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Cheap flights from Ottawa to Milwaukee from C$ 427

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/2. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — MKE
26 Feb — 5 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ottawa to Milwaukee

Enter your travel dates to find the best prices.

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 27 January 2026.

Thu 26/25:11 p.m.
YOW
-
MKE
1 stop5h 33m
United Airlines
Mon 2/35:00 a.m.
MKE
-
YOW
1 stop15h 18m
United Airlines
Deal found 25/1C$ 427
Thu 26/25:40 a.m.
YOW
-
MKE
2 stops11h 28m
Delta
Mon 2/31:21 p.m.
MKE
-
YOW
2 stops10h 18m
Delta
Deal found 25/1C$ 574
Sun 1/35:40 a.m.
YOW
-
MKE
2 stops7h 54m
WestJet
Sat 7/311:15 a.m.
MKE
-
YOW
2 stops12h 24m
WestJet
Deal found 26/1C$ 1,245

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 27 January 2026.

Round-trip from

C$ 427
United Airlines
  • United Airlines
  • 26/2-2/3
  • 2 total stops
  • 20h 51m total
  • Ottawa to Milwaukee
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 629,999 searches. Data last updated 27 January 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 26/2

5:11 p.m.-9:44 p.m.

1 stop5h 33m

Milwaukee-Mitchell

Mon 2/3

5:00 a.m.-9:18 p.m.

1 stop15h 18m

C$ 427

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Thu 26/2

5:40 a.m.-4:08 p.m.

2 stops11h 28m

Milwaukee-Mitchell

Mon 2/3

1:21 p.m.-12:39 a.m.

2 stops10h 18m

C$ 574

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Sun 1/3

5:40 a.m.-12:34 p.m.

2 stops7h 54m

Milwaukee-Mitchell

Sat 7/3

11:15 a.m.-12:39 a.m.

2 stops12h 24m

C$ 1,245

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/1

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 C$ 179). Flying from Ottawa to Milwaukee in March is currently the most expensive (average of C$ 340). 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.

Reviews of airlines servicing Milwaukee

Get insights into the airlines that provide service to Milwaukee. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Milwaukee. Reviews last updated 27 January 2026.
See what other customers who have flown with United Airlines from Ottawa to Milwaukee have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,205 reviews
Check prices

Comfort

7.3

Boarding

7.7

Food

6.6

Entertainment

7.1

Crew

8.1

Overall

7.4

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,205 reviews
United Airlines
7.4
Good
9,205 reviews
Check prices

Comfort

7.3

Boarding

7.7

Food

6.6

Entertainment

7.1

Crew

8.1

Overall

7.4

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

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?

    Departing from Ottawa to Milwaukee will take you 5h 33m. Ottawa and Milwaukee are separated by a distance of 1009 km. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Ottawa to Milwaukee round-trip?

    United Airlines, at C$ 473, was found to be the cheapest airline from Ottawa to 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 C$ 179). Flying from Ottawa to Milwaukee in March is currently the most expensive (average of C$ 340). 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

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Alternative routes for Ottawa to Milwaukee

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Ottawa to Milwaukee

Discover the top airline that operate flights from Ottawa to Milwaukee. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 27 January 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 473AverageC$ 940FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Ottawa to Milwaukee?

When you search for this flight from Ottawa to Milwaukee, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Ottawa to Milwaukee?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ottawa to Milwaukee.

Can Cheapflights find flights from Ottawa to Milwaukee with no change fees?

Need flexible booking options for your flight to Milwaukee from Ottawa? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Ottawa to Milwaukee become cheaper?

Yes! Start tracking prices for Ottawa to Milwaukee flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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