What airlines fly to Houston?

Air Canada, United Airlines and Delta are the top three most popular airlines that fly to Houston from Ottawa according to our data. Air Canada is the first choice among our users, with 58% of people opting to fly with this airline when traveling to Houston. Keep in mind that there are 3 different airlines that fly to Houston on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Ottawa to Houston?

United Airlines, WestJet, and Air Canada are the most popular carriers operating from Ottawa to Houston

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?

There are 2 operators available for flights from Ottawa Airport to Houston as of September 2025.

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.

$172 Cheap Flights from Ottawa to Houston in 2025/26

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Find the cheapest flights from Ottawa to Houston

Round-trip

One-way

Last minute

Cheap round-trip flights

3:50 pm - 12:28 amYOW-IAH

9h 38m1 stop

6:00 am - 5:25 pmIAH-YOW

10h 25m1 stop

$283Multiple Airlines

Find Deal

Sat, Oct 25 - Mon, Oct 27

9:30 am - 9:33 amYOW-IAH

25h 03m1 stop

1:35 pm - 12:40 amIAH-YOW

10h 05m1 stop

$296Multiple Airlines

Find Deal

Fri, Oct 31 - Mon, Nov 3

6:00 am - 5:29 pmYOW-IAH

12h 29m1 stop

6:20 pm - 4:53 pmIAH-YOW

21h 33m1 stop

$301WestJet

Find Deal

Thu, Nov 27 - Tue, Dec 2

9:30 am - 9:33 amYOW-IAH

25h 03m1 stop

6:20 pm - 4:53 pmIAH-YOW

21h 33m1 stop

$312Multiple Airlines

Find Deal

Mon, Oct 27 - Thu, Nov 27

9:30 am - 9:33 amYOW-IAH

25h 03m1 stop

6:00 am - 6:26 pmIAH-YOW

11h 26m2 stops

$318Multiple Airlines

Find Deal

Fri, Oct 31 - Mon, Nov 3

3:50 pm - 12:28 amYOW-IAH

9h 38m1 stop

8:24 pm - 5:25 pmIAH-YOW

20h 01m2 stops

$329Multiple Airlines

Find Deal

Sat, Oct 25 - Mon, Oct 27

4:25 pm - 8:33 amYOW-IAH

17h 08m1 stop

3:00 pm - 1:00 pmIAH-YOW

21h 00m1 stop

$330Multiple Airlines

Find Deal

Wed, Oct 8 - Sat, Oct 11

6:00 am - 5:30 pmYOW-IAH

12h 30m1 stop

6:20 pm - 12:40 amIAH-YOW

29h 20m1 stop

$383WestJet

Find Deal

Sun, Feb 22 - Fri, Feb 27

9:45 am - 8:40 pmYOW-IAH

11h 55m2 stops

6:05 pm - 1:34 pmIAH-YOW

18h 29m2 stops

$421United Airlines

Find Deal

Tue, Feb 24 - Wed, Feb 25

6:00 am - 10:43 pmYOW-IAH

17h 43m1 stop

3:00 pm - 11:32 amIAH-YOW

19h 32m2 stops

$447WestJet

Find Deal

Thu, Oct 9 - Sun, Oct 12

WestJet flights from Ottawa to Houston

Our best WestJet deals on Ottawa to Houston flight tickets

WestJet

Nov 27

YOW6:00 amOttawa

12h 29m

1 stop

IAH5:29 pmHouston George Bush Intcntl

Dec 2

IAH6:20 pmHouston George Bush Intcntl

21h 33m

1 stop

YOW4:53 pmOttawa

$301

Find similar

WestJet

Feb 22

YOW6:00 amOttawa

12h 30m

1 stop

IAH5:30 pmHouston George Bush Intcntl

Feb 27

IAH6:20 pmHouston George Bush Intcntl

29h 20m

1 stop

YOW12:40 amOttawa

$383

Find similar

WestJet

Oct 9

YOW6:00 amOttawa

17h 43m

1 stop

IAH10:43 pmHouston George Bush Intcntl

Oct 12

IAH3:00 pmHouston George Bush Intcntl

19h 32m

2 stops

YOW11:32 amOttawa

$447

Find similar

United Airlines flights from Ottawa to Houston

Our best United Airlines deals on Ottawa to Houston flight tickets

United Airlines

Feb 24

YOW9:45 amOttawa

11h 55m

2 stops

IAH8:40 pmHouston George Bush Intcntl

Feb 25

IAH6:05 pmHouston George Bush Intcntl

18h 29m

2 stops

YOW1:34 pmOttawa

$421

Find similar

United Airlines

Sep 26

YOW3:55 pmOttawa

17h 23m

2 stops

IAH8:18 amHouston George Bush Intcntl

Oct 15

IAH6:05 pmHouston George Bush Intcntl

16h 40m

2 stops

YOW11:45 amOttawa

$719

Find similar

United Airlines

Sep 26

YOW11:55 amOttawa

12h 35m

2 stops

IAH11:30 pmHouston George Bush Intcntl

Sep 28

IAH6:30 pmHouston George Bush Intcntl

18h 43m

2 stops

YOW2:13 pmOttawa

$772

