How long does it take to fly to Ottawa?

Average flight duration from Missouri to Ottawa depends on which airport you fly into and out of. Flying from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport is 2h 30m on average, while flying from Kansas City to Montreal Pierre Elliott Trudeau Intl Airport is 5h 20m on average. Montreal Pierre Elliott Trudeau Intl Airport is the most popular airport in Ottawa.

What airlines fly to Ottawa?

Air Canada, Delta and United Airlines are the top three most popular airlines that fly to Ottawa from Missouri according to our data. Air Canada is the first choice among our users, with 31% of people opting to fly with this airline when traveling to Ottawa. Keep in mind that there are 5 different airlines that fly to Ottawa on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Missouri to Ottawa Airport refresh daily.

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

There are 2 operators available for flights from Missouri to Ottawa Airport as of August 2025.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Missouri to Ottawa Airport.

What documentation or ID do you need to fly to Ottawa Airport?

The necessary travel and health documents for your Ottawa Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$219 Cheap Flights from Missouri to Ottawa in 2025

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Missouri to Ottawa

Round-trip

One-way

Last minute

Cheap round-trip flights

10:35 am - 12:22 amSTL-YOW

12h 47m2 stops

6:00 am - 4:35 pmYOW-STL

11h 35m3 stops

$557

Find Deal

Thu, Sep 18 - Thu, Sep 25

9:50 am - 12:22 amSTL-YOW

13h 32m3 stops

6:00 am - 4:35 pmYOW-STL

11h 35m3 stops

$560

Find Deal

Thu, Sep 18 - Thu, Sep 25

9:50 am - 9:31 amSTL-YOW

22h 41m3 stops

7:00 am - 5:55 pmYOW-STL

11h 55m2 stops

$575

Find Deal

Fri, Oct 17 - Sat, Oct 25

10:35 am - 5:20 pmSTL-YOW

29h 45m1 stop

9:05 am - 11:59 pmYOW-STL

15h 54m2 stops

$577

Find Deal

Thu, Sep 18 - Thu, Sep 25

10:35 am - 12:22 amSTL-YOW

12h 47m2 stops

6:33 am - 4:35 pmYOW-STL

11h 02m2 stops

$583

Find Deal

Thu, Sep 18 - Thu, Sep 25

7:04 pm - 2:04 pmSTL-YOW

18h 00m1 stop

6:33 am - 3:44 pmYOW-STL

10h 11m1 stop

$621United Airlines

Find Deal

Tue, Sep 2 - Wed, Sep 10

7:04 pm - 2:04 pmSTL-YOW

18h 00m1 stop

5:15 am - 3:44 pmYOW-STL

11h 29m2 stops

$632United Airlines

Find Deal

Tue, Sep 2 - Wed, Sep 10

4:05 pm - 12:19 amSTL-YOW

7h 14m1 stop

2:40 pm - 7:57 pmYOW-STL

6h 17m1 stop

$728Air Canada

Find Deal

Thu, Sep 18 - Thu, Sep 25

5:56 am - 12:22 amMCI-YOW

17h 26m2 stops

5:15 pm - 11:12 pmYOW-MCI

30h 57m2 stops

$900WestJet

Find Deal

Thu, Oct 9 - Mon, Oct 13

3:59 pm - 12:22 amSTL-YOW

7h 23m2 stops

12:20 pm - 11:02 pmYOW-STL

11h 42m2 stops

$923Delta

Find Deal

Wed, Oct 22 - Fri, Oct 24

United Airlines flights from Missouri to Ottawa

Our best United Airlines deals on Missouri to Ottawa flight tickets

United Airlines

Sep 2

STL7:04 pmLambert-St Louis

18h 00m

1 stop

YOW2:04 pmOttawa

Sep 10

YOW6:33 amOttawa

10h 11m

1 stop

STL3:44 pmLambert-St Louis

$621

Find similar

United Airlines

Sep 2

STL7:04 pmLambert-St Louis

18h 00m

1 stop

YOW2:04 pmOttawa

Sep 10

YOW5:15 amOttawa

11h 29m

2 stops

STL3:44 pmLambert-St Louis

$632

Find similar

United Airlines

Oct 17

STL12:25 pmLambert-St Louis

8h 10m

1 stop

YOW9:35 pmOttawa

Oct 25

YOW6:33 amOttawa

10h 11m

1 stop

STL3:44 pmLambert-St Louis

$651

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Thu 9/18

10:35 am-12:22 am

2 stops12h 47m

Ottawa

Thu 9/25

6:00 am-4:35 pm

3 stops11h 35m

$557

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Thu 9/18

9:50 am-12:22 am

3 stops13h 32m

Ottawa

Thu 9/25

6:00 am-4:35 pm

3 stops11h 35m

$560

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Fri 10/17

9:50 am-9:31 am

3 stops22h 41m

Ottawa

Sat 10/25

7:00 am-5:55 pm

2 stops11h 55m

$575

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Thu 9/18

10:35 am-5:20 pm

1 stop29h 45m

Ottawa

