Skip to content

Get United's best fares today on flights from Ontario to Milwaukee from *

Select journey type

Enter to select travel class and passengers

Low fare calendar for flights from Ontario (ONT) to Milwaukee (MKE)

Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
1
2
3
4
5
6
7
8
9
10
11
from
$454*
Viewed:21 hours ago
Economy
Return:12/18/19
12
from
$479*
Viewed:an hour ago
Economy
Return:12/19/19
13
from
$506*
Viewed:an hour ago
Economy
Return:12/20/19
14
from
$716*
Viewed:an hour ago
Economy
Return:12/21/19
15
from
$582*
Viewed:an hour ago
Economy
Return:12/22/19
16
from
$582*
Viewed:an hour ago
Economy
Return:12/23/19
17
from
$582*
Viewed:an hour ago
Economy
Return:12/24/19
18
from
$548*
Viewed:an hour ago
Economy
Return:01/01/20
19
from
$664*
Viewed:an hour ago
Economy
Return:01/02/20
20
from
$827*
Viewed:an hour ago
Economy
Return:01/03/20
21
from
$773*
Viewed:an hour ago
Economy
Return:01/04/20
22
from
$703*
Viewed:an hour ago
Economy
Return:01/05/20
23
from
$573*
Viewed:an hour ago
Economy
Return:01/06/20
24
from
$427*
Viewed:an hour ago
Economy
Return:01/07/20
25
from
$323*
Viewed:an hour ago
Economy
Return:01/08/20
26
from
$449*
Viewed:an hour ago
Economy
Return:01/09/20
27
from
$452*
Viewed:an hour ago
Economy
Return:01/10/20
28
from
$457*
Viewed:an hour ago
Economy
Return:01/11/20
29
from
$452*
Viewed:an hour ago
Economy
Return:01/12/20
30
from
$449*
Viewed:an hour ago
Economy
Return:01/13/20
31
from
$422*
Viewed:an hour ago
Economy
Return:01/14/20
from
$417*
Viewed:an hour ago
Economy
Return:01/15/20
from
$688*
Viewed:an hour ago
Economy
Return:01/09/20
from
$571*
Viewed:an hour ago
Economy
Return:01/10/20
from
$541*
Viewed:an hour ago
Economy
Return:01/18/20
Lowest PriceToday
*Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

Looking for additional flights from Ontario to Milwaukee?

FromToDatesFare TypePrice

Ontario (ONT)

Milwaukee (MKE)

Depart: 12/21/19

Return: 01/04/20

Roundtrip
from
$773*
Viewed:44minutesago

Ontario (ONT)

Milwaukee (MKE)

Depart: 12/15/19

Return: 12/29/19

Roundtrip
from
$971*
Viewed:44minutesago

Ontario (ONT)

Milwaukee (MKE)

Depart: 12/16/19

Return: 12/30/19

Roundtrip
from
$670*
Viewed:44minutesago

Ontario (ONT)

Milwaukee (MKE)

Depart: 12/19/19

Return: 01/02/20

Roundtrip
from
$664*
Viewed:44minutesago

Ontario (ONT)

Milwaukee (MKE)

Depart: 12/29/19

Return: 01/12/20

Roundtrip
from
$452*
Viewed:44minutesago

Ontario (ONT)

Milwaukee (MKE)

Depart: 12/28/19

Return: 01/11/20

Roundtrip
from
$457*
Viewed:44minutesago

Ontario (ONT)

Milwaukee (MKE)

Depart: 12/24/19

Return: 01/07/20

Roundtrip
from
$427*
Viewed:44minutesago

Ontario (ONT)

Milwaukee (MKE)

Depart: 01/02/20

Return: 01/16/20

Roundtrip
from
$747*
Viewed:44minutesago

Ontario (ONT)

Milwaukee (MKE)

Depart: 01/04/20

Return: 01/18/20

Roundtrip
from
$541*
Viewed:44minutesago

Ontario (ONT)

Milwaukee (MKE)

Depart: 01/07/20

Return: 01/21/20

Roundtrip
from
$296*
Viewed:44minutesago

*Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

Weather in Milwaukee

Wednesday scattered clouds
15°F 12/11/19
Thursday light snow
37°F 12/12/19
Friday light rain
36°F 12/13/19
Saturday light snow
33°F 12/14/19
Sunday sky is clear
17°F 12/15/19
Monday snow
28°F 12/16/19
Tuesday snow
18°F 12/17/19
Powered by: OpenWeatherMap.org