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$154+ Cheap flights from Ottawa (YOW) to Houston

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — HOU
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Cheapflights Tip: The best prices from Ottawa to Houston are usually found in May or January, booked 67 days in advance, depart on a Wednesday or Friday and return on a Wednesday

Find flight deals from Ottawa to Houston

Cheapest flights from Ottawa to Houston
Explore the most affordable flight options available from Ottawa to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.

This Mytrip deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/67:00 amYOW - IAH
3 stops27h 15mMultiple Airlines
Sat 12/1310:41 amIAH - YOW
1 stop12h 44mMultiple Airlines
Deal found 11/2$249
This Trip.com deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/34:15 pmYOW - IAH
1 stop9h 26mMultiple Airlines
Thu 12/1110:41 amIAH - YOW
1 stop12h 44mMultiple Airlines
Deal found 11/2$269
This Trip.com deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/117:00 amYOW - IAH
1 stop11h 43mMultiple Airlines
Mon 12/156:14 amIAH - YOW
1 stop17h 11mMultiple Airlines
Deal found 11/3$295
This Kiwi.com deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/174:15 pmYOW - IAH
1 stop17h 56mMultiple Airlines
Wed 12/38:54 pmIAH - YOW
1 stop26h 31mMultiple Airlines
Deal found 11/3$298
This Kiwi.com deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/24:15 pmYOW - IAH
1 stop9h 26mMultiple Airlines
Tue 12/98:07 pmIAH - YOW
2 stops21h 18mMultiple Airlines
Deal found 11/2$300
This Kiwi.com deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/174:15 pmYOW - IAH
1 stop17h 56mMultiple Airlines
Wed 11/268:08 pmIAH - YOW
1 stop20h 05mMultiple Airlines
Deal found 11/2$302
This American Airlines deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/610:00 amYOW - HOU
2 stops11h 18mAmerican Airlines
Sat 12/135:44 amHOU - YOW
2 stops10h 07mAmerican Airlines
Deal found 11/3$513
This Delta deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/25:40 amYOW - HOU
2 stops28h 54mDelta
Tue 12/910:39 amHOU - YOW
2 stops13h 03mDelta
Deal found 11/2$631
This Delta deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/115:40 amYOW - HOU
2 stops18h 08mDelta
Mon 12/156:00 amHOU - YOW
2 stops17h 42mDelta
Deal found 11/3$635
This American Airlines deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1110:00 amYOW - HOU
2 stops10h 47mAmerican Airlines
Thu 12/185:40 amHOU - YOW
2 stops10h 11mAmerican Airlines
Deal found 11/2$756
This American Airlines deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/226:45 amYOW - HOU
3 stops14h 05mAmerican Airlines
Mon 11/246:42 pmHOU - YOW
2 stops21h 07mAmerican Airlines
Deal found 11/3$781
This Rumbo deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/65:40 amYOW - HOU
2 stops12h 53mWestJet
Sat 12/1310:39 amHOU - YOW
2 stops13h 03mWestJet
Deal found 11/2$785

Cheap flight deals from Ottawa to Houston

Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) to Houston (HO1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 3, 2025.

Round-trip from

$249
(Mytrip)

One-way from

$154
(Mytrip)

Popular in

August

Cheapest in

May

Average price

$837
From Ottawa to Houston
Search Deals
One-way flight from Ottawa to Houston
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($64 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated November 3, 2025.
Use the filters below to find and compare flights from Ottawa to Houston that are best for you.

