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Cheap flights from Houston to Ottawa from $177

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 10/13. 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 Houston to Ottawa

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:30 am - 7:20 pmIAH  Houston George Bush Intcntl-YOW Ottawa
11h 50m1 stop Calgary
Multiple Airlines Logo
4:15 pm - 3:13 pmYOW  Ottawa-IAH Houston George Bush Intcntl
23h 58m1 stop Orlando
$343Multiple Airlines
Mon, Sep 14 - Mon, Oct 5
WestJet Logo
6:30 am - 7:20 pmIAH  Houston George Bush Intcntl-YOW Ottawa
11h 50m1 stop Calgary
WestJet Logo
8:15 pm - 1:55 pmYOW  Ottawa-IAH Houston George Bush Intcntl
18h 40m1 stop Calgary
$359WestJet
Fri, Sep 11 - Fri, Sep 18
WestJet Logo
6:30 am - 7:20 pmIAH  Houston George Bush Intcntl-YOW Ottawa
11h 50m1 stop Calgary
WestJet Logo
6:15 pm - 1:55 pmYOW  Ottawa-IAH Houston George Bush Intcntl
20h 40m2 stops Edmonton Calgary
$360WestJet
Fri, Sep 11 - Fri, Sep 18
WestJet Logo
6:30 am - 7:20 pmIAH  Houston George Bush Intcntl-YOW Ottawa
11h 50m1 stop Calgary
WestJet Logo
4:15 pm - 1:55 pmYOW  Ottawa-IAH Houston George Bush Intcntl
22h 40m1 stop Calgary
$379WestJet
Mon, Sep 28 - Tue, Sep 29
Multiple Airlines Logo
6:30 am - 7:20 pmIAH  Houston George Bush Intcntl-YOW Ottawa
11h 50m1 stop Calgary
Multiple Airlines Logo
7:00 am - 10:30 pmYOW  Ottawa-IAH Houston George Bush Intcntl
16h 30m2 stops Fort Lauderdale Atlanta Hartsfield-Jackson
$380Multiple Airlines
Mon, Sep 14 - Mon, Oct 5
Air Canada Logo
9:52 am - 5:20 pmIAH  Houston George Bush Intcntl-YOW Ottawa
6h 28m1 stop Toronto Pearson Intl
Air Canada Logo
5:10 am - 10:53 amYOW  Ottawa-IAH Houston George Bush Intcntl
6h 43m1 stop Toronto Pearson Intl
$820Air Canada
Tue, Dec 22 - Tue, Jan 5
United Airlines Logo
8:20 pm - 9:56 amIAH  Houston George Bush Intcntl-YOW Ottawa
12h 36m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
6:15 am - 8:52 pmYOW  Ottawa-IAH Houston George Bush Intcntl
15h 37m2 stops Chicago O'Hare Intl Nashville Intl
$849United Airlines
Fri, Oct 23 - Tue, Oct 27
United Airlines Logo
7:20 am - 9:23 pmIAH  Houston George Bush Intcntl-YOW Ottawa
13h 03m1 stop Chicago O'Hare Intl
United Airlines Logo
6:15 am - 7:10 pmYOW  Ottawa-IAH Houston George Bush Intcntl
13h 55m1 stop Chicago O'Hare Intl
$894United Airlines
Fri, Dec 18 - Sat, Jan 2
United Airlines Logo
5:00 am - 7:27 pmIAH  Houston George Bush Intcntl-YOW Ottawa
13h 27m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl
United Airlines Logo
6:15 am - 9:00 pmYOW  Ottawa-IAH Houston George Bush Intcntl
15h 45m1 stop Chicago O'Hare Intl
$904United Airlines
Fri, Dec 18 - Sat, Jan 2
United Airlines Logo
7:20 am - 9:23 pmIAH  Houston George Bush Intcntl-YOW Ottawa
13h 03m1 stop Chicago O'Hare Intl
United Airlines Logo
6:15 am - 7:10 pmYOW  Ottawa-IAH Houston George Bush Intcntl
13h 55m1 stop Chicago O'Hare Intl
$905United Airlines
Fri, Dec 18 - Sat, Jan 2

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WestJet flights from Houston to Ottawa

Our best WestJet deals on Houston to Ottawa flight tickets
WestJet
Sep 11
IAH6:30 amHouston George Bush Intcntl
11h 50m
1 stop
YOW7:20 pmOttawa
Sep 18
YOW8:15 pmOttawa
18h 40m
1 stop
IAH1:55 pmHouston George Bush Intcntl
$359
WestJet
Sep 11
IAH6:30 amHouston George Bush Intcntl
11h 50m
1 stop
YOW7:20 pmOttawa
Sep 18
YOW6:15 pmOttawa
20h 40m
2 stops
IAH1:55 pmHouston George Bush Intcntl
$360
WestJet
Sep 28
IAH6:30 amHouston George Bush Intcntl
11h 50m
1 stop
YOW7:20 pmOttawa
Sep 29
YOW4:15 pmOttawa
22h 40m
1 stop
IAH1:55 pmHouston George Bush Intcntl
$379

American Airlines flights from Houston to Ottawa

Our best American Airlines deals on Houston to Ottawa flight tickets
American Airlines
Sep 12
HOU6:59 pmHouston Hobby
18h 56m
3 stops
YOW2:55 pmOttawa
Sep 19
YOW7:00 amOttawa
13h 48m
3 stops
HOU7:48 pmHouston Hobby
$969
American Airlines
Sep 11
HOU6:04 amHouston Hobby
12h 56m
3 stops
YOW8:00 pmOttawa
Sep 18
YOW7:00 amOttawa
13h 48m
3 stops
HOU7:48 pmHouston Hobby
$1,101
American Airlines
Aug 23
HOU5:41 amHouston Hobby
14h 39m
3 stops
YOW9:20 pmOttawa
Aug 30
YOW7:00 amOttawa
13h 44m
3 stops
HOU7:44 pmHouston Hobby
$1,257

