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

WestJet and Delta are the most popular carriers operating from Ottawa to Houston

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 64% 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.

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 August 2026.

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.

$243 Cheap Flights from Ottawa to Houston in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ottawa to Houston

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:20 pm - 10:40 pmYOW Ottawa-IAH Houston George Bush Intcntl

10h 20m1 stop Calgary

6:30 am - 7:20 pmIAH Houston George Bush Intcntl-YOW Ottawa

11h 50m1 stop Calgary

$310WestJet

Thu, Sep 10 - Fri, Sep 18

12:25 pm - 1:55 pmYOW Ottawa-IAH Houston George Bush Intcntl

26h 30m2 stops Winnipeg Calgary

6:30 am - 7:20 pmIAH Houston George Bush Intcntl-YOW Ottawa

11h 50m1 stop Calgary

$331WestJet

Fri, Sep 25 - Fri, Oct 2

8:15 pm - 1:55 pmYOW Ottawa-IAH Houston George Bush Intcntl

18h 40m1 stop Calgary

6:30 am - 7:20 pmIAH Houston George Bush Intcntl-YOW Ottawa

11h 50m1 stop Calgary

$331WestJet

Fri, Sep 25 - Fri, Oct 2

4:15 pm - 10:40 pmYOW Ottawa-IAH Houston George Bush Intcntl

31h 25m1 stop Calgary

6:30 am - 7:20 pmIAH Houston George Bush Intcntl-YOW Ottawa

11h 50m1 stop Calgary

$357WestJet

Wed, Sep 23 - Fri, Oct 2

5:10 am - 10:53 amYOW Ottawa-IAH Houston George Bush Intcntl

6h 43m1 stop Toronto Pearson Intl

12:00 pm - 6:45 pmIAH Houston George Bush Intcntl-YOW Ottawa

5h 45m1 stop Toronto Pearson Intl

$606Air Canada

Sat, Feb 13 - Sat, Feb 20

9:10 am - 5:08 pmYOW Ottawa-IAH Houston George Bush Intcntl

8h 58m1 stop Toronto Pearson Intl

12:00 pm - 6:45 pmIAH Houston George Bush Intcntl-YOW Ottawa

5h 45m1 stop Toronto Pearson Intl

$610Air Canada

Fri, Feb 12 - Sat, Feb 20

4:36 pm - 12:45 amYOW Ottawa-IAH Houston George Bush Intcntl

9h 09m1 stop Chicago O'Hare Intl

8:40 pm - 2:09 pmIAH Houston George Bush Intcntl-YOW Ottawa

16h 29m1 stop Chicago O'Hare Intl

$678United Airlines

Tue, Dec 22 - Sat, Dec 26

2:00 pm - 12:45 amYOW Ottawa-IAH Houston George Bush Intcntl

11h 45m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl

8:40 pm - 3:07 pmIAH Houston George Bush Intcntl-YOW Ottawa

17h 27m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

$678United Airlines

Tue, Dec 22 - Sat, Dec 26

6:15 am - 7:40 pmYOW Ottawa-IAH Houston George Bush Intcntl

14h 25m1 stop Chicago O'Hare Intl

7:20 am - 9:56 pmIAH Houston George Bush Intcntl-YOW Ottawa

13h 36m2 stops Chicago O'Hare Intl Newark

$678United Airlines

Fri, Feb 12 - Sat, Feb 20

2:00 pm - 1:30 amYOW Ottawa-IAH Houston George Bush Intcntl

12h 30m1 stop Washington, D.C. Dulles Intl

8:40 pm - 3:07 pmIAH Houston George Bush Intcntl-YOW Ottawa

17h 27m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

$678United Airlines

Tue, Dec 22 - Sat, Dec 26

Cheap last minute flights

Enter your travel dates to find the best prices.

