C$ 314 Find Cheap Flights from Ottawa to Missouri

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ottawa to Missouri departing on 13/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Missouri

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ottawa to Missouri, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ottawa to Missouri, as well as popular online travel agencies
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Best Missouri Flight Deals from Ottawa

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Kansas City
Kansas City2 stopsC$ 1,056
St. Louis
St. Louis1 stopC$ 864
Kansas City
Kansas City2 stopsC$ 1,056
St. Louis
St. Louis1 stopC$ 864

Cheap Flights from Ottawa to Missouri

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ottawa to Missouri that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ottawa to Missouri

Mon, 22 Dec - Mon, 5 Jan
United Airlines Logo
5:09 p.m. - 10:43 p.m.YOW-STL
6h 34m1 stop
United Airlines Logo
11:05 a.m. - 9:18 p.m.STL-YOW
9h 13m1 stop
C$ 864United Airlines
Find Deal
Mon, 22 Dec - Mon, 5 Jan
 Logo
9:45 a.m. - 10:43 p.m.YOW-STL
13h 58m2 stops
 Logo
9:55 a.m. - 10:18 p.m.STL-YOW
11h 23m2 stops
C$ 938
Find Deal
Mon, 18 Aug - Sun, 31 Aug
United Airlines Logo
5:50 p.m. - 11:44 p.m.YOW-STL
6h 54m1 stop
United Airlines Logo
6:35 a.m. - 2:13 p.m.STL-YOW
6h 38m2 stops
C$ 976United Airlines
Find Deal
Mon, 18 Aug - Sun, 31 Aug
WestJet Logo
5:55 a.m. - 11:14 p.m.YOW-STL
18h 19m2 stops
WestJet Logo
5:11 p.m. - 12:22 a.m.STL-YOW
30h 11m2 stops
C$ 1,041WestJet
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Sat, 20 Dec - Sat, 27 Dec
United Airlines Logo
2:15 p.m. - 9:50 p.m.YOW-MCI
8h 35m2 stops
United Airlines Logo
5:46 p.m. - 11:54 p.m.MCI-YOW
5h 08m1 stop
C$ 1,056United Airlines
Find Deal
Sat, 20 Dec - Sat, 27 Dec
United Airlines Logo
2:15 p.m. - 8:31 p.m.YOW-MCI
7h 16m1 stop
United Airlines Logo
5:46 p.m. - 11:54 p.m.MCI-YOW
5h 08m1 stop
C$ 1,079United Airlines
Find Deal
Sat, 20 Dec - Sat, 27 Dec
United Airlines Logo
12:05 p.m. - 8:04 p.m.YOW-MCI
8h 59m2 stops
United Airlines Logo
10:05 a.m. - 9:18 p.m.MCI-YOW
10h 13m2 stops
C$ 1,233United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Ottawa to Missouri flights

Get data-powered insights and trends into flights from Ottawa to Missouri to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Ottawa to Missouri?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ottawa to Missouri, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ottawa to Missouri is April, when tickets cost C$ 429 (return) on average. On the other hand, the most expensive months are October and November, when the average cost of round-trip tickets is C$ 1,619 and C$ 1,237 respectively.


Good to know

Low seasonJune
Cheapest flightC$ 314
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly and prices are also 33% lower on average.
Flight from Ottawa to St. Louis

FAQs - booking Missouri flights

  • How does KAYAK find such low prices on flights from Ottawa to Missouri?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ottawa to Missouri.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ottawa to Missouri?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ottawa to Missouri is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ottawa to Missouri?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Ottawa to Missouri with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ottawa to Missouri?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Ottawa to Missouri up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Missouri?

    The cheapest time of day to fly to Missouri is generally in the morning, when round-trip flights cost C$ 641 on average. Morning departures are around 5% cheaper than evening flights, on average. The most expensive time of day to fly to Missouri is generally at night, which is peak travel time and where the average cost of a ticket is C$ 701.

Reviews of the top airlines flying from Ottawa to Missouri

 
See real verified KAYAK customer reviews for airlines flying from Ottawa to Missouri. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ottawa to Missouri? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8900 reviews
7.1Entertainment
6.6Food
8.1Crew
7.3Comfort
7.7Boarding
Airline reviews

It was all good flight was on time, service was good I enjoyed a few movies and everything was smooth

10.0 ExcellentAnonymous, Jul 2025YYZ - SFO
Read more United Airlines reviews

It was all good flight was on time, service was good I enjoyed a few movies and everything was smooth

Efficient, calm when things were delayed and kept us regularly informed of what was happening.

Airbus plane, nice and polite staff, entertainment even as it was a short flight.

Very nice and clean plane. Transit time between flights was tight though

Our flights got changed from United to Air Canada and our purchased seats did not get transferred so we had to pay for seats twice. I brought it up with Air Canada and they stated I had to go back and chase it with United. The united seats were $21 Canadian each and Air Canada were $56 each so we have paid $77 for each seat. Very unhappy

So far so good but food and entertainment are not available for this flight

Plane temperature was comfortable (not to hot) when boarding and waiting for takeoff.

Michael, our FA was very attentive, even finding me a chocolate brownie from economy class when the dessert selections were all dairy based. ( intolerant, not allergic so don’t usually need to order dairy free)

We tried to upgrade to economy premium but were told this was not possible as we had booked through United Airlines (and Air Canada was operating the flight). This seemed silly given there was ample space in economy premium. Additionally, we had to wait almost 1.5 hours upon arrival to taxi to the gate. Otherwise, the crew were very pleasant and passengers were friendly.

It was my first time with United Airlines and I would say it was very good experience and best of all the flights were on time. Will definitely fly with United Airlines next time.

Flight got delayed for no reason. And Air Canada was doing 3 boardings via the same gate. It was chaotic!

Wonderful airline. All staff were pleasant and helpful. What is sad is that it wasn’t grand gestures just everyday pleasantness and friendliness that are missing from the other airlines I have flown recently.

Friendly efficient crew, but plane had no way to charge phone. That is a near necessity with today’s travel where we carry out travel documents on our phones.

Orlando to Canada, despite being close and an international flight, the plane was not at all comfortable. It felt like the chair was being pushed forward, in addition to not having a TV and having to choose from a tiny glass of drink, for example, water or soda. I couldn't have both. When I asked the flight attendant for an extra glass of water, she looked at me with an ugly face. This is ridiculous. They don't want to give water to passengers. I will never fly with this airline again in my life.

Staff was very courteous and kept things organized. We will definitely use Air Canada for further travel

In a nutshell, my bag, the one I have to pay for, because now you can’t even bring a carry on, did not make it. I am still waiting for an update. The fact that not only were have to pay for it, but on top of that we are stuck without getting it, it’s ridiculous..

Great flights. 90 minute departure delay for maintenance issues, not a great start but, afer that very good. Didn't pay extra for seats and lucked into a window and an aisle seat. Price was excellent at the super low economy level.

This was an excellent experience for a very short flight.

No space in overhead bin, one cookie, 2 oz of juice - is not customer service.

Just a little improvement on food but everything is excellent

Everything you need to know for your flight from Ottawa to Missouri

Information on your arrival and departure airports

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