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  4. Milwaukee, WI - Ontario, CA

Cheap Flights from Milwaukee, WI (MKE) to Ontario, CA (ONT)

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Discover the cheapest flights from Milwaukee, WI to Ontario, CA
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Tue, May 27 - Sun, Jun 1
Frontier Airlines
Frontier Airlines1 stop
MKE - ONT
Spirit Airlines
Spirit AirlinesDirect
ONT - MKE
218$
211$
Prime price per passenger
Thu, May 1 - Thu, May 8
Frontier Airlines
Frontier Airlines1 stop
MKE - ONT
Spirit Airlines
Spirit AirlinesDirect
ONT - MKE
231$
220$
Prime price per passenger
Thu, Apr 24 - Sat, Apr 26
Frontier Airlines
Frontier Airlines1 stop
MKE - ONT
Spirit Airlines
Spirit Airlines1 stop
ONT - MKE
237$
229$
Prime price per passenger
Sat, Jun 7 - Sun, Jun 15
Frontier Airlines
Frontier Airlines1 stop
MKE - ONT
American Airlines
American Airlines1 stop
ONT - MKE
309$
304$
Prime price per passenger
Wed, May 14 - Tue, May 20
American Airlines
American Airlines1 stop
MKE - ONT
Alaska Airlines
Alaska Airlines1 stop
ONT - MKE
322$
310$
Prime price per passenger
Mon, Jun 16 - Thu, Jun 19
American Airlines
American Airlines1 stop
MKE - ONT
American Airlines
American Airlines1 stop
ONT - MKE
379$
372$
Prime price per passenger
Tue, Jun 17
American Airlines
American Airlines1 stop
MKE - ONT
140$
137$
Prime price per passenger
Sun, Apr 27
Frontier Airlines
Frontier Airlines1 stop
MKE - ONT
145$
139$
Prime price per passenger
Sat, May 24
Frontier Airlines
Frontier Airlines1 stop
MKE - ONT
147$
143$
Prime price per passenger
Fri, Jun 6
Frontier Airlines
Frontier Airlines1 stop
MKE - ONT
156$
144$
Prime price per passenger
Sun, May 11
Frontier Airlines
Frontier Airlines1 stop
MKE - ONT
153$
148$
Prime price per passenger
Thu, Apr 24
Frontier Airlines
Frontier Airlines1 stop
MKE - ONT
157$
150$
Prime price per passenger
Prices shown below were available within the past 3 days for the period specified and should not be considered the final price offered. Please note that availability and prices are subject to change.

Cheapest time to fly from Milwaukee, WI to Ontario, CA

Flexible with dates? We find the best price for the week of the day you select *Prices may vary after you search.
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week: May 19 - May 25
Flights from just $171
$175
$238
$186
$177
$184
$310
$171
$194
$277
$372
$326
$299
AprilMayJune
Cheapest flight$136The best price for flights from Milwaukee, WI to Ontario, CA offered by eDreams, which have been found by our customers in the last 3 days
Departure AirportGeneral Mitchell FieldGeneral Mitchell Field is where you'll take off when flying from Milwaukee, WI to Ontario, CA
Arrival AirportOntario InternationalYou'll land at Ontario International when flying from Milwaukee, WI to Ontario, CA
Peak seasonAugustAugust is the busiest time to fly from Milwaukee, WI to Ontario, CA according to search data results from our customers
Best time to bookAugustAugust is one of the most frequent times to fly to Ontario, CA from Milwaukee, WI according to real data from our customers

Route information

Distance: 1711 miles
Milwaukee, WI airports
General Mitchell Field (MKE)How far from city center: 6 miles
Ontario, CA airports
Ontario International (ONT)How far from city center: 2 miles

Are you searching for flights from Milwaukee, WI to Ontario, CA?

Are you planning to travel to Ontario, CA for vacations, business or family visits? eDreams offers you the cheapest flights and best deals departing from Milwaukee, WI. With our fast search engine you will get a large selection of airfares from standard and low cost airlines worldwide and easily book your tickets for this route. If you are flexible we help you identify the cheapest day to fly to Ontario, CA and if you need to leave soon you can check our most convenient last minute fares. Read all the useful information about your next destination and proceed to the reservation, indicating your flight dates and completing your travel booking with hotels and car rental!

Frequently asked questions about flights from Milwaukee, WI to Ontario, CA

What are the benefits of booking flexible flight tickets?
Using the flexible flight ticket, you're guaranteed a refund or a rebooking option (without fees) in case of flight cancellations when travelling to United States. At eDreams have you covered!
For flights from Milwaukee, WI to Ontario, CA, how can I find the cheapest price?
The cheapest price for a flight from Milwaukee, WI to Ontario, CA is $137. At eDreams we use different machine learned based methodologies to find our costumers the best option available, considering airline combinations, stopovers and direct flights as well as different criteria for inbound and outbound journeys.
When booking, when is the best time to get the best prices for flights from Milwaukee, WI to Ontario, CA?
The most popular months to book a trip from Milwaukee, WI to Ontario, CA are August, May and July, based on the searches of our customers.
When is the best time to travel from Milwaukee, WI to Ontario, CA?
The best time of the year to visit Ontario, CA depends on lots of personal preferences, especially the price. Regarding popularity, August is the best month to fly to Ontario, CA from Milwaukee, WI in terms of searches from our customers, followed by June and March. If you prefer to avoid the busy season and get away from the crowds January, September and December are the months with fewer searches for Milwaukee, WI - Ontario, CA.
How is the weather in Ontario, CA compared to Milwaukee, WI?
While in Milwaukee, WI the temperatures can reach an average of 29.05 ºC in summer, with precipitation levels up to 6 mm ,Ontario, CA's temperatures can go up to 36.7 ºC during the hot season, with 1.4 mm average of rain rate . In winter, however, weather indicators show around -0.46 ºC in Ontario, CA, compared to the -17.94 ºC average degrees reported in Milwaukee, WI. During the winter period, Milwaukee, WI can register 3 mm precipitation, while Ontario, CA have an average of 3 mm rain level.
Which airports have flights between Milwaukee, WI and Ontario, CA?

The main route from Milwaukee, WI to Ontario, CA is: General Mitchell Field (MKE) to Ontario International (ONT). The following airlines fly this route:

American Airlines.

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