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Cheap flights from Houston to Ottawa from $135

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 3/26. 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 Houston to Ottawa

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:32 am - 12:25 am
IAH
-
YOW
11h 53m
1 stop
Multiple Airlines Logo
7:00 am - 4:54 pm
YOW
-
IAH
34h 54m
2 stops
$302Multiple Airlines
Thu, Apr 9 - Tue, Apr 14
Multiple Airlines Logo
9:46 am - 12:25 am
IAH
-
YOW
13h 39m
1 stop
Multiple Airlines Logo
6:55 am - 8:32 am
YOW
-
IAH
26h 37m
2 stops
$303Multiple Airlines
Thu, Apr 23 - Thu, May 7
Multiple Airlines Logo
11:16 am - 11:58 pm
IAH
-
YOW
11h 42m
1 stop
Multiple Airlines Logo
7:00 am - 11:48 pm
YOW
-
IAH
17h 48m
1 stop
$313Multiple Airlines
Sat, Apr 11 - Sat, Apr 18
Multiple Airlines Logo
11:16 am - 11:58 pm
IAH
-
YOW
11h 42m
1 stop
Multiple Airlines Logo
4:15 pm - 7:59 am
YOW
-
IAH
40h 44m
2 stops
$314Multiple Airlines
Sat, Apr 11 - Sat, Apr 18
WestJet Logo
1:35 pm - 12:40 am
IAH
-
YOW
10h 05m
1 stop
WestJet Logo
6:00 am - 5:30 pm
YOW
-
IAH
12h 30m
1 stop
$359WestJet
Thu, Apr 9 - Tue, Apr 14
American Airlines Logo
8:21 pm - 6:26 pm
HOU
-
YOW
21h 05m
2 stops
American Airlines Logo
10:00 am - 11:47 pm
YOW
-
HOU
14h 47m
2 stops
$780American Airlines
Sat, Apr 11 - Sat, Apr 18
American Airlines Logo
8:20 pm - 4:48 pm
HOU
-
YOW
19h 28m
2 stops
American Airlines Logo
10:00 am - 9:43 am
YOW
-
HOU
24h 43m
2 stops
$843American Airlines
Thu, Mar 26 - Thu, Apr 2
American Airlines Logo
8:21 pm - 6:26 pm
HOU
-
YOW
21h 05m
2 stops
American Airlines Logo
6:45 am - 7:51 pm
YOW
-
HOU
14h 06m
3 stops
$895American Airlines
Mon, Apr 13 - Mon, Apr 20
WestJet Logo
10:53 am - 12:39 am
HOU
-
YOW
12h 46m
2 stops
WestJet Logo
6:55 am - 4:28 pm
YOW
-
HOU
10h 33m
2 stops
$918WestJet
Mon, Apr 20 - Thu, Apr 30
WestJet Logo
2:13 pm - 12:39 am
HOU
-
YOW
9h 26m
2 stops
WestJet Logo
5:40 am - 9:58 am
YOW
-
HOU
29h 18m
2 stops
$952WestJet
Thu, Apr 9 - Tue, Apr 14

WestJet flights from Houston to Ottawa

Our best WestJet deals on Houston to Ottawa flight tickets
WestJet
Apr 9
IAH1:35 pmHouston George Bush Intcntl
10h 05m
1 stop
YOW12:40 amOttawa
Apr 14
YOW6:00 amOttawa
12h 30m
1 stop
IAH5:30 pmHouston George Bush Intcntl
$359
WestJet
Apr 9
IAH1:35 pmHouston George Bush Intcntl
27h 48m
2 stops
YOW6:23 pmOttawa
Apr 14
YOW6:00 amOttawa
12h 30m
1 stop
IAH5:30 pmHouston George Bush Intcntl
$518
WestJet
Apr 20
HOU10:53 amHouston Hobby
12h 46m
2 stops
YOW12:39 amOttawa
Apr 30
YOW6:55 amOttawa
10h 33m
2 stops
HOU4:28 pmHouston Hobby
$918

American Airlines flights from Houston to Ottawa

Our best American Airlines deals on Houston to Ottawa flight tickets
American Airlines
Apr 11
HOU8:21 pmHouston Hobby
21h 05m
2 stops
YOW6:26 pmOttawa
Apr 18
YOW10:00 amOttawa
14h 47m
2 stops
HOU11:47 pmHouston Hobby
$780
American Airlines
Mar 26
HOU8:20 pmHouston Hobby
19h 28m
2 stops
YOW4:48 pmOttawa
Apr 2
YOW10:00 amOttawa
24h 43m
2 stops
HOU9:43 amHouston Hobby
$843
American Airlines
Apr 13
HOU8:21 pmHouston Hobby
21h 05m
2 stops
YOW6:26 pmOttawa
Apr 20
YOW6:45 amOttawa
14h 06m
3 stops
HOU7:51 pmHouston Hobby
$895

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 February 28, 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

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Thu 4/9

11:32 am-12:25 am

1 stop11h 53m

Ottawa

Tue 4/14

7:00 am-4:54 pm

2 stops34h 54m

$302

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Thu 4/23

9:46 am-12:25 am

1 stop13h 39m

Ottawa

Thu 5/7

6:55 am-8:32 am

2 stops26h 37m

$303

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Sat 4/11

11:16 am-11:58 pm

1 stop11h 42m

Ottawa

Sat 4/18

7:00 am-11:48 pm

1 stop17h 48m

$313

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Sat 4/11

11:16 am-11:58 pm

1 stop11h 42m

Ottawa

Sat 4/18

4:15 pm-7:59 am

2 stops40h 44m

$314

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Thu 4/9

1:35 pm-12:40 am

1 stop10h 05m

Ottawa

Tue 4/14

6:00 am-5:30 pm

1 stop12h 30m

$359

HoustonOttawa

HOU - YOW

HOUYOW

Houston Hobby

Sat 4/11

8:21 pm-6:26 pm

2 stops21h 05m

Ottawa

Sat 4/18

10:00 am-11:47 pm

2 stops14h 47m

$780

HoustonOttawa

HOU - YOW

HOUYOW

Houston Hobby

Thu 3/26

8:20 pm-4:48 pm

2 stops19h 28m

Ottawa

Thu 4/2

10:00 am-9:43 am

2 stops24h 43m

$843

HoustonOttawa

HOU - YOW

HOUYOW

Houston Hobby

Mon 4/13

8:21 pm-6:26 pm

2 stops21h 05m

Ottawa

Mon 4/20

6:45 am-7:51 pm

3 stops14h 06m

$895

HoustonOttawa

HOU - YOW

HOUYOW

Houston Hobby

Mon 4/20

10:53 am-12:39 am

2 stops12h 46m

Ottawa

Thu 4/30

6:55 am-4:28 pm

2 stops10h 33m

$918

HoustonOttawa

HOU - YOW

HOUYOW

Houston Hobby

Thu 4/9

2:13 pm-12:39 am

2 stops9h 26m

Ottawa

Tue 4/14

5:40 am-9:58 am

2 stops29h 18m

$952

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 typical price of a round-trip flight between Houston and Ottawa?

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

9h 35m

Direct flights

None
The fastest flight from Houston to Ottawa takes 9h 35m
There are no direct flights from Houston to Ottawa. There are no popular flight routes from Houston to Ottawa.
Search flight deals

  • 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 9h 35m, 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
Air CanadaPriceFrom $325Free CancellationRating
7.1
10,757 reviews
Search Air Canada flights
United AirlinesPriceFrom $380Free CancellationRating
7.4
9,363 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
Calabogie
Petawawa
Brockville
Smiths Falls
Perth
Prescott
Winchester
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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