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Cheap flights from Ontario to Milwaukee from $221

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Milwaukee departing on 10/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Ontario to Milwaukee

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
3:25 pm - 11:37 pm
YUL
-
MKE
9h 12m
1 stop
United Airlines Logo
10:30 am - 9:26 pm
MKE
-
YUL
9h 56m
1 stop
$382United Airlines
Wed, Sep 16 - Sat, Sep 19
United Airlines Logo
3:25 pm - 11:37 pm
YUL
-
MKE
9h 12m
1 stop
United Airlines Logo
10:30 am - 9:26 pm
MKE
-
YUL
9h 56m
1 stop
$385United Airlines
Wed, Sep 16 - Sat, Sep 19
American Airlines Logo
1:15 pm - 8:03 pm
YYZ
-
MKE
7h 48m
1 stop
American Airlines Logo
5:03 am - 2:32 pm
MKE
-
YYZ
8h 29m
1 stop
$385American Airlines
Wed, Sep 23 - Sat, Sep 26
United Airlines Logo
9:15 am - 4:42 pm
YUL
-
MKE
8h 27m
2 stops
United Airlines Logo
10:30 am - 10:06 pm
MKE
-
YUL
10h 36m
2 stops
$386United Airlines
Sat, Jul 4 - Sat, Sep 12
United Airlines Logo
6:10 am - 5:25 pm
YUL
-
MKE
12h 15m
1 stop
United Airlines Logo
10:19 am - 5:30 pm
MKE
-
YUL
6h 11m
1 stop
$387United Airlines
Sat, Aug 29 - Tue, Sep 1
United Airlines Logo
6:10 am - 9:53 am
YUL
-
MKE
4h 43m
1 stop
United Airlines Logo
5:00 am - 10:40 am
MKE
-
YUL
4h 40m
1 stop
$388United Airlines
Wed, Jul 22 - Wed, Jul 29
American Airlines Logo
7:55 am - 12:23 pm
YUL
-
MKE
5h 28m
1 stop
American Airlines Logo
6:20 am - 12:27 pm
MKE
-
YUL
5h 07m
1 stop
$389American Airlines
Sat, Aug 29 - Tue, Sep 1
American Airlines Logo
1:15 pm - 8:03 pm
YYZ
-
MKE
7h 48m
1 stop
American Airlines Logo
2:48 pm - 11:26 pm
MKE
-
YYZ
7h 38m
1 stop
$391American Airlines
Wed, Sep 23 - Sat, Sep 26
American Airlines Logo
3:14 pm - 10:21 pm
YYZ
-
MKE
8h 07m
1 stop
American Airlines Logo
6:01 am - 5:34 pm
MKE
-
YYZ
10h 33m
1 stop
$393American Airlines
Tue, Jul 14 - Tue, Jul 21
United Airlines Logo
11:00 am - 6:39 pm
YUL
-
MKE
8h 39m
2 stops
United Airlines Logo
6:10 am - 4:21 pm
MKE
-
YUL
9h 11m
1 stop
$397United Airlines
Sat, Nov 7 - Wed, Nov 11

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Delta flights from Region of Ontario to Milwaukee

Our best Delta deals on Region of Ontario to Milwaukee flight tickets
Delta
Jul 13
YYZ9:45 amToronto Pearson Intl
7h 17m
1 stop
MKE4:02 pmMilwaukee-Mitchell
Jul 20
MKE9:39 amMilwaukee-Mitchell
6h 45m
1 stop
YYZ5:24 pmToronto Pearson Intl
$459
Delta
Jul 25
YUL6:00 amMontreal Pierre Elliott Trudeau Intl
7h 54m
1 stop
MKE12:54 pmMilwaukee-Mitchell
Jul 31
MKE1:22 pmMilwaukee-Mitchell
9h 03m
1 stop
YUL11:25 pmMontreal Pierre Elliott Trudeau Intl
$485
Delta
Jul 18
YUL6:00 amMontreal Pierre Elliott Trudeau Intl
7h 54m
1 stop
MKE12:54 pmMilwaukee-Mitchell
Jul 25
MKE4:57 pmMilwaukee-Mitchell
5h 28m
1 stop
YUL11:25 pmMontreal Pierre Elliott Trudeau Intl
$538

