What is the cheapest airline that flies from Ottawa to Missouri?

Air Canada, United Airlines, and Delta are the most popular carriers operating from Ottawa to Missouri

Which airlines fly to Missouri?

United Airlines, WestJet and Air Canada are the top three most popular airlines that fly to Missouri from Ottawa according to our data. United Airlines is the first choice among our users, with 42% of people opting to fly with this airline when travelling to Missouri. Keep in mind that there are 3 different airlines that fly to Missouri on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Ottawa Airport to Missouri?

Prices for flights from Ottawa Airport to Missouri were last updated today.

How many operators does momondo search for flights from Ottawa Airport to Missouri?

As of April 2026, there are 2 operators available to choose from for flights from Ottawa Airport to Missouri.

How old do you have to be to fly from Ottawa Airport to Missouri?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ottawa Airport to Missouri.

What documentation or ID do you need to fly to Missouri?

The travel and health documents you'll need for your trip to Missouri may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Missouri. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

C$ 238 Cheap Flights from Ottawa to Missouri in 2026

1 adult

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Find the cheapest flights from Ottawa to Missouri

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:00 p.m. - 8:25 p.m.

YOW

STL

6h 25m

1 stop

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

STL

YOW

5h 00m

1 stop

C$ 369Air Canada

Mon, 18 May - Sun, 24 May

2:35 p.m. - 8:25 p.m.

YOW

STL

6h 50m

1 stop

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

STL

YOW

5h 00m

1 stop

C$ 393Air Canada

Sat, 16 May - Sat, 23 May

10:44 a.m. - 9:16 p.m.

YOW

STL

11h 32m

1 stop

9:23 a.m. - 9:35 p.m.

STL

YOW

11h 12m

1 stop

C$ 401United Airlines

Wed, 3 Jun - Sat, 6 Jun

5:20 p.m. - 9:16 p.m.

YOW

STL

4h 56m

1 stop

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

STL

YOW

7h 22m

1 stop

C$ 403United Airlines

Tue, 2 Jun - Fri, 5 Jun

9:55 a.m. - 3:46 p.m.

YOW

STL

6h 51m

2 stops

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

STL

YOW

7h 22m

1 stop

C$ 475Air Canada

Wed, 3 Jun - Sat, 6 Jun

9:55 a.m. - 3:46 p.m.

YOW

STL

6h 51m

2 stops

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

STL

YOW

7h 22m

1 stop

C$ 476Air Canada

Wed, 3 Jun - Sat, 6 Jun

9:55 a.m. - 3:46 p.m.

YOW

STL

6h 51m

2 stops

5:41 p.m. - 1:36 a.m.

STL

YOW

6h 55m

2 stops

C$ 486Air Canada

Wed, 3 Jun - Sat, 6 Jun

9:55 a.m. - 3:46 p.m.

YOW

STL

6h 51m

2 stops

5:41 p.m. - 1:36 a.m.

STL

YOW

6h 55m

2 stops

C$ 488Air Canada

Wed, 3 Jun - Sat, 6 Jun

3:00 p.m. - 8:25 p.m.

YOW

STL

6h 25m

1 stop

6:00 a.m. - 11:54 p.m.

STL

YOW

16h 54m

2 stops

C$ 493Air Canada

Mon, 18 May - Sun, 24 May

12:00 p.m. - 9:13 p.m.