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 832,500 searches. Data last updated August 17, 2026.
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

Cheapest round-trip

HoustonOttawa

IAH Houston George Bush Intcntl - YOW Ottawa

IAHYOW

Houston George Bush Intcntl

Mon 9/14

6:30 am-7:20 pm

1 stop11h 50m

Ottawa

Mon 10/5

4:15 pm-3:13 pm

1 stop23h 58m

$343

HoustonOttawa

IAH Houston George Bush Intcntl - YOW Ottawa

IAHYOW

Houston George Bush Intcntl

Fri 9/11

6:30 am-7:20 pm

1 stop11h 50m

Ottawa

Fri 9/18

8:15 pm-1:55 pm

1 stop18h 40m

$359

HoustonOttawa

IAH Houston George Bush Intcntl - YOW Ottawa

IAHYOW

Houston George Bush Intcntl

Fri 9/11

6:30 am-7:20 pm

1 stop11h 50m

Ottawa

Fri 9/18

6:15 pm-1:55 pm

2 stops20h 40m

$360

HoustonOttawa

IAH Houston George Bush Intcntl - YOW Ottawa

IAHYOW

Houston George Bush Intcntl

Mon 9/28

6:30 am-7:20 pm

1 stop11h 50m

Ottawa

Tue 9/29

4:15 pm-1:55 pm

1 stop22h 40m

$379

HoustonOttawa

IAH Houston George Bush Intcntl - YOW Ottawa

IAHYOW

Houston George Bush Intcntl

Mon 9/14

6:30 am-7:20 pm

1 stop11h 50m

Ottawa

Mon 10/5

7:00 am-10:30 pm

2 stops16h 30m

$380
Quickest round-trip

HoustonOttawa

IAH Houston George Bush Intcntl - YOW Ottawa

IAHYOW

Houston George Bush Intcntl

Tue 12/22

9:52 am-5:20 pm

1 stop6h 28m

Ottawa

Tue 1/5

5:10 am-10:53 am

1 stop6h 43m

$820

HoustonOttawa

IAH Houston George Bush Intcntl - YOW Ottawa

IAHYOW

Houston George Bush Intcntl

Fri 10/23

8:20 pm-9:56 am

1 stop12h 36m

Ottawa

Tue 10/27

6:15 am-8:52 pm

2 stops15h 37m

$849

HoustonOttawa

IAH Houston George Bush Intcntl - YOW Ottawa

IAHYOW

Houston George Bush Intcntl

Fri 12/18

7:20 am-9:23 pm

1 stop13h 03m

Ottawa

Sat 1/2

6:15 am-7:10 pm

1 stop13h 55m

$894

HoustonOttawa

IAH Houston George Bush Intcntl - YOW Ottawa

IAHYOW

Houston George Bush Intcntl

Fri 12/18

5:00 am-7:27 pm

2 stops13h 27m

Ottawa

Sat 1/2

6:15 am-9:00 pm

1 stop15h 45m

$904

HoustonOttawa

IAH Houston George Bush Intcntl - YOW Ottawa

IAHYOW

Houston George Bush Intcntl

Fri 12/18

7:20 am-9:23 pm

1 stop13h 03m

Ottawa

Sat 1/2

6:15 am-7:10 pm

1 stop13h 55m

$905

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 airline that flies from Houston to Ottawa?

WestJet and Delta are the most popular carriers operating from Houston to Ottawa

What airlines fly to Ottawa?

Air Canada, United Airlines and American Airlines are the top three most popular airlines that fly to Ottawa from Houston according to our data. Air Canada is the first choice among our users, with 60% of people opting to fly with this airline when traveling to Ottawa. Keep in mind that there are 3 different airlines that fly to Ottawa on a routine basis, so you have a few additional options to choose from.

Cheap Houston to Ottawa flight deals and tips

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

Best Price Found

$177

Fastest flight time

6h 30m

Direct flights

None
The best one-way flight to Ottawa from Houston in the past 72 hours is $177. The best round-trip flight deal from Houston to Ottawa found on momondo in the last 72 hours is $343.
The fastest flight from Houston to Ottawa takes 6h 30m
There are no direct flights from Houston to Ottawa. There are no popular flight routes from Houston to Ottawa.
Search flight deals

Frequently asked questions about flying from Houston to Ottawa

  • How far is Houston to Ottawa by plane?

    The straight-line distance from Houston to Ottawa is 1517.5 mi. Flights usually cover this in 6h 30m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Houston to Ottawa Airport are refreshed on a daily basis.

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

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

    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 Houston to Ottawa Airport.

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

    The travel and health documents you'll need for your trip to Ottawa Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ottawa Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Houston to Ottawa

Compare and see reviews for airlines that fly from Houston to Ottawa with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $351Free CancellationRating
7.4
10,106 reviews
Search United Airlines flights
Air CanadaPriceFrom $375Free CancellationRating
7.1
11,485 reviews
Search Air Canada flights

Traveling to a place near Ottawa?

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

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Houston to Ottawa for you.

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

momondo does allow users to show only those flights to Ottawa from Houston which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ottawa from Houston.

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

Yes momondo offers price alerts on flights to Ottawa from Houston. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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