$227 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 7/24. 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, 0 bags

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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Cheap Flights from Ottawa to Missouri

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
St. Louis
St. Louis1 stop$377
Kansas City
Kansas City2 stops$468
St. Louis
St. Louis1 stop$377
Kansas City
Kansas City2 stops$468

Book Cheap Ottawa to Missouri Plane Tickets

 
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

Thu, Jul 9 - Wed, Jul 15
Air Canada Logo
3:10 pm - 6:42 pm
YOW
-
STL
4h 32m
1 stop
Air Canada Logo
8:55 am - 3:10 pm
STL
-
YOW
5h 15m
1 stop
$377Air Canada
Tue, Aug 18 - Sat, Nov 7
Air Canada Logo
2:35 pm - 6:42 pm
YOW
-
STL
5h 07m
1 stop
Air Canada Logo
4:15 pm - 11:48 pm
STL
-
YOW
6h 33m
1 stop
$382Air Canada
Tue, Aug 18 - Sat, Nov 7
United Airlines Logo
6:05 am - 3:38 pm
YOW
-
STL
10h 33m
2 stops
United Airlines Logo
9:23 am - 9:34 pm
STL
-
YOW
11h 11m
1 stop
$383United Airlines
Mon, Jul 27 - Mon, Aug 3
United Airlines Logo
5:50 pm - 11:44 pm
YOW
-
STL
6h 54m
1 stop
United Airlines Logo
4:53 pm - 9:11 am
STL
-
YOW
15h 18m
1 stop
$390United Airlines
Fri, Jul 3 - Tue, Jul 7
United Airlines Logo
6:00 am - 3:46 pm
YOW
-
STL
10h 46m
2 stops
United Airlines Logo
1:13 pm - 10:05 pm
STL
-
YOW
7h 52m
2 stops
$391United Airlines
Fri, Jul 3 - Tue, Jul 7
United Airlines Logo
5:50 pm - 11:44 pm
YOW
-
STL
6h 54m
1 stop
United Airlines Logo
9:20 am - 5:07 pm
STL
-
YOW
6h 47m
1 stop
$393United Airlines
Tue, Sep 1 - Wed, Sep 2
United Airlines Logo
5:20 pm - 10:00 pm
YOW
-
STL
5h 40m
1 stop
United Airlines Logo
9:30 am - 9:15 pm
STL
-
YOW
10h 45m
2 stops
$399United Airlines
Thu, Jul 9 - Wed, Jul 15
Air Canada Logo
3:10 pm - 6:42 pm
YOW
-
STL
4h 32m
1 stop
Air Canada Logo
8:55 am - 3:10 pm
STL
-
YOW
5h 15m
1 stop
$402Air Canada
Thu, Jul 9 - Wed, Jul 15
Air Canada Logo
3:10 pm - 6:42 pm
YOW
-
STL
4h 32m
1 stop
Air Canada Logo
7:20 am - 6:48 pm
STL
-
YOW
10h 28m
2 stops
$422Air Canada
Wed, Aug 12 - Mon, Aug 17
Delta Logo
12:25 pm - 11:27 pm
YOW
-
MCI
12h 02m
2 stops
Delta Logo
12:22 pm - 12:20 am
MCI
-
YOW
10h 58m
2 stops
$468Delta
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.

How much is a round-trip flight from Ottawa to Missouri?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Ottawa to Missouri departing in August.

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 May, when tickets cost $285 (return) on average. On the other hand, the most expensive months are September and February, when the average cost of round-trip tickets is $511 and $385 respectively.

Find deals

Good to know

Low seasonFebruary
Cheapest flight$227
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly and prices are also 15% 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 travelers 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.

Reviews of the top airline 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.
7.1
Air CanadaOverall score based on 11168 reviews
6.3Food
7.1Comfort
7.8Crew
7.3Boarding
6.8Entertainment
Airline reviews

It was out first time flying Air Canada and it was ok, comfort-wise. I hope airlines are able to get a quiet room installed for young children flying. Screaming and crying the whole time in business class is quite unfortunate. That was the only thing that really messed up the experience.

8.0 ExcellentAnonymous, Jun 2026
YOW - YVR
Read more Air Canada reviews

It was out first time flying Air Canada and it was ok, comfort-wise. I hope airlines are able to get a quiet room installed for young children flying. Screaming and crying the whole time in business class is quite unfortunate. That was the only thing that really messed up the experience.

It was a nice and smooth trip. Gave a friendly environment throughout the journey.

Meal and drink service was good. Old plane with old business class seats were quite disappointing

Staff were very friendly. Plane left on time and arrived on time.

Air traffic delay meant boarding started, then plane was evacuated and passengers sent back to the terminal for 1 hour. Very little information shared.

Flight itself was not bad at all. However: my checked bag (checked in Calgary) did not make it onto this flight as I found out after I landed at EWR. I still don't have it but it appears that it is on its way to me.

The crew was amazing! I was a bit surprised and disappointed that there was not wifi available for personal use. The only thing I would change would be the seat cushions. They are not comfortable at all for long flights.

Flight and attendance were very good we had 2 hour delay that took the shine of it

The seat design in the premium economy section leaves virtually no room under the seat to store a bag or purse. Other than that, it was a great flight. Arrived early.

The flight was delayed, but not for weather. We landed over 3hrs later than planned.

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

Information on your arrival and departure airports

Ottawa (YOW)