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Cheap flights from Ottawa to Missouri from $178

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ottawa to Missouri departing on 10/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Ottawa to Missouri

Cheap round-trip flights

Logo
6:00 am - 11:59 pmYOW-STL
18h 59m2 stops
Logo
1:57 pm - 4:57 pmSTL-YOW
26h 00m1 stop
$531
Find Deal
Mon, Sep 22 - Mon, Sep 29
United Airlines Logo
5:50 pm - 2:19 pmYOW-STL
21h 29m2 stops
United Airlines Logo
5:28 pm - 11:45 amSTL-YOW
17h 17m2 stops
$532United Airlines
Find Deal
Mon, Sep 22 - Mon, Sep 29
United Airlines Logo
5:50 pm - 2:19 pmYOW-STL
21h 29m2 stops
United Airlines Logo
7:04 pm - 2:26 pmSTL-YOW
18h 22m2 stops
$544United Airlines
Find Deal
Mon, Sep 8 - Mon, Sep 15
United Airlines Logo
6:05 am - 3:44 pmYOW-STL
10h 39m2 stops
United Airlines Logo
6:30 am - 2:13 pmSTL-YOW
6h 43m2 stops
$595United Airlines
Find Deal
Tue, Sep 23 - Tue, Sep 30
Air Canada Logo
10:00 am - 3:18 pmYOW-STL
6h 18m1 stop
Air Canada Logo
9:15 am - 5:04 pmSTL-YOW
6h 49m1 stop
$604Air Canada
Find Deal
Fri, Sep 12 - Sun, Sep 14
United Airlines Logo
5:25 pm - 10:40 amYOW-STL
18h 15m1 stop
United Airlines Logo
5:15 am - 4:43 pmSTL-YOW
10h 28m2 stops
$611United Airlines
Find Deal
Fri, Sep 12 - Sun, Sep 14
United Airlines Logo
5:09 pm - 9:43 pmYOW-STL
5h 34m1 stop
United Airlines Logo
6:35 pm - 10:07 amSTL-YOW
14h 32m1 stop
$625United Airlines
Find Deal
Thu, Dec 18 - Mon, Jan 5
United Airlines Logo
6:00 am - 2:26 pmYOW-STL
9h 26m2 stops
United Airlines Logo
6:30 am - 6:52 pmSTL-YOW
11h 22m2 stops
$685United Airlines
Find Deal
Thu, Dec 18 - Mon, Jan 5

Air Canada flights from Ottawa to Missouri

Our best Air Canada deals on Ottawa to Missouri flight tickets
Air Canada
Sep 12
YOW10:00 amOttawa
6h 18m
1 stop
STL3:18 pmLambert-St Louis
Sep 14
STL9:15 amLambert-St Louis
6h 49m
1 stop
YOW5:04 pmOttawa
$604
Find similar
Air Canada
Aug 17
YOW4:05 pmOttawa
4h 55m
1 stop
STL8:00 pmLambert-St Louis
Aug 25
STL1:30 pmLambert-St Louis
5h 45m
1 stop
YOW8:15 pmOttawa
$870
Find similar
Air Canada
Aug 17
YOW4:05 pmOttawa
4h 55m
1 stop
STL8:00 pmLambert-St Louis
Aug 25
STL5:30 pmLambert-St Louis
7h 05m
2 stops
YOW1:35 amOttawa
$887
Find similar

United Airlines flights from Ottawa to Missouri

Our best United Airlines deals on Ottawa to Missouri flight tickets
United Airlines
Sep 22
YOW5:50 pmOttawa
21h 29m
2 stops
STL2:19 pmLambert-St Louis
Sep 29
STL5:28 pmLambert-St Louis
17h 17m
2 stops
YOW11:45 amOttawa
$532
Find similar
United Airlines
Sep 8
YOW5:50 pmOttawa
21h 29m
2 stops
STL2:19 pmLambert-St Louis
Sep 15
STL7:04 pmLambert-St Louis
18h 22m
2 stops
YOW2:26 pmOttawa
$544
Find similar
United Airlines
Sep 23
YOW6:05 amOttawa
10h 39m
2 stops
STL3:44 pmLambert-St Louis
Sep 30
STL6:30 amLambert-St Louis
6h 43m
2 stops
YOW2:13 pmOttawa
$595
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ottawa to Missouri 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 10, 2025.
Use the filters below to find and compare flights from Ottawa to Missouri that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Mon 9/22

6:00 am-11:59 pm

2 stops18h 59m

Lambert-St Louis

Mon 9/29

1:57 pm-4:57 pm

1 stop26h 00m

$531

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Mon 9/22

5:50 pm-2:19 pm

2 stops21h 29m

Lambert-St Louis

Mon 9/29

5:28 pm-11:45 am

2 stops17h 17m

$532

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Mon 9/8

5:50 pm-2:19 pm

2 stops21h 29m

Lambert-St Louis

Mon 9/15

7:04 pm-2:26 pm

2 stops18h 22m

$544

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Tue 9/23

6:05 am-3:44 pm

2 stops10h 39m

Lambert-St Louis

Tue 9/30

6:30 am-2:13 pm

2 stops6h 43m

$595

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Fri 9/12

10:00 am-3:18 pm

1 stop6h 18m

Lambert-St Louis

Sun 9/14

9:15 am-5:04 pm

1 stop6h 49m

$604

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Fri 9/12

5:25 pm-10:40 am

1 stop18h 15m

Lambert-St Louis

Sun 9/14

5:15 am-4:43 pm

2 stops10h 28m

$611

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Thu 12/18

5:09 pm-9:43 pm

1 stop5h 34m

Lambert-St Louis

Mon 1/5

6:35 pm-10:07 am

1 stop14h 32m

$625

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Thu 12/18

6:00 am-2:26 pm

2 stops9h 26m

Lambert-St Louis

Mon 1/5

6:30 am-6:52 pm

2 stops11h 22m

$685

OttawaKansas City

YOW - MCI

YOWMCI

Ottawa

Wed 10/15

4:25 pm-11:50 pm

1 stop8h 25m

$178

OttawaKansas City

YOW - MCI

YOWMCI

Ottawa

Wed 10/15

7:00 am-11:50 pm

2 stops17h 50m

$202

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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See travel insights to Missouri from

How to get the cheapest flight ticket from Ottawa to Missouri

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 Missouri?

In general, September is the cheapest month to fly from Ottawa to Missouri. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $517. If you aren’t able to travel to Missouri during the month of September, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $586.

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

The cheapest day to depart from Ottawa to Missouri is on a Wednesday when prices can be found for as low as $614. Flights from Ottawa to Missouri on a Monday will generally be more expensive and average around $667. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Can stopping save me money on Ottawa to Missouri flights?

You could potentially save up to 32% on your flight if you consider stops on a Ottawa to Missouri flight.

Cheap Ottawa to Missouri flight deals and tips

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

Best Price Found

$178

Fastest flight time

5h 04m

Direct flights

None

Airports in Missouri

2 airports
The best one-way flight to Missouri from Ottawa in the past 72 hours is $178. The best round-trip flight deal from Ottawa to Missouri found on momondo in the last 72 hours is $531.
The fastest flight from Ottawa to Missouri takes 5h 04m
There are no direct flights from Ottawa to Missouri. Popular non-direct routes for this connection are Ottawa Airport - Lambert-St Louis Airport and Ottawa Airport - Kansas City Airport.
There are 2 airports near Missouri: Kansas City (MCI), Lambert-St Louis (STL)
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  • When did momondo last update prices for flights from Ottawa Airport to Missouri?

    Prices for flights from Ottawa Airport to Missouri were last updated today.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ottawa Airport to Missouri.

  • What documentation or ID do you need to fly to Missouri?

    The travel and health documents required for your trip to Missouri can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Missouri. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Ottawa to Missouri

Compare and see reviews for airlines that fly from Ottawa to Missouri with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $511Free CancellationRating
7.1
9,911 reviews
Search Air Canada flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ottawa to Missouri. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to Missouri from Ottawa with this policy.

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

momondo helps you find the best flight between Ottawa and Missouri by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Ottawa to Missouri flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Fri 8/15
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