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Cheap flights from Ottawa to Houston from $256

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 9/6. 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
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.
WestJet Logo
1:20 pm - 10:40 pm
YOW
-
IAH
10h 20m
1 stop
WestJet Logo
6:30 am - 7:20 pm
IAH
-
YOW
11h 50m
1 stop
$436WestJet
Thu, Sep 3 - Tue, Sep 8
WestJet Logo
1:20 pm - 10:40 pm
YOW
-
IAH
10h 20m
1 stop
WestJet Logo
6:30 am - 7:20 pm
IAH
-
YOW
11h 50m
1 stop
$437WestJet
Thu, Sep 3 - Tue, Sep 8
WestJet Logo
12:25 pm - 10:40 pm
YOW
-
IAH
11h 15m
2 stops
WestJet Logo
6:30 am - 7:20 pm
IAH
-
YOW
11h 50m
1 stop
$462WestJet
Thu, Sep 3 - Tue, Sep 8
WestJet Logo
12:25 pm - 10:40 pm
YOW
-
IAH
11h 15m
2 stops
WestJet Logo
6:30 am - 7:20 pm
IAH
-
YOW
11h 50m
1 stop
$463WestJet
Thu, Sep 3 - Tue, Sep 8
WestJet Logo
7:20 am - 1:55 pm
YOW
-
IAH
31h 35m
1 stop
WestJet Logo
2:50 pm - 5:35 am
IAH
-
YOW
13h 45m
1 stop
$486WestJet
Sat, Aug 22 - Fri, Aug 28
WestJet Logo
4:15 pm - 1:55 pm
YOW
-
IAH
22h 40m
1 stop
WestJet Logo
2:50 pm - 5:35 am
IAH
-
YOW
13h 45m
1 stop
$487WestJet
Sat, Aug 22 - Fri, Aug 28
WestJet Logo
7:20 am - 1:55 pm
YOW
-
IAH
31h 35m
1 stop
WestJet Logo
2:50 pm - 5:35 am
IAH
-
YOW
13h 45m
1 stop
$488WestJet
Sat, Aug 22 - Fri, Aug 28
WestJet Logo
7:20 am - 1:55 pm
YOW
-
IAH
31h 35m
1 stop
WestJet Logo
2:50 pm - 3:20 pm
IAH
-
YOW
23h 30m
1 stop
$492WestJet
Sat, Aug 22 - Fri, Aug 28
Delta Logo
6:55 am - 9:51 pm
YOW
-
HOU
15h 56m
2 stops
Delta Logo
6:00 am - 12:20 am
HOU
-
YOW
17h 20m
2 stops
$821Delta
Tue, Jul 14 - Tue, Jul 21
Delta Logo
6:55 am - 9:51 pm
YOW
-
HOU
15h 56m
2 stops
Delta Logo
6:00 am - 12:20 am
HOU
-
YOW
17h 20m
2 stops
$865Delta
Thu, Jul 16 - Thu, Jul 23

American Airlines flights from Ottawa to Houston

Our best American Airlines deals on Ottawa to Houston flight tickets
American Airlines
Jul 31
YOW7:00 amOttawa
13h 53m
3 stops
HOU7:53 pmHouston Hobby
Aug 9
HOU9:37 amHouston Hobby
10h 03m
2 stops
YOW8:40 pmOttawa
$974
American Airlines
May 30
YOW8:40 amOttawa
12h 11m
3 stops
HOU7:51 pmHouston Hobby
Jun 7
HOU8:23 pmHouston Hobby
17h 32m
3 stops
YOW2:55 pmOttawa
$1,146
American Airlines
Jul 4
YOW8:40 amOttawa
12h 17m
3 stops
HOU7:57 pmHouston Hobby
Jul 18
HOU6:49 pmHouston Hobby
24h 51m
2 stops
YOW8:40 pmOttawa
$1,159

WestJet flights from Ottawa to Houston

Our best WestJet deals on Ottawa to Houston flight tickets
WestJet
Sep 3
YOW1:20 pmOttawa
10h 20m
1 stop
IAH10:40 pmHouston George Bush Intcntl
Sep 8
IAH6:30 amHouston George Bush Intcntl
11h 50m
1 stop
YOW7:20 pmOttawa
$436
WestJet
Sep 3
YOW1:20 pmOttawa
10h 20m
1 stop
IAH10:40 pmHouston George Bush Intcntl
Sep 8
IAH6:30 amHouston George Bush Intcntl
11h 50m
1 stop
YOW7:20 pmOttawa
$437
WestJet
Sep 3
YOW12:25 pmOttawa
11h 15m
2 stops
IAH10:40 pmHouston George Bush Intcntl
Sep 8
IAH6:30 amHouston George Bush Intcntl
11h 50m
1 stop
YOW7:20 pmOttawa
$462

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 18, 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
Quickest round-trip

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Thu 9/3

1:20 pm-10:40 pm

1 stop10h 20m

Houston George Bush Intcntl

Tue 9/8

6:30 am-7:20 pm

1 stop11h 50m

$436

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Thu 9/3

1:20 pm-10:40 pm

1 stop10h 20m

Houston George Bush Intcntl

Tue 9/8

6:30 am-7:20 pm

1 stop11h 50m

$437

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Thu 9/3

12:25 pm-10:40 pm

2 stops11h 15m

Houston George Bush Intcntl

Tue 9/8

6:30 am-7:20 pm

1 stop11h 50m

$462

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Thu 9/3

12:25 pm-10:40 pm

2 stops11h 15m

Houston George Bush Intcntl

Tue 9/8

6:30 am-7:20 pm

1 stop11h 50m

$463

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sat 8/22

7:20 am-1:55 pm

1 stop31h 35m

Houston George Bush Intcntl

Fri 8/28

2:50 pm-5:35 am

1 stop13h 45m

$486

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sat 8/22

4:15 pm-1:55 pm

1 stop22h 40m

Houston George Bush Intcntl

Fri 8/28

2:50 pm-5:35 am

1 stop13h 45m

$487

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sat 8/22

7:20 am-1:55 pm

1 stop31h 35m

Houston George Bush Intcntl

Fri 8/28

2:50 pm-5:35 am

1 stop13h 45m

$488

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sat 8/22

7:20 am-1:55 pm

1 stop31h 35m

Houston George Bush Intcntl

Fri 8/28

2:50 pm-3:20 pm

1 stop23h 30m

$492

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Tue 7/14

6:55 am-9:51 pm

2 stops15h 56m

Houston Hobby

Tue 7/21

6:00 am-12:20 am

2 stops17h 20m

$821

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Thu 7/16

6:55 am-9:51 pm

2 stops15h 56m

Houston Hobby

Thu 7/23

6:00 am-12:20 am

2 stops17h 20m

$865

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

5h 59m

Direct flights

None
The fastest flight from Ottawa to Houston takes 5h 59m
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 5h 59m, 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
9,737 reviews
Search United Airlines flights
Air CanadaPriceFrom $404Free CancellationRating
7.1
11,060 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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