1:20 pm - 10:40 pmYOW Ottawa-IAH Houston George Bush Intcntl

10h 20m1 stop Calgary

2:50 pm - 11:35 amIAH Houston George Bush Intcntl-YOW Ottawa

19h 45m2 stops Calgary Winnipeg

$604WestJet

Sat, Aug 22 - Fri, Aug 28

1:20 pm - 10:40 pmYOW Ottawa-IAH Houston George Bush Intcntl

10h 20m1 stop Calgary

6:30 am - 3:20 pmIAH Houston George Bush Intcntl-YOW Ottawa

31h 50m1 stop Calgary

$630WestJet

Sat, Aug 22 - Fri, Aug 28

6:25 pm - 1:55 pmYOW Ottawa-IAH Houston George Bush Intcntl

20h 30m2 stops Toronto Pearson Intl Calgary

2:50 pm - 11:35 amIAH Houston George Bush Intcntl-YOW Ottawa

19h 45m2 stops Calgary Winnipeg

$645WestJet

Sat, Aug 22 - Fri, Aug 28

7:00 am - 3:24 pmYOW Ottawa-IAH Houston George Bush Intcntl

9h 24m1 stop Fort Lauderdale

6:30 am - 7:47 pmIAH Houston George Bush Intcntl-YOW Ottawa

12h 17m2 stops Calgary Winnipeg

$665Multiple Airlines

Mon, Aug 24 - Mon, Aug 31

7:00 am - 3:24 pmYOW Ottawa-IAH Houston George Bush Intcntl

9h 24m1 stop Fort Lauderdale

6:30 am - 5:15 pmIAH Houston George Bush Intcntl-YOW Ottawa

9h 45m1 stop Calgary

$754Multiple Airlines

Mon, Aug 24 - Mon, Aug 31

4:00 pm - 10:11 pmYOW Ottawa-IAH Houston George Bush Intcntl

7h 11m1 stop Toronto Pearson Intl

10:04 am - 5:10 pmIAH Houston George Bush Intcntl-YOW Ottawa

6h 06m1 stop Toronto Pearson Intl

$943Air Canada

Sat, Aug 22 - Fri, Aug 28

7:30 pm - 12:45 amYOW Ottawa-IAH Houston George Bush Intcntl

6h 15m1 stop Washington, D.C. Dulles Intl

5:00 am - 1:59 pmIAH Houston George Bush Intcntl-YOW Ottawa

7h 59m1 stop Chicago O'Hare Intl

$992United Airlines

Sat, Aug 22 - Fri, Aug 28

7:30 pm - 12:45 amYOW Ottawa-IAH Houston George Bush Intcntl

6h 15m1 stop Washington, D.C. Dulles Intl

8:25 am - 5:16 pmIAH Houston George Bush Intcntl-YOW Ottawa

7h 51m1 stop Chicago O'Hare Intl

$993United Airlines

Sat, Aug 22 - Fri, Aug 28

7:30 pm - 12:45 amYOW Ottawa-IAH Houston George Bush Intcntl

6h 15m1 stop Washington, D.C. Dulles Intl

8:25 am - 10:35 pmIAH Houston George Bush Intcntl-YOW Ottawa

13h 10m2 stops Chicago O'Hare Intl Newark

$993United Airlines

Sun, Aug 23 - Wed, Aug 26

6:25 am - 11:46 amYOW Ottawa-IAH Houston George Bush Intcntl

6h 21m1 stop Chicago O'Hare Intl

9:30 am - 5:16 pmIAH Houston George Bush Intcntl-YOW Ottawa

6h 46m1 stop Chicago O'Hare Intl

$993United Airlines

Sun, Aug 23 - Wed, Aug 26

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Delta flights from Ottawa to Houston

