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Cheap flights from Ottawa to Houston from $159

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 5/11. 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

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 - 6:33 pm
YOW
-
IAH
12h 33m
1 stop
Multiple Airlines Logo
7:44 pm - 12:20 am
IAH
-
YOW
27h 36m
2 stops
$353Multiple Airlines
Fri, May 8 - Tue, Jun 2
Multiple Airlines Logo
7:00 am - 6:33 pm
YOW
-
IAH
12h 33m
1 stop
Multiple Airlines Logo
6:00 am - 12:20 am
IAH
-
YOW
17h 20m
2 stops
$386Multiple Airlines
Fri, May 8 - Wed, Jun 3
Multiple Airlines Logo
7:00 am - 6:33 pm
YOW
-
IAH
12h 33m
1 stop
Multiple Airlines Logo
6:00 am - 8:05 pm
IAH
-
YOW
13h 05m
2 stops
$387Multiple Airlines
Fri, May 8 - Thu, Jun 4
Multiple Airlines Logo
7:00 am - 6:49 pm
YOW
-
IAH
12h 49m
2 stops
Multiple Airlines Logo
6:50 am - 5:37 pm
IAH
-
YOW
9h 47m
1 stop
$391Multiple Airlines
Tue, May 5 - Thu, Jun 4
Multiple Airlines Logo
7:00 am - 7:57 pm
YOW
-
IAH
13h 57m
1 stop
Multiple Airlines Logo
4:06 pm - 5:35 pm
IAH
-
YOW
24h 29m
2 stops
$404Multiple Airlines
Fri, Jun 12 - Wed, Jun 17
Multiple Airlines Logo
6:55 am - 8:50 am
YOW
-
IAH
26h 55m
2 stops
Multiple Airlines Logo
6:50 am - 5:35 pm
IAH
-
YOW
9h 45m
1 stop
$405Multiple Airlines
Wed, May 13 - Wed, May 20
Multiple Airlines Logo
7:00 am - 6:49 pm
YOW
-
IAH
12h 49m
2 stops
Multiple Airlines Logo
6:50 am - 12:17 pm
IAH
-
YOW
28h 27m
1 stop
$406Multiple Airlines
Tue, Jun 2 - Sat, Jun 6
Multiple Airlines Logo
9:05 am - 3:14 pm
YOW
-
IAH
7h 09m
1 stop
Multiple Airlines Logo
11:49 am - 12:20 am
IAH
-
YOW
11h 31m
2 stops
$426Multiple Airlines
Fri, Jun 5 - Fri, Jun 12
WestJet Logo
6:55 am - 4:09 pm
YOW
-
HOU
10h 14m
2 stops
WestJet Logo
6:00 am - 5:35 pm
HOU
-
YOW
10h 35m
2 stops
$687WestJet
Thu, May 28 - Sun, May 31
WestJet Logo
6:35 pm - 4:09 pm
YOW
-
HOU
22h 34m
2 stops
WestJet Logo
6:00 am - 12:20 am
HOU
-
YOW
17h 20m
2 stops
$727WestJet
Thu, May 28 - Sun, May 31

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WestJet flights from Ottawa to Houston

Our best WestJet deals on Ottawa to Houston flight tickets
WestJet
Jul 8
YOW8:15 pmOttawa
27h 25m
1 stop
IAH10:40 pmHouston George Bush Intcntl
Jul 14
IAH2:50 pmHouston George Bush Intcntl
13h 45m
1 stop
YOW5:35 amOttawa
$489
WestJet
Jul 8
YOW1:20 pmOttawa
10h 20m
1 stop
IAH10:40 pmHouston George Bush Intcntl
Jul 14
IAH6:30 amHouston George Bush Intcntl
11h 50m
1 stop
YOW7:20 pmOttawa
$497
WestJet
Jul 8
YOW8:15 pmOttawa
27h 25m
1 stop
IAH10:40 pmHouston George Bush Intcntl
Jul 14
IAH2:50 pmHouston George Bush Intcntl
13h 45m
1 stop
YOW5:35 amOttawa
$518

American Airlines flights from Ottawa to Houston

Our best American Airlines deals on Ottawa to Houston flight tickets
American Airlines
May 5
YOW7:00 amOttawa
14h 05m
3 stops
IAH8:05 pmHouston George Bush Intcntl
May 8
IAH7:23 amHouston George Bush Intcntl
11h 37m
2 stops
YOW8:00 pmOttawa
$1,037
American Airlines
May 19
YOW7:00 amOttawa
13h 49m
3 stops
HOU7:49 pmHouston Hobby
May 26
HOU8:23 pmHouston Hobby
17h 32m
3 stops
YOW2:55 pmOttawa
$1,067
American Airlines
May 5
YOW7:00 amOttawa
14h 05m
3 stops
IAH8:05 pmHouston George Bush Intcntl
May 8
IAH7:23 amHouston George Bush Intcntl
11h 37m
2 stops
YOW8:00 pmOttawa
$1,094

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 April 25, 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

Fri 5/8

7:00 am-6:33 pm

1 stop12h 33m

Houston George Bush Intcntl

Tue 6/2

7:44 pm-12:20 am

2 stops27h 36m

$353

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Fri 5/8

7:00 am-6:33 pm

1 stop12h 33m

Houston George Bush Intcntl

Wed 6/3

6:00 am-12:20 am

2 stops17h 20m

$386

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Fri 5/8

7:00 am-6:33 pm

1 stop12h 33m

Houston George Bush Intcntl

Thu 6/4

6:00 am-8:05 pm

2 stops13h 05m

$387

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Tue 5/5

7:00 am-6:49 pm

2 stops12h 49m

Houston George Bush Intcntl

Thu 6/4

6:50 am-5:37 pm

1 stop9h 47m

$391

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Fri 6/12

7:00 am-7:57 pm

1 stop13h 57m

Houston George Bush Intcntl

Wed 6/17

4:06 pm-5:35 pm

2 stops24h 29m

$404

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Wed 5/13

6:55 am-8:50 am

2 stops26h 55m

Houston George Bush Intcntl

Wed 5/20

6:50 am-5:35 pm

1 stop9h 45m

$405

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Tue 6/2

7:00 am-6:49 pm

2 stops12h 49m

Houston George Bush Intcntl

Sat 6/6

6:50 am-12:17 pm

1 stop28h 27m

$406
Quickest round-trip

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Fri 6/5

9:05 am-3:14 pm

1 stop7h 09m

Houston George Bush Intcntl

Fri 6/12

11:49 am-12:20 am

2 stops11h 31m

$426

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Thu 5/28

6:55 am-4:09 pm

2 stops10h 14m

Houston Hobby

Sun 5/31

6:00 am-5:35 pm

2 stops10h 35m

$687

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Thu 5/28

6:35 pm-4:09 pm

2 stops22h 34m

Houston Hobby

Sun 5/31

6:00 am-12:20 am

2 stops17h 20m

$727

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 December is, on average, the cheapest month to fly to Houston from Ottawa, with most prices found around $488. The month of October is another great option to travel to Houston, with average flight prices from Ottawa averaging around $490.

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.
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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
9,650 reviews
Search United Airlines flights
Air CanadaPriceFrom $404Free CancellationRating
7.1
10,966 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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