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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.
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
$373WestJet
Mon, Oct 5 - Fri, Oct 9
Multiple Airlines Logo
3:27 pm - 5:23 pmIAH  Houston George Bush Intcntl-YOW Ottawa
24h 56m2 stops Raleigh-Durham Boston Logan Intl
Multiple Airlines Logo
7:00 am - 2:32 pmYOW  Ottawa-IAH Houston George Bush Intcntl
8h 32m1 stop Orlando
$405Multiple Airlines
Sat, Aug 29 - Sat, Sep 5
Multiple Airlines Logo
3:27 pm - 5:23 pmIAH  Houston George Bush Intcntl-YOW Ottawa
24h 56m2 stops Raleigh-Durham Boston Logan Intl
Multiple Airlines Logo
7:00 am - 4:14 pmYOW  Ottawa-IAH Houston George Bush Intcntl
10h 14m1 stop Orlando
$405Multiple Airlines
Sat, Aug 29 - Fri, Sep 4
Multiple Airlines Logo
5:09 pm - 5:23 pmIAH  Houston George Bush Intcntl-YOW Ottawa
23h 14m2 stops Raleigh-Durham Boston Logan Intl
Multiple Airlines Logo
7:00 am - 2:32 pmYOW  Ottawa-IAH Houston George Bush Intcntl
8h 32m1 stop Orlando
$414Multiple Airlines
Thu, Aug 27 - Sat, Sep 5
Air Canada Logo
12:00 pm - 7:45 pmIAH  Houston George Bush Intcntl-YOW Ottawa
6h 45m1 stop Toronto Pearson Intl
Air Canada Logo
2:55 pm - 9:39 pmYOW  Ottawa-IAH Houston George Bush Intcntl
7h 44m1 stop Montreal Pierre Elliott Trudeau Intl
$734Air Canada
Sat, Nov 21 - Mon, Nov 23
Air Canada Logo
12:00 pm - 7:45 pmIAH  Houston George Bush Intcntl-YOW Ottawa
6h 45m1 stop Toronto Pearson Intl
Air Canada Logo
2:55 pm - 9:39 pmYOW  Ottawa-IAH Houston George Bush Intcntl
7h 44m1 stop Montreal Pierre Elliott Trudeau Intl
$742Air Canada
Sat, Nov 21 - Mon, Nov 23
United Airlines Logo
7:55 pm - 1:26 pmIAH  Houston George Bush Intcntl-YOW Ottawa
16h 31m1 stop Newark
United Airlines Logo
4:36 pm - 12:20 amYOW  Ottawa-IAH Houston George Bush Intcntl
8h 44m1 stop Chicago O'Hare Intl
$872United Airlines
Tue, Dec 22 - Wed, Dec 23
United Airlines Logo
7:20 am - 6:55 pmIAH  Houston George Bush Intcntl-YOW Ottawa
10h 35m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
6:05 am - 11:35 pmYOW  Ottawa-IAH Houston George Bush Intcntl
18h 30m1 stop Newark
$878United Airlines
Wed, Sep 23 - Sun, Sep 27
United Airlines Logo
6:20 am - 9:31 pmIAH  Houston George Bush Intcntl-YOW Ottawa
14h 11m1 stop Chicago O'Hare Intl
United Airlines Logo
6:15 am - 9:30 pmYOW  Ottawa-IAH Houston George Bush Intcntl
16h 15m1 stop Chicago O'Hare Intl
$894United Airlines
Fri, Dec 18 - Sat, Jan 2
Air Canada Logo
12:00 pm - 7:30 pmIAH  Houston George Bush Intcntl-YOW Ottawa
6h 30m1 stop Toronto Pearson Intl
Air Canada Logo
1:25 pm - 9:34 pmYOW  Ottawa-IAH Houston George Bush Intcntl
9h 09m1 stop Montreal Pierre Elliott Trudeau Intl
$901Air Canada
Fri, Dec 18 - Mon, Dec 21

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WestJet flights from Houston to Ottawa

Our best WestJet deals on Houston to Ottawa flight tickets
WestJet
Oct 5
IAH6:30 amHouston George Bush Intcntl
11h 50m
1 stop
YOW7:20 pmOttawa
Oct 9
YOW4:15 pmOttawa
22h 40m
1 stop
IAH1:55 pmHouston George Bush Intcntl
$373
WestJet
Oct 8
IAH2:50 pmHouston George Bush Intcntl
13h 45m
1 stop
YOW5:35 amOttawa
Oct 13
YOW8:15 pmOttawa
18h 40m
1 stop
IAH1:55 pmHouston George Bush Intcntl
$459
WestJet
Nov 25
IAH6:20 pmHouston George Bush Intcntl
20h 30m
1 stop
YOW3:50 pmOttawa
Nov 29
YOW5:45 pmOttawa
19h 00m
1 stop
IAH11:45 amHouston George Bush Intcntl
$567

