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Cheap flights from Ottawa to Houston from $224

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 9/19. 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 Ottawa to Houston

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:00 am - 3:17 pmYOW  Ottawa-IAH Houston George Bush Intcntl
9h 17m1 stop Fort Lauderdale
Multiple Airlines Logo
8:25 am - 12:20 amIAH  Houston George Bush Intcntl-YOW Ottawa
14h 55m2 stops Fort Lauderdale Toronto Pearson Intl
$357Multiple Airlines
Sat, Sep 19 - Thu, Sep 24
Multiple Airlines Logo
7:00 am - 3:17 pmYOW  Ottawa-IAH Houston George Bush Intcntl
9h 17m1 stop Fort Lauderdale
Multiple Airlines Logo
8:25 am - 12:20 amIAH  Houston George Bush Intcntl-YOW Ottawa
14h 55m2 stops Fort Lauderdale Toronto Pearson Intl
$367Multiple Airlines
Sat, Sep 19 - Fri, Sep 25
Multiple Airlines Logo
7:00 am - 3:17 pmYOW  Ottawa-IAH Houston George Bush Intcntl
9h 17m1 stop Fort Lauderdale
Multiple Airlines Logo
5:41 pm - 7:20 pmIAH  Houston George Bush Intcntl-YOW Ottawa
24h 39m2 stops Phoenix Sky Harbor Intl Calgary
$376Multiple Airlines
Sat, Sep 19 - Wed, Sep 23
Multiple Airlines Logo
7:00 am - 9:14 pmYOW  Ottawa-IAH Houston George Bush Intcntl
15h 14m1 stop Orlando
Multiple Airlines Logo
8:25 am - 12:20 amIAH  Houston George Bush Intcntl-YOW Ottawa
14h 55m2 stops Fort Lauderdale Toronto Pearson Intl
$376Multiple Airlines
Fri, Sep 18 - Thu, Sep 24
United Airlines Logo
3:10 pm - 11:35 pmYOW  Ottawa-IAH Houston George Bush Intcntl
9h 25m1 stop Newark
United Airlines Logo
9:30 am - 10:35 pmIAH  Houston George Bush Intcntl-YOW Ottawa
12h 05m1 stop Newark
$598United Airlines
Thu, Oct 15 - Mon, Oct 19
United Airlines Logo
6:05 am - 1:39 pmYOW  Ottawa-IAH Houston George Bush Intcntl
8h 34m1 stop Newark
United Airlines Logo
2:51 pm - 11:54 pmIAH  Houston George Bush Intcntl-YOW Ottawa
8h 03m1 stop Washington, D.C. Dulles Intl
$598United Airlines
Thu, Oct 1 - Mon, Oct 5
United Airlines Logo
3:10 pm - 11:35 pmYOW  Ottawa-IAH Houston George Bush Intcntl
9h 25m1 stop Newark
United Airlines Logo
9:30 am - 10:35 pmIAH  Houston George Bush Intcntl-YOW Ottawa
12h 05m1 stop Newark
$599United Airlines
Thu, Oct 15 - Mon, Oct 19
Air Canada Logo
5:10 am - 10:53 amYOW  Ottawa-IAH Houston George Bush Intcntl
6h 43m1 stop Toronto Pearson Intl
Air Canada Logo
12:00 pm - 7:26 pmIAH  Houston George Bush Intcntl-YOW Ottawa
6h 26m1 stop Toronto Pearson Intl
$637Air Canada
Wed, Dec 30 - Wed, Mar 31
Air Canada Logo
4:00 pm - 10:11 pmYOW  Ottawa-IAH Houston George Bush Intcntl
7h 11m1 stop Toronto Pearson Intl
Air Canada Logo
10:04 am - 5:10 pmIAH  Houston George Bush Intcntl-YOW Ottawa
6h 06m1 stop Toronto Pearson Intl
$668Air Canada
Sat, Aug 22 - Fri, Aug 28
Air Canada Logo
5:10 am - 10:50 amYOW  Ottawa-IAH Houston George Bush Intcntl
6h 40m1 stop Toronto Pearson Intl
Air Canada Logo
6:45 am - 3:10 pmIAH  Houston George Bush Intcntl-YOW Ottawa
7h 25m1 stop Toronto Pearson Intl
$733Air Canada
Sat, Aug 22 - Fri, Aug 28

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American Airlines flights from Ottawa to Houston

Our best American Airlines deals on Ottawa to Houston flight tickets
American Airlines
Jan 9
YOW1:45 pmOttawa
23h 24m
2 stops
HOU12:09 pmHouston Hobby
Jan 17
HOU6:00 amHouston Hobby
10h 58m
2 stops
YOW5:58 pmOttawa
$748
American Airlines
Dec 22
YOW1:00 pmOttawa
11h 44m
2 stops
HOU11:44 pmHouston Hobby
Dec 26
HOU5:40 amHouston Hobby
11h 18m
2 stops
YOW5:58 pmOttawa
$755
American Airlines
Sep 4
YOW7:00 amOttawa
13h 51m
3 stops
HOU7:51 pmHouston Hobby
Sep 7
HOU6:14 pmHouston Hobby
26h 21m
2 stops
YOW9:35 pmOttawa
$866

