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

United Airlines is the most popular carrier operating 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 July 2026, there is 1 operator 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 required for your trip to Missouri can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Missouri. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$205 Cheap Flights from Ottawa to Missouri in 2026

Discover deals from 900+ travel sites with momondo.

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.

6:00 am - 11:00 am

YOW

STL

6h 00m

1 stop

6:00 am - 1:11 pm

STL

YOW

6h 11m

1 stop

$339United Airlines

Wed, Nov 11 - Mon, Nov 23

6:25 am - 3:43 pm

YOW

STL

10h 18m

1 stop

1:29 pm - 9:35 pm

STL

YOW

7h 06m

1 stop

$341United Airlines

Thu, Oct 1 - Mon, Oct 5

2:00 pm - 12:06 pm

YOW

STL

23h 06m

2 stops

6:00 am - 2:09 pm

STL

YOW

7h 09m

1 stop

$342United Airlines

Wed, Nov 11 - Mon, Nov 23

2:35 pm - 6:41 pm

YOW

STL

5h 06m

1 stop

2:40 pm - 1:35 am

STL

YOW

9h 55m

1 stop

$383Air Canada

Thu, Oct 1 - Mon, Oct 5

2:35 pm - 6:41 pm

YOW

STL

5h 06m

1 stop

8:00 am - 10:10 pm

STL

YOW

13h 10m

2 stops

$401Air Canada

Thu, Oct 1 - Mon, Oct 5

6:55 am - 7:58 pm

YOW

STL

14h 03m

2 stops

2:30 pm - 12:20 am

STL

YOW

8h 50m

2 stops

$416Delta

Thu, Oct 1 - Mon, Oct 5

6:25 am - 3:43 pm

YOW

STL

10h 18m

1 stop

1:29 pm - 9:35 pm

STL

YOW

7h 06m

1 stop

$421United Airlines

Thu, Oct 1 - Mon, Oct 5

6:55 am - 7:58 pm

YOW

STL

14h 03m

2 stops

2:30 pm - 12:20 am

STL

YOW

8h 50m

2 stops

$438Delta

Thu, Oct 1 - Mon, Oct 5

3:10 pm - 9:51 pm

YOW

STL

7h 41m

1 stop

1:08 pm - 9:56 pm

STL

YOW

7h 48m

2 stops

$462United Airlines

Sat, Oct 31 - Wed, Nov 4

6:00 am - 2:17 pm

YOW

STL

9h 17m

2 stops

3:11 pm - 9:35 pm

STL

YOW

5h 24m

1 stop

$483Air Canada

Thu, Oct 1 - Mon, Oct 5

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United Airlines flights from Ottawa to Missouri

Our best United Airlines deals on Ottawa to Missouri flight tickets

United Airlines

Nov 11

YOW6:00 amOttawa

6h 00m

1 stop

STL11:00 amLambert-St Louis

Nov 23

STL6:00 amLambert-St Louis

6h 11m

1 stop

YOW1:11 pmOttawa

$339

United Airlines

Oct 1

YOW6:25 amOttawa

10h 18m

1 stop

STL3:43 pmLambert-St Louis

Oct 5

STL1:29 pmLambert-St Louis

7h 06m

1 stop

YOW9:35 pmOttawa

$341

United Airlines

Nov 11

YOW2:00 pmOttawa

23h 06m

2 stops

STL12:06 pmLambert-St Louis

Nov 23

STL6:00 amLambert-St Louis

7h 09m

1 stop

YOW2:09 pmOttawa

$342

Delta flights from Ottawa to Missouri

Our best Delta deals on Ottawa to Missouri flight tickets

Delta

Oct 1

YOW6:55 amOttawa

14h 03m

2 stops

STL7:58 pmLambert-St Louis

Oct 5

STL2:30 pmLambert-St Louis

8h 50m

2 stops

YOW12:20 amOttawa

$416

Delta

Oct 1

YOW6:55 amOttawa

14h 03m

2 stops

STL7:58 pmLambert-St Louis

Oct 5

STL2:30 pmLambert-St Louis

8h 50m

2 stops

YOW12:20 amOttawa

$438

Delta

Oct 1

YOW6:55 amOttawa

14h 03m

2 stops

STL7:58 pmLambert-St Louis

Oct 5

STL2:30 pmLambert-St Louis

8h 50m

2 stops

YOW12:20 amOttawa

$496

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Wed 11/11

6:00 am-11:00 am

1 stop6h 00m

Lambert-St Louis

Mon 11/23

6:00 am-1:11 pm

1 stop6h 11m

$339

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Thu 10/1

6:25 am-3:43 pm

1 stop10h 18m

Lambert-St Louis

Mon 10/5

1:29 pm-9:35 pm

1 stop7h 06m

$341

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Wed 11/11

2:00 pm-12:06 pm

2 stops23h 06m

Lambert-St Louis

Mon 11/23

6:00 am-2:09 pm

1 stop7h 09m

$342

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Thu 10/1

2:35 pm-6:41 pm

1 stop5h 06m

Lambert-St Louis

Mon 10/5

2:40 pm-1:35 am

1 stop9h 55m

$383

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Thu 10/1

2:35 pm-6:41 pm

1 stop5h 06m

Lambert-St Louis

Mon 10/5

8:00 am-10:10 pm

2 stops13h 10m

$401

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Thu 10/1

6:55 am-7:58 pm

2 stops14h 03m

Lambert-St Louis

Mon 10/5

2:30 pm-12:20 am

2 stops8h 50m

$416

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Thu 10/1

6:25 am-3:43 pm

1 stop10h 18m

Lambert-St Louis

Mon 10/5

1:29 pm-9:35 pm

1 stop7h 06m

$421

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Thu 10/1

6:55 am-7:58 pm

2 stops14h 03m

Lambert-St Louis

Mon 10/5

2:30 pm-12:20 am

2 stops8h 50m

$438

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Sat 10/31

3:10 pm-9:51 pm

1 stop7h 41m

Lambert-St Louis

Wed 11/4

1:08 pm-9:56 pm

2 stops7h 48m

$462

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Thu 10/1

6:00 am-2:17 pm

2 stops9h 17m

Lambert-St Louis

Mon 10/5

3:11 pm-9:35 pm

1 stop5h 24m

$483

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

What is the cheapest month to fly to Missouri?

In general, May is the cheapest month to fly from Ottawa to Missouri. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $285. If you aren’t able to travel to Missouri during the month of May, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $300.

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	6h 00m
Direct flights	None

The fastest flight from Ottawa to Missouri takes 6h 00m

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 July 2026, there is 1 operator 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 required for your trip to Missouri can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Missouri. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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 $285	Free Cancellation	Rating 7.1 11,321 reviews		Search Air Canada flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ottawa to Missouri. momondo saves you time and could save you money on your trip.

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 helps you find the best flight between Ottawa and Missouri by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Ottawa to Missouri flights. All you need is a valid email address and we will do the rest; it is that quick and easy.