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$172+ 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 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — HOU
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from Ottawa to Houston are usually found in May or January, booked 32 days in advance, depart on a Wednesday or Friday and return on a Wednesday

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 September 17, 2025.

Round-trip from

$283
(Kiwi.com)

One-way from

$172
(Kiwi.com)

Popular in

November

Cheapest in

May

Average price

$729
From Ottawa to Houston
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One-way flight from Ottawa to Houston
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Highest demand for flights based on searches. 10% potential increase in price ($80 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 17, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Sat 10/253:50 pmYOW - IAH
1 stop9h 38mMultiple Airlines
Mon 10/276:00 amIAH - YOW
1 stop10h 25mMultiple Airlines
Deal found 9/16$283
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Fri 10/319:30 amYOW - IAH
1 stop25h 03mMultiple Airlines
Mon 11/31:35 pmIAH - YOW
1 stop10h 05mMultiple Airlines
Deal found 9/15$296
This Trip.com deal was found by Cheapflights users on 9/15. 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 11/276:00 amYOW - IAH
1 stop12h 29mWestJet
Tue 12/26:20 pmIAH - YOW
1 stop21h 33mWestJet
Deal found 9/15$301
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 10/279:30 amYOW - IAH
1 stop25h 03mMultiple Airlines
Thu 11/276:20 pmIAH - YOW
1 stop21h 33mMultiple Airlines
Deal found 9/15$312
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Wed 10/84:25 pmYOW - IAH
1 stop17h 08mMultiple Airlines
Sat 10/113:00 pmIAH - YOW
1 stop21h 00mMultiple Airlines
Deal found 9/16$330
This Trip.com deal was found by Cheapflights users on 9/16. 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.
Fri 10/173:50 pmYOW - IAH
1 stop9h 38mMultiple Airlines
Mon 10/206:00 amIAH - YOW
1 stop10h 20mMultiple Airlines
Deal found 9/16$331
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Fri 10/319:30 amYOW - IAH
1 stop25h 03mMultiple Airlines
Sun 11/28:10 pmIAH - YOW
2 stops21h 16mMultiple Airlines
Deal found 9/15$333
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 11/116:00 amYOW - IAH
1 stop12h 29mMultiple Airlines
Mon 11/1710:28 amIAH - YOW
2 stops37h 14mMultiple Airlines
Deal found 9/15$335
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Fri 9/263:50 pmYOW - IAH
1 stop19h 34mMultiple Airlines
Wed 10/151:09 pmIAH - YOW
1 stop27h 11mMultiple Airlines
Deal found 9/15$341
This FlightHub deal was found by Cheapflights users on 9/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/315:40 amYOW - HOU
2 stops18h 20mWestJet
Sun 11/210:13 amHOU - YOW
2 stops13h 29mWestJet
Deal found 9/15$639
This FlightHub deal was found by Cheapflights users on 9/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/95:55 amYOW - HOU
2 stops18h 05mWestJet
Sun 10/126:00 amHOU - YOW
2 stops17h 22mWestJet
Deal found 9/16$644
This FlightHub deal was found by Cheapflights users on 9/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/85:55 amYOW - HOU
2 stops12h 53mWestJet
Sat 10/112:22 pmHOU - YOW
2 stops9h 00mWestJet
Deal found 9/16$656

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 September 17, 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

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 10/17

3:50 pm-12:28 am

1 stop9h 38m

Houston George Bush Intcntl

Mon 10/20

6:00 am-5:20 pm

1 stop10h 20m

$331

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Tue 11/11

6:00 am-5:29 pm

1 stop12h 29m

Houston George Bush Intcntl

Mon 11/17

10:28 am-12:42 am

2 stops37h 14m

$335

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Thu 11/27

5:45 pm-12:44 pm

1 stop19h 59m

Houston George Bush Intcntl

Tue 12/2

6:20 pm-4:51 pm

2 stops21h 31m

$342

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Wed 10/8

3:50 pm-12:28 am

1 stop9h 38m

Houston George Bush Intcntl

Wed 10/15

3:00 pm-1:00 pm

1 stop21h 00m

$354

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sat 11/1

9:25 am-4:51 pm

1 stop8h 26m

Houston George Bush Intcntl

Tue 11/11

4:42 pm-12:42 am

2 stops31h 00m

$386

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sat 10/25

6:00 am-5:20 am

3 stops24h 20m

Houston George Bush Intcntl

Mon 10/27

5:25 am-12:42 am

2 stops18h 17m

$391

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Fri 10/31

5:40 am-5:20 am

3 stops24h 40m

Houston George Bush Intcntl

Sun 11/2

8:10 pm-12:42 am

2 stops27h 32m

$394

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Fri 10/31

5:40 am-11:00 pm

2 stops18h 20m

Houston Hobby

Mon 11/3

10:13 am-12:42 am

2 stops13h 29m

$639

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 37 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 September 12, 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 32 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, September is the cheapest month in which you can book a flight from Ottawa to Houston (average of $230). Flying from Ottawa to Houston in March is currently the most expensive (average of $330). 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 September 17, 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 21% 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 September 17, 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
8,926 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.1

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
8,926 reviews
United Airlines
7.4
Good
8,926 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.1

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
10,000 reviews
United Airlines
7.4
Good
8,926 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Comfort

7.3

Entertainment

7.1

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 12h 29m. WestJet provides one of the quickest options available for as low as $301. Airlines will cover a distance of 1501 mi.

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

    Currently priced at $481, 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 $526. Users have found that Air Canada is 29% 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, September is the cheapest month in which you can book a flight from Ottawa to Houston (average of $230). Flying from Ottawa to Houston in March is currently the most expensive (average of $330). 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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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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$481Average$708FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$526Average$749FlexibilityNo cancel feeOn-time69%

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