Fly from

Ottawa

Fly to

Houston

Route

Depart

Return

Price

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sat 12/6

7:00 am-9:15 am

3 stops27h 15m

Houston George Bush Intcntl

Sat 12/13

10:41 am-12:25 am

1 stop12h 44m

$249

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Wed 12/3

4:15 pm-12:41 am

1 stop9h 26m

Houston George Bush Intcntl

Thu 12/11

10:41 am-12:25 am

1 stop12h 44m

$269

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Mon 12/1

9:30 am-9:01 am

3 stops24h 31m

Houston George Bush Intcntl

Mon 12/8

5:33 am-12:25 am

2 stops17h 52m

$314

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Mon 12/1

4:15 pm-9:01 am

1 stop17h 46m

Houston George Bush Intcntl

Thu 12/18

5:46 am-5:13 pm

1 stop10h 27m

$318

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Thu 12/11

6:45 am-5:43 pm

2 stops11h 58m

Houston George Bush Intcntl

Mon 12/15

6:14 am-12:25 am

1 stop17h 11m

$321

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Sat 12/6

10:00 am-8:18 pm

2 stops11h 18m

Houston Hobby

Sat 12/13

5:44 am-4:51 pm

2 stops10h 07m

$513

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Wed 2/11

10:00 am-10:46 pm

2 stops13h 46m

Houston Hobby

Sun 2/15

6:00 am-4:51 pm

2 stops9h 51m

$537

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Tue 12/2

5:40 am-9:34 am

2 stops28h 54m

Houston Hobby

Tue 12/9

10:39 am-12:42 am

2 stops13h 03m

$631

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Thu 12/11

5:40 am-10:48 pm

2 stops18h 08m

Houston Hobby

Mon 12/15

6:00 am-12:42 am

2 stops17h 42m

$635

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Fri 1/16

5:40 am-10:21 am

2 stops29h 41m

Houston Hobby

Mon 1/19

5:04 pm-12:42 am

2 stops30h 38m

$722

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

Showing 1-10 of 25 results
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Best time to book a flight from Ottawa to Houston

Have a flexible travel schedule? Discover the best time to fly to Houston from Ottawa with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ottawa to Houston

How far ahead should I book a flight from Ottawa to Houston?

Use this chart to determine the optimal time to book a round-trip flight from Ottawa to Houston. Price data was last updated on October 31, 2025.

The price you pay for your flight from Ottawa to Houston may vary depending on when you book. For the best chance of a lower fare, look to book 66 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Ottawa to Houston?

Currently, December is the cheapest month in which you can book a flight from Ottawa to Houston (average of $290). Flying from Ottawa to Houston in August is currently the most expensive (average of $492). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from YOW to HOU?

Find hourly flight availability from Ottawa to Houston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 3, 2025.

One of the essential ways to save on airfare from Ottawa to Houston is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 19% on airfare.

Reviews of airlines servicing Houston

Get insights into the airlines that provide service to Houston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Houston. Reviews last updated November 3, 2025.
See what other customers who have flown with United Airlines and Air Canada from Ottawa to Houston have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,997 reviews

Comfort

7.3

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

FERNANDO,Sep 2024

YYC - IAH

Everything was good, maybe can give better foof flys more than 4 hours
United Airlines
7.4
Good
8,997 reviews
United Airlines
7.4
Good
8,997 reviews

Comfort

7.3

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

FERNANDO,Sep 2024

YYC - IAH

Everything was good, maybe can give better foof flys more than 4 hours
Air Canada
7.1
Good
10,398 reviews
United Airlines
7.4
Good
8,997 reviews

Comfort

7.3

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
8.0
Excellent

FERNANDO,Sep 2024

YYC - IAH

Everything was good, maybe can give better foof flys more than 4 hours

Related info for your journey

Find useful and relevant information for your journey from Ottawa to Houston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ottawa to Houston?

    Most people fly from Ottawa (YOW) if they book a flight from Ottawa to Houston. On average, Ottawa has 0 outbound flights to Houston per day from 2 airlines. Ottawa is conveniently located just 6.6 mi from Ottawa’s city center.

  • How long is the flight from Ottawa to Houston?

    A quick flight from Ottawa to Houston can take about 11h 18m. American Airlines provides one of the quickest options available for as low as $513. Airlines will cover a distance of 1517 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Ottawa to Houston round-trip?

    Currently priced at $290, Air Canada will fly you from Ottawa to Houston and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $354. Users have found that Air Canada is 56% cheaper than the other options available to this destination.

  • Can I find deals for flights from Ottawa to Houston that include hotel bookings?

    Yes. In addition to deals on Ottawa to Houston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ottawa to Houston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ottawa to Houston.

  • Can I find deals for business class flights from Ottawa to Houston?

    Yes. Cheapflights offers flight deals from Ottawa to Houston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ottawa to Houston?

    Currently, December is the cheapest month in which you can book a flight from Ottawa to Houston (average of $290). Flying from Ottawa to Houston in August is currently the most expensive (average of $492). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Ottawa to Houston

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Top 2 airlines flying from Ottawa to Houston

Discover the top 2 airlines that operate flights from Ottawa to Houston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$290Average$664FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$354Average$640FlexibilityNo cancel feeOn-time69%

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