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

WestJet, Air Canada, and United Airlines 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 refreshed on a daily basis.

How many operators does momondo search for flights from Ottawa Airport to Houston?

As of August 2025, there are 2 operators available to choose from for flights from Ottawa Airport to Houston.

How old do you have to be to fly from Ottawa Airport to Houston?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, 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 you'll need for your trip to Houston may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Houston. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

C$ 275 Cheap Flights from Ottawa to Houston in 2025

1 adult

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Find the cheapest flights from Ottawa to Houston

Round-trip

One-way

Cheap round-trip flights

7:00 a.m. - 6:12 p.m.YOW-IAH

12h 12m2 stops

3:00 p.m. - 1:00 p.m.IAH-YOW

21h 00m1 stop

C$ 487

Find Deal

Wed, 17 Sep - Fri, 26 Sep

7:15 p.m. - 2:10 p.m.YOW-IAH

19h 55m1 stop

8:00 a.m. - 6:45 a.m.IAH-YOW

21h 45m1 stop

C$ 488WestJet

Find Deal

Fri, 19 Sep - Tue, 23 Sep

3:45 p.m. - 10:43 p.m.YOW-IAH

31h 58m1 stop

8:00 a.m. - 12:40 a.m.IAH-YOW

15h 40m1 stop

C$ 496WestJet

Find Deal

Thu, 18 Sep - Mon, 22 Sep

5:15 p.m. - 2:10 p.m.YOW-IAH

21h 55m2 stops

3:00 p.m. - 6:45 a.m.IAH-YOW

14h 45m1 stop

C$ 500WestJet

Find Deal

Fri, 19 Sep - Tue, 23 Sep

9:20 a.m. - 5:42 p.m.YOW-IAH

9h 22m1 stop

1:35 p.m. - 12:40 a.m.IAH-YOW

10h 05m1 stop

C$ 506

Find Deal

Sat, 8 Nov - Mon, 10 Nov

5:15 p.m. - 10:43 p.m.YOW-IAH

30h 28m2 stops

5:37 a.m. - 5:20 p.m.IAH-YOW

10h 43m1 stop

C$ 507

Find Deal

Thu, 18 Sep - Mon, 22 Sep

3:45 p.m. - 2:10 p.m.YOW-IAH

23h 25m1 stop

3:00 p.m. - 6:20 p.m.IAH-YOW

26h 20m1 stop

C$ 510WestJet

Find Deal

Wed, 17 Sep - Fri, 26 Sep

7:25 p.m. - 8:36 a.m.YOW-IAH

14h 11m1 stop

12:00 p.m. - 9:56 p.m.IAH-YOW

8h 56m1 stop

C$ 861United Airlines

Find Deal

Tue, 24 Feb - Wed, 25 Feb

6:33 a.m. - 11:53 a.m.YOW-IAH

6h 20m1 stop

2:35 p.m. - 10:05 p.m.IAH-YOW

6h 30m1 stop

C$ 863United Airlines

Find Deal

Mon, 29 Sep - Mon, 29 Sep

5:55 a.m. - 5:48 p.m.YOW-HOU

12h 53m2 stops

2:22 p.m. - 12:42 a.m.HOU-YOW

9h 20m2 stops

C$ 1,579Delta

Find Deal

Wed, 22 Oct - Sun, 26 Oct

WestJet flights from Ottawa to Houston

Our best WestJet deals on Ottawa to Houston flight tickets

WestJet

19 Sep

YOW7:15 p.m.Ottawa

19h 55m

1 stop

IAH2:10 p.m.Houston George Bush Intcntl

23 Sep

IAH8:00 a.m.Houston George Bush Intcntl

21h 45m

1 stop

YOW6:45 a.m.Ottawa

C$ 488

Find similar

WestJet

18 Sep

YOW3:45 p.m.Ottawa

31h 58m

1 stop

IAH10:43 p.m.Houston George Bush Intcntl

22 Sep

IAH8:00 a.m.Houston George Bush Intcntl

15h 40m

1 stop

YOW12:40 a.m.Ottawa

C$ 496

Find similar

WestJet

19 Sep

YOW5:15 p.m.Ottawa

21h 55m

2 stops

IAH2:10 p.m.Houston George Bush Intcntl

23 Sep

IAH3:00 p.m.Houston George Bush Intcntl

14h 45m

1 stop

YOW6:45 a.m.Ottawa

C$ 500

Find similar

United Airlines flights from Ottawa to Houston

Our best United Airlines deals on Ottawa to Houston flight tickets

United Airlines

24 Feb

YOW7:25 p.m.Ottawa

14h 11m

1 stop

IAH8:36 a.m.Houston George Bush Intcntl

25 Feb

IAH12:00 p.m.Houston George Bush Intcntl

8h 56m

1 stop

YOW9:56 p.m.Ottawa

C$ 861

Find similar

United Airlines

29 Sep

YOW6:33 a.m.Ottawa

6h 20m

1 stop

IAH11:53 a.m.Houston George Bush Intcntl

29 Sep

IAH2:35 p.m.Houston George Bush Intcntl

6h 30m

1 stop

YOW10:05 p.m.Ottawa

C$ 863

Find similar

United Airlines

26 Dec

YOW5:09 p.m.Ottawa

7h 03m

1 stop

IAH11:12 p.m.Houston George Bush Intcntl

31 Dec

IAH5:05 p.m.Houston George Bush Intcntl

5h 49m

1 stop

YOW11:54 p.m.Ottawa

C$ 870

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Wed 17/9

7:00 a.m.-6:12 p.m.

2 stops12h 12m

Houston George Bush Intcntl

Fri 26/9

3:00 p.m.-1:00 p.m.

1 stop21h 00m

C$ 487

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Fri 19/9

