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Cheap flights from Ottawa to Houston from C$ 200

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 28/1. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — HOU
2 Jan — 9 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ottawa to Houston

Enter your travel dates to find the best prices.

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 3 December 2025.

Wed 31/127:00 a.m.YOW - IAH
3 stops27h 19mMultiple Airlines
Wed 7/110:08 a.m.IAH - YOW
1 stop13h 17mMultiple Airlines
Deal found 3/12C$ 404
Fri 12/129:30 a.m.YOW - IAH
1 stop9h 59mMultiple Airlines
Mon 15/128:07 p.m.IAH - YOW
1 stop20h 06mMultiple Airlines
Deal found 2/12C$ 486
Thu 11/129:30 a.m.YOW - IAH
1 stop9h 59mMultiple Airlines
Sat 13/126:14 a.m.IAH - YOW
1 stop17h 11mMultiple Airlines
Deal found 2/12C$ 504
Sat 6/124:20 p.m.YOW - IAH
1 stop15h 46mMultiple Airlines
Sat 13/127:25 p.m.IAH - YOW
1 stop28h 00mMultiple Airlines
Deal found 1/12C$ 511
Tue 30/127:00 a.m.YOW - IAH
3 stops27h 15mMultiple Airlines
Tue 6/17:45 p.m.IAH - YOW
2 stops20h 08mMultiple Airlines
Deal found 2/12C$ 528
Sat 6/125:40 a.m.YOW - HOU
2 stops12h 53mWestJet
Wed 10/122:32 p.m.HOU - YOW
2 stops9h 10mWestJet
Deal found 3/12C$ 1,160
Wed 31/125:40 a.m.YOW - HOU
2 stops33h 58mWestJet
Wed 7/15:04 p.m.HOU - YOW
2 stops30h 38mWestJet
Deal found 3/12C$ 1,220
Tue 30/125:40 a.m.YOW - HOU
2 stops18h 31mWestJet
Tue 6/15:04 p.m.HOU - YOW
2 stops30h 38mWestJet
Deal found 2/12C$ 1,226
Thu 4/125:40 a.m.YOW - HOU
2 stops18h 08mWestJet
Sun 14/1210:39 a.m.HOU - YOW
2 stops13h 03mWestJet
Deal found 2/12C$ 1,312
Mon 22/125:40 a.m.YOW - HOU
2 stops13h 10mWestJet
Tue 30/1210:46 a.m.HOU - YOW
2 stops36h 56mWestJet
Deal found 2/12C$ 1,315
Sat 6/125:40 a.m.YOW - HOU
2 stops17h 53mWestJet
Sat 13/126:00 a.m.HOU - YOW
2 stops17h 42mWestJet
Deal found 1/12C$ 1,340
Sat 6/126:45 a.m.YOW - HOU
3 stops14h 33mAmerican Airlines
Sat 13/125:44 a.m.HOU - