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Missouri

$190+ Cheap flights from Ottawa (YOW) to Missouri

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 3/14. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — STL
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Ottawa to Missouri

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 January 29, 2026.

This United Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/1711:10 am
YOW
-
MCI
1 stop11h 49m
United Airlines
Thu 2/198:00 am
MCI
-
YOW
1 stop12h 18m
United Airlines
Deal found 1/27$316
This United Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/245:11 pm
YOW
-
STL
1 stop4h 54m
United Airlines
Tue 3/36:25 am
STL
-
YOW
1 stop9h 42m
United Airlines
Deal found 1/26$319
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/95:20 pm
YOW
-
STL
1 stop6h 36m
United Airlines
Sat 4/117:45 am
STL
-
YOW
1 stop5h 14m
United Airlines
Deal found 1/28$322
This United Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/265:11 pm
YOW
-
STL
1 stop5h 29m
United Airlines
Fri 2/277:41 am
STL
-
YOW
2 stops13h 15m
United Airlines
Deal found 1/29$348
This Air Canada deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/97:00 am
YOW
-
STL
1 stop6h 06m
Air Canada
Sat 5/167:30 am
STL
-
YOW
1 stop6h 40m
Air Canada
Deal found 1/27$356
This United Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/96:25 am
YOW
-
STL
1 stop5h 23m
United Airlines
Sat 5/167:45 am
STL
-
YOW
2 stops12h 30m
United Airlines
Deal found 1/27$407
This Kiwi.com deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/193:55 pm
YOW
-
STL
2 stops15h 56m
Multiple Airlines
Fri 2/209:02 pm
STL
-
YOW
1 stop23h 28m
Multiple Airlines
Deal found 1/29$420
This Delta deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/95:55 am
YOW
-
STL
2 stops11h 50m
Delta
Sat 5/166:45 am
STL
-
YOW
2 stops9h 50m
Delta
Deal found 1/27$426
This United Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/23:10 pm
YOW
-
STL
2 stops8h 48m
United Airlines
Thu 2/57:00 am
STL
-
YOW
1 stop5h 32m
United Airlines
Deal found 1/26$442
This United Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/137:30 pm
YOW
-
MCI
2 stops16h 08m
United Airlines
Sat 2/143:22 pm
MCI
-
YOW
2 stops7h 32m
United Airlines
Deal found 1/29$447
This United Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/195:11 pm
YOW
-
STL
1 stop5h 29m
United Airlines
Fri 2/207:00 am
STL
-
YOW
1 stop5h 34m
United Airlines
Deal found 1/29$454
This United Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/136:20 am
YOW
-
MCI
1 stop9h 00m
United Airlines
Fri 3/209:15 am
MCI
-
YOW
1 stop11h 03m
United Airlines
Deal found 1/27$533

Find flight deals from Ottawa to Missouri

Keep the following information in mind while searching for Ottawa to Missouri flight deals. Data was last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$316
(United Airlines)

One-way from

$190
(Air Canada)

Popular in

August

Cheapest in

January

Average price

$406
Provider with most accurate pricing for Ottawa-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ottawa-Lambert-St Louis flights.
Search Deals
From Ottawa to Missouri
Search Deals
One-way flight from Ottawa to Missouri
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($41 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 2,558,603 searches. Data last updated January 29, 2026.
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

OttawaKansas City

YOW - MCI

YOWMCI

Ottawa

Tue 2/17

11:10 am-9:59 pm

1 stop11h 49m

Kansas City

Thu 2/19

8:00 am-9:18 pm

1 stop12h 18m

$316

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Tue 2/24

5:11 pm-9:05 pm

1 stop4h 54m

Lambert-St Louis

Tue 3/3

6:25 am-2:27 pm

2 stops7h 02m

$319

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Thu 2/26

5:11 pm-10:59 pm

1 stop6h 48m

Lambert-St Louis

Thu 3/5

7:41 am-5:12 pm

1 stop8h 31m

$319

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Thu 4/9

6:00 am-10:56 pm

3 stops17h 56m

Lambert-St Louis

Sat 4/11

7:45 am-1:59 pm

1 stop5h 14m

$322

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Thu 2/26

5:11 pm-9:40 pm

1 stop5h 29m

Lambert-St Louis

Fri 2/27

7:41 am-9:56 pm

2 stops13h 15m

$348

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Sat 5/9

6:25 am-10:48 am

1 stop5h 23m

Lambert-St Louis

Sat 5/16

7:45 am-9:15 pm

2 stops12h 30m

$407

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Thu 2/19

3:55 pm-6:51 am

2 stops15h 56m

Lambert-St Louis

Fri 2/20

9:02 pm-9:30 pm

1 stop23h 28m

$420

OttawaKansas City

YOW - MCI

YOWMCI

Ottawa

Fri 2/13

7:30 pm-10:38 am

2 stops16h 08m

Kansas City

Sat 2/14

5:30 pm-11:54 pm

1 stop5h 24m

$447

OttawaKansas City

YOW - MCI

YOWMCI

Ottawa

Fri 3/13

6:20 am-2:20 pm

1 stop9h 00m

Kansas City

Fri 3/20

9:15 am-9:18 pm

1 stop11h 03m

$533

OttawaKansas City

YOW - MCI

YOWMCI

Ottawa

Sun 3/15

11:10 am-9:59 pm

1 stop11h 49m

Kansas City

Sun 3/22

6:30 pm-10:26 am

1 stop14h 56m

$642

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 16 results
1
2

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 $240). Flying from Ottawa to Missouri in August is currently the most expensive (average of $478). 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.

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 January 29, 2026.
Peruse reviews from past customers who have flown with Air Canada from Ottawa to Missouri to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,667 reviews

Overall

7.1

Entertainment

6.8

Boarding

7.3

Crew

7.8

Comfort

7.1

Food

6.3

Reviews

1 / 20
4.0
Okay

Sugith,Jan 2026

YSB - YYZ

Left 2 hours late. Stuck on plane for an hour after boarding before take off.
Air Canada
7.1
Good
10,667 reviews
Air Canada
7.1
Good
10,667 reviews

Overall

7.1

Entertainment

6.8

Boarding

7.3

Crew

7.8

Comfort

7.1

Food

6.3

Reviews

1 / 20
4.0
Okay

Sugith,Jan 2026

YSB - YYZ

Left 2 hours late. Stuck on plane for an hour after boarding before take off.

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?

    For a flight from Ottawa to Missouri, you will be flying from Ottawa. Ottawa (YOW) is just 6.6 mi from the center of the city.

  • How long is the flight from Ottawa to Missouri?

    For as low as $316, United Airlines can have you in Missouri from Ottawa in 11h 49m. The distance from Ottawa to Missouri is about 1055 mi.

  • 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 $240). Flying from Ottawa to Missouri in August is currently the most expensive (average of $478). 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 airline flying from Ottawa to Missouri

Discover the top airline 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 2,558,603 searches. Data last updated January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$350Average$641FlexibilityNo cancel feeOn-time67%

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