United Airlines flights from Region of Ontario to Milwaukee

Our best United Airlines deals on Region of Ontario to Milwaukee flight tickets
United Airlines
Sep 16
YUL3:25 pmMontreal Pierre Elliott Trudeau Intl
9h 12m
1 stop
MKE11:37 pmMilwaukee-Mitchell
Sep 19
MKE10:30 amMilwaukee-Mitchell
9h 56m
1 stop
YUL9:26 pmMontreal Pierre Elliott Trudeau Intl
$382
United Airlines
Sep 16
YUL3:25 pmMontreal Pierre Elliott Trudeau Intl
9h 12m
1 stop
MKE11:37 pmMilwaukee-Mitchell
Sep 19
MKE10:30 amMilwaukee-Mitchell
9h 56m
1 stop
YUL9:26 pmMontreal Pierre Elliott Trudeau Intl
$385
United Airlines
Jul 4
YUL9:15 amMontreal Pierre Elliott Trudeau Intl
8h 27m
2 stops
MKE4:42 pmMilwaukee-Mitchell
Sep 12
MKE10:30 amMilwaukee-Mitchell
10h 36m
2 stops
YUL10:06 pmMontreal Pierre Elliott Trudeau Intl
$386

momondo Fare Finder

 
Customize your flight search to find flights from Region of 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, momondo users made 832,500 searches. Data last updated June 19, 2026.
Use the filters below to find and compare flights from Ontario to Milwaukee that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Wed 9/16

3:25 pm-11:37 pm

1 stop9h 12m

Milwaukee-Mitchell

Sat 9/19

10:30 am-9:26 pm

1 stop9h 56m

$382

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Wed 9/16

3:25 pm-11:37 pm

1 stop9h 12m

Milwaukee-Mitchell

Sat 9/19

10:30 am-9:26 pm

1 stop9h 56m

$385

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Wed 9/23

1:15 pm-8:03 pm

1 stop7h 48m

Milwaukee-Mitchell

Sat 9/26

5:03 am-2:32 pm

1 stop8h 29m

$385

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Sat 7/4

9:15 am-4:42 pm

2 stops8h 27m

Milwaukee-Mitchell

Sat 9/12

10:30 am-10:06 pm

2 stops10h 36m

$386

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Sat 8/29

6:10 am-5:25 pm

1 stop12h 15m

Milwaukee-Mitchell

Tue 9/1

10:19 am-5:30 pm

1 stop6h 11m

$387
Quickest round-trip

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Wed 7/22

6:10 am-9:53 am

1 stop4h 43m

Milwaukee-Mitchell

Wed 7/29

5:00 am-10:40 am

1 stop4h 40m

$388

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Sat 8/29

7:55 am-12:23 pm

1 stop5h 28m

Milwaukee-Mitchell

Tue 9/1

6:20 am-12:27 pm

1 stop5h 07m

$389

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Wed 9/23

1:15 pm-8:03 pm

1 stop7h 48m

Milwaukee-Mitchell

Sat 9/26

2:48 pm-11:26 pm

1 stop7h 38m

$391

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Tue 7/14

3:14 pm-10:21 pm

1 stop8h 07m

Milwaukee-Mitchell

Tue 7/21

6:01 am-5:34 pm

1 stop10h 33m

$393

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Sat 11/7

11:00 am-6:39 pm

2 stops8h 39m

Milwaukee-Mitchell

Wed 11/11

6:10 am-4:21 pm

1 stop9h 11m

$397

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Milwaukee from

How to get the cheapest flight ticket from Region of Ontario to Milwaukee

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Milwaukee?

The cheapest month to fly to Milwaukee from Region of Ontario is in November. Flight prices, which tend to average around $178, are often lower during this time because this is during the off-season. The month of October is another great option to travel to Milwaukee, with average flight prices from Region of Ontario averaging around $253.

Cheap Region of Ontario to Milwaukee flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to Milwaukee

Fastest flight time

4h 28m

Direct flights

None
The fastest flight from Region of Ontario to Milwaukee takes 4h 28m
There are no direct flights from Region of Ontario to Milwaukee. There are no popular flight routes from Region of Ontario to Milwaukee.
Search flight deals

Frequently asked questions about flying from Ontario to Milwaukee

  • When did momondo last update prices for flights from Ontario to Milwaukee-Mitchell Airport?

    Prices for flights from Ontario to Milwaukee-Mitchell Airport were last updated today.

  • How old do you have to be to fly from Ontario to Milwaukee-Mitchell Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario to Milwaukee-Mitchell Airport.

  • What documentation or ID do you need to fly to Milwaukee-Mitchell Airport?

    The necessary travel and health documents for your Milwaukee-Mitchell Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Milwaukee?

Book flights to Milwaukee if you plan to visit one of these locations
Sheboygan
Waukesha
Wauwatosa
Oak Creek
Mequon
Glendale
Pewaukee
West Bend
Port Washington
Kohler
New Berlin
Grafton

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Milwaukee?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ontario to Milwaukee for you.

Can I find flights from Ontario to Milwaukee with flexible booking policies on momondo?

Flights from Ontario to Milwaukee with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Ontario to Milwaukee?

momondo provides multiple filters to help you find the best flight to Milwaukee from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Ontario to Milwaukee right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Ontario to Milwaukee flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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