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$193+ 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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — YOW
Jul 21 — Jul 281
Tue 7/21
Tue 7/28
1 adult, Economy
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Cheap 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 June 21, 2026.

This Air Canada deal was found by Cheapflights users on 6/16. 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.
Sun 9/208:55 am
STL
-
YOW
1 stop5h 15m
Air Canada
Sat 9/2610:00 am
YOW
-
STL
1 stop5h 00m
Air Canada
Deal found 6/16$468
This United Airlines deal was found by Cheapflights users on 6/16. 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 7/206:01 am
STL
-
YOW
1 stop15h 04m
United Airlines
Wed 7/225:50 pm
YOW
-
STL
1 stop6h 54m
United Airlines
Deal found 6/16$487
This Air Canada deal was found by Cheapflights users on 6/16. 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 7/208:55 am
STL
-
YOW
1 stop5h 15m
Air Canada
Wed 7/229:00 am
YOW
-
STL
1 stop6h 02m
Air Canada
Deal found 6/16$489
This United Airlines deal was found by Cheapflights users on 6/16. 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 7/1510:20 am
STL
-
YOW
2 stops12h 34m
United Airlines
Wed 7/225:50 pm
YOW
-
STL
1 stop6h 54m
United Airlines
Deal found 6/16$497
This United Airlines deal was found by Cheapflights users on 6/19. 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 8/3112:59 pm
STL
-
YOW
1 stop7h 36m
United Airlines
Wed 9/26:00 am
YOW
-
STL
3 stops10h 38m
United Airlines
Deal found 6/19$498
This United Airlines deal was found by Cheapflights users on 6/16. 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 9/178:00 am
STL
-
YOW
1 stop12h 35m
United Airlines
Sun 9/203:10 pm
YOW
-
STL
1 stop9h 28m
United Airlines
Deal found 6/16$528
This Kiwi.com deal was found by Cheapflights users on 6/18. 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 7/164:09 pm
STL
-
YOW
1 stop21h 26m
Multiple Airlines
Thu 7/232:10 pm
YOW
-
STL
2 stops19h 47m
Multiple Airlines
Deal found 6/18$529
This Air Canada deal was found by Cheapflights users on 6/20. 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 8/3112:59 pm
STL
-
YOW
1 stop7h 36m
Air Canada
Wed 9/26:00 am
YOW
-
STL
2 stops9h 57m
Air Canada
Deal found 6/20$582
This United Airlines deal was found by Cheapflights users on 6/17. 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 7/93:26 pm
MCI
-
YOW
1 stop5h 39m
United Airlines
Thu 7/166:25 am
YOW
-
MCI
1 stop5h 04m
United Airlines
Deal found 6/17$626
This Flighttix deal was found by Cheapflights users on 6/17. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/93:16 pm
MCI
-
YOW
1 stop5h 19m
Air Canada
Thu 7/1612:00 pm
YOW
-
MCI
2 stops12h 25m
Air Canada
Deal found 6/17$634
This United Airlines deal was found by Cheapflights users on 6/19. 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 10/179:59 am
MCI
-
YOW
1 stop6h 17m
United Airlines
Tue 10/206:00 am
YOW
-
MCI
1 stop14h 46m
United Airlines
Deal found 6/19$646
This United Airlines deal was found by Cheapflights users on 6/16. 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 7/166:05 am
MCI
-
YOW
1 stop15h 00m
United Airlines
Wed 7/226:25 am
YOW
-
MCI
1 stop6h 57m
United Airlines
Deal found 6/16$647

Find flight deals from Missouri to Ottawa

Keep the following information in mind while searching for Missouri to Ottawa flight deals. Data was last updated June 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$468
(Air Canada)

One-way from

$193
(Kiwi.com)

Popular in

August

Cheapest in

June

Average price

$204
Provider with most accurate pricing for Lambert-St Louis-Ottawa flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Ottawa flights.
Search Deals
From Missouri to Ottawa
Search Deals
One-way flight from Missouri to Ottawa
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($213 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 June 21, 2026.
Use the filters below to find and compare flights from Missouri to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Wed 7/15

7:20 am-1:59 pm

1 stop5h 39m

Ottawa

Wed 7/22

5:50 pm-11:44 pm

1 stop6h 54m

$487

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Mon 8/31

8:00 am-9:35 pm

1 stop12h 35m

Ottawa

Wed 9/2

5:20 pm-10:00 pm

1 stop5h 40m

$487

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Mon 7/20

6:01 am-10:05 pm

1 stop15h 04m

Ottawa

Wed 7/22

5:50 pm-11:44 pm

1 stop6h 54m

$487

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Thu 9/17

8:00 am-11:54 pm

2 stops14h 54m

Ottawa

Sun 9/20

6:00 am-3:38 pm

3 stops10h 38m

$549
Quickest round-trip

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Mon 7/20

6:00 am-1:54 pm

2 stops6h 54m

Ottawa

Wed 7/22

10:00 am-2:02 pm

1 stop5h 02m

$580

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Mon 8/31

12:59 pm-10:10 pm

2 stops8h 11m

Ottawa

Wed 9/2

9:00 am-2:02 pm

1 stop6h 02m

$580

Kansas CityOttawa

MCI - YOW

MCIYOW

Kansas City

Thu 7/9

3:16 pm-9:35 pm

1 stop5h 19m

Ottawa

Thu 7/16

12:00 pm-11:25 pm

2 stops12h 25m

$634

Kansas CityOttawa

MCI - YOW

MCIYOW

Kansas City

Sat 10/17

9:59 am-5:16 pm

1 stop6h 17m

Ottawa

Tue 10/20

6:00 am-7:46 pm

1 stop14h 46m

$646

Kansas CityOttawa

MCI - YOW

MCIYOW

Kansas City

Thu 7/16

6:05 am-10:05 pm

1 stop15h 00m

Ottawa

Wed 7/22

6:25 am-12:22 pm

1 stop6h 57m

$647
Cheapest one-way

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Sun 8/30

8:50 am-9:35 pm

1 stop11h 45m

$215

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/17

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

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, August is the cheapest month in which you can book a flight from Missouri to Ottawa (average of $98). Flying from Missouri to Ottawa in December is currently the most expensive (average of $473). 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 $634, United Airlines can have you in Ottawa from Missouri in 5h 19m. The distance from Missouri to Ottawa is about 1055 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, August is the cheapest month in which you can book a flight from Missouri to Ottawa (average of $98). Flying from Missouri to Ottawa in December is currently the most expensive (average of $473). 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

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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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O'Hare Intl to Toronto Island flights
Minneapolis to Pierre Elliott Trudeau Intl flights
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Charlotte to Pearson Intl flights
Los Angeles to Toronto Island flights
Midway to Toronto Island flights
Tampa to Pearson Intl flights
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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 June 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$139Average$542FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$203Average$597FlexibilityNo cancel feeOn-time69%

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