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Cheap flights from Ottawa to Houston from $237

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 Houston departing on 8/17. 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

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Find the cheapest flights from Ottawa to Houston

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:00 am - 2:50 pm
YOW
-
IAH
8h 50m
1 stop
Multiple Airlines Logo
8:02 pm - 4:48 pm
IAH
-
YOW
19h 46m
2 stops
$477Multiple Airlines
Mon, Jul 13 - Mon, Jul 20
Multiple Airlines Logo
12:25 pm - 10:40 pm
YOW
-
IAH
11h 15m
2 stops
Multiple Airlines Logo
8:36 am - 3:15 pm
IAH
-
YOW
29h 39m
1 stop
$497Multiple Airlines
Fri, Aug 28 - Sun, Sep 13
Multiple Airlines Logo
7:00 am - 6:09 pm
YOW
-
IAH
12h 09m
1 stop
Multiple Airlines Logo
8:36 am - 3:15 pm
IAH
-
YOW
29h 39m
1 stop
$504Multiple Airlines
Fri, Aug 28 - Sun, Sep 13
Multiple Airlines Logo
7:00 am - 8:45 am
YOW
-
IAH
26h 45m
1 stop
Multiple Airlines Logo
8:02 pm - 5:23 pm
IAH
-
YOW
20h 21m
2 stops
$524Multiple Airlines
Fri, Jul 31 - Tue, Aug 4
Air Canada Logo
2:35 pm - 7:38 pm
YOW
-
IAH
6h 03m
1 stop
Air Canada Logo
6:45 am - 3:10 pm
IAH
-
YOW
7h 25m
1 stop
$525Air Canada
Sat, Aug 22 - Fri, Aug 28
Air Canada Logo
5:10 am - 10:50 am
YOW
-
IAH
6h 40m
1 stop
Air Canada Logo
6:45 am - 3:10 pm
IAH
-
YOW
7h 25m
1 stop
$529Air Canada
Thu, Jul 9 - Mon, Jul 13
WestJet Logo
6:00 am - 10:40 pm
YOW
-
IAH
17h 40m
1 stop
WestJet Logo
6:30 am - 5:15 pm
IAH
-
YOW
9h 45m
1 stop
$531WestJet
Sun, Aug 30 - Sat, Sep 5
WestJet Logo
12:25 pm - 10:40 pm
YOW
-
IAH
11h 15m
2 stops
WestJet Logo
2:50 pm - 5:15 pm
IAH
-
YOW
25h 25m
1 stop
$532WestJet
Sat, Aug 22 - Fri, Aug 28
WestJet Logo
12:25 pm - 10:40 pm
YOW
-
IAH
11h 15m
2 stops
WestJet Logo
6:30 am - 5:15 pm
IAH
-
YOW
9h 45m
1 stop
$534WestJet
Sun, Aug 30 - Sat, Sep 5
WestJet Logo
12:25 pm - 10:40 pm
YOW
-
IAH
11h 15m
2 stops
WestJet Logo
2:50 pm - 5:35 am
IAH
-
YOW
13h 45m
1 stop
$542WestJet
Sat, Aug 22 - Fri, Aug 28

American Airlines flights from Ottawa to Houston

Our best American Airlines deals on Ottawa to Houston flight tickets
American Airlines
Jul 13
YOW7:00 amOttawa
12h 19m
3 stops
HOU6:19 pmHouston Hobby
Jul 20
HOU8:23 pmHouston Hobby
24h 12m
2 stops
YOW9:35 pmOttawa
$1,018
American Airlines
Jul 13
YOW8:40 amOttawa
12h 13m
3 stops
HOU7:53 pmHouston Hobby
Jul 20
HOU8:23 pmHouston Hobby
24h 12m
2 stops
YOW9:35 pmOttawa
$1,056
American Airlines
Jul 13
YOW7:00 amOttawa
13h 53m
3 stops
HOU7:53 pmHouston Hobby
Jul 20
HOU8:23 pmHouston Hobby
24h 12m
2 stops
YOW9:35 pmOttawa
$1,071

