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Cheap flights from Ottawa to Missouri from C$ 258

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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — STL
2 Jun — 9 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ottawa to Missouri

Enter your travel dates to find the best prices.

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 3 May 2026.

Tue 2/66:00 a.m.
YOW
-
STL
2 stops10h 46m
United Airlines
Wed 3/66:00 a.m.
STL
-
YOW
1 stop15h 05m
United Airlines
Deal found 28/4C$ 435
Sat 23/52:40 p.m.
YOW
-
STL
1 stop6h 45m
Air Canada
Sun 24/57:05 a.m.
STL
-
YOW
1 stop5h 00m
Air Canada
Deal found 30/4C$ 439
Fri 24/76:25 a.m.
YOW
-
STL
1 stop10h 21m
United Airlines
Sat 8/81:13 p.m.
STL
-
YOW
1 stop7h 22m
United Airlines
Deal found 29/4C$ 446
Thu 24/910:00 a.m.
YOW
-
STL
1 stop5h 00m
Air Canada
Sun 27/912:10 p.m.
STL
-
YOW
1 stop7h 40m
Air Canada
Deal found 2/5C$ 499
Wed 12/86:00 a.m.
YOW
-
STL
2 stops10h 38m
United Airlines
Wed 19/85:00 a.m.
STL
-
YOW
2 stops8h 11m
United Airlines
Deal found 30/4C$ 518
Fri 12/65:05 a.m.
YOW
-
STL
2 stops11h 41m
United Airlines
Fri 19/62:15 p.m.
STL
-
YOW
1 stop6h 00m
United Airlines
Deal found 28/4C$ 533
Wed 22/75:50 p.m.
YOW
-
MCI
1 stop7h 09m
United Airlines
Sun 26/76:00 a.m.
MCI
-
YOW
1 stop6h 59m
United Airlines
Deal found 28/4C$ 590
Thu 15/106:00 p.m.
YOW
-
MCI
1 stop6h 52m
United Airlines
Tue 20/106:00 a.m.
MCI
-
YOW
1 stop10h 21m
United Airlines
Deal found 29/4C$ 601
Wed 1/710:44 a.m.
YOW
-
MCI
1 stop6h 16m
United Airlines
Sat 11/73:16 p.m.
MCI
-
YOW
1 stop5h 19m
United Airlines
Deal found 30/4C$ 609
Wed 12/86:00 p.m.
YOW
-
MCI
1 stop6h 57m
United Airlines
Mon 17/83:14 p.m.
MCI
-
YOW
1 stop5h 21m
United Airlines
Deal found 29/4C$ 610
Fri 29/55:50 p.m.
YOW
-
MCI
1 stop7h 09m
United Airlines
Mon 1/65:10 p.m.
MCI
-
YOW
2 stops15h 01m
United Airlines
Deal found 1/5C$ 633
Sat 24/106:52 a.m.
YOW
-
MCI
1 stop8h 39m
United Airlines
Mon 26/107:55 p.m.
MCI
-
YOW
1 stop13h 44m
United Airlines
Deal found 2/5C$ 636

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 3 May 2026.

Round-trip from

C$ 435

One-way from

C$ 258

Popular in

March

Cheapest in

April

Average price

C$ 617
United Airlines
  • United Airlines
  • 2/6-3/6
  • 2 total stops
  • 16h 24m total
  • Ottawa to Missouri
Search Deals
United Airlines
  • United Airlines
  • 12/6
  • 1 total stop
  • 15h 51m total
  • Ottawa to Missouri
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (C$ 2 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 629,999 searches. Data last updated 3 May 2026.
Use the filters below to find and compare flights from Ottawa to Missouri that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Tue 2/6

6:00 a.m.-3:46 p.m.

2 stops10h 46m

Lambert-St Louis

Wed 3/6

6:00 a.m.-10:05 p.m.

1 stop15h 05m

C$ 435

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Fri 24/7

6:25 a.m.-3:46 p.m.