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sat 10/25

3:50 pm-12:28 am

1 stop9h 38m

Houston George Bush Intcntl

Mon 10/27

6:00 am-5:25 pm

1 stop10h 25m

$283

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Fri 10/31

9:30 am-9:33 am

1 stop25h 03m

Houston George Bush Intcntl

Mon 11/3

1:35 pm-12:40 am

1 stop10h 05m

$296

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Thu 11/27

6:00 am-5:29 pm

1 stop12h 29m

Houston George Bush Intcntl

Tue 12/2

6:20 pm-4:53 pm

1 stop21h 33m

$301

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Mon 10/27

9:30 am-9:33 am

1 stop25h 03m

Houston George Bush Intcntl

Thu 11/27

6:20 pm-4:53 pm

1 stop21h 33m

$312

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Fri 10/31

9:30 am-9:33 am

1 stop25h 03m

Houston George Bush Intcntl

Mon 11/3

6:00 am-6:26 pm

2 stops11h 26m

$318

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sat 10/25

3:50 pm-12:28 am

1 stop9h 38m

Houston George Bush Intcntl

Mon 10/27

8:24 pm-5:25 pm

2 stops20h 01m

$329

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Wed 10/8

4:25 pm-8:33 am

1 stop17h 08m

Houston George Bush Intcntl

Sat 10/11

3:00 pm-1:00 pm

1 stop21h 00m

$330

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sun 2/22

6:00 am-5:30 pm

1 stop12h 30m

Houston George Bush Intcntl

Fri 2/27

6:20 pm-12:40 am

1 stop29h 20m

$383

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Tue 2/24

9:45 am-8:40 pm

2 stops11h 55m

Houston George Bush Intcntl

Wed 2/25

6:05 pm-1:34 pm

2 stops18h 29m

$421

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Thu 10/9

6:00 am-10:43 pm

1 stop17h 43m

Houston George Bush Intcntl

Sun 10/12

3:00 pm-11:32 am

2 stops19h 32m

$447

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

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 $564. The month of January is another great option to travel to Houston, with average flight prices from Ottawa averaging around $604.

What is the cheapest day to depart on your flight to Houston?

On average, the least expensive day to fly to Houston from Ottawa is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $596. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Houston on Sunday is $901.

What is the cheapest time of day to depart on your flight to Houston?

Our data shows that the cheapest Ottawa to Houston flights are usually those with departure times in the evening. Our users have found flights to Houston in the evening for as low as $629. Try not to purchase tickets in the morning because they tend to be around $775. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to Houston?

You are more likely to see cheaper flights to Houston from Ottawa when booking weeks ahead of your departure date. In general, you can expect to find flights to Houston for around $684 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Houston from Ottawa for as low as $520 on momondo.

Cheap Ottawa to Houston flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ottawa to Houston

Direct flights	None

There are no direct flights from Ottawa to Houston. There are no popular flight routes from Ottawa to Houston.

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How far is Ottawa to Houston by plane?
The distance between Ottawa and Houston is about 1517.5 mi. Flights usually cover this in 7h 29m, 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?
There are 2 operators available for flights from Ottawa Airport to Houston as of September 2025.
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 Canada	PriceFrom $481	Free Cancellation	Rating 7.1 10,000 reviews		Search Air Canada flights
United Airlines	PriceFrom $526	Free Cancellation	Rating 7.4 8,926 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.