Delta flights from Ottawa to Houston

Our best Delta deals on Ottawa to Houston flight tickets
Delta
Sep 19
YOW6:55 amOttawa
16h 44m
2 stops
HOU10:39 pmHouston Hobby
Sep 23
HOU6:00 amHouston Hobby
17h 20m
2 stops
YOW12:20 amOttawa
$826
Delta
Sep 12
YOW6:55 amOttawa
16h 44m
2 stops
HOU10:39 pmHouston Hobby
Sep 22
HOU5:26 pmHouston Hobby
29h 54m
2 stops
YOW12:20 amOttawa
$862
Delta
Sep 21
YOW6:55 amOttawa
28h 05m
2 stops
HOU10:00 amHouston Hobby
Sep 28
HOU6:00 amHouston Hobby
17h 20m
2 stops
YOW12:20 amOttawa
$934

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 August 7, 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 Ottawa - IAH Houston George Bush Intcntl

YOWIAH

Ottawa

Sat 9/19

7:00 am-3:17 pm

1 stop9h 17m

Houston George Bush Intcntl

Thu 9/24

8:25 am-12:20 am

2 stops14h 55m

$357

OttawaHouston

YOW Ottawa - IAH Houston George Bush Intcntl

YOWIAH

Ottawa

Sat 9/19

7:00 am-3:17 pm

1 stop9h 17m

Houston George Bush Intcntl

Fri 9/25

8:25 am-12:20 am

2 stops14h 55m

$367

OttawaHouston

YOW Ottawa - IAH Houston George Bush Intcntl

YOWIAH

Ottawa

Sat 9/19

7:00 am-3:17 pm

1 stop9h 17m

Houston George Bush Intcntl

Wed 9/23

5:41 pm-7:20 pm

2 stops24h 39m

$376

OttawaHouston

YOW Ottawa - IAH Houston George Bush Intcntl

YOWIAH

Ottawa

Fri 9/18

7:00 am-9:14 pm

1 stop15h 14m

Houston George Bush Intcntl

Thu 9/24

8:25 am-12:20 am

2 stops14h 55m

$376

OttawaHouston

YOW Ottawa - IAH Houston George Bush Intcntl

YOWIAH

Ottawa

Thu 10/15

3:10 pm-11:35 pm

1 stop9h 25m

Houston George Bush Intcntl

Mon 10/19

9:30 am-10:35 pm

1 stop12h 05m

$598

OttawaHouston

YOW Ottawa - IAH Houston George Bush Intcntl

YOWIAH

Ottawa

Thu 10/1

6:05 am-1:39 pm

1 stop8h 34m

Houston George Bush Intcntl

Mon 10/5

2:51 pm-11:54 pm

1 stop8h 03m

$598

OttawaHouston

YOW Ottawa - IAH Houston George Bush Intcntl

YOWIAH

Ottawa

Thu 10/15

3:10 pm-11:35 pm

1 stop9h 25m

Houston George Bush Intcntl

Mon 10/19

9:30 am-10:35 pm

1 stop12h 05m

$599
Quickest round-trip

OttawaHouston

YOW Ottawa - IAH Houston George Bush Intcntl

YOWIAH

Ottawa

Wed 12/30

5:10 am-10:53 am

1 stop6h 43m

Houston George Bush Intcntl

Wed 3/31

12:00 pm-7:26 pm

1 stop6h 26m

$637

OttawaHouston

YOW Ottawa - IAH Houston George Bush Intcntl

YOWIAH

Ottawa

Sat 8/22

4:00 pm-10:11 pm

1 stop7h 11m

Houston George Bush Intcntl

Fri 8/28

10:04 am-5:10 pm

1 stop6h 06m

$668

OttawaHouston

YOW Ottawa - IAH Houston George Bush Intcntl

YOWIAH

Ottawa

Sat 8/22

5:10 am-10:50 am

1 stop6h 40m

Houston George Bush Intcntl

Fri 8/28

6:45 am-3:10 pm

1 stop7h 25m

$733

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?

Prices are currently low for flights on this route.

Typical prices usually range from $584 to $847.
The lowest price recently found on this route was $357.

What is the cheapest month to fly to Houston?

The month of October is, on average, the cheapest month to fly to Houston from Ottawa, with most prices found around $512. The month of May is another great option to travel to Houston, with average flight prices from Ottawa averaging around $626.

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 15m

Direct flights

None
The fastest flight from Ottawa to Houston takes 6h 15m
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 15m, 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
10,081 reviews
Search United Airlines flights
Air CanadaPriceFrom $404Free CancellationRating
7.1
11,436 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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