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Cheap flights from Missouri to Ottawa from $168

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to Ottawa departing on 5/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Missouri to Ottawa

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
2:15 pm - 9:16 pm
STL
-
YOW
6h 01m
1 stop
Air Canada Logo
7:00 am - 12:06 pm
YOW
-
STL
6h 06m
1 stop
$303Air Canada
Mon, May 4 - Mon, May 11
Air Canada Logo
7:09 pm - 9:11 am
STL
-
YOW
13h 02m
2 stops
Air Canada Logo
2:00 pm - 8:09 pm
YOW
-
STL
7h 09m
1 stop
$348Air Canada
Mon, May 4 - Mon, May 11
Air Canada Logo
1:05 pm - 8:46 pm
STL
-
YOW
6h 41m
1 stop
Air Canada Logo
2:40 pm - 8:25 pm
YOW
-
STL
6h 45m
1 stop
$355Air Canada
Wed, May 13 - Sun, May 17
Air Canada Logo
7:05 am - 1:05 pm
STL
-
YOW
5h 00m
1 stop
Air Canada Logo
3:00 pm - 8:25 pm
YOW
-
STL
6h 25m
1 stop
$360Air Canada
Tue, May 12 - Mon, May 18
United Airlines Logo
9:23 am - 9:35 pm
STL
-
YOW
11h 12m
1 stop
United Airlines Logo
6:25 am - 12:11 pm
YOW
-
STL
6h 46m
1 stop
$363United Airlines
Mon, Jun 1 - Mon, Jun 8
United Airlines Logo
7:45 am - 9:35 pm
STL
-
YOW
12h 50m
1 stop
United Airlines Logo
6:00 am - 9:13 pm
YOW
-
STL
16h 13m
2 stops
$373United Airlines
Sun, May 10 - Wed, May 13
Air Canada Logo
1:05 pm - 8:46 pm
STL
-
YOW
6h 41m
1 stop
Air Canada Logo
2:40 pm - 8:25 pm
YOW
-
STL
6h 45m
1 stop
$376Air Canada
Wed, May 13 - Sun, May 17
Air Canada Logo
7:05 am - 1:05 pm
STL
-
YOW
5h 00m
1 stop
Air Canada Logo
2:40 pm - 8:25 pm
YOW
-
STL
6h 45m
1 stop
$381Air Canada
Tue, May 12 - Sat, May 16
Air Canada Logo
7:05 am - 1:05 pm
STL
-
YOW
5h 00m
1 stop
Air Canada Logo
2:00 pm - 8:09 pm
YOW
-
STL
7h 09m
1 stop
$386Air Canada
Tue, May 19 - Sun, May 24
United Airlines Logo
7:45 am - 11:54 pm
STL
-
YOW
15h 09m
2 stops
United Airlines Logo
5:50 pm - 11:57 pm
YOW
-
STL
7h 07m
1 stop
$394United Airlines
Sat, May 9 - Sat, May 16

Air Canada flights from Missouri to Ottawa

Our best Air Canada deals on Missouri to Ottawa flight tickets
Air Canada
May 4
STL2:15 pmLambert-St Louis
6h 01m
1 stop
YOW9:16 pmOttawa
May 11
YOW7:00 amOttawa
6h 06m
1 stop
STL12:06 pmLambert-St Louis
$303
Air Canada
May 4
STL7:09 pmLambert-St Louis
13h 02m
2 stops
YOW9:11 amOttawa
May 11
YOW2:00 pmOttawa
7h 09m
1 stop
STL8:09 pmLambert-St Louis
$348
Air Canada
May 13
STL1:05 pmLambert-St Louis
6h 41m
1 stop
YOW8:46 pmOttawa
May 17
YOW2:40 pmOttawa
6h 45m
1 stop
STL8:25 pmLambert-St Louis
$355

Delta flights from Missouri to Ottawa

Our best Delta deals on Missouri to Ottawa flight tickets
Delta
May 13
STL6:45 amLambert-St Louis
9h 50m
2 stops
YOW5:35 pmOttawa
May 17
YOW12:25 pmOttawa
11h 56m
2 stops
STL11:21 pmLambert-St Louis
$468
Delta
May 12
STL6:45 amLambert-St Louis
9h 50m
2 stops
YOW5:35 pmOttawa
May 18
YOW6:55 amOttawa
11h 35m
2 stops
STL5:30 pmLambert-St Louis
$476
Delta
May 12
STL6:45 amLambert-St Louis
9h 50m
2 stops
YOW5:35 pmOttawa
May 16
YOW12:25 pmOttawa
11h 56m
2 stops
STL11:21 pmLambert-St Louis
$489

momondo Fare Finder

 
Customize your flight search to find flights from Missouri to Ottawa 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, momondo users made 832,500 searches. Data last updated April 11, 2026.
Use the filters below to find and compare flights from Missouri to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Mon 5/4

2:15 pm-9:16 pm

1 stop6h 01m

Ottawa

Mon 5/11

7:00 am-12:06 pm

1 stop6h 06m

$303

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Mon 5/4

7:09 pm-9:11 am

2 stops13h 02m

Ottawa

Mon 5/11

2:00 pm-8:09 pm

1 stop7h 09m

$348

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Wed 5/13

1:05 pm-8:46 pm

1 stop6h 41m

Ottawa

Sun 5/17

2:40 pm-8:25 pm

1 stop6h 45m

$355
Quickest round-trip

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Tue 5/12

7:05 am-1:05 pm

1 stop5h 00m

Ottawa

Mon 5/18

3:00 pm-8:25 pm

1 stop6h 25m

$360

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Mon 6/1

9:23 am-9:35 pm

1 stop11h 12m

Ottawa

Mon 6/8

6:25 am-12:11 pm

1 stop6h 46m

$363

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Sun 5/10

7:45 am-9:35 pm

1 stop12h 50m

Ottawa

Wed 5/13

6:00 am-9:13 pm

2 stops16h 13m

$373

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Wed 5/13

1:05 pm-8:46 pm

1 stop6h 41m

Ottawa

Sun 5/17

2:40 pm-8:25 pm

1 stop6h 45m

$376

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Tue 5/12

7:05 am-1:05 pm

1 stop5h 00m

Ottawa

Sat 5/16

2:40 pm-8:25 pm

1 stop6h 45m

$381

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Tue 5/19

7:05 am-1:05 pm

1 stop5h 00m

Ottawa

Sun 5/24

2:00 pm-8:09 pm

1 stop7h 09m

$386

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Sat 5/9

7:45 am-11:54 pm

2 stops15h 09m

Ottawa

Sat 5/16

5:50 pm-11:57 pm

1 stop7h 07m

$394

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ottawa from

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

Can stopping save me money on Missouri to Ottawa flights?

You could potentially save up to 1% on your flight if you consider stops on a Missouri to Ottawa flight.

Cheap Missouri to Ottawa flight deals and tips

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

Fastest flight time

5h 00m

Direct flights

None
The fastest flight from Missouri to Ottawa takes 5h 00m
There are no direct flights from Missouri to Ottawa. There are no popular flight routes from Missouri to Ottawa.
Search flight deals

Frequently asked questions about flying from Missouri to Ottawa

  • 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?

  • 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 CanadaPriceFrom $139Free CancellationRating
7.1
10,916 reviews
Search Air Canada flights
United AirlinesPriceFrom $219Free CancellationRating
7.4
9,569 reviews
Search United Airlines flights

Traveling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Pembroke
Calabogie
Petawawa
Smiths Falls
Brockville
Perth
Prescott
Winchester
Wakefield

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.

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