American Airlines flights from Houston to Ottawa

Our best American Airlines deals on Houston to Ottawa flight tickets
American Airlines
Aug 28
IAH7:00 amHouston George Bush Intcntl
13h 50m
2 stops
YOW9:50 pmOttawa
Sep 6
YOW7:00 amOttawa
17h 58m
2 stops
IAH11:58 pmHouston George Bush Intcntl
$958
American Airlines
Aug 28
IAH7:00 amHouston George Bush Intcntl
13h 50m
3 stops
YOW9:50 pmOttawa
Sep 6
YOW7:00 amOttawa
17h 58m
2 stops
IAH11:58 pmHouston George Bush Intcntl
$968
American Airlines
Sep 7
HOU6:14 pmHouston Hobby
19h 41m
3 stops
YOW2:55 pmOttawa
Sep 14
YOW7:00 amOttawa
13h 48m
3 stops
HOU7:48 pmHouston Hobby
$1,132

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 14, 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 10/5

6:30 am-7:20 pm

1 stop11h 50m

Ottawa

Fri 10/9

4:15 pm-1:55 pm

1 stop22h 40m

$373

HoustonOttawa

IAH Houston George Bush Intcntl - YOW Ottawa

IAHYOW

Houston George Bush Intcntl

Sat 8/29

3:27 pm-5:23 pm

2 stops24h 56m

Ottawa

Sat 9/5

7:00 am-2:32 pm

1 stop8h 32m

$405

HoustonOttawa

IAH Houston George Bush Intcntl - YOW Ottawa

IAHYOW

Houston George Bush Intcntl

Sat 8/29

3:27 pm-5:23 pm

2 stops24h 56m

Ottawa

Fri 9/4

7:00 am-4:14 pm

1 stop10h 14m

$405

HoustonOttawa

IAH Houston George Bush Intcntl - YOW Ottawa

IAHYOW

Houston George Bush Intcntl

Thu 8/27

5:09 pm-5:23 pm

2 stops23h 14m

Ottawa

Sat 9/5

7:00 am-2:32 pm

1 stop8h 32m

$414
Quickest round-trip

HoustonOttawa

IAH Houston George Bush Intcntl - YOW Ottawa

IAHYOW

Houston George Bush Intcntl

Sat 11/21

12:00 pm-7:45 pm

1 stop6h 45m

Ottawa

Mon 11/23

2:55 pm-9:39 pm

1 stop7h 44m

$734

HoustonOttawa

IAH Houston George Bush Intcntl - YOW Ottawa

IAHYOW

Houston George Bush Intcntl

Sat 11/21

12:00 pm-7:45 pm

1 stop6h 45m

Ottawa

Mon 11/23

2:55 pm-9:39 pm

1 stop7h 44m

$742

HoustonOttawa

IAH Houston George Bush Intcntl - YOW Ottawa

IAHYOW

Houston George Bush Intcntl

Tue 12/22

7:55 pm-1:26 pm

1 stop16h 31m

Ottawa

Wed 12/23

4:36 pm-12:20 am

1 stop8h 44m

$872

HoustonOttawa

IAH Houston George Bush Intcntl - YOW Ottawa

IAHYOW

Houston George Bush Intcntl

Wed 9/23

7:20 am-6:55 pm

1 stop10h 35m

Ottawa

Sun 9/27

6:05 am-11:35 pm

1 stop18h 30m

$878

HoustonOttawa

IAH Houston George Bush Intcntl - YOW Ottawa

IAHYOW

Houston George Bush Intcntl

Fri 12/18

6:20 am-9:31 pm

1 stop14h 11m

Ottawa

Sat 1/2

6:15 am-9:30 pm

1 stop16h 15m

$894

HoustonOttawa

IAH Houston George Bush Intcntl - YOW Ottawa

IAHYOW

Houston George Bush Intcntl

Fri 12/18

12:00 pm-7:30 pm

1 stop6h 30m

Ottawa

Mon 12/21

1:25 pm-9:34 pm

1 stop9h 09m

$901

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 is the most popular carrier 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

Fastest flight time

7h 25m

Direct flights

None
The fastest flight from Houston to Ottawa takes 7h 25m
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 7h 25m, 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
10,108 reviews
Search United Airlines flights
Air CanadaPriceFrom $375Free CancellationRating
7.1
11,471 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
Perth
Calabogie
Smiths Falls
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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