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

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

Which airlines fly to Missouri?

United Airlines, Air Canada and WestJet 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 40% 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 May 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$ 370 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

Cheap round-trip flights

Enter your travel dates to find the best prices.

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

YOW

STL

10h 21m

1 stop

5:29 p.m. - 10:03 a.m.

STL

YOW

15h 34m

2 stops

C$ 481United Airlines

Thu, 11 Jun - Mon, 15 Jun

6:25 a.m. - 12:11 p.m.

YOW

STL

6h 46m

1 stop

6:00 a.m. - 9:35 p.m.

STL

YOW

14h 35m

1 stop

C$ 482United Airlines

Thu, 9 Jul - Sat, 11 Jul

2:35 p.m. - 6:42 p.m.

YOW

STL

5h 07m

1 stop

8:55 a.m. - 3:10 p.m.

STL

YOW

5h 15m

1 stop

C$ 489Air Canada

Tue, 25 Aug - Sat, 29 Aug

7:00 a.m. - 12:21 p.m.

YOW

STL

6h 21m

1 stop

1:20 p.m. - 9:11 p.m.

STL

YOW

6h 51m

1 stop

C$ 491Air Canada

Fri, 19 Jun - Mon, 22 Jun

9:00 a.m. - 2:02 p.m.

YOW

STL

6h 02m

1 stop

8:55 a.m. - 3:10 p.m.

STL

YOW

5h 15m

1 stop

C$ 497Air Canada

Sun, 23 Aug - Sun, 30 Aug

10:00 a.m. - 2:02 p.m.

YOW

STL

5h 02m

1 stop

8:55 a.m. - 5:10 p.m.

STL

YOW

7h 15m

1 stop

C$ 518Air Canada

Thu, 13 Aug - Sun, 16 Aug

2:35 p.m. - 6:42 p.m.

YOW

STL

5h 07m

1 stop

8:55 a.m. - 12:45 a.m.

STL

YOW

14h 50m

1 stop

C$ 542Air Canada

Sat, 22 Aug - Mon, 31 Aug

9:00 a.m. - 2:02 p.m.

YOW

STL

6h 02m

1 stop

8:55 a.m. - 12:45 a.m.

STL

YOW

14h 50m

1 stop

C$ 549Air Canada

Sun, 23 Aug - Tue, 1 Sep

2:35 p.m. - 6:42 p.m.

YOW

STL

5h 07m

1 stop

8:00 a.m. - 7:52 p.m.

STL

YOW

10h 52m

2 stops

C$ 564Air Canada

Sat, 22 Aug - Mon, 31 Aug

2:52 p.m. - 10:00 p.m.

YOW

STL

8h 08m

2 stops

8:00 a.m. - 7:52 p.m.

