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Cheap flights from Ottawa to Houston from $262

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 10/18. 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 Ottawa to Houston

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:00 am - 6:29 pm
YOW
-
IAH
12h 29m
2 stops
Multiple Airlines Logo
7:24 pm - 2:33 pm
IAH
-
YOW
18h 09m
1 stop
$503Multiple Airlines
Tue, Jun 16 - Thu, Jun 18
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
$523Air Canada
Sat, Aug 22 - Fri, Aug 28
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
$524Air Canada
Sat, Aug 22 - Fri, Aug 28
Air Canada Logo
4:00 pm - 10:06 pm
YOW
-
IAH
7h 06m
1 stop
Air Canada Logo
6:45 am - 3:10 pm
IAH
-
YOW
7h 25m
1 stop
$528Air Canada
Mon, Jul 13 - Sat, Jul 18
Air Canada Logo
5:10 am - 10:50 am
YOW
-
IAH
6h 40m
1 stop
Air Canada Logo
7:20 am - 3:10 pm
IAH
-
YOW
6h 50m
1 stop
$529Air Canada
Wed, Jun 24 - Mon, Jun 29
Multiple Airlines Logo
4:15 pm - 1:55 pm
YOW
-
IAH
22h 40m
1 stop
Multiple Airlines Logo
8:55 am - 3:00 pm
IAH
-
YOW
29h 05m
1 stop
$544Multiple Airlines
Tue, Jun 23 - Sun, Jun 28
WestJet Logo
6:00 am - 10:40 pm
YOW
-
IAH
17h 40m
1 stop
WestJet Logo
2:50 pm - 5:15 pm
IAH
-
YOW
25h 25m
1 stop
$556WestJet
Sat, Aug 22 - Fri, Aug 28
WestJet Logo
6:55 am - 9:43 pm
YOW
-
HOU
15h 48m
2 stops
WestJet Logo
6:03 am - 5:35 pm
HOU
-
YOW
10h 32m
2 stops
$770WestJet
Wed, Jun 24 - Sun, Jun 28
Delta Logo
6:55 am - 9:43 pm
YOW
-
HOU
15h 48m
2 stops
Delta Logo
6:00 am - 12:20 am
HOU
-
YOW
17h 20m
2 stops
$844Delta
Wed, Jun 17 - Tue, Aug 4
Delta Logo
6:55 am - 9:43 pm
YOW
-
HOU
15h 48m
2 stops
Delta Logo
6:03 am - 12:20 am
HOU
-
YOW
17h 17m
2 stops
$866Delta
Thu, Jun 25 - Tue, Jun 30

Delta flights from Ottawa to Houston

Our best Delta deals on Ottawa to Houston flight tickets
Delta
Jun 17
YOW6:55 amOttawa
15h 48m
2 stops
HOU9:43 pmHouston Hobby
Aug 4
HOU6:00 amHouston Hobby
17h 20m
2 stops
YOW12:20 amOttawa
$844
Delta
Jun 25
YOW6:55 amOttawa
15h 48m
2 stops
HOU9:43 pmHouston Hobby
Jun 30
HOU6:03 amHouston Hobby
17h 17m
2 stops
YOW12:20 amOttawa
$866
Delta
Jun 29
YOW6:55 amOttawa
15h 48m
2 stops
HOU9:43 pmHouston Hobby
Jul 7
HOU6:00 amHouston Hobby
17h 20m
2 stops
YOW12:20 amOttawa
$980

American Airlines flights from Ottawa to Houston

Our best American Airlines deals on Ottawa to Houston flight tickets
American Airlines
Jun 22
YOW8:40 amOttawa
16h 19m
2 stops
HOU11:59 pmHouston Hobby
Jun 30
HOU6:03 amHouston Hobby
14h 32m
2 stops
YOW9:35 pmOttawa
$1,017
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
$1,071
American Airlines
Jul 11
YOW7:00 amOttawa
13h 57m
3 stops
HOU7:57 pmHouston Hobby
Jul 18
HOU10:18 amHouston Hobby
9h 22m
2 stops
YOW8:40 pmOttawa
$1,151

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 May 30, 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

Tue 6/16

7:00 am-6:29 pm

2 stops12h 29m

Houston George Bush Intcntl

Thu 6/18

7:24 pm-2:33 pm

1 stop18h 09m

$503
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

$523

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

$524

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Mon 7/13

4:00 pm-10:06 pm

1 stop7h 06m

Houston George Bush Intcntl

Sat 7/18

6:45 am-3:10 pm

1 stop7h 25m

$528

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Wed 6/24

5:10 am-10:50 am

1 stop6h 40m

Houston George Bush Intcntl

Mon 6/29

7:20 am-3:10 pm

1 stop6h 50m

$529

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Tue 6/23

4:15 pm-1:55 pm

1 stop22h 40m

Houston George Bush Intcntl

Sun 6/28

8:55 am-3:00 pm

1 stop29h 05m

$544

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sat 8/22

6:00 am-10:40 pm

1 stop17h 40m

Houston George Bush Intcntl

Fri 8/28

2:50 pm-5:15 pm

1 stop25h 25m

$556

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Wed 6/24

6:55 am-9:43 pm

2 stops15h 48m

Houston Hobby

Sun 6/28

6:03 am-5:35 pm

2 stops10h 32m

$770

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Wed 6/17

6:55 am-9:43 pm

2 stops15h 48m

Houston Hobby

Tue 8/4

6:00 am-12:20 am

2 stops17h 20m

$844

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Thu 6/25

6:55 am-9:43 pm

2 stops15h 48m

Houston Hobby

Tue 6/30

6:03 am-12:20 am

2 stops17h 17m

$866

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 21m

Direct flights

None
The fastest flight from Ottawa to Houston takes 6h 21m
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 21m, 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
9,766 reviews
Search United Airlines flights
Air CanadaPriceFrom $404Free CancellationRating
7.1
11,105 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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