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Cheap flights from Ottawa to Houston from C$ 237

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 25/10. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — HOU
17 Oct — 24 Oct1
1 adult
1 adult, Economy

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 Monday and return on a Tuesday

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 17 September 2025.

Round-trip from

C$ 389

One-way from

C$ 237

Popular in

November

Cheapest in

May

Average price

C$ 1,003
25/10-27/10
  • 25/10-27/10
  • 2 total stops
  • 20h 03m total
  • Ottawa to Houston
Search Deals
25/10
  • 25/10
  • 1 total stop
  • 9h 38m total
  • Ottawa to Houston
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 150 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 32 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 17 September 2025.

Sat 25/103:50 p.m.YOW - IAH
1 stop9h 38mMultiple Airlines
Mon 27/106:00 a.m.IAH - YOW
1 stop10h 25mMultiple Airlines
Deal found 16/9C$ 389
Fri 31/109:30 a.m.YOW - IAH
1 stop25h 03mMultiple Airlines
Mon 3/111:35 p.m.IAH - YOW
1 stop10h 05mMultiple Airlines
Deal found 15/9C$ 407
Thu 27/116:00 a.m.YOW - IAH
1 stop12h 29mWestJet
Tue 2/126:20 p.m.IAH - YOW
1 stop21h 33mWestJet
Deal found 15/9C$ 414
Mon 27/109:30 a.m.YOW - IAH
1 stop25h 03mMultiple Airlines
Thu 27/116:20 p.m.IAH - YOW
1 stop21h 33mMultiple Airlines
Deal found 15/9C$ 429
Wed 8/104:25 p.m.YOW - IAH
1 stop17h 08mMultiple Airlines
Sat 11/103:00 p.m.IAH - YOW
1 stop21h 00mMultiple Airlines
Deal found 16/9C$ 454
Fri 17/103:50 p.m.YOW - IAH
1 stop9h 38mMultiple Airlines
Mon 20/106:00 a.m.IAH - YOW
1 stop10h 20mMultiple Airlines
Deal found 16/9C$ 455
Fri 31/109:30 a.m.YOW - IAH
1 stop25h 03mMultiple Airlines
Sun 2/118:10 p.m.IAH - YOW
2 stops21h 16mMultiple Airlines
Deal found 15/9C$ 458
Tue 11/116:00 a.m.YOW - IAH
1 stop12h 29mMultiple Airlines
Mon 17/1110:28 a.m.IAH - YOW
2 stops37h 14mMultiple Airlines
Deal found 15/9C$ 461
Fri 26/94:25 p.m.YOW - IAH
2 stops29h 49mMultiple Airlines
Wed 15/101:09 p.m.IAH - YOW
1 stop27h 11mMultiple Airlines
Deal found 15/9C$ 469
Thu 9/105:55 a.m.YOW - HOU
2 stops18h 05mWestJet
Sun 12/106:00 a.m.HOU - YOW
2 stops17h 22mWestJet
Deal found 16/9C$ 886
Wed 8/105:55 a.m.YOW - HOU
2 stops12h 53mWestJet
Sat 11/102:22 p.m.HOU - YOW
2 stops9h 00mWestJet
Deal found 16/9C$ 902
Wed 8/105:55 a.m.YOW - HOU
2 stops12h 53mWestJet
Sun 12/106:00 a.m.HOU - YOW
2 stops17h 22mWestJet
Deal found 17/9C$ 940

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 629,999 searches. Data last updated 17 September 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 27/11

6:00 a.m.-5:29 p.m.

1 stop12h 29m

Houston George Bush Intcntl

Tue 2/12

6:20 p.m.-4:53 p.m.

1 stop21h 33m

C$ 414

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Mon 27/10

9:30 a.m.-9:33 a.m.

1 stop25h 03m

Houston George Bush Intcntl

Thu 27/11

6:20 p.m.-4:53 p.m.

1 stop21h 33m

C$ 429

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Fri 17/10

3:50 p.m.-12:28 a.m.

1 stop9h 38m

Houston George Bush Intcntl

Mon 20/10

6:00 a.m.-5:20 p.m.

1 stop10h 20m

C$ 455

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Tue 11/11

6:00 a.m.-5:29 p.m.

1 stop12h 29m

Houston George Bush Intcntl

Mon 17/11

10:28 a.m.-12:42 a.m.

2 stops37h 14m

C$ 461

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Thu 27/11

5:45 p.m.-12:44 p.m.

1 stop19h 59m

Houston George Bush Intcntl

Tue 2/12

6:20 p.m.-4:51 p.m.

2 stops21h 31m

C$ 470

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Wed 8/10

3:50 p.m.-12:28 a.m.

1 stop9h 38m

Houston George Bush Intcntl

Wed 15/10

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

1 stop21h 00m

C$ 487

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sat 1/11

9:25 a.m.-4:51 p.m.

1 stop8h 26m

Houston George Bush Intcntl

Tue 11/11

4:42 p.m.-12:42 a.m.

2 stops31h 00m

C$ 531

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sat 25/10

6:00 a.m.-5:20 a.m.

3 stops24h 20m

Houston George Bush Intcntl

Mon 27/10

5:25 a.m.-12:42 a.m.

2 stops18h 17m

C$ 538

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Fri 31/10

5:40 a.m.-5:20 a.m.

3 stops24h 40m

Houston George Bush Intcntl

Sun 2/11

8:10 p.m.-12:42 a.m.

2 stops27h 32m

C$ 542

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Thu 9/10

5:55 a.m.-11:00 p.m.

2 stops18h 05m

Houston Hobby

Sun 12/10

6:00 a.m.-12:22 a.m.

2 stops17h 22m

C$ 886

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/9

Showing 1-10 of 38 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 12 September 2025.

Booking 32 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ottawa to Houston. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 C$ 364). Flying from Ottawa to Houston in March is currently the most expensive (average of C$ 481). 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 17 September 2025.

A simple way to save on the total cost of your ticket is to fly from Ottawa to Houston in the morning. If you’re flexible enough to do this you can expect to save up to 16% on your trip compared to booking a flight at noon.

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 17 September 2025.
Read reviews from past customers who have flown United Airlines and Air Canada from Ottawa to Houston. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,926 reviews
Check prices

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
Check prices

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
Check prices

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 10.6 km from Ottawa’s city centre.

  • 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 C$ 414. Ottawa and Houston are separated by a distance of 2416 km.

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

    Air Canada, at C$ 664, was found to be the cheapest airline from Ottawa to Houston. An alternate airline flying to your destination would be United Airlines. Air Canada is 29% cheaper than the average price of flights available within the next 90 days 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 C$ 364). Flying from Ottawa to Houston in March is currently the most expensive (average of C$ 481). 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 629,999 searches. Data last updated 17 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 664AverageC$ 876FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 720AverageC$ 909FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ottawa to Houston?

When you search for this flight from Ottawa to Houston, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Ottawa to Houston?

Millions of users choose and trust Cheapflights to book the best flight deals from Ottawa to Houston for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Ottawa to Houston with no change fees?

Certainly. Search results for flights to Houston from Ottawa shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Ottawa to Houston become cheaper?

Yes, Cheapflights offers price alerts on Ottawa to Houston flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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