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$147+ 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 2/22. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YOW
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
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 January 8, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$349
(United Airlines)

One-way from

$147
(United Airlines)

Popular in

July

Cheapest in

February
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. 21% potential increase in price ($200 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($40 potential savings vs. average RT price).
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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 January 8, 2026.

This Air Canada deal was found by Cheapflights users on 1/6. 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.
Fri 6/261:15 pmSTL - YOW
1 stop5h 30mAir Canada
Sat 7/44:00 pmYOW - STL
1 stop5h 02mAir Canada
Deal found 1/6$333
This United Airlines deal was found by Cheapflights users on 1/7. 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 2/28:00 amMCI - YOW
1 stop8h 12mUnited Airlines
Fri 2/69:45 amYOW - MCI
1 stop6h 25mUnited Airlines
Deal found 1/7$349
This United Airlines deal was found by Cheapflights users on 1/7. 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 2/28:30 amSTL - YOW
1 stop14h 24mUnited Airlines
Fri 2/65:55 pmYOW - STL
1 stop7h 04mUnited Airlines
Deal found 1/7$349
This United Airlines deal was found by Cheapflights users on 1/6. 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.
Wed 2/410:10 amSTL - YOW
2 stops10h 46mUnited Airlines
Wed 2/112:15 pmYOW - STL
2 stops7h 58mUnited Airlines
Deal found 1/6$364
This Kiwi.com deal was found by Cheapflights users on 1/8. 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.
Fri 3/1312:16 pmSTL - YOW
2 stops23h 19mMultiple Airlines
Wed 3/189:30 amYOW - STL
1 stop14h 49mMultiple Airlines
Deal found 1/8$417
This United Airlines deal was found by Cheapflights users on 1/6. 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 6/267:25 amSTL - YOW
1 stop4h 45mUnited Airlines
Sat 7/46:00 amYOW - STL
2 stops10h 21mUnited Airlines
Deal found 1/6$425
This Air Canada deal was found by Cheapflights users on 1/7. 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.
Mon 2/28:05 amSTL - YOW
2 stops8h 36mAir Canada
Fri 2/610:20 amYOW - STL
1 stop6h 09mAir Canada
Deal found 1/7$431
This United Airlines deal was found by Cheapflights users on 1/7. 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.
Sun 6/146:15 amMCI - YOW
2 stops7h 55mUnited Airlines
Sat 6/206:00 pmYOW - MCI
2 stops15h 51mUnited Airlines
Deal found 1/7$434
This United Airlines deal was found by Cheapflights users on 1/8. 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.
Sun 2/226:55 pmSTL - YOW
2 stops18h 35mUnited Airlines
Sun 3/15:48 pmYOW - STL
1 stop7h 17mUnited Airlines
Deal found 1/8$434
This United Airlines deal was found by Cheapflights users on 1/6. 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 2/2010:24 amMCI - YOW
2 stops10h 32mUnited Airlines
Fri 2/2710:30 amYOW - MCI
2 stops12h 29mUnited Airlines
Deal found 1/6$439
This United Airlines deal was found by Cheapflights users on 1/7. 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 2/218:00 amMCI - YOW
1 stop8h 07mUnited Airlines
Sat 2/282:15 pmYOW - MCI
2 stops8h 44mUnited Airlines
Deal found 1/7$500
This United Airlines deal was found by Cheapflights users on 1/7. 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 1/155:45 pmMCI - YOW
1 stop5h 09mUnited Airlines
Sun 1/186:20 amYOW - MCI
1 stop5h 12mUnited Airlines
Deal found 1/7$521

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 January 8, 2026.
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

Kansas CityOttawa

MCI - YOW

MCIYOW

Kansas City

Mon 2/2

3:24 pm-9:18 pm

1 stop4h 54m

Ottawa

Fri 2/6

9:45 am-3:10 pm

1 stop6h 25m

$349

Kansas CityOttawa

MCI - YOW

MCIYOW

Kansas City

Sat 2/21

8:00 am-5:07 pm

1 stop8h 07m

Ottawa

Sat 2/28

5:11 pm-9:59 pm

1 stop5h 48m

$349

Kansas CityOttawa

MCI - YOW

MCIYOW

Kansas City

Sun 2/22

8:00 am-9:18 pm

1 stop12h 18m

Ottawa

Sun 3/1

6:20 am-3:45 pm

1 stop10h 25m

$349

Kansas CityOttawa

MCI - YOW

MCIYOW

Kansas City

Fri 2/20

9:10 am-9:18 pm

1 stop11h 08m

Ottawa

Fri 2/27

6:20 am-3:45 pm

1 stop10h 25m

$349

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Fri 2/13

6:45 pm-10:26 am

1 stop14h 41m

Ottawa

Wed 2/18

11:10 am-9:05 pm

1 stop10h 55m

$349

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Mon 2/2

11:20 am-5:12 pm

1 stop4h 52m

Ottawa

Fri 2/6

5:55 pm-11:59 pm

1 stop7h 04m

$349

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Sun 2/22

7:41 am-9:18 pm

1 stop12h 37m

Ottawa

Sun 3/1

6:20 am-9:05 pm

1 stop15h 45m

$349

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Wed 2/4

10:10 am-9:56 pm

2 stops10h 46m

Ottawa

Wed 2/11

5:11 pm-10:58 pm

1 stop6h 47m

$358

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Fri 3/13

12:16 pm-12:35 pm

2 stops23h 19m

Ottawa

Wed 3/18

9:30 am-11:19 pm

1 stop14h 49m

$417

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Mon 2/2

8:05 am-5:41 pm

2 stops8h 36m

Ottawa

Fri 2/6

10:20 am-3:29 pm

1 stop6h 09m

$431

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/8

Showing 1-10 of 12 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, May is the cheapest month in which you can book a flight from Missouri to Ottawa (average of $150). Flying from Missouri to Ottawa in January is currently the most expensive (average of $646). 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 $349, United Airlines can have you in Ottawa from Missouri in 4h 54m. The distance from Missouri to Ottawa is about 1055 mi.

  • 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, May is the cheapest month in which you can book a flight from Missouri to Ottawa (average of $150). Flying from Missouri to Ottawa in January is currently the most expensive (average of $646). 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 January 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$330Average$879FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$362Average$857FlexibilityNo cancel feeOn-time69%

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