WestJet flights from Ottawa to Houston

Our best WestJet deals on Ottawa to Houston flight tickets
WestJet
Aug 30
YOW6:00 amOttawa
17h 40m
1 stop
IAH10:40 pmHouston George Bush Intcntl
Sep 5
IAH6:30 amHouston George Bush Intcntl
9h 45m
1 stop
YOW5:15 pmOttawa
$531
WestJet
Aug 22
YOW12:25 pmOttawa
11h 15m
2 stops
IAH10:40 pmHouston George Bush Intcntl
Aug 28
IAH2:50 pmHouston George Bush Intcntl
25h 25m
1 stop
YOW5:15 pmOttawa
$532
WestJet
Aug 30
YOW12:25 pmOttawa
11h 15m
2 stops
IAH10:40 pmHouston George Bush Intcntl
Sep 5
IAH6:30 amHouston George Bush Intcntl
9h 45m
1 stop
YOW5:15 pmOttawa
$534

momondo Fare Finder

 
Customize your flight search to find flights from Ottawa to Houston 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 June 5, 2026.
Use the filters below to find and compare flights from Ottawa to Houston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Mon 7/13

7:00 am-2:50 pm

1 stop8h 50m

Houston George Bush Intcntl

Mon 7/20

8:02 pm-4:48 pm

2 stops19h 46m

$477

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Fri 8/28

12:25 pm-10:40 pm

2 stops11h 15m

Houston George Bush Intcntl

Sun 9/13

8:36 am-3:15 pm

1 stop29h 39m

$497

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Fri 8/28

7:00 am-6:09 pm

1 stop12h 09m

Houston George Bush Intcntl

Sun 9/13

8:36 am-3:15 pm

1 stop29h 39m

$504

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Fri 7/31

7:00 am-8:45 am

1 stop26h 45m

Houston George Bush Intcntl

Tue 8/4

8:02 pm-5:23 pm

2 stops20h 21m

$524
Quickest round-trip

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sat 8/22

2:35 pm-7:38 pm

1 stop6h 03m

Houston George Bush Intcntl

Fri 8/28

6:45 am-3:10 pm

1 stop7h 25m

$525

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Thu 7/9

5:10 am-10:50 am

1 stop6h 40m

Houston George Bush Intcntl

Mon 7/13

6:45 am-3:10 pm

1 stop7h 25m

$529

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sun 8/30

6:00 am-10:40 pm

1 stop17h 40m

Houston George Bush Intcntl

Sat 9/5

6:30 am-5:15 pm

1 stop9h 45m

$531

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sat 8/22

12:25 pm-10:40 pm

2 stops11h 15m

Houston George Bush Intcntl

Fri 8/28

2:50 pm-5:15 pm

1 stop25h 25m

$532

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sun 8/30

12:25 pm-10:40 pm

2 stops11h 15m

Houston George Bush Intcntl

Sat 9/5

6:30 am-5:15 pm

1 stop9h 45m

$534

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sat 8/22

12:25 pm-10:40 pm

2 stops11h 15m

Houston George Bush Intcntl

Fri 8/28

2:50 pm-5:35 am

1 stop13h 45m

$542

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 Houston from

How to get the cheapest flight ticket from Ottawa to Houston

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 Ottawa and Houston?

What is the cheapest month to fly to Houston?

The month of July is, on average, the cheapest month to fly to Houston from Ottawa, with most prices found around $167. The month of December is another great option to travel to Houston, with average flight prices from Ottawa averaging around $221.

Cheap Ottawa to Houston flight deals and tips

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

Fastest flight time

6h 33m

Direct flights

None
The fastest flight from Ottawa to Houston takes 6h 33m
There are no direct flights from Ottawa to Houston. There are no popular flight routes from Ottawa to Houston.
Search flight deals

Frequently asked questions about flying from Ottawa to Houston

  • How far is Ottawa to Houston by plane?

    The distance between Ottawa and Houston is about 1517.5 mi. Flights usually cover this in 6h 33m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Ottawa Airport to Houston are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ottawa Airport to Houston.

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

    The travel and health documents required for your trip to Houston 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 Houston. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Ottawa to Houston

Compare and see reviews for airlines that fly from Ottawa to Houston with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $354Free CancellationRating
7.4
9,775 reviews
Search United Airlines flights
Air CanadaPriceFrom $404Free CancellationRating
7.1
11,127 reviews
Search Air Canada flights

Why use momondo?

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

Finding the right flight to Houston from Ottawa is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Houston quick and easy, saving you time and money.

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

All flight searches from Ottawa to Houston on momondo can be filtered to show those which offer flexible booking policies.

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

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 Houston from Ottawa.

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

Price alerts on flights to Houston from Ottawa are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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