YOW

STL

10h 13m

2 stops

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

STL

YOW

5h 00m

1 stop

C$ 497United Airlines

Sat, 16 May - Sat, 23 May

Air Canada flights from Ottawa to Missouri

Our best Air Canada deals on Ottawa to Missouri flight tickets

Air Canada

18 May

YOW3:00 p.m.Ottawa

6h 25m

1 stop

STL8:25 p.m.Lambert-St Louis

24 May

STL7:05 a.m.Lambert-St Louis

5h 00m

1 stop

YOW1:05 p.m.Ottawa

C$ 369

Air Canada

16 May

YOW2:35 p.m.Ottawa

6h 50m

1 stop

STL8:25 p.m.Lambert-St Louis

23 May

STL7:05 a.m.Lambert-St Louis

5h 00m

1 stop

YOW1:05 p.m.Ottawa

C$ 393

Air Canada

3 Jun

YOW9:55 a.m.Ottawa

6h 51m

2 stops

STL3:46 p.m.Lambert-St Louis

6 Jun

STL1:13 p.m.Lambert-St Louis

7h 22m

1 stop

YOW9:35 p.m.Ottawa

C$ 475

United Airlines flights from Ottawa to Missouri

Our best United Airlines deals on Ottawa to Missouri flight tickets

United Airlines

3 Jun

YOW10:44 a.m.Ottawa

11h 32m

1 stop

STL9:16 p.m.Lambert-St Louis

6 Jun

STL9:23 a.m.Lambert-St Louis

11h 12m

1 stop

YOW9:35 p.m.Ottawa

C$ 401

United Airlines

2 Jun

YOW5:20 p.m.Ottawa

4h 56m

1 stop

STL9:16 p.m.Lambert-St Louis

5 Jun

STL1:13 p.m.Lambert-St Louis

7h 22m

1 stop

YOW9:35 p.m.Ottawa

C$ 403

United Airlines

16 May

YOW12:00 p.m.Ottawa

10h 13m

2 stops

STL9:13 p.m.Lambert-St Louis

23 May

STL7:05 a.m.Lambert-St Louis

5h 00m

1 stop

YOW1:05 p.m.Ottawa

C$ 497

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Mon 18/5

3:00 p.m.-8:25 p.m.

1 stop6h 25m

Lambert-St Louis

Sun 24/5

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

1 stop5h 00m

C$ 369

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Sat 16/5

2:35 p.m.-8:25 p.m.

1 stop6h 50m

Lambert-St Louis

Sat 23/5

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

1 stop5h 00m

C$ 393

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Wed 3/6

10:44 a.m.-9:16 p.m.

1 stop11h 32m

Lambert-St Louis

Sat 6/6

9:23 a.m.-9:35 p.m.

1 stop11h 12m

C$ 401

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Tue 2/6

5:20 p.m.-9:16 p.m.

1 stop4h 56m

Lambert-St Louis

Fri 5/6

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

1 stop7h 22m

C$ 403

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Wed 3/6

9:55 a.m.-3:46 p.m.

2 stops6h 51m

Lambert-St Louis

Sat 6/6

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

1 stop7h 22m

C$ 475

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Wed 3/6

9:55 a.m.-3:46 p.m.

2 stops6h 51m

Lambert-St Louis

Sat 6/6

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

1 stop7h 22m

C$ 476

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Wed 3/6

9:55 a.m.-3:46 p.m.

2 stops6h 51m

Lambert-St Louis

Sat 6/6

5:41 p.m.-1:36 a.m.

2 stops6h 55m

C$ 486

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Wed 3/6

9:55 a.m.-3:46 p.m.

2 stops6h 51m

Lambert-St Louis

Sat 6/6

5:41 p.m.-1:36 a.m.

2 stops6h 55m

C$ 488

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Mon 18/5

3:00 p.m.-8:25 p.m.

1 stop6h 25m

Lambert-St Louis

Sun 24/5

6:00 a.m.-11:54 p.m.

2 stops16h 54m

C$ 493

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Sat 16/5

12:00 p.m.-9:13 p.m.

2 stops10h 13m

Lambert-St Louis

Sat 23/5

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

1 stop5h 00m

C$ 497

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ottawa to Missouri

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Can stopping save me money on Ottawa to Missouri flights?

You could potentially save up to 14% on your flight if you consider stops on a Ottawa to Missouri flight.

Cheap Ottawa to Missouri flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ottawa to Missouri

Fastest flight time	4h 56m
Direct flights	None

The fastest flight from Ottawa to Missouri takes 4h 56m

There are no direct flights from Ottawa to Missouri. There are no popular flight routes from Ottawa to Missouri.

Search flight deals

Frequently asked questions about flying from Ottawa to Missouri

When did momondo last update prices for flights from Ottawa Airport to Missouri?
Prices for flights from Ottawa Airport to Missouri were last updated today.
How many operators does momondo search for flights from Ottawa Airport to Missouri?
As of April 2026, there are 2 operators available to choose from for flights from Ottawa Airport to Missouri.
How old do you have to be to fly from Ottawa Airport to Missouri?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ottawa Airport to Missouri.
What documentation or ID do you need to fly to Missouri?
The travel and health documents you'll need for your trip to Missouri may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Missouri. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Ottawa to Missouri

Compare and see reviews for airlines that fly from Ottawa to Missouri with momondo

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom C$ 410	Free Cancellation	Rating 7.1 10,890 reviews		Search Air Canada flights
United Airlines	PriceFrom C$ 418	Free Cancellation	Rating 7.4 9,541 reviews		Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Ottawa to Missouri?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ottawa to Missouri . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ottawa to Missouri with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Missouri from Ottawa with this policy.

How can momondo help me find flights from Ottawa to Missouri?

momondo provides multiple filters to help you find the best flight to Missouri from Ottawa. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Ottawa to Missouri right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ottawa to Missouri now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Missouri and let you know when they change.