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$273+ Cheap flights from Missouri to Ottawa (YOW)

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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YOW
dic. 3 — dic. 101
mié. 12/3
mié. 12/10
1 adult, Economy
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Cheap flight deals from Missouri to Ottawa

Keep the following information in mind while searching for Missouri to Ottawa flight deals. Data was last updated noviembre 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$361
(Air Canada)

One-way from

$273
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$824
Provider with most accurate pricing for Lambert-St Louis-Ottawa flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Ottawa flights.
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From Missouri to Ottawa
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One-way flight from Missouri to Ottawa
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Highest demand for flights based on searches. 20% potential increase in price ($188 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Missouri to Ottawa

Cheapest flights from Missouri to Ottawa
Explore the most affordable flight options available from Missouri to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on noviembre 3, 2025.

This Air Canada deal was found by Cheapflights users on 11/3. 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.
mié. 12/174:05 pmSTL - YOW
1 stop6h 03mAir Canada
vie. 12/199:15 amYOW - STL
1 stop7h 14mAir Canada
Deal found 11/3$361
This United Airlines deal was found by Cheapflights users on 11/1. 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.
sáb. 11/226:10 amMCI - YOW
1 stop6h 22mUnited Airlines
sáb. 11/296:20 amYOW - MCI
1 stop5h 20mUnited Airlines
Deal found 11/1$363
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
dom. 11/304:13 pmSTL - YOW
2 stops23h 38mMultiple Airlines
dom. 12/79:30 amYOW - STL
1 stop14h 03mMultiple Airlines
Deal found 11/2$453
This Air Canada deal was found by Cheapflights users on 11/3. 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.
jue. 12/184:05 pmSTL - YOW
1 stop6h 03mAir Canada
jue. 12/259:15 amYOW - STL
1 stop7h 14mAir Canada
Deal found 11/3$533
This United Airlines deal was found by Cheapflights users on 11/3. 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.
jue. 12/188:05 amSTL - YOW
2 stops14h 49mUnited Airlines
jue. 12/255:09 pmYOW - STL
1 stop5h 34mUnited Airlines
Deal found 11/3$544
This Kiwi.com deal was found by Cheapflights users on 11/1. 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.
mar. 11/410:17 amSTL - YOW
2 stops37h 25mMultiple Airlines
dom. 12/74:20 pmYOW - STL
1 stop17h 39mMultiple Airlines
Deal found 11/1$547
This United Airlines deal was found by Cheapflights users on 11/1. 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.
mar. 12/235:46 pmMCI - YOW
1 stop5h 08mUnited Airlines
sáb. 12/276:15 amYOW - MCI
1 stop5h 28mUnited Airlines
Deal found 11/1$565
This United Airlines deal was found by Cheapflights users on 11/1. 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.
mar. 11/411:05 amSTL - YOW
1 stop5h 07mUnited Airlines
sáb. 11/296:20 amYOW - STL
1 stop7h 08mUnited Airlines
Deal found 11/1$595
This American Airlines deal was found by Cheapflights users on 11/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/175:05 amSTL - YOW
2 stops18h 36mAmerican Airlines
vie. 12/199:10 amYOW - STL
2 stops17h 15mAmerican Airlines
Deal found 11/3$599
This Air Canada deal was found by Cheapflights users on 11/3. 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.
sáb. 11/226:43 pmSTL - YOW
1 stop14h 43mAir Canada
jue. 11/279:15 amYOW - STL
1 stop7h 14mAir Canada
Deal found 11/3$606
This United deal was found by Cheapflights users on 11/3. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/226:43 pmSTL - YOW
2 stops17h 35mMultiple Airlines
jue. 11/279:15 amYOW - STL
1 stop7h 14mMultiple Airlines
Deal found 11/3$618
This Mytrip deal was found by Cheapflights users on 11/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/224:14 pmMCI - YOW
2 stops19h 21mMultiple Airlines
sáb. 11/295:40 amYOW - MCI
2 stops15h 23mMultiple Airlines
Deal found 11/1$651

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri to Ottawa 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 noviembre 3, 2025.
Use the filters below to find and compare flights from Missouri to Ottawa that are best for you.

Fly from

Missouri

Fly to

Ottawa

Route

Depart

Return

Price

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

mar. 4/7

4:05 pm-11:04 pm

1 stop5h 59m

Ottawa

mié. 4/8

10:15 am-3:24 pm

1 stop6h 09m

$361

Kansas CityOttawa

MCI - YOW

MCIYOW

Kansas City

sáb. 11/22

6:10 am-1:32 pm

1 stop6h 22m

Ottawa

sáb. 11/29

6:20 am-10:40 am

1 stop5h 20m

$363

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

mar. 4/7

9:30 am-6:42 pm

2 stops8h 12m

Ottawa

mié. 4/8

6:52 am-2:18 pm

1 stop8h 26m

$372

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

mié. 12/17

10:00 am-11:08 pm

2 stops12h 08m

Ottawa

vie. 12/19

9:15 am-3:29 pm

1 stop7h 14m

$446

Kansas CityOttawa

MCI - YOW

MCIYOW

Kansas City

jue. 1/15

8:00 am-9:18 pm

1 stop12h 18m

Ottawa

dom. 1/18

6:00 am-2:27 pm

2 stops9h 27m

$450

Kansas CityOttawa

MCI - YOW

MCIYOW

Kansas City

jue. 1/15

11:29 am-9:18 pm

1 stop8h 49m

Ottawa

dom. 1/18

6:00 am-3:10 pm

2 stops10h 10m

$450

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

jue. 12/18

4:05 pm-11:08 pm

1 stop6h 03m

Ottawa

jue. 12/25

9:15 am-3:29 pm

1 stop7h 14m

$533

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

jue. 12/18

8:05 am-11:54 pm

2 stops14h 49m

Ottawa

jue. 12/25

5:09 pm-9:43 pm

1 stop5h 34m

$544

Kansas CityOttawa

MCI - YOW

MCIYOW

Kansas City

mar. 12/23

5:46 pm-11:54 pm

1 stop5h 08m

Ottawa

sáb. 12/27

6:15 am-10:43 am

1 stop5h 28m

$565

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

mié. 12/17

5:05 am-12:41 am

2 stops18h 36m

Ottawa

vie. 12/19

9:10 am-1:25 am

2 stops17h 15m

$599

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

Showing 1-10 of 14 results
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Best time to book a flight from Missouri to Ottawa

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

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

Currently, December is the cheapest month in which you can book a flight from Missouri to Ottawa (average of $141). Flying from Missouri to Ottawa in April is currently the most expensive (average of $383). 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.

Related info for your journey

Find useful and relevant information for your journey from Missouri to Ottawa. 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 into for flights to Ottawa from Missouri?

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

  • How long is the flight from Missouri to Ottawa?

    For as low as $361, Air Canada can have you in Ottawa from Missouri in 5h 59m. The distance from Missouri to Ottawa is about 878 mi. This flight may include one or multiple stops.

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

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

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

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

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

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

    Currently, December is the cheapest month in which you can book a flight from Missouri to Ottawa (average of $141). Flying from Missouri to Ottawa in April is currently the most expensive (average of $383). 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

Traveling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Petawawa

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Alternative routes for Missouri to Ottawa

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

Discover the top 2 airlines that operate flights from Missouri to Ottawa. 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 noviembre 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$330Average$834FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$362Average$857FlexibilityNo cancel feeOn-time69%

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