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Cheap flights from Ottawa to Missouri from C$ 246

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 13/12. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — STL
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Ottawa to Missouri

Enter your travel dates to find the best prices.

Cheapest flights from Ottawa to Missouri
Explore the most affordable flight options available from Ottawa to Missouri. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2025.

Fri 12/126:20 a.m.YOW - MCI
1 stop5h 19mUnited Airlines
Tue 16/126:00 a.m.MCI - YOW
2 stops14h 56mUnited Airlines
Deal found 29/10C$ 420
Sat 20/123:10 p.m.YOW - STL
1 stop9h 23mMultiple Airlines
Mon 5/14:05 p.m.STL - YOW
1 stop6h 03mMultiple Airlines
Deal found 29/10C$ 429
Sat 20/125:59 p.m.YOW - STL
1 stop6h 34mUnited Airlines
Mon 5/16:35 p.m.STL - YOW
2 stops18h 55mUnited Airlines
Deal found 29/10C$ 494
Sat 13/127:30 p.m.YOW - MCI
2 stops16h 09mUnited Airlines
Sat 20/126:00 a.m.MCI - YOW
2 stops14h 56mUnited Airlines
Deal found 29/10C$ 647
Tue 23/124:20 p.m.YOW - STL
1 stop31h 13mMultiple Airlines
Tue 30/1211:51 a.m.STL - YOW
1 stop11h 34mMultiple Airlines
Deal found 29/10C$ 656
Fri 12/123:40 p.m.YOW - MCI
3 stops27h 16mMultiple Airlines
Tue 16/126:30 a.m.MCI - YOW
3 stops40h 55mMultiple Airlines
Deal found 29/10C$ 690
Wed 5/115:14 p.m.YOW - STL
1 stop6h 31mUnited Airlines
Mon 10/1112:31 p.m.STL - YOW
1 stop7h 47mUnited Airlines
Deal found 29/10C$ 755
Thu 6/115:14 p.m.YOW - STL
1 stop5h 26mMultiple Airlines
Sun 9/114:05 p.m.STL - YOW
1 stop6h 03mMultiple Airlines
Deal found 30/10C$ 765
Fri 7/119:15 a.m.YOW - STL
1 stop7h 14mAir Canada
Sun 9/114:05 p.m.STL - YOW
1 stop6h 03mAir Canada
Deal found 30/10C$ 772
Thu 6/116:00 a.m.YOW - STL
2 stops9h 24mUnited Airlines
Sun 9/116:43 p.m.STL - YOW
1 stop14h 43mUnited Airlines
Deal found 30/10C$ 814
Fri 7/1110:30 a.m.YOW - STL
2 stops25h 21mUnited Airlines
Sun 9/116:30 a.m.STL - YOW
1 stop9h 42mUnited Airlines
Deal found 30/10C$ 829

Cheap flight deals from Ottawa to Missouri

Keep the following information in mind while searching for Ottawa to Missouri flight deals. Data was last updated 30 October 2025.

Round-trip from

C$ 338

One-way from

C$ 246

Popular in

October

Cheapest in

April

Average price

C$ 1,479
23/1-25/1
  • 23/1-25/1
  • 2 total stops
  • 37h 05m total
  • Ottawa to Missouri
Search Deals
United Airlines
  • United Airlines
  • 13/12
  • 1 total stop
  • 6h 37m total
  • Ottawa to Missouri
Search Deals
Highest demand for flights based on searches. 29% potential increase in price (C$ 555 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (C$ 77 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ottawa to Missouri 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 30 October 2025.
Use the filters below to find and compare flights from Ottawa to Missouri that are best for you.

Fly from

Ottawa

Fly to

Missouri

Route

Depart

Return

Price

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Tue 3/2

9:15 a.m.-3:29 p.m.

1 stop7h 14m

Lambert-St Louis

Wed 4/2

4:05 p.m.-11:08 p.m.

1 stop6h 03m

C$ 413

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Tue 7/4

6:52 a.m.-12:20 p.m.

1 stop6h 28m

Lambert-St Louis

Wed 8/4

6:30 a.m.-12:41 p.m.

1 stop5h 11m

C$ 420

OttawaKansas City

YOW - MCI

YOWMCI

Ottawa

Fri 12/12

6:20 a.m.-10:39 a.m.

1 stop5h 19m

Kansas City

Tue 16/12

6:00 a.m.-9:56 p.m.

