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Cheap flights from Missouri to Ottawa from $206

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 9/14. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Missouri to Ottawa

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:19 pm - 2:33 pm-
20h 14m
Multiple Airlines Logo
7:00 am - 5:54 pm-
11h 54m
$437Multiple Airlines
Thu, Sep 17 - Thu, Sep 24
Multiple Airlines Logo
5:02 pm - 5:23 pm-
23h 21m
Multiple Airlines Logo
7:00 am - 4:11 pm-
10h 11m
$539Multiple Airlines
Sat, Aug 29 - Sat, Sep 5
Multiple Airlines Logo
6:17 pm - 4:20 pm-
21h 03m
Multiple Airlines Logo
7:00 am - 3:28 pm-
9h 28m
$581Multiple Airlines
Fri, Aug 28 - Fri, Sep 4
United Airlines Logo
7:25 am - 1:59 pm-
5h 34m
United Airlines Logo
6:25 am - 10:12 am-
4h 47m
$591United Airlines
Fri, Aug 28 - Fri, Sep 4
Multiple Airlines Logo
7:30 am - 10:35 pm-
14h 05m
Multiple Airlines Logo
10:00 am - 2:00 pm-
5h 00m
$591Multiple Airlines
Fri, Oct 16 - Sun, Oct 18
Air Canada Logo
12:10 pm - 7:45 pm-
6h 35m
Air Canada Logo
2:35 pm - 6:41 pm-
5h 06m
$597Air Canada
Sat, Oct 10 - Mon, Oct 12
Air Canada Logo
8:55 am - 3:10 pm-
5h 15m
Air Canada Logo
2:40 pm - 6:42 pm-
5h 02m
$602Air Canada
Tue, Sep 1 - Mon, Sep 7
Air Canada Logo
8:55 am - 3:10 pm-
5h 15m
Air Canada Logo
2:45 pm - 6:41 pm-
4h 56m
$602Air Canada
Fri, Sep 11 - Tue, Sep 15
United Airlines Logo
8:00 am - 5:16 pm-
8h 16m
United Airlines Logo
6:00 am - 9:39 am-
4h 39m
$605United Airlines
Fri, Sep 11 - Tue, Sep 15
United Airlines Logo
9:40 am - 9:35 pm-
10h 55m
United Airlines Logo
3:10 pm - 8:47 pm-
6h 37m
$605United Airlines
Fri, Sep 11 - Tue, Sep 15

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WestJet flights from Missouri to Ottawa

Our best WestJet deals on Missouri to Ottawa flight tickets
WestJet
Sep 2
STL12:52 pmLambert-St Louis
15h 43m
2 stops
YOW5:35 amOttawa
Sep 12
YOW12:25 pmOttawa
22h 58m
2 stops
STL10:23 amLambert-St Louis
$772
WestJet
Jan 19
STL3:40 pmLambert-St Louis
31h 05m
2 stops
YOW11:45 pmOttawa
Jan 21
YOW5:40 amOttawa
16h 11m
2 stops
STL8:51 pmLambert-St Louis
$792
WestJet
Sep 1
MCI7:00 amKansas City
11h 20m
2 stops
YOW7:20 pmOttawa
Sep 5
YOW6:55 amOttawa
7h 32m
2 stops
MCI1:27 pmKansas City
$1,127

United Airlines flights from Missouri to Ottawa

Our best United Airlines deals on Missouri to Ottawa flight tickets
United Airlines
Aug 28
STL7:25 amLambert-St Louis
5h 34m
1 stop
YOW1:59 pmOttawa
Sep 4
YOW6:25 amOttawa
4h 47m
1 stop
STL10:12 amLambert-St Louis
$591
United Airlines
Sep 11
STL8:00 amLambert-St Louis
8h 16m
1 stop
YOW5:16 pmOttawa
Sep 15
YOW6:00 amOttawa
4h 39m
1 stop
STL9:39 amLambert-St Louis
$605
United Airlines
Sep 11
STL8:30 amLambert-St Louis
9h 29m
2 stops
YOW6:59 pmOttawa
Sep 15
YOW2:52 pmOttawa
5h 19m
1 stop
STL7:11 pmLambert-St Louis
$615

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 August 4, 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

Thu 9/17

5:19 pm-2:33 pm

1 stop20h 14m

Ottawa

Thu 9/24

7:00 am-5:54 pm

2 stops11h 54m

$437

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Sat 8/29

5:02 pm-5:23 pm

2 stops23h 21m

Ottawa

Sat 9/5

7:00 am-4:11 pm

1 stop10h 11m

$539

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Fri 8/28

6:17 pm-4:20 pm

2 stops21h 03m

Ottawa

Fri 9/4

7:00 am-3:28 pm

1 stop9h 28m

$581

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Fri 8/28

7:25 am-1:59 pm

1 stop5h 34m

Ottawa

Fri 9/4

6:25 am-10:12 am

1 stop4h 47m

$591

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Fri 10/16

7:30 am-10:35 pm

1 stop14h 05m

Ottawa

Sun 10/18

10:00 am-2:00 pm

1 stop5h 00m

$591

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Sat 10/10

12:10 pm-7:45 pm

1 stop6h 35m

Ottawa

Mon 10/12

2:35 pm-6:41 pm

1 stop5h 06m

$597

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Tue 9/1

8:55 am-3:10 pm

1 stop5h 15m

Ottawa

Mon 9/7

2:40 pm-6:42 pm

1 stop5h 02m

$602
Quickest round-trip

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Fri 9/11

8:55 am-3:10 pm

1 stop5h 15m

Ottawa

Tue 9/15

2:45 pm-6:41 pm

1 stop4h 56m

$602

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Fri 9/11

8:00 am-5:16 pm

1 stop8h 16m

Ottawa

Tue 9/15

6:00 am-9:39 am

1 stop4h 39m

$605

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Fri 9/11

9:40 am-9:35 pm

1 stop10h 55m

Ottawa

Tue 9/15

3:10 pm-8:47 pm

1 stop6h 37m

$605

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

What is the cheapest month to fly to Ottawa?

In general, July is the cheapest month to fly from Missouri to Ottawa. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $322. The month of December is another great option to travel to Ottawa, with average flight prices from Missouri averaging around $342.

Can stopping save me money on Missouri to Ottawa flights?

You could potentially save up to 56% 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 54m

Direct flights

None
The fastest flight from Missouri to Ottawa takes 4h 54m
There are no direct flights from Missouri to Ottawa. There are no popular flight routes from Missouri to Ottawa.
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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
11,426 reviews
Search Air Canada flights
United AirlinesPriceFrom $203Free CancellationRating
7.4
10,059 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
Brockville
Pembroke
Petawawa
Perth
Calabogie
Smiths Falls
Prescott
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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