C$ 254 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 7/6. 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
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Best Missouri Flight Deals from Ottawa

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Kansas City
Kansas City1 stopC$ 589
St. Louis
St. Louis1 stopC$ 426
Kansas City
Kansas City1 stopC$ 589
St. Louis
St. Louis1 stopC$ 426

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

Sat, 23 May - Sun, 24 May
Air Canada Logo
2:40 p.m. - 8:25 p.m.
YOW
-
STL
6h 45m
1 stop
Air Canada Logo
7:05 a.m. - 1:05 p.m.
STL
-
YOW
5h 00m
1 stop
C$ 426Air Canada
Sat, 23 May - Wed, 27 May
United Airlines Logo
5:50 p.m. - 11:35 p.m.
YOW
-
STL
6h 45m
1 stop
United Airlines Logo
6:00 a.m. - 4:38 p.m.
STL
-
YOW
9h 38m
1 stop
C$ 435United Airlines
Tue, 2 Jun - Wed, 3 Jun
United Airlines Logo
10:44 a.m. - 9:16 p.m.
YOW
-
STL
11h 32m
1 stop
United Airlines Logo
6:00 a.m. - 4:38 p.m.
STL
-
YOW
9h 38m
1 stop
C$ 436United Airlines
Sat, 23 May - Sun, 24 May
Air Canada Logo
2:40 p.m. - 8:25 p.m.
YOW
-
STL
6h 45m
1 stop
Air Canada Logo
7:05 a.m. - 1:05 p.m.
STL
-
YOW
5h 00m
1 stop
C$ 439Air Canada
Tue, 2 Jun - Wed, 3 Jun
United Airlines Logo
5:20 p.m. - 9:16 p.m.
YOW
-
STL
4h 56m
1 stop
United Airlines Logo
6:00 a.m. - 10:05 p.m.
STL
-
YOW
15h 05m
1 stop
C$ 444United Airlines
Fri, 24 Jul - Sat, 8 Aug
United Airlines Logo
6:25 a.m. - 3:46 p.m.
YOW
-
STL
10h 21m
1 stop
United Airlines Logo
1:13 p.m. - 9:35 p.m.
STL
-
YOW
7h 22m
1 stop
C$ 445United Airlines
Tue, 2 Jun - Wed, 3 Jun
United Airlines Logo
6:25 a.m. - 3:46 p.m.
YOW
-
STL
10h 21m
1 stop
United Airlines Logo
6:00 a.m. - 4:38 p.m.
STL
-
YOW
9h 38m
1 stop
C$ 447United Airlines
Sun, 14 Jun - Sun, 21 Jun
Air Canada Logo
7:00 a.m. - 12:06 p.m.
YOW
-
STL
6h 06m
1 stop
Air Canada Logo
2:15 p.m. - 12:45 a.m.
STL
-
YOW
9h 30m
1 stop
C$ 479Air Canada
Wed, 12 Aug - Wed, 19 Aug
United Airlines Logo
6:00 a.m. - 3:38 p.m.
YOW
-
STL
10h 38m
2 stops
United Airlines Logo
5:00 a.m. - 2:11 p.m.
STL
-
YOW
8h 11m
2 stops
C$ 517United Airlines
Sat, 23 May - Wed, 27 May
United Airlines Logo
2:52 p.m. - 9:23 p.m.
YOW
-
STL
7h 31m
2 stops
United Airlines Logo
6:00 a.m. - 5:11 p.m.
STL
-
YOW
10h 11m
2 stops
C$ 519United Airlines
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 May.

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 C$ 315 (return) on average. On the other hand, the most expensive months are July and September, when the average cost of round-trip tickets is C$ 785 and C$ 694 respectively.

Good to know

Low seasonFebruary
Cheapest flightC$ 254
Best time to beat the crowds (29% less expensive on average)
Most popular time to fly and prices are also 17% 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.

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 9682 reviews
7.7Boarding
8.1Crew
6.6Food
7.3Comfort
7.1Entertainment
Airline reviews

Seats very comfortable; service efficient and pleasant; flight was on-time; boarding organized.

10.0 ExcellentEirene, May 2026
YYZ - EWR
Read more United Airlines reviews

Seats very comfortable; service efficient and pleasant; flight was on-time; boarding organized.

Starlink is great Crew was polite Business class didn’t get a welcome drink just water and snacks were ok

very average service no complimentary alcoholics drinks unlike other airlines such as Porter airlines No decent seats available during check-in time the day before

Good but airlines getting smaller. I didn't like the meal but the service was fine. Flight was fine and luggage arrived. So good.

They were fast and I like how they used to entertainment system to play video about the safety.

Hopped on time for the flight only to get deplaned and delayed another 2.5 hours.

Given I (and I’m assuming most people) have both carry in and a personal item included in their fare, I find it very unfair that on neither of my flights I was able to use the overhead for my small backpack because they were completely rammed with luggage, people personal items, jackets, hats and other items. So the only item I brought in had to be stuffed under my seat while they had their leg room and sat comfortable with all of their items in the overhead. This has to stop because I was uncomfortable on both flights when I only had one smaller item that could not be checked due to its contents (medication etc). Plenty of people could have checked theirs but chose not to and then took up the space allotment for 2 people.

Flight attendants had a little attitude. Food tastes no good.

Airport terminal was outdated, flight was on a small jet with no wifi

From pre boarding to flight attendant, crew and baggage handler, excellent. Didn’t lost my luggage like West jet.

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.

The stag were helpful, kind and liked the passengers. The plane was pristinely clean! Great flight!

My flight was delayed more than once, but Air Canada updated us regularly. Friends on other airlines had much worse experiences.

Terrible…. Reported missing luggage’s with injectable meds that needed refrigeration. Yet, delivery could not be expedited. Luggage’s were delivered 5 days after arrival. The meds were useless as ice pack had melted. So disappointed!!!

It was a very small plane and was ok. No food or entertainment so there should be an option for NA.

My seat was covered in vomit and I will be reaching out to Air Canada

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

Information on your arrival and departure airports