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Cheap flights from Ottawa to Houston from $182

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 5/9. 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
4:20 pm - 7:02 am
YOW
-
IAH
15h 42m
1 stop
Multiple Airlines Logo
2:23 pm - 11:58 pm
IAH
-
YOW
8h 35m
1 stop
$339Multiple Airlines
Sun, Apr 12 - Fri, Apr 17
Multiple Airlines Logo
4:20 pm - 7:02 am
YOW
-
IAH
15h 42m
1 stop
Multiple Airlines Logo
2:23 pm - 11:58 pm
IAH
-
YOW
8h 35m
1 stop
$345Multiple Airlines
Sun, Apr 12 - Fri, Apr 17
Multiple Airlines Logo
7:00 am - 10:47 pm
YOW
-
IAH
16h 47m
1 stop
Multiple Airlines Logo
2:01 pm - 11:58 pm
IAH
-
YOW
8h 57m
1 stop
$351Multiple Airlines
Wed, Apr 22 - Sat, Apr 25
Multiple Airlines Logo
9:20 am - 10:36 am
YOW
-
IAH
26h 16m
2 stops
Multiple Airlines Logo
7:04 pm - 11:58 pm
IAH
-
YOW
27h 54m
1 stop
$353Multiple Airlines
Sun, Apr 12 - Fri, Apr 17
Multiple Airlines Logo
7:00 am - 10:47 pm
YOW
-
IAH
16h 47m
1 stop
Multiple Airlines Logo
6:58 pm - 5:25 pm
IAH
-
YOW
21h 27m
1 stop
$358Multiple Airlines
Wed, Apr 22 - Mon, Apr 27
WestJet Logo
6:55 am - 11:07 pm
YOW
-
HOU
17h 12m
2 stops
WestJet Logo
6:00 am - 12:20 am
HOU
-
YOW
17h 20m
2 stops
$611WestJet
Tue, May 5 - Fri, May 8
WestJet Logo
6:55 am - 4:28 pm
YOW
-
HOU
10h 33m
2 stops
WestJet Logo
1:06 pm - 12:20 am
HOU
-
YOW
10h 14m
2 stops
$624WestJet
Tue, May 5 - Fri, May 8
WestJet Logo
6:55 am - 4:28 pm
YOW
-
HOU
10h 33m
2 stops
WestJet Logo
1:06 pm - 12:20 am
HOU
-
YOW
10h 14m
2 stops
$625WestJet
Tue, May 5 - Fri, May 8
Delta Logo
6:55 am - 11:07 pm
YOW
-
HOU
17h 12m
2 stops
Delta Logo
1:06 pm - 12:20 am
HOU
-
YOW
34h 14m
2 stops
$711Delta
Thu, Apr 30 - Thu, May 7
Delta Logo
5:40 am - 11:07 pm
YOW
-
HOU
18h 27m
2 stops
Delta Logo
1:31 pm - 12:20 am
HOU
-
YOW
33h 49m
2 stops
$748Delta
Tue, Apr 21 - Mon, Apr 27

WestJet flights from Ottawa to Houston

Our best WestJet deals on Ottawa to Houston flight tickets
WestJet
May 5
YOW6:55 amOttawa
17h 12m
2 stops
HOU11:07 pmHouston Hobby
May 8
HOU6:00 amHouston Hobby
17h 20m
2 stops
YOW12:20 amOttawa
$611
WestJet
May 5
YOW6:55 amOttawa
10h 33m
2 stops
HOU4:28 pmHouston Hobby
May 8
HOU1:06 pmHouston Hobby
10h 14m
2 stops
YOW12:20 amOttawa
$624
WestJet
May 5
YOW6:55 amOttawa
10h 33m
2 stops
HOU4:28 pmHouston Hobby
May 8
HOU1:06 pmHouston Hobby
10h 14m
2 stops
YOW12:20 amOttawa
$625

Delta flights from Ottawa to Houston

Our best Delta deals on Ottawa to Houston flight tickets
Delta
Apr 30
YOW6:55 amOttawa
17h 12m
2 stops
HOU11:07 pmHouston Hobby
May 7
HOU1:06 pmHouston Hobby
34h 14m
2 stops
YOW12:20 amOttawa
$711
Delta
Apr 21
YOW5:40 amOttawa
18h 27m
2 stops
HOU11:07 pmHouston Hobby
Apr 27
HOU1:31 pmHouston Hobby
33h 49m
2 stops
YOW12:20 amOttawa
$748
Delta
Aug 23
YOW6:55 amOttawa
15h 40m
2 stops
HOU9:35 pmHouston Hobby
Aug 31
HOU6:00 amHouston Hobby
10h 35m
2 stops
YOW5:35 pmOttawa
$1,636

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 March 21, 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

Sun 4/12

4:20 pm-7:02 am

1 stop15h 42m

Houston George Bush Intcntl

Fri 4/17

2:23 pm-11:58 pm

1 stop8h 35m

$339

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sun 4/12

4:20 pm-7:02 am

1 stop15h 42m

Houston George Bush Intcntl

Fri 4/17

2:23 pm-11:58 pm

1 stop8h 35m

$345

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Wed 4/22

7:00 am-10:47 pm

1 stop16h 47m

Houston George Bush Intcntl

Sat 4/25

2:01 pm-11:58 pm

1 stop8h 57m

$351

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sun 4/12

9:20 am-10:36 am

2 stops26h 16m

Houston George Bush Intcntl

Fri 4/17

7:04 pm-11:58 pm

1 stop27h 54m

$353

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Wed 4/22

7:00 am-10:47 pm

1 stop16h 47m

Houston George Bush Intcntl

Mon 4/27

6:58 pm-5:25 pm

1 stop21h 27m

$358

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Tue 5/5

6:55 am-11:07 pm

2 stops17h 12m

Houston Hobby

Fri 5/8

6:00 am-12:20 am

2 stops17h 20m

$611
Quickest round-trip

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Tue 5/5

6:55 am-4:28 pm

2 stops10h 33m

Houston Hobby

Fri 5/8

1:06 pm-12:20 am

2 stops10h 14m

$624

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Tue 5/5

6:55 am-4:28 pm

2 stops10h 33m

Houston Hobby

Fri 5/8

1:06 pm-12:20 am

2 stops10h 14m

$625

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Thu 4/30

6:55 am-11:07 pm

2 stops17h 12m

Houston Hobby

Thu 5/7

1:06 pm-12:20 am

2 stops34h 14m

$711

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Tue 4/21

5:40 am-11:07 pm

2 stops18h 27m

Houston Hobby

Mon 4/27

1:31 pm-12:20 am

2 stops33h 49m

$748

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 cheapest month to fly to Houston?

The month of May is, on average, the cheapest month to fly to Houston from Ottawa, with most prices found around $439. The month of December is another great option to travel to Houston, with average flight prices from Ottawa averaging around $488.

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

8h 51m

Direct flights

None
The fastest flight from Ottawa to Houston takes 8h 51m
There are no direct flights from Ottawa to Houston. There are no popular flight routes from Ottawa to Houston.
Search flight deals

  • How far is Ottawa to Houston by plane?

    The distance between Ottawa and Houston is about 1517.5 mi. Flights usually cover this in 8h 51m, 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
Air CanadaPriceFrom $404Free CancellationRating
7.1
10,821 reviews
Search Air Canada flights
United AirlinesPriceFrom $602Free CancellationRating
7.4
9,451 reviews
Search United Airlines 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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