1 - 3.4 inches

Popular inJulyHigh demand for flights, 44% potential price rise
Cheapest inJanuaryBest time to find cheap flights, 52% potential price drop
Average price$314Average for round-trip flights in February 2023
Round-trip from$201From Milwaukee-Mitchell to Ontario

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

Travelers have found that booking a Friday departure is the best way to save up to 101% 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 Milwaukee to Ontario?

To save on the cost of your flight from Milwaukee to Ontario, book at least 61 days before your planned departure. Booking around this time can save you about 46% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $367 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $439.

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

February is one of the best times of the year to fly to Ontario from Milwaukee. Prices for February average $340 per person but you can even find prices for as low as $103. The most expensive prices can be found in the month of July. Opting for a February flight can save you 72% on your journey compared to booking in July

When is the cheapest time to fly from Milwaukee to Ontario (MKE - ONT)?

It’s typically best to fly out from Milwaukee to Ontario in the evening. Doing so could potentially save you 34% on the flight price compared to flying at noon, which is usually more expensive.

Cheap flights from Milwaukee to Ontario in February, March 2023

The best prices found for MKE to ONT flights for February, March

Milwaukee to Ontario 2023 flight deals

Cheap flights to Ontario from Milwaukee found for this year

Cheap Frontier flights from Milwaukee to Ontario

Cheap American Airlines flights from Milwaukee to Ontario

Last minute flights from Milwaukee to Ontario

Late deals on return flights to Ontario from Milwaukee, departing today and this week

One-way flights to Ontario from Milwaukee

The cheapest one-way flights from Milwaukee to Ontario

Reviews of Airlines Servicing Ontario

Alaska Airlines
8.0
Very good
1,365 reviews

Crew

8.6

Food

7.2

Comfort

8.0

Entertainment

7.1

Overall

8.0

Boarding

8.3

Reviews

1 / 10

We were rebooked from our original 7 am flight to a 9:25 am flight. We tried but could not get seat assignments upon online check-in. At the airport, the security officer almost did not let us through to the gate, since our boarding pass had no QR code and said "seat assignment at the gate." When we made it to the gate and asked for seat assignments, the gate agents kept telling us that they were not authorized to assign us seats and that we would be assigned seats 30 mins prior to departure. They referred us to the service center that would not help either. Since they also said that the flight was full, we were left in doubt if we were going to make it onto this flight. Finally, after everybody else's seats had been assigned, about 15 mins to departure they assigned us two separate seats. We could not sit together. Whoever designed seat assignment and boarding procedures at Alaska Airlines must have zero understanding of how to make such a process work smoothly and efficiently. We'll think twice before booking another flight with Alaska!

Alaska Airlines
8.0
Very good
1,365 reviews
Alaska Airlines
8.0
Very good
1,365 reviews

Crew

8.6

Food

7.2

Comfort

8.0

Entertainment

7.1

Overall

8.0

Boarding

8.3

Reviews

1 / 10

We were rebooked from our original 7 am flight to a 9:25 am flight. We tried but could not get seat assignments upon online check-in. At the airport, the security officer almost did not let us through to the gate, since our boarding pass had no QR code and said "seat assignment at the gate." When we made it to the gate and asked for seat assignments, the gate agents kept telling us that they were not authorized to assign us seats and that we would be assigned seats 30 mins prior to departure. They referred us to the service center that would not help either. Since they also said that the flight was full, we were left in doubt if we were going to make it onto this flight. Finally, after everybody else's seats had been assigned, about 15 mins to departure they assigned us two separate seats. We could not sit together. Whoever designed seat assignment and boarding procedures at Alaska Airlines must have zero understanding of how to make such a process work smoothly and efficiently. We'll think twice before booking another flight with Alaska!

Delta
7.9
Good
2,076 reviews
Alaska Airlines
8.0
Very good
1,365 reviews

Crew

8.6

Food

7.2

Comfort

8.0

Entertainment

7.1

Overall

8.0

Boarding

8.3

Reviews

1 / 10

We were rebooked from our original 7 am flight to a 9:25 am flight. We tried but could not get seat assignments upon online check-in. At the airport, the security officer almost did not let us through to the gate, since our boarding pass had no QR code and said "seat assignment at the gate." When we made it to the gate and asked for seat assignments, the gate agents kept telling us that they were not authorized to assign us seats and that we would be assigned seats 30 mins prior to departure. They referred us to the service center that would not help either. Since they also said that the flight was full, we were left in doubt if we were going to make it onto this flight. Finally, after everybody else's seats had been assigned, about 15 mins to departure they assigned us two separate seats. We could not sit together. Whoever designed seat assignment and boarding procedures at Alaska Airlines must have zero understanding of how to make such a process work smoothly and efficiently. We'll think twice before booking another flight with Alaska!

