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Cheap flights from Ontario to Milwaukee from $214

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 5/3. 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
0 bags

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Find the cheapest flights from Ontario to Milwaukee

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:05 am - 10:04 am
YOW
-
MKE
4h 59m
1 stop
United Airlines Logo
3:25 pm - 9:35 pm
MKE
-
YOW
5h 10m
1 stop
$357United Airlines
Sat, May 2 - Tue, May 5
United Airlines Logo
6:05 am - 10:04 am
YOW
-
MKE
4h 59m
1 stop
United Airlines Logo
5:10 am - 5:07 pm
MKE
-
YOW
10h 57m
1 stop
$358United Airlines
Sat, May 2 - Tue, May 5
Air Canada Logo
2:40 pm - 8:48 pm
YOW
-
MKE
7h 08m
2 stops
Air Canada Logo
5:55 am - 2:22 pm
MKE
-
YOW
7h 27m
2 stops
$411Air Canada
Sat, May 2 - Tue, May 5
American Airlines Logo
12:30 pm - 3:56 pm
YUL
-
MKE
4h 26m
1 stop
American Airlines Logo
6:40 pm - 11:44 am
MKE
-
YUL
16h 04m
1 stop
$439American Airlines
Fri, Apr 10 - Sun, Apr 12
Delta Logo
9:30 am - 5:16 pm
YUL
-
MKE
8h 46m
1 stop
Delta Logo
1:55 pm - 11:08 pm
MKE
-
YUL
8h 13m
1 stop
$443Delta
Thu, Apr 30 - Mon, May 4
Delta Logo
2:29 pm - 10:30 pm
YUL
-
MKE
9h 01m
1 stop
Delta Logo
9:35 am - 4:15 pm
MKE
-
YUL
5h 40m
1 stop
$444Delta
Thu, Apr 30 - Mon, May 4
American Airlines Logo
4:16 pm - 9:41 pm
YUL
-
MKE
6h 25m
1 stop
American Airlines Logo
6:00 am - 9:37 pm
MKE
-
YUL
14h 37m
1 stop
$453American Airlines
Mon, Apr 13 - Fri, Apr 17
American Airlines Logo
1:15 pm - 11:40 pm
YYZ
-
MKE
11h 25m
1 stop
American Airlines Logo
5:37 pm - 10:53 am
MKE
-
YYZ
16h 16m
1 stop
$460American Airlines
Sat, May 2 - Sat, May 9
WestJet Logo
2:29 pm - 9:30 pm
YUL
-
MKE
8h 01m
1 stop
WestJet Logo
6:25 pm - 11:10 pm
MKE
-
YUL
3h 45m
1 stop
$475WestJet
Fri, May 1 - Thu, Jul 2
WestJet Logo
6:00 am - 1:14 pm
YUL
-
MKE
8h 14m
1 stop
WestJet Logo
9:35 am - 11:08 pm
MKE
-
YUL
12h 33m
1 stop
$478WestJet
Thu, Apr 16 - Thu, Apr 23

United Airlines flights from Region of Ontario to Milwaukee

Our best United Airlines deals on Region of Ontario to Milwaukee flight tickets
United Airlines
May 2
YOW6:05 amOttawa
4h 59m
1 stop
MKE10:04 amMilwaukee-Mitchell
May 5
MKE3:25 pmMilwaukee-Mitchell
5h 10m
1 stop
YOW9:35 pmOttawa
$357
United Airlines
May 2
YOW6:05 amOttawa
4h 59m
1 stop
MKE10:04 amMilwaukee-Mitchell
May 5
MKE5:10 amMilwaukee-Mitchell
10h 57m
1 stop
YOW5:07 pmOttawa
$358
United Airlines
Apr 16
YUL3:25 pmMontreal Pierre Elliott Trudeau Intl
9h 18m
2 stops
MKE11:43 pmMilwaukee-Mitchell
Apr 23
MKE5:10 amMilwaukee-Mitchell
6h 59m
2 stops
YUL1:09 pmMontreal Pierre Elliott Trudeau Intl
$489

