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Cheap flights from Missouri to Ottawa from $155

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 4/11. 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.
Multiple Airlines Logo
10:00 am - 5:07 pm
STL
-
YOW
6h 07m
1 stop
Multiple Airlines Logo
3:10 pm - 11:57 pm
YOW
-
STL
9h 47m
1 stop
$354Multiple Airlines
Tue, Apr 7 - Tue, Apr 14
Air Canada Logo
1:00 pm - 8:51 pm
STL
-
YOW
6h 51m
1 stop
Air Canada Logo
2:25 pm - 8:05 pm
YOW
-
STL
6h 40m
1 stop
$358Air Canada
Thu, May 14 - Sun, May 17
Air Canada Logo
1:00 pm - 8:51 pm
STL
-
YOW
6h 51m
1 stop
Air Canada Logo
2:00 pm - 8:04 pm
YOW
-
STL
7h 04m
1 stop
$363Air Canada
Wed, May 13 - Mon, May 18
United Airlines Logo
6:15 am - 9:35 pm
MCI
-
YOW
14h 20m
1 stop
United Airlines Logo
10:44 am - 7:45 pm
YOW
-
MCI
10h 01m
1 stop
$366United Airlines
Mon, Apr 6 - Mon, Apr 13
United Airlines Logo
6:15 am - 9:35 pm
MCI
-
YOW
14h 20m
1 stop
United Airlines Logo
5:50 pm - 12:24 pm
YOW
-
MCI
19h 34m
2 stops
$376United Airlines
Mon, Apr 6 - Mon, Apr 13
United Airlines Logo
9:23 am - 9:35 pm
STL
-
YOW
11h 12m
1 stop
United Airlines Logo
6:05 am - 3:46 pm
YOW
-
STL
10h 41m
2 stops
$376United Airlines
Sat, May 23 - Sat, May 30
Air Canada Logo
7:45 am - 6:55 pm
STL
-
YOW
10h 10m
2 stops
Air Canada Logo
10:15 am - 3:24 pm
YOW
-
STL
6h 09m
1 stop
$378Air Canada
Wed, Apr 8 - Wed, Apr 15
Multiple Airlines Logo
7:45 am - 1:59 pm
STL
-
YOW
5h 14m
1 stop
Multiple Airlines Logo
10:00 am - 8:54 pm
YOW
-
STL
11h 54m
2 stops
$384Multiple Airlines
Tue, Apr 7 - Tue, Apr 14
Air Canada Logo
1:15 pm - 8:50 pm
STL
-
YOW
6h 35m
1 stop
Air Canada Logo
10:00 am - 2:02 pm
YOW
-
STL
5h 02m
1 stop
$393Air Canada
Mon, Jun 29 - Sat, Jul 11
Multiple Airlines Logo
12:15 pm - 3:15 pm
MCI
-
YOW
26h 00m
1 stop
Multiple Airlines Logo
2:20 pm - 11:57 pm
YOW
-
MCI
10h 37m
2 stops
$420Multiple Airlines
Sun, Jun 7 - Tue, Jun 16

United Airlines flights from Missouri to Ottawa

Our best United Airlines deals on Missouri to Ottawa flight tickets
United Airlines
Apr 6
MCI6:15 amKansas City
14h 20m
1 stop
YOW9:35 pmOttawa
Apr 13
YOW10:44 amOttawa
10h 01m
1 stop
MCI7:45 pmKansas City
$366
United Airlines
Apr 6
MCI6:15 amKansas City
14h 20m
1 stop
YOW9:35 pmOttawa
Apr 13
YOW5:50 pmOttawa
19h 34m
2 stops
MCI12:24 pmKansas City
$376
United Airlines
Jul 7
MCI6:00 amKansas City
14h 35m
1 stop
YOW9:35 pmOttawa
Jul 11
YOW5:50 pmOttawa
7h 09m
1 stop
MCI11:59 pmKansas City
$428

American Airlines flights from Missouri to Ottawa

Our best American Airlines deals on Missouri to Ottawa flight tickets
American Airlines
Mar 7
STL8:00 amLambert-St Louis
15h 38m
2 stops
YOW12:38 amOttawa
Mar 11
YOW6:45 amOttawa
17h 59m
2 stops
STL11:44 pmLambert-St Louis
$567
American Airlines
Aug 13
STL6:06 amLambert-St Louis
7h 49m
2 stops
YOW2:55 pmOttawa
Aug 16
YOW7:00 amOttawa
17h 51m
2 stops
STL11:51 pmLambert-St Louis
$621
American Airlines
May 13
STL7:00 amLambert-St Louis
12h 00m
3 stops
YOW8:00 pmOttawa
May 18
YOW7:00 amOttawa
17h 56m
2 stops
STL11:56 pmLambert-St Louis
$773

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 February 23, 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

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Tue 4/7

10:00 am-5:07 pm

1 stop6h 07m

Ottawa

Tue 4/14

3:10 pm-11:57 pm

1 stop9h 47m

$354

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Thu 5/14

1:00 pm-8:51 pm

1 stop6h 51m

Ottawa

Sun 5/17

2:25 pm-8:05 pm

1 stop6h 40m

$358

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Wed 5/13

1:00 pm-8:51 pm

1 stop6h 51m

Ottawa

Mon 5/18

2:00 pm-8:04 pm

1 stop7h 04m

$363

Kansas CityOttawa

MCI - YOW

MCIYOW

Kansas City

Mon 4/6

6:15 am-9:35 pm

1 stop14h 20m

Ottawa

Mon 4/13

10:44 am-7:45 pm

1 stop10h 01m

$366

Kansas CityOttawa

MCI - YOW

MCIYOW

Kansas City

Mon 4/6

6:15 am-9:35 pm

1 stop14h 20m

Ottawa

Mon 4/13

5:50 pm-12:24 pm

2 stops19h 34m

$376

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Sat 5/23

9:23 am-9:35 pm

1 stop11h 12m

Ottawa

Sat 5/30

6:05 am-3:46 pm

2 stops10h 41m

$376

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Wed 4/8

7:45 am-6:55 pm

2 stops10h 10m

Ottawa

Wed 4/15

10:15 am-3:24 pm

1 stop6h 09m

$378

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Tue 4/7

7:45 am-1:59 pm

1 stop5h 14m

Ottawa

Tue 4/14

10:00 am-8:54 pm

2 stops11h 54m

$384

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Mon 6/29

1:15 pm-8:50 pm

1 stop6h 35m

Ottawa

Sat 7/11

10:00 am-2:02 pm

1 stop5h 02m

$393

Kansas CityOttawa

MCI - YOW

MCIYOW

Kansas City

Sun 6/7

12:15 pm-3:15 pm

1 stop26h 00m

Ottawa

Tue 6/16

2:20 pm-11:57 pm

2 stops10h 37m

$420

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 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

4h 57m

Direct flights

None
The fastest flight from Missouri to Ottawa takes 4h 57m
There are no direct flights from Missouri to Ottawa. There are no popular flight routes from Missouri to Ottawa.
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?

  • 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
10,739 reviews
Search Air Canada flights
United AirlinesPriceFrom $359Free CancellationRating
7.4
9,342 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
Brockville
Smiths Falls
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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