STL

YOW

10h 52m

2 stops

C$ 567Air Canada

Tue, 25 Aug - Sat, 29 Aug

United Airlines flights from Ottawa to Missouri

Our best United Airlines deals on Ottawa to Missouri flight tickets

United Airlines

11 Jun

YOW6:25 a.m.Ottawa

10h 21m

1 stop

STL3:46 p.m.Lambert-St Louis

15 Jun

STL6:00 a.m.Lambert-St Louis

15h 05m

1 stop

YOW10:05 p.m.Ottawa

C$ 481

United Airlines

9 Jul

YOW6:25 a.m.Ottawa

6h 46m

1 stop

STL12:11 p.m.Lambert-St Louis

11 Jul

STL6:00 a.m.Lambert-St Louis

14h 35m

1 stop

YOW9:35 p.m.Ottawa

C$ 482

United Airlines

16 Jun

YOW6:00 a.m.Ottawa

10h 46m

2 stops

STL3:46 p.m.Lambert-St Louis

23 Jun

STL9:14 a.m.Lambert-St Louis

11h 51m

2 stops

YOW10:05 p.m.Ottawa

C$ 568

American Airlines flights from Ottawa to Missouri

Our best American Airlines deals on Ottawa to Missouri flight tickets

American Airlines

24 May

YOW8:40 a.m.Ottawa

12h 50m

3 stops

STL8:30 p.m.Lambert-St Louis

2 Jun

STL5:40 p.m.Lambert-St Louis

20h 15m

2 stops

YOW2:55 p.m.Ottawa

C$ 1,351

American Airlines

30 May

YOW7:00 a.m.Ottawa

12h 55m

3 stops

MCI6:55 p.m.Kansas City

2 Jun

MCI4:07 p.m.Kansas City

26h 58m

2 stops

YOW8:05 p.m.Ottawa

C$ 1,490

American Airlines

30 May

YOW7:00 a.m.Ottawa

12h 55m

3 stops

MCI6:55 p.m.Kansas City

2 Jun

MCI5:30 a.m.Kansas City

13h 35m

3 stops

YOW8:05 p.m.Ottawa

C$ 1,521

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Thu 11/6

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

1 stop10h 21m

Lambert-St Louis

Mon 15/6

5:29 p.m.-10:03 a.m.

2 stops15h 34m

C$ 481

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Thu 9/7

6:25 a.m.-12:11 p.m.

1 stop6h 46m

Lambert-St Louis

Sat 11/7

6:00 a.m.-9:35 p.m.

1 stop14h 35m

C$ 482

Quickest round-trip

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Tue 25/8

2:35 p.m.-6:42 p.m.

1 stop5h 07m

Lambert-St Louis

Sat 29/8

8:55 a.m.-3:10 p.m.

1 stop5h 15m

C$ 489

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Fri 19/6

7:00 a.m.-12:21 p.m.

1 stop6h 21m

Lambert-St Louis

Mon 22/6

1:20 p.m.-9:11 p.m.

1 stop6h 51m

C$ 491

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Sun 23/8

9:00 a.m.-2:02 p.m.

1 stop6h 02m

Lambert-St Louis

Sun 30/8

8:55 a.m.-3:10 p.m.

1 stop5h 15m

C$ 497

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Thu 13/8

10:00 a.m.-2:02 p.m.

1 stop5h 02m

Lambert-St Louis

Sun 16/8

8:55 a.m.-5:10 p.m.

1 stop7h 15m

C$ 518

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Sat 22/8

2:35 p.m.-6:42 p.m.

1 stop5h 07m

Lambert-St Louis

Mon 31/8

8:55 a.m.-12:45 a.m.

1 stop14h 50m

C$ 542

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Sun 23/8

9:00 a.m.-2:02 p.m.

1 stop6h 02m

Lambert-St Louis

Tue 1/9

8:55 a.m.-12:45 a.m.

1 stop14h 50m

C$ 549

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Sat 22/8

2:35 p.m.-6:42 p.m.

1 stop5h 07m

Lambert-St Louis

Mon 31/8

8:00 a.m.-7:52 p.m.

2 stops10h 52m

C$ 564

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Tue 25/8

2:52 p.m.-10:00 p.m.

2 stops8h 08m

Lambert-St Louis

Sat 29/8

8:00 a.m.-7:52 p.m.

2 stops10h 52m

C$ 567

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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

What is the cheapest month to fly to Missouri?

The month of May is, on average, the cheapest month to fly to Missouri from Ottawa, with most prices found around C$ 394. If you are unable to visit Missouri during the month of May, then departing from Ottawa during the month December is also very affordable. Most momondo users find prices during this month for around C$ 415.

Can stopping save me money on Ottawa to Missouri flights?

You could potentially save up to 6% 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	5h 04m
Direct flights	None

The fastest flight from Ottawa to Missouri takes 5h 04m

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 May 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
United Airlines	PriceFrom C$ 398	Free Cancellation	Rating 7.4 9,749 reviews		Search United Airlines flights
Air Canada	PriceFrom C$ 406	Free Cancellation	Rating 7.1 11,078 reviews		Search Air Canada 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.