2 stops14h 56m

C$ 420

OttawaKansas City

YOW - MCI

YOWMCI

Ottawa

Sun 5/4

6:00 a.m.-11:22 a.m.

1 stop6h 22m

Kansas City

Wed 8/4

6:00 a.m.-4:15 p.m.

2 stops9h 15m

C$ 420

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Sat 20/12

3:10 p.m.-11:33 p.m.

1 stop9h 23m

Lambert-St Louis

Mon 5/1

4:05 p.m.-11:08 p.m.

1 stop6h 03m

C$ 429

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Sat 20/12

5:59 p.m.-11:33 p.m.

1 stop6h 34m

Lambert-St Louis

Mon 5/1

6:35 p.m.-2:30 p.m.

2 stops18h 55m

C$ 494

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Tue 7/4

5:45 a.m.-3:21 p.m.

2 stops10h 36m

Lambert-St Louis

Wed 8/4

4:05 p.m.-11:04 p.m.

1 stop5h 59m

C$ 503

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Wed 4/2

10:20 a.m.-3:29 p.m.

1 stop6h 09m

Lambert-St Louis

Thu 5/2

4:05 p.m.-11:08 p.m.

1 stop6h 03m

C$ 593

OttawaKansas City

YOW - MCI

YOWMCI

Ottawa

Sat 13/12

7:30 p.m.-2:21 p.m.

2 stops19h 51m

Kansas City

Sat 20/12

5:46 p.m.-11:54 p.m.

1 stop5h 08m

C$ 647

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Tue 23/12

4:20 p.m.-10:33 p.m.

1 stop31h 13m

Lambert-St Louis

Tue 30/12

11:51 a.m.-12:25 a.m.

1 stop11h 34m

C$ 656

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/10

Showing 1-10 of 21 results
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Best time to book a flight from Ottawa to Missouri

Have a flexible travel schedule? Discover the best time to fly to Missouri 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 Missouri

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

Currently, October is the cheapest month in which you can book a flight from Ottawa to Missouri (average of C$ 353). Flying from Ottawa to Missouri in June is currently the most expensive (average of C$ 677). 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.

What is the cheapest time of day to fly from YOW to MO?

Find hourly flight availability from Ottawa to Missouri. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 October 2025.

It’s typically best to fly out from Ottawa to Missouri in the afternoon. Doing so could potentially save you 15% on the flight price compared to flying in the evening, which is usually more expensive.

Reviews of airlines servicing Missouri

Get insights into the airlines that provide service to Missouri. 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 Missouri. Reviews last updated 30 October 2025.
Get a feel of what it's like to fly with United Airlines and Air Canada from Ottawa to Missouri by reading reviews from past customers. 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
8,998 reviews
Check prices

Overall

7.4

Boarding

7.7

Entertainment

7.1

Crew

8.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
8,998 reviews
United Airlines
7.4
Good
8,998 reviews
Check prices

Overall

7.4

Boarding

7.7

Entertainment

7.1

Crew

8.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Air Canada
7.1
Good
10,381 reviews
United Airlines
7.4
Good
8,998 reviews
Check prices

Overall

7.4

Boarding

7.7

Entertainment

7.1

Crew

8.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

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

  • What airport do you fly from for flights from Ottawa to Missouri?

    If you book a flight to Missouri from Ottawa, you will be flying from Ottawa, which is the city’s only airport. Ottawa (YOW) is located 10.6 km from the centre of Ottawa.

  • How long is the flight from Ottawa to Missouri?

    Air Canada and United Airlines can get you from Ottawa to Missouri in just under 6h 28m. Your travel time can differ by up to 46m. The distance between Ottawa and Missouri is about 1413 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ottawa to Missouri 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 Missouri?

    Currently, October is the cheapest month in which you can book a flight from Ottawa to Missouri (average of C$ 353). Flying from Ottawa to Missouri in June is currently the most expensive (average of C$ 677). 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 Missouri

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Ottawa to Missouri

Discover the top 2 airlines that operate flights from Ottawa to Missouri. 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 30 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 432AverageC$ 645FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 491AverageC$ 959FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Deals for Ottawa to Missouri flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Ottawa to Missouri for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Need flexible booking options for your flight to Missouri 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 Missouri become cheaper?

Yes! Start tracking prices for Ottawa to Missouri 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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