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Missouri

$176+ 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 12/13. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — STL
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Find 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 October 30, 2025.

This United Airlines deal was found by Cheapflights users on 10/28. 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.
Sat 12/137:30 pmYOW - MCI
2 stops16h 09mUnited Airlines
Mon 12/156:27 pmMCI - YOW
2 stops18h 09mUnited Airlines
Deal found 10/28$301
This United deal was found by Cheapflights users on 10/29. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/203:10 pmYOW - STL
1 stop9h 23mMultiple Airlines
Mon 1/54:05 pmSTL - YOW
1 stop6h 03mMultiple Airlines
Deal found 10/29$307
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Sat 12/205:59 pmYOW - STL
1 stop6h 34mUnited Airlines
Mon 1/56:35 pmSTL - YOW
2 stops18h 55mUnited Airlines
Deal found 10/29$354
This United Airlines deal was found by Cheapflights users on 10/29. 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 12/1210:30 amYOW - MCI
2 stops12h 28mUnited Airlines
Tue 12/166:00 amMCI - YOW
2 stops7h 30mUnited Airlines
Deal found 10/29$354
This Air Canada deal was found by Cheapflights users on 10/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/129:15 amYOW - STL
1 stop7h 14mAir Canada
Fri 12/194:05 pmSTL - YOW
1 stop8h 33mAir Canada
Deal found 10/28$448
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Thu 12/116:20 amYOW - MCI
1 stop9h 01mUnited Airlines
Thu 12/116:27 pmMCI - YOW
2 stops18h 09mUnited Airlines
Deal found 10/27$462
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Sat 12/137:30 pmYOW - MCI
2 stops16h 09mUnited Airlines
Sat 12/206:00 amMCI - YOW
2 stops14h 56mUnited Airlines
Deal found 10/29$463
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Tue 12/234:20 pmYOW - STL
1 stop31h 13mMultiple Airlines
Tue 12/3011:51 amSTL - YOW
1 stop11h 34mMultiple Airlines
Deal found 10/29$470
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/138:50 pmYOW - MCI
3 stops27h 25mMultiple Airlines
Mon 12/157:01 pmMCI - YOW
2 stops21h 12mMultiple Airlines
Deal found 10/28$472
This Mytrip deal was found by Cheapflights users on 10/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/123:40 pmYOW - MCI
3 stops27h 16mMultiple Airlines
Tue 12/166:30 amMCI - YOW
3 stops40h 55mMultiple Airlines
Deal found 10/29$494
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Wed 11/55:14 pmYOW - STL
1 stop6h 31mUnited Airlines
Mon 11/1012:31 pmSTL - YOW
1 stop7h 47mUnited Airlines
Deal found 10/29$541
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Fri 12/126:00 amYOW - STL
2 stops10h 40mUnited Airlines
Fri 12/198:15 amSTL - YOW
1 stop14h 39mUnited Airlines
Deal found 10/28$559

Cheap flight deals from Ottawa to Missouri

Keep the following information in mind while searching for Ottawa to Missouri flight deals. Data was last updated October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$242
(Kiwi.com)

One-way from

$176
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$554
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. 2% potential increase in price ($19 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 October 2025
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 October 30, 2025.
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

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Fri 1/23

9:30 am-10:33 pm

1 stop14h 03m

Lambert-St Louis

Sun 1/25

5:11 pm-5:13 pm

1 stop23h 02m

$242

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Fri 1/23

2:15 pm-10:58 pm

2 stops9h 43m

Lambert-St Louis

Sun 1/25

9:57 am-9:56 pm

2 stops10h 59m

$301

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Tue 4/7

6:52 am-3:21 pm

1 stop9h 29m

Lambert-St Louis

Wed 4/8

8:30 am-4:15 pm

1 stop6h 45m

$301

OttawaKansas City

YOW - MCI

YOWMCI

Ottawa

Sat 12/13

7:30 pm-10:39 am

2 stops16h 09m

Kansas City

Mon 12/15

6:27 pm-1:36 pm

2 stops18h 09m

$301

OttawaKansas City

YOW - MCI

YOWMCI

Ottawa

Fri 12/12

6:20 am-10:39 am

1 stop5h 19m

Kansas City

Tue 12/16

6:00 am-9:56 pm

2 stops14h 56m

$301

OttawaKansas City

YOW - MCI

YOWMCI

Ottawa

Sun 4/5

6:00 am-11:22 am

1 stop6h 22m

Kansas City

Wed 4/8

6:00 am-4:15 pm

2 stops9h 15m

$301

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Sat 12/20

3:10 pm-11:33 pm

1 stop9h 23m

Lambert-St Louis

Mon 1/5

4:05 pm-11:08 pm

1 stop6h 03m

$307

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Sat 12/20

5:59 pm-11:33 pm

1 stop6h 34m

Lambert-St Louis

Mon 1/5

6:35 pm-2:30 pm

2 stops18h 55m

$354

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Tue 4/7

5:45 am-3:21 pm

2 stops10h 36m

Lambert-St Louis

Wed 4/8

4:05 pm-11:04 pm

1 stop5h 59m

$360

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Wed 2/4

10:20 am-3:29 pm

1 stop6h 09m

Lambert-St Louis

Thu 2/5

4:05 pm-11:08 pm

1 stop6h 03m

$425

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 17 results
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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 $253). Flying from Ottawa to Missouri in June is currently the most expensive (average of $485). 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.

How much does it cost to fly round-trip from Ottawa to Missouri?

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 $301, United Airlines can have you in Missouri from Ottawa in 9h 43m. The distance from Ottawa to Missouri is about 878 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 $253). Flying from Ottawa to Missouri in June is currently the most expensive (average of $485). 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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