1 stop10h 21m

Lambert-St Louis

Sat 8/8

1:13 p.m.-9:35 p.m.

1 stop7h 22m

C$ 435

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Fri 12/6

7:00 a.m.-12:06 p.m.

1 stop6h 06m

Lambert-St Louis

Fri 19/6

2:15 p.m.-9:15 p.m.

1 stop6h 00m

C$ 446

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Wed 12/8

6:00 a.m.-9:22 p.m.

2 stops16h 22m

Lambert-St Louis

Wed 19/8

6:00 a.m.-1:59 p.m.

1 stop6h 59m

C$ 446

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Sat 23/5

2:40 p.m.-8:25 p.m.

1 stop6h 45m

Lambert-St Louis

Sun 24/5

7:05 a.m.-1:05 p.m.

1 stop5h 00m

C$ 473

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Sat 6/6

6:05 a.m.-3:46 p.m.

2 stops10h 41m

Lambert-St Louis

Sat 20/6

1:13 p.m.-11:54 p.m.

2 stops9h 41m

C$ 480

OttawaKansas City

YOW - MCI

YOWMCI

Ottawa

Wed 22/7

3:10 p.m.-11:59 p.m.

1 stop9h 49m

Kansas City

Sun 26/7

7:53 a.m.-9:35 p.m.

1 stop12h 42m

C$ 599

OttawaKansas City

YOW - MCI

YOWMCI

Ottawa

Thu 15/10

6:00 p.m.-11:52 p.m.

1 stop6h 52m

Kansas City

Tue 20/10

6:00 a.m.-5:21 p.m.

1 stop10h 21m

C$ 601
Quickest round-trip

OttawaKansas City

YOW - MCI

YOWMCI

Ottawa

Wed 1/7

10:44 a.m.-4:00 p.m.

1 stop6h 16m

Kansas City

Sat 11/7

3:16 p.m.-9:35 p.m.

1 stop5h 19m

C$ 609

OttawaKansas City

YOW - MCI

YOWMCI

Ottawa

Wed 22/7

5:20 p.m.-11:18 p.m.

2 stops6h 58m

Kansas City

Sun 26/7

6:00 a.m.-5:07 p.m.

1 stop10h 07m

C$ 673

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/4

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

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, May is the cheapest month in which you can book a flight from Ottawa to Missouri (average of C$ 315). Flying from Ottawa to Missouri in July is currently the most expensive (average of C$ 786). 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?

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 3 May 2026.
Get a feel of what it's like to fly with United Airlines and Air Canada from Ottawa to Missouri by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,681 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,681 reviews
United Airlines
7.4
Good
9,681 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
Air Canada
7.1
Good
10,993 reviews
United Airlines
7.4
Good
9,681 reviews
Check prices

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

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?

    If you book a flight to Missouri from Ottawa, you will be flying from Ottawa, which is the city’s only airport. Ottawa (YOW) is located 10.6 km from the centre of Ottawa.

  • How long is the flight from Ottawa to Missouri?

    United Airlines can get you from Ottawa to Missouri in just under 10h 46m. Your travel time can differ by up to . The distance between Ottawa and Missouri is about 1413 km.

  • 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, May is the cheapest month in which you can book a flight from Ottawa to Missouri (average of C$ 315). Flying from Ottawa to Missouri in July is currently the most expensive (average of C$ 786). 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

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Top 2 airlines flying from Ottawa to Missouri

Discover the top 2 airlines 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 629,999 searches. Data last updated 3 May 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 391AverageC$ 650FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 400AverageC$ 900FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ottawa to Missouri?

Deals for Ottawa to Missouri flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Ottawa to Missouri?

Millions of users choose and trust Cheapflights to book the best flight deals from Ottawa to Missouri for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Ottawa to Missouri with no change fees?

Need flexible booking options for your flight to Missouri from Ottawa? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Ottawa to Missouri become cheaper?

Yes! Start tracking prices for Ottawa to Missouri flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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