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$273+ Cheap flights from Ottawa (YOW) to Milwaukee (MKE)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/20. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — MKE
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Ottawa to Milwaukee

Cheapest flights from Ottawa to Milwaukee
Explore the most affordable flight options available from Ottawa to Milwaukee. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This United Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/266:20 am
YOW
-
MKE
1 stop7h 15m
United Airlines
Mon 3/21:25 pm
MKE
-
YOW
2 stops7h 31m
United Airlines
Deal found 1/26$319
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/45:11 pm
YOW
-
MKE
1 stop5h 48m
United Airlines
Wed 2/113:20 pm
MKE
-
YOW
1 stop4h 58m
United Airlines
Deal found 1/28$381
This Delta deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/265:40 am
YOW
-
MKE
2 stops11h 28m
Delta
Mon 3/21:21 pm
MKE
-
YOW
2 stops10h 18m
Delta
Deal found 1/27$464
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/145:11 pm
YOW
-
MKE
1 stop5h 39m
United Airlines
Sat 3/215:00 am
MKE
-
YOW
1 stop4h 26m
United Airlines
Deal found 1/28$492
This American Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/46:40 am
YOW
-
MKE
2 stops10h 17m
American Airlines
Wed 2/115:41 am
MKE
-
YOW
3 stops11h 47m
American Airlines
Deal found 1/28$762
This American Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/146:45 am
YOW
-
MKE
2 stops14h 30m
American Airlines
Sat 3/216:00 am
MKE
-
YOW
3 stops12h 28m
American Airlines
Deal found 1/28$1,030

Find flight deals from Ottawa to Milwaukee

Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) to Milwaukee (MKE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$319
(United Airlines)

One-way from

$273
(Delta)
Provider with most accurate pricing for Ottawa-Milwaukee-Mitchell flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ottawa-Milwaukee-Mitchell flights.
Search Deals
From Ottawa to Milwaukee-Mitchell
Search Deals
One-way flight from Ottawa to Milwaukee-Mitchell
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ottawa 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, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Ottawa to Milwaukee that are best for you.

Fly from

Ottawa

Fly to

Milwaukee

Route

Depart

Return

Price

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Thu 2/26

6:20 am-2:05 pm

1 stop8h 45m

Milwaukee-Mitchell

Mon 3/2

6:00 am-1:34 pm

1 stop6h 34m

$319

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Wed 2/25

3:15 pm-9:44 pm

2 stops7h 29m

Milwaukee-Mitchell

Wed 3/4

11:30 am-5:07 pm

1 stop4h 37m

$319

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Thu 2/26

5:40 am-4:08 pm

2 stops11h 28m

Milwaukee-Mitchell

Mon 3/2

1:21 pm-12:39 am

2 stops10h 18m

$464

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Mon 7/20

5:55 am-6:02 pm

2 stops13h 07m

$273

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Mon 7/20

7:00 am-9:15 pm

3 stops15h 15m

$489

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

  • Most accurate provider: When it comes to deals on Ottawa-Milwaukee flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ottawa-Milwaukee flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ottawa-Milwaukee flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ottawa-Milwaukee flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ottawa-Milwaukee flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ottawa to Milwaukee

Have a flexible travel schedule? Discover the best time to fly to Milwaukee from Ottawa with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ottawa to Milwaukee

What is the cheapest month to book a flight from Ottawa to Milwaukee?

Currently, September is the cheapest month in which you can book a flight from Ottawa to Milwaukee (average of $131). Flying from Ottawa to Milwaukee in March is currently the most expensive (average of $248). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Ottawa to Milwaukee. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ottawa to Milwaukee?

    There are many flights that can get you from Ottawa to Milwaukee in 8h 45m. Fly via United Airlines to get the fastest option. There are 627 mi between Ottawa and Milwaukee.

  • Can I find deals for flights from Ottawa to Milwaukee that include hotel bookings?

    Yes. In addition to deals on Ottawa to Milwaukee flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ottawa to Milwaukee?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ottawa to Milwaukee.

  • Can I find deals for business class flights from Ottawa to Milwaukee?

    Yes. Cheapflights offers flight deals from Ottawa to Milwaukee by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ottawa to Milwaukee?

    Currently, September is the cheapest month in which you can book a flight from Ottawa to Milwaukee (average of $131). Flying from Ottawa to Milwaukee in March is currently the most expensive (average of $248). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Milwaukee?

Book flights to Milwaukee if you plan to visit one of these locations
Sheboygan
New Berlin
Oak Creek
Wauwatosa

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