United Airlines
7.6
Good
1,217 reviews
Alaska Airlines
8.0
Very good
1,365 reviews

Crew

8.6

Food

7.2

Comfort

8.0

Entertainment

7.1

Overall

8.0

Boarding

8.3

Reviews

1 / 10

We were rebooked from our original 7 am flight to a 9:25 am flight. We tried but could not get seat assignments upon online check-in. At the airport, the security officer almost did not let us through to the gate, since our boarding pass had no QR code and said "seat assignment at the gate." When we made it to the gate and asked for seat assignments, the gate agents kept telling us that they were not authorized to assign us seats and that we would be assigned seats 30 mins prior to departure. They referred us to the service center that would not help either. Since they also said that the flight was full, we were left in doubt if we were going to make it onto this flight. Finally, after everybody else's seats had been assigned, about 15 mins to departure they assigned us two separate seats. We could not sit together. Whoever designed seat assignment and boarding procedures at Alaska Airlines must have zero understanding of how to make such a process work smoothly and efficiently. We'll think twice before booking another flight with Alaska!

American Airlines
7.4
Good
1,670 reviews
Alaska Airlines
8.0
Very good
1,365 reviews

Crew

8.6

Food

7.2

Comfort

8.0

Entertainment

7.1

Overall

8.0

Boarding

8.3

Reviews

1 / 10

We were rebooked from our original 7 am flight to a 9:25 am flight. We tried but could not get seat assignments upon online check-in. At the airport, the security officer almost did not let us through to the gate, since our boarding pass had no QR code and said "seat assignment at the gate." When we made it to the gate and asked for seat assignments, the gate agents kept telling us that they were not authorized to assign us seats and that we would be assigned seats 30 mins prior to departure. They referred us to the service center that would not help either. Since they also said that the flight was full, we were left in doubt if we were going to make it onto this flight. Finally, after everybody else's seats had been assigned, about 15 mins to departure they assigned us two separate seats. We could not sit together. Whoever designed seat assignment and boarding procedures at Alaska Airlines must have zero understanding of how to make such a process work smoothly and efficiently. We'll think twice before booking another flight with Alaska!

Frontier
6.1
Okay
538 reviews
Alaska Airlines
8.0
Very good
1,365 reviews

Crew

8.6

Food

7.2

Comfort

8.0

Entertainment

7.1

Overall

8.0

Boarding

8.3

Reviews

1 / 10

We were rebooked from our original 7 am flight to a 9:25 am flight. We tried but could not get seat assignments upon online check-in. At the airport, the security officer almost did not let us through to the gate, since our boarding pass had no QR code and said "seat assignment at the gate." When we made it to the gate and asked for seat assignments, the gate agents kept telling us that they were not authorized to assign us seats and that we would be assigned seats 30 mins prior to departure. They referred us to the service center that would not help either. Since they also said that the flight was full, we were left in doubt if we were going to make it onto this flight. Finally, after everybody else's seats had been assigned, about 15 mins to departure they assigned us two separate seats. We could not sit together. Whoever designed seat assignment and boarding procedures at Alaska Airlines must have zero understanding of how to make such a process work smoothly and efficiently. We'll think twice before booking another flight with Alaska!

Related info for your journey

Useful info, stats and facts about Milwaukee to Ontario flights.

Which airlines flying from Milwaukee-Mitchell to Ontario have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Milwaukee-Mitchell to Ontario that may be offering flexible cancellation policies are American Airlines, United Airlines, and Frontier. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

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

Yes, there are multiple flights from Milwaukee to Ontario for under $200. The cheapest flight booked recently is on Frontier for just $166, but on average you can expect to pay $228.

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

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

What are the cheapest airlines flying from Milwaukee to Ontario round-trip?

Our cheapest airline available from Milwaukee to Ontario is Frontier. Our recent data shows that you can find tickets from as low as $166 on this airline. An additional option worth looking into is American Airlines, starting at $251. Frontier is priced at 60% lower than the current average price of a flight leaving 3 months from now.

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

The cheapest airlines for a one-way flight from Milwaukee to Ontario are Frontier ($90), American Airlines ($136), and Delta ($180).

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

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

What are the cheapest flights from Milwaukee to Ontario?

Looking at all options, your cheapest flight can be booked for $137. While the most popular route (Milwaukee-Mitchell - Ontario) can be booked for $208 on average our data indicates $632 when flying from Milwaukee to Ontario.

Alternative routes for Milwaukee to Ontario

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

Top 5 airlines flying from Milwaukee to Ontario

The chart below displays the airlines Cheapflights users traveling from Milwaukee to Ontario choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
FrontierCheapest$166Average$276FlexibilityNo cancel feeOn-time62%COVID-19 safety
Search Frontier flights
Spirit AirlinesCheapest$258Average$377FlexibilityNo cancel feeOn-time65%COVID-19 safety
Search Spirit Airlines flights
United AirlinesCheapest$338Average$505FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights
American AirlinesCheapest$383Average$656FlexibilityNo cancel feeOn-time71%COVID-19 safety
Search American Airlines flights
DeltaCheapest$406Average$616FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
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