Thu 9/25

9:05 am-11:59 pm

2 stops15h 54m

$577

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Thu 9/18

10:35 am-12:22 am

2 stops12h 47m

Ottawa

Thu 9/25

6:33 am-4:35 pm

2 stops11h 02m

$583

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Tue 9/2

7:04 pm-2:04 pm

1 stop18h 00m

Ottawa

Wed 9/10

6:33 am-3:44 pm

1 stop10h 11m

$621

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Tue 9/2

7:04 pm-2:04 pm

1 stop18h 00m

Ottawa

Wed 9/10

5:15 am-3:44 pm

2 stops11h 29m

$632

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Thu 9/18

4:05 pm-12:19 am

1 stop7h 14m

Ottawa

Thu 9/25

2:40 pm-7:57 pm

1 stop6h 17m

$728

Kansas CityOttawa

MCI - YOW

MCIYOW

Kansas City

Thu 10/9

5:56 am-12:22 am

2 stops17h 26m

Ottawa

Mon 10/13

5:15 pm-11:12 pm

2 stops30h 57m

$900

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Wed 10/22

3:59 pm-12:22 am

2 stops7h 23m

Ottawa

Fri 10/24

12:20 pm-11:02 pm

2 stops11h 42m

$923

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

How to get the cheapest flight ticket from Missouri to Ottawa

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

Other information

What is the cheapest day to depart on your flight to Ottawa?

The cheapest day to depart from Missouri to Ottawa is on a Saturday. Travelers who choose to depart for Ottawa on a Saturday will often find tickets for as low as $407. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Ottawa on Monday is $860.

What is the cheapest time of day to depart on your flight to Ottawa?

In the afternoon is the cheapest time of day to fly from Missouri to Ottawa when you can find flight prices for as low as $615. Flying to Ottawa in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $682 on average. Flights to Ottawa from Missouri in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

Cheap Missouri to Ottawa flight deals and tips

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

Best Price Found	$219
Fastest flight time	6h 08m
Direct flights	None
Airports in Ottawa	1 airport

The best one-way flight to Ottawa from Missouri in the past 72 hours is $219. The best round-trip flight deal from Missouri to Ottawa found on momondo in the last 72 hours is $557.

The fastest flight from Missouri to Ottawa takes 6h 08m

There are no direct flights from Missouri to Ottawa. Popular non-direct routes for this connection are Kansas City Airport - Ottawa Airport and Lambert-St Louis Airport - Ottawa Airport.

There is 1 airport near Ottawa: Ottawa (YOW)

Search flight deals

When did momondo last update prices for flights from Missouri to Ottawa Airport?
Prices for flights from Missouri to Ottawa Airport refresh daily.
How many operators does momondo search for flights from Missouri to Ottawa Airport?
There are 2 operators available for flights from Missouri to Ottawa Airport as of August 2025.
How old do you have to be to fly from Missouri to Ottawa Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Missouri to Ottawa Airport.
What documentation or ID do you need to fly to Ottawa Airport?
The necessary travel and health documents for your Ottawa Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Missouri to Ottawa

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

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom $330	Free Cancellation	Rating 7.1 9,879 reviews		Search Air Canada flights
United Airlines	PriceFrom $436	Free Cancellation	Rating 7.4 8,912 reviews		Search United Airlines flights

Gatineau

Smiths Falls

Calabogie

Brockville

Prescott

Pembroke

Winchester

Wakefield

Petawawa

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ottawa from Missouri.

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

Flights from Missouri to Ottawa with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Missouri to Ottawa.

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

Yes. momondo can track prices for Missouri to Ottawa flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.