7:15 p.m.-2:10 p.m.

1 stop19h 55m

Houston George Bush Intcntl

Tue 23/9

8:00 a.m.-6:45 a.m.

1 stop21h 45m

C$ 488

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Thu 18/9

3:45 p.m.-10:43 p.m.

1 stop31h 58m

Houston George Bush Intcntl

Mon 22/9

8:00 a.m.-12:40 a.m.

1 stop15h 40m

C$ 496

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Fri 19/9

5:15 p.m.-2:10 p.m.

2 stops21h 55m

Houston George Bush Intcntl

Tue 23/9

3:00 p.m.-6:45 a.m.

1 stop14h 45m

C$ 500

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sat 8/11

9:20 a.m.-5:42 p.m.

1 stop9h 22m

Houston George Bush Intcntl

Mon 10/11

1:35 p.m.-12:40 a.m.

1 stop10h 05m

C$ 506

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Thu 18/9

5:15 p.m.-10:43 p.m.

2 stops30h 28m

Houston George Bush Intcntl

Mon 22/9

5:37 a.m.-5:20 p.m.

1 stop10h 43m

C$ 507

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Wed 17/9

3:45 p.m.-2:10 p.m.

1 stop23h 25m

Houston George Bush Intcntl

Fri 26/9

3:00 p.m.-6:20 p.m.

1 stop26h 20m

C$ 510

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Tue 24/2

7:25 p.m.-8:36 a.m.

1 stop14h 11m

Houston George Bush Intcntl

Wed 25/2

12:00 p.m.-9:56 p.m.

1 stop8h 56m

C$ 861

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Mon 29/9

6:33 a.m.-11:53 a.m.

1 stop6h 20m

Houston George Bush Intcntl

Mon 29/9

2:35 p.m.-10:05 p.m.

1 stop6h 30m

C$ 863

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Wed 22/10

5:55 a.m.-5:48 p.m.

2 stops12h 53m

Houston Hobby

Sun 26/10

2:22 p.m.-12:42 a.m.

2 stops9h 20m

C$ 1,579

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 C$ 780. The month of September is another great option to travel to Houston, with average flight prices from Ottawa averaging around C$ 789.

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 C$ 818. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Ottawa to Houston on a Sunday will generally be more expensive and average around C$ 968. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our most recent data shows that the best time of day to fly to Houston is at noon. Flights from Ottawa to Houston during this time can be as low as C$ 863. In contrast, the most expensive time of day to depart to Houston is in the afternoon when prices are around C$ 954.

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 C$ 927 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 C$ 675 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.

Search flight deals

How far is Ottawa to Houston by plane?
Houston is 2442.2 km away from Ottawa. By plane, this route typically takes 6h 20m.
When did momondo last update prices for flights from Ottawa Airport to Houston?
Prices for flights from Ottawa Airport to Houston are refreshed on a daily basis.
How many operators does momondo search for flights from Ottawa Airport to Houston?
As of August 2025, there are 2 operators available to choose from for flights from Ottawa Airport to Houston.
How old do you have to be to fly from Ottawa Airport to Houston?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, 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 you'll need for your trip to Houston may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Houston. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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 C$ 667	Free Cancellation	Rating 7.1 10,000 reviews		Search Air Canada flights
United Airlines	PriceFrom C$ 724	Free Cancellation	Rating 7.4 8,944 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 recognizable 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?

Yes. All flights to Houston from Ottawa on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Ottawa to Houston?

Once all potential Ottawa to Houston flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ottawa to Houston right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Ottawa to Houston flights. All you need is a valid email address and we will do the rest; it is that quick and easy.