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Cheap flights from Missouri to Ottawa from $181

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 6/29. 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.
United Airlines Logo
8:00 am - 1:59 pm
STL
-
YOW
4h 59m
1 stop
United Airlines Logo
2:48 pm - 9:24 pm
YOW
-
STL
7h 36m
1 stop
$409United Airlines
Sat, Sep 26 - Sat, Oct 3
United Airlines Logo
3:11 pm - 9:35 pm
STL
-
YOW
5h 24m
1 stop
United Airlines Logo
6:00 am - 9:21 pm
YOW
-
STL
16h 21m
2 stops
$418United Airlines
Sat, Sep 26 - Sat, Oct 3
United Airlines Logo
6:01 am - 10:05 pm
STL
-
YOW
15h 04m
1 stop
United Airlines Logo
6:25 am - 12:11 pm
YOW
-
STL
6h 46m
1 stop
$424United Airlines
Mon, Jul 20 - Wed, Jul 22
United Airlines Logo
1:13 pm - 11:54 pm
STL
-
YOW
9h 41m
2 stops
United Airlines Logo
3:10 pm - 11:44 pm
YOW
-
STL
9h 34m
1 stop
$433United Airlines
Thu, Jul 9 - Mon, Jul 13
Air Canada Logo
8:55 am - 5:10 pm
STL
-
YOW
7h 15m
1 stop
Air Canada Logo
9:00 am - 2:02 pm
YOW
-
STL
6h 02m
1 stop
$450Air Canada
Fri, Aug 7 - Sun, Aug 9
Air Canada Logo
12:10 pm - 10:10 pm
STL
-
YOW
9h 00m
1 stop
Air Canada Logo
9:00 am - 2:02 pm
YOW
-
STL
6h 02m
1 stop
$451Air Canada
Fri, Aug 7 - Sun, Aug 9
Air Canada Logo
6:00 am - 7:52 pm
STL
-
YOW
12h 52m
2 stops
Air Canada Logo
9:00 am - 2:02 pm
YOW
-
STL
6h 02m
1 stop
$464Air Canada
Fri, Jul 10 - Fri, Jul 17
Air Canada Logo
6:00 am - 9:35 pm
STL
-
YOW
14h 35m
1 stop
Air Canada Logo
10:00 am - 2:02 pm
YOW
-
STL
5h 02m
1 stop
$465Air Canada
Fri, Jul 10 - Fri, Jul 17
Delta Logo
6:40 am - 5:35 pm
STL
-
YOW
9h 55m
2 stops
Delta Logo
12:25 pm - 10:28 pm
YOW
-
STL
11h 03m
2 stops
$513Delta
Sat, Sep 26 - Sat, Oct 3
WestJet Logo
6:20 am - 12:20 am
MCI
-
YOW
17h 00m
2 stops
WestJet Logo
6:25 pm - 12:13 pm
YOW
-
MCI
18h 48m
2 stops
$1,135WestJet
Wed, Jul 1 - Thu, Jul 23

Air Canada flights from Missouri to Ottawa

Our best Air Canada deals on Missouri to Ottawa flight tickets
Air Canada
Aug 7
STL8:55 amLambert-St Louis
7h 15m
1 stop
YOW5:10 pmOttawa
Aug 9
YOW9:00 amOttawa
6h 02m
1 stop
STL2:02 pmLambert-St Louis
$450
Air Canada
Aug 7
STL12:10 pmLambert-St Louis
9h 00m
1 stop
YOW10:10 pmOttawa
Aug 9
YOW9:00 amOttawa
6h 02m
1 stop
STL2:02 pmLambert-St Louis
$451
Air Canada
Jul 10
STL6:00 amLambert-St Louis
12h 52m
2 stops
YOW7:52 pmOttawa
Jul 17
YOW9:00 amOttawa
6h 02m
1 stop
STL2:02 pmLambert-St Louis
$464

United Airlines flights from Missouri to Ottawa

Our best United Airlines deals on Missouri to Ottawa flight tickets
United Airlines
Sep 26
STL8:00 amLambert-St Louis
4h 59m
1 stop
YOW1:59 pmOttawa
Oct 3
YOW2:48 pmOttawa
7h 36m
1 stop
STL9:24 pmLambert-St Louis
$409
United Airlines
Sep 26
STL3:11 pmLambert-St Louis
5h 24m
1 stop
YOW9:35 pmOttawa
Oct 3
YOW6:00 amOttawa
16h 21m
2 stops
STL9:21 pmLambert-St Louis
$418
United Airlines
Jul 20
STL6:01 amLambert-St Louis
15h 04m
1 stop
YOW10:05 pmOttawa
Jul 22
YOW6:25 amOttawa
6h 46m
1 stop
STL12:11 pmLambert-St Louis
$424

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 May 26, 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
Quickest round-trip

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Sat 9/26

8:00 am-1:59 pm

1 stop4h 59m

Ottawa

Sat 10/3

2:48 pm-9:24 pm

1 stop7h 36m

$409

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Sat 9/26

3:11 pm-9:35 pm

1 stop5h 24m

Ottawa

Sat 10/3

6:00 am-9:21 pm

2 stops16h 21m

$418

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Mon 7/20

6:01 am-10:05 pm

1 stop15h 04m

Ottawa

Wed 7/22

6:25 am-12:11 pm

1 stop6h 46m

$424

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Thu 7/9

1:13 pm-11:54 pm

2 stops9h 41m

Ottawa

Mon 7/13

3:10 pm-11:44 pm

1 stop9h 34m

$433

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Fri 8/7

8:55 am-5:10 pm

1 stop7h 15m

Ottawa

Sun 8/9

9:00 am-2:02 pm

1 stop6h 02m

$450

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Fri 8/7

12:10 pm-10:10 pm

1 stop9h 00m

Ottawa

Sun 8/9

9:00 am-2:02 pm

1 stop6h 02m

$451

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Fri 7/10

6:00 am-7:52 pm

2 stops12h 52m

Ottawa

Fri 7/17

9:00 am-2:02 pm

1 stop6h 02m

$464

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Fri 7/10

6:00 am-9:35 pm

1 stop14h 35m

Ottawa

Fri 7/17

10:00 am-2:02 pm

1 stop5h 02m

$465

St. LouisOttawa

STL - YOW

STLYOW

Lambert-St Louis

Sat 9/26

6:40 am-5:35 pm

2 stops9h 55m

Ottawa

Sat 10/3

12:25 pm-10:28 pm

2 stops11h 03m

$513

Kansas CityOttawa

MCI - YOW

MCIYOW

Kansas City

Wed 7/1

6:20 am-12:20 am

2 stops17h 00m

Ottawa

Thu 7/23

6:25 pm-12:13 pm

2 stops18h 48m

$1,135

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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

What is the cheapest month to fly to Ottawa?

In general, August 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 $98. The month of July is another great option to travel to Ottawa, with average flight prices from Missouri averaging around $139.

Can stopping save me money on Missouri to Ottawa flights?

You could potentially save up to 2% 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 59m

Direct flights

None
The fastest flight from Missouri to Ottawa takes 4h 59m
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
11,090 reviews
Search Air Canada flights
United AirlinesPriceFrom $219Free CancellationRating
7.4
9,749 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
Brockville
Petawawa
Smiths Falls
Calabogie
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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