American Airlines flights from Region of Ontario to Milwaukee

Our best American Airlines deals on Region of Ontario to Milwaukee flight tickets
American Airlines
Apr 10
YUL12:30 pmMontreal Pierre Elliott Trudeau Intl
4h 26m
1 stop
MKE3:56 pmMilwaukee-Mitchell
Apr 12
MKE6:40 pmMilwaukee-Mitchell
16h 04m
1 stop
YUL11:44 amMontreal Pierre Elliott Trudeau Intl
$439
American Airlines
Apr 13
YUL4:16 pmMontreal Pierre Elliott Trudeau Intl
6h 25m
1 stop
MKE9:41 pmMilwaukee-Mitchell
Apr 17
MKE6:00 amMilwaukee-Mitchell
14h 37m
1 stop
YUL9:37 pmMontreal Pierre Elliott Trudeau Intl
$453
American Airlines
May 2
YYZ1:15 pmToronto Pearson Intl
11h 25m
1 stop
MKE11:40 pmMilwaukee-Mitchell
May 9
MKE5:37 pmMilwaukee-Mitchell
16h 16m
1 stop
YYZ10:53 amToronto Pearson Intl
$460

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 March 23, 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
Quickest round-trip

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Sat 5/2

6:05 am-10:04 am

1 stop4h 59m

Milwaukee-Mitchell

Tue 5/5

3:25 pm-9:35 pm

1 stop5h 10m

$357

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Sat 5/2

6:05 am-10:04 am

1 stop4h 59m

Milwaukee-Mitchell

Tue 5/5

5:10 am-5:07 pm

1 stop10h 57m

$358

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Sat 5/2

2:40 pm-8:48 pm

2 stops7h 08m

Milwaukee-Mitchell

Tue 5/5

5:55 am-2:22 pm

2 stops7h 27m

$411

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Fri 4/10

12:30 pm-3:56 pm

1 stop4h 26m

Milwaukee-Mitchell

Sun 4/12

6:40 pm-11:44 am

1 stop16h 04m

$439

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Thu 4/30

9:30 am-5:16 pm

1 stop8h 46m

Milwaukee-Mitchell

Mon 5/4

1:55 pm-11:08 pm

1 stop8h 13m

$443

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Thu 4/30

2:29 pm-10:30 pm

1 stop9h 01m

Milwaukee-Mitchell

Mon 5/4

9:35 am-4:15 pm

1 stop5h 40m

$444

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Mon 4/13

4:16 pm-9:41 pm

1 stop6h 25m

Milwaukee-Mitchell

Fri 4/17

6:00 am-9:37 pm

1 stop14h 37m

$453

TorontoMilwaukee

YYZ - MKE

YYZMKE

Toronto Pearson Intl

Sat 5/2

1:15 pm-11:40 pm

1 stop11h 25m

Milwaukee-Mitchell

Sat 5/9

5:37 pm-10:53 am

1 stop16h 16m

$460

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Fri 5/1

2:29 pm-9:30 pm

1 stop8h 01m

Milwaukee-Mitchell

Thu 7/2

6:25 pm-11:10 pm

1 stop3h 45m

$475

MontrealMilwaukee

YUL - MKE

YULMKE

Montreal Pierre Elliott Trudeau Intl

Thu 4/16

6:00 am-1:14 pm

1 stop8h 14m

Milwaukee-Mitchell

Thu 4/23

9:35 am-11:08 pm

1 stop12h 33m

$478

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

Can stopping save me money on Region of Ontario to Milwaukee flights?

You could potentially save up to 4% on your flight if you consider stops on a Region of Ontario to Milwaukee flight.

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

3h 49m

Direct flights

None
The fastest flight from Region of Ontario to Milwaukee takes 3h 49m
There are no direct flights from Region of Ontario to Milwaukee. There are no popular flight routes from Region of Ontario to Milwaukee.
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  • 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
Kohler
Port Washington
West Bend
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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