Our best Delta deals on Ottawa to Houston flight tickets

Delta

Oct 3

YOW6:55 amOttawa

16h 44m

2 stops

HOU10:39 pmHouston Hobby

Oct 5

HOU6:00 amHouston Hobby

17h 20m

2 stops

YOW12:20 amOttawa

$853

Delta

Oct 1

YOW6:55 amOttawa

16h 44m

2 stops

HOU10:39 pmHouston Hobby

Oct 8

HOU11:12 amHouston Hobby

12h 08m

2 stops

YOW12:20 amOttawa

$935

Delta

Sep 10

YOW6:55 amOttawa

16h 44m

2 stops

HOU10:39 pmHouston Hobby

Sep 18

HOU11:00 amHouston Hobby

12h 20m

2 stops

YOW12:20 amOttawa

$938

WestJet flights from Ottawa to Houston

Our best WestJet deals on Ottawa to Houston flight tickets

WestJet

Sep 10

YOW1:20 pmOttawa

10h 20m

1 stop

IAH10:40 pmHouston George Bush Intcntl

Sep 18

IAH6:30 amHouston George Bush Intcntl

11h 50m

1 stop

YOW7:20 pmOttawa

$310

WestJet

Sep 25

YOW8:15 pmOttawa

18h 40m

1 stop

IAH1:55 pmHouston George Bush Intcntl

Oct 2

IAH6:30 amHouston George Bush Intcntl

11h 50m

1 stop

YOW7:20 pmOttawa

$331

WestJet

Sep 23

YOW4:15 pmOttawa

31h 25m

1 stop

IAH10:40 pmHouston George Bush Intcntl

Oct 2

IAH6:30 amHouston George Bush Intcntl

11h 50m

1 stop

YOW7:20 pmOttawa

$357

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaHouston

YOW Ottawa - IAH Houston George Bush Intcntl

YOWIAH

Ottawa

Thu 9/10

1:20 pm-10:40 pm

1 stop10h 20m

Houston George Bush Intcntl

Fri 9/18

6:30 am-7:20 pm

1 stop11h 50m

$310

OttawaHouston

YOW Ottawa - IAH Houston George Bush Intcntl

YOWIAH

Ottawa

Fri 9/25

12:25 pm-1:55 pm

2 stops26h 30m

Houston George Bush Intcntl

Fri 10/2

6:30 am-7:20 pm

1 stop11h 50m

$331

OttawaHouston

YOW Ottawa - IAH Houston George Bush Intcntl

YOWIAH

Ottawa

Fri 9/25

8:15 pm-1:55 pm

1 stop18h 40m

Houston George Bush Intcntl

Fri 10/2

6:30 am-7:20 pm

1 stop11h 50m

$331

OttawaHouston

YOW Ottawa - IAH Houston George Bush Intcntl

YOWIAH

Ottawa

Wed 9/23

4:15 pm-10:40 pm

1 stop31h 25m

Houston George Bush Intcntl

Fri 10/2

6:30 am-7:20 pm

1 stop11h 50m

$357

Quickest round-trip

OttawaHouston

YOW Ottawa - IAH Houston George Bush Intcntl

YOWIAH

Ottawa

Sat 2/13

5:10 am-10:53 am

1 stop6h 43m

Houston George Bush Intcntl

Sat 2/20

12:00 pm-6:45 pm

1 stop5h 45m

$606

OttawaHouston

YOW Ottawa - IAH Houston George Bush Intcntl

YOWIAH

Ottawa

Fri 2/12

9:10 am-5:08 pm

1 stop8h 58m

Houston George Bush Intcntl

Sat 2/20

12:00 pm-6:45 pm

1 stop5h 45m

$610

OttawaHouston

YOW Ottawa - IAH Houston George Bush Intcntl

YOWIAH

Ottawa

Tue 12/22

4:36 pm-12:45 am

1 stop9h 09m

Houston George Bush Intcntl

Sat 12/26

8:40 pm-2:09 pm

1 stop16h 29m

$678

OttawaHouston

YOW Ottawa - IAH Houston George Bush Intcntl

YOWIAH

Ottawa

Tue 12/22

2:00 pm-12:45 am

2 stops11h 45m

Houston George Bush Intcntl

Sat 12/26

8:40 pm-3:07 pm

2 stops17h 27m

$678

OttawaHouston

YOW Ottawa - IAH Houston George Bush Intcntl

YOWIAH

Ottawa

Fri 2/12

6:15 am-7:40 pm

1 stop14h 25m

Houston George Bush Intcntl

Sat 2/20

7:20 am-9:56 pm

2 stops13h 36m

$678

OttawaHouston

YOW Ottawa - IAH Houston George Bush Intcntl

YOWIAH

Ottawa

Tue 12/22

2:00 pm-1:30 am

1 stop12h 30m

Houston George Bush Intcntl

Sat 12/26

8:40 pm-3:07 pm

2 stops17h 27m

$678

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 typical price of a round-trip flight between Ottawa and Houston?

Prices are currently low for flights on this route.

Typical prices usually range from $662 to $847.
The lowest price recently found on this route was $310.

What is the cheapest month to fly to Houston?

The month of October is, on average, the cheapest month to fly to Houston from Ottawa, with most prices found around $512. The month of May is another great option to travel to Houston, with average flight prices from Ottawa averaging around $626.

Cheap Ottawa to Houston flight deals and tips

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

Best Price Found	$243
Fastest flight time	6h 15m
Direct flights	None

The best one-way flight to Houston from Ottawa in the past 72 hours is $243. The best round-trip flight deal from Ottawa to Houston found on momondo in the last 72 hours is $310.

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.

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 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?
There are 2 operators available for flights from Ottawa Airport to Houston as of August 2026.
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 Airlines	PriceFrom $354	Free Cancellation	Rating 7.4 10,104 reviews		Search United Airlines flights
Air Canada	PriceFrom $404	Free Cancellation	Rating 7.1 11,505 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.

An easier way to manage your Houston trip

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Cheap flights from Ottawa to Houston from $243

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 10/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from Ottawa to Houston

Our best Delta deals on Ottawa to Houston flight tickets

WestJet flights from Ottawa to Houston

Our best WestJet deals on Ottawa to Houston flight tickets

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How to get the cheapest flight ticket from Ottawa to Houston

What is the typical price of a round-trip flight between Ottawa and Houston?

What is the cheapest month to fly to Houston?

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

What airlines fly to Houston?

Cheap Ottawa to Houston flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Ottawa to Houston

Best airlines flying from Ottawa to Houston

Compare and see reviews for airlines that fly from Ottawa to Houston with momondo

Why use momondo?

An easier way to manage your Houston trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

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Fly your favorite airline to Houston

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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