Cheap flights from Houston to Ottawa from C$ 225

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Houston to Ottawa departing on 15/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

WestJet Logo
1:35 p.m. - 12:40 a.m.IAH-YOW
10h 05m1 stop
WestJet Logo
6:00 a.m. - 5:29 p.m.YOW-IAH
12h 29m1 stop
C$ 453WestJet
Find Deal
Thu, 27 Nov - Sat, 29 Nov
WestJet Logo
8:00 a.m. - 12:40 a.m.IAH-YOW
15h 40m1 stop
WestJet Logo
7:15 p.m. - 2:10 p.m.YOW-IAH
19h 55m1 stop
C$ 523WestJet
Find Deal
Mon, 13 Oct - Sat, 18 Oct
 Logo
12:17 p.m. - 11:58 p.m.IAH-YOW
10h 41m1 stop
 Logo
4:20 p.m. - 11:30 p.m.YOW-IAH
32h 10m3 stops
C$ 531
Find Deal
Sat, 15 Nov - Sun, 16 Nov
 Logo
5:45 a.m. - 12:41 a.m.IAH-YOW
17h 56m3 stops
 Logo
4:20 p.m. - 11:30 p.m.YOW-IAH
32h 10m3 stops
C$ 542
Find Deal
Sat, 15 Nov - Sun, 16 Nov
 Logo
11:44 a.m. - 4:57 p.m.IAH-YOW
28h 13m1 stop
 Logo
7:00 a.m. - 6:12 p.m.YOW-IAH
12h 12m2 stops
C$ 543
Find Deal
Thu, 18 Sep - Sat, 27 Sep
 Logo
8:10 p.m. - 5:20 p.m.IAH-YOW
20h 10m1 stop
 Logo
12:20 p.m. - 2:10 p.m.YOW-IAH
26h 50m2 stops
C$ 553
Find Deal
Fri, 10 Oct - Fri, 17 Oct
United Airlines Logo
9:30 a.m. - 5:18 p.m.IAH-YOW
6h 48m1 stop
United Airlines Logo
7:27 p.m. - 12:57 a.m.YOW-IAH
6h 30m1 stop
C$ 1,100United Airlines
Find Deal
Sun, 28 Dec - Sun, 28 Dec
United Airlines Logo
8:10 a.m. - 5:18 p.m.IAH-YOW
8h 08m1 stop
United Airlines Logo
7:27 p.m. - 7:45 a.m.YOW-IAH
13h 18m2 stops
C$ 1,114United Airlines
Find Deal
Sun, 28 Dec - Sun, 28 Dec
Delta Logo
11:30 a.m. - 12:42 a.m.IAH-YOW
12h 12m2 stops
Delta Logo
5:40 a.m. - 8:24 p.m.YOW-IAH
15h 44m2 stops
C$ 1,837Delta
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Thu, 8 Jan - Thu, 15 Jan
Delta Logo
11:00 a.m. - 12:42 a.m.IAH-YOW
12h 42m2 stops
Delta Logo
5:40 a.m. - 6:20 p.m.YOW-IAH
13h 40m2 stops
C$ 1,983Delta
Find Deal
Thu, 27 Nov - Sat, 29 Nov

WestJet flights from Houston to Ottawa

Our best WestJet deals on Houston to Ottawa flight tickets
WestJet
27 Nov
IAH1:35 p.m.Houston George Bush Intcntl
10h 05m
1 stop
YOW12:40 a.m.Ottawa
29 Nov
YOW6:00 a.m.Ottawa
12h 29m
1 stop
IAH5:29 p.m.Houston George Bush Intcntl
WestJet
13 Oct
IAH8:00 a.m.Houston George Bush Intcntl
15h 40m
1 stop
YOW12:40 a.m.Ottawa
18 Oct
YOW7:15 p.m.Ottawa
19h 55m
1 stop
IAH2:10 p.m.Houston George Bush Intcntl
WestJet
27 Nov
IAH1:35 p.m.Houston George Bush Intcntl
27h 46m
2 stops
YOW6:21 p.m.Ottawa
29 Nov
YOW6:00 a.m.Ottawa
12h 29m
1 stop
IAH5:29 p.m.Houston George Bush Intcntl

United Airlines flights from Houston to Ottawa

Our best United Airlines deals on Houston to Ottawa flight tickets
United Airlines
28 Dec
IAH9:30 a.m.Houston George Bush Intcntl
6h 48m
1 stop
YOW5:18 p.m.Ottawa
28 Dec
YOW7:27 p.m.Ottawa
6h 30m
1 stop
IAH12:57 a.m.Houston George Bush Intcntl
C$ 1,100
Find similar
United Airlines
28 Dec
IAH8:10 a.m.Houston George Bush Intcntl
8h 08m
1 stop
YOW5:18 p.m.Ottawa
28 Dec
YOW7:27 p.m.Ottawa
13h 18m
2 stops
IAH7:45 a.m.Houston George Bush Intcntl
C$ 1,114
Find similar
United Airlines
28 Dec
IAH5:00 a.m.Houston George Bush Intcntl
10h 27m
2 stops
YOW4:27 p.m.Ottawa
28 Dec
YOW7:27 p.m.Ottawa
13h 18m
2 stops
IAH7:45 a.m.Houston George Bush Intcntl
C$ 1,121
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Houston 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 96,600 searches. Data last updated 28 August 2025.
Use the filters below to find and compare flights from Houston to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Thu 27/11

1:35 p.m.-12:40 a.m.

1 stop10h 05m

Ottawa

Sat 29/11

6:00 a.m.-5:29 p.m.

1 stop12h 29m

C$ 453

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Mon 13/10

8:00 a.m.-12:40 a.m.

1 stop15h 40m

Ottawa

Sat 18/10

7:15 p.m.-2:10 p.m.

1 stop19h 55m

C$ 523

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Sat 15/11

12:17 p.m.-11:58 p.m.

1 stop10h 41m

Ottawa

Sun 16/11

4:20 p.m.-11:30 p.m.

3 stops32h 10m

C$ 531

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Sat 15/11

5:45 a.m.-12:41 a.m.

3 stops17h 56m

Ottawa

Sun 16/11

4:20 p.m.-11:30 p.m.

3 stops32h 10m

C$ 542

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Thu 18/9

11:44 a.m.-4:57 p.m.

1 stop28h 13m

Ottawa

Sat 27/9

7:00 a.m.-6:12 p.m.

2 stops12h 12m

C$ 543

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Fri 10/10

8:10 p.m.-5:20 p.m.

1 stop20h 10m

Ottawa

Fri 17/10

12:20 p.m.-2:10 p.m.

2 stops26h 50m

C$ 553

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Sun 28/12

9:30 a.m.-5:18 p.m.

1 stop6h 48m

Ottawa

Sun 28/12

7:27 p.m.-12:57 a.m.

1 stop6h 30m

C$ 1,100

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Sun 28/12

8:10 a.m.-5:18 p.m.

1 stop8h 08m

Ottawa

Sun 28/12

7:27 p.m.-7:45 a.m.

2 stops13h 18m

C$ 1,114

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Thu 8/1

11:30 a.m.-12:42 a.m.

2 stops12h 12m

Ottawa

Thu 15/1

5:40 a.m.-8:24 p.m.

2 stops15h 44m

C$ 1,837

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Thu 27/11

11:00 a.m.-12:42 a.m.

2 stops12h 42m

Ottawa

Sat 29/11

5:40 a.m.-6:20 p.m.

2 stops13h 40m

C$ 1,983

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Ottawa from

How to get the cheapest flight ticket from Houston 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 day to depart on your flight to Ottawa?

Our data shows that Saturday is the least expensive day to fly to Ottawa. Tickets to fly out on this day can be as low as C$ 567. Flights from Houston to Ottawa on a Wednesday will generally be more expensive and average around C$ 1,063. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Ottawa?

Our most recent data shows that the best time of day to fly to Ottawa is in the morning. Flights from Houston to Ottawa during this time can be as low as C$ 938. In the afternoon is when there is more demand to fly to Ottawa, so prices are often more expensive at around C$ 1,063 per ticket.

Cheap Houston to Ottawa flight deals and tips

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

Direct flights

None
There are no direct flights from Houston to Ottawa. There are no popular flight routes from Houston to Ottawa.
  • How far is Houston to Ottawa by plane?

    A flight from Houston to Ottawa will travel around 2442.2 km. Typically, this will take 5h 56m by plane in normal conditions.

  • When did momondo last update prices for flights from Houston to Ottawa Airport?

    Prices for flights from Houston to Ottawa Airport refresh daily.

  • How old do you have to be to fly from Houston 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 Houston to Ottawa Airport.

  • What documentation or ID do you need to fly to Ottawa Airport?

    The required travel and health documents for your Ottawa Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ottawa Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Travelling to a place near Ottawa?

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

Why use momondo?

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

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

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

Yes. momondo allows you to filter the results for Houston to Ottawa flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between Houston and Ottawa 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 Houston to Ottawa right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Houston 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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1 adult
Tue 2/9
Tue 9/9

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