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Cheap flights from Ottawa to Milwaukee from C$ 337

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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — MKE
28 May — 4 Jun1
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 28 April 2026.

Sat 23/510:44 a.m.
YOW
-
MKE
1 stop10h 07m
United Airlines
Wed 27/56:20 a.m.
MKE
-
YOW
1 stop9h 47m
United Airlines
Deal found 23/4C$ 590
Sat 15/86:00 p.m.
YOW
-
MKE
1 stop6h 36m
United Airlines
Sun 16/87:30 a.m.
MKE
-
YOW
1 stop5h 29m
United Airlines
Deal found 27/4C$ 650
Sat 23/56:00 a.m.
YOW
-
MKE
2 stops7h 47m
Air Canada
Wed 27/57:30 a.m.
MKE
-
YOW
2 stops6h 41m
Air Canada
Deal found 24/4C$ 680
Fri 1/56:10 a.m.
YOW
-
MKE
2 stops13h 51m
United Airlines
Mon 4/56:41 p.m.
MKE
-
YOW
1 stop13h 30m
United Airlines
Deal found 26/4C$ 1,006
Sat 15/87:00 a.m.
YOW
-
MKE
3 stops12h 16m
American Airlines
Sun 16/86:46 p.m.
MKE
-
YOW
2 stops19h 09m
American Airlines
Deal found 27/4C$ 1,170
Fri 1/58:40 a.m.
YOW
-
MKE
2 stops10h 20m
American Airlines
Mon 4/55:41 p.m.
MKE
-
YOW
3 stops20h 14m
American Airlines
Deal found 26/4C$ 1,630

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 28 April 2026.

Round-trip from

C$ 590

One-way from

C$ 337
United Airlines
  • United Airlines
  • 23/5-27/5
  • 2 total stops
  • 19h 54m total
  • Ottawa to Milwaukee
Search Deals
United Airlines
  • United Airlines
  • 21/8
  • 2 total stops
  • 15h 30m 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 28 April 2026.
Use the filters below to find and compare flights from Ottawa to Milwaukee that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Sat 23/5

10:44 a.m.-7:51 p.m.

1 stop10h 07m

Milwaukee-Mitchell

Wed 27/5

6:20 a.m.-5:07 p.m.

1 stop9h 47m

C$ 590
Quickest round-trip

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Sat 15/8

6:00 p.m.-11:36 p.m.

1 stop6h 36m

Milwaukee-Mitchell

Sun 16/8

7:30 a.m.-1:59 p.m.

1 stop5h 29m

C$ 650
Cheapest one-way
Quickest one-way

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Wed 10/6

6:25 a.m.-9:57 a.m.

1 stop4h 32m

C$ 337

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Fri 21/8

6:25 a.m.-7:51 p.m.

1 stop14h 26m

C$ 337

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Fri 12/6

6:25 a.m.-7:51 p.m.

1 stop14h 26m

C$ 337

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Wed 10/6

11:00 a.m.-7:58 a.m.

3 stops21h 58m

C$ 489

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Fri 12/6

8:50 p.m.-7:58 a.m.

3 stops36h 08m

C$ 581

OttawaMilwaukee

YOW - MKE

YOWMKE

Ottawa

Fri 21/8

2:20 p.m.-7:58 a.m.

3 stops42h 38m

C$ 598

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/4

Sorted by cheapest first

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.

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 28 April 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
9,672 reviews
Check prices

Comfort

7.3

Entertainment

7.1

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,672 reviews
United Airlines
7.4
Good
9,672 reviews
Check prices

Comfort

7.3

Entertainment

7.1

Food

6.6

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

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 10h 07m. Ottawa and Milwaukee are separated by a distance of 1009 km.

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

    United Airlines, at C$ 471, 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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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 28 April 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 471AverageC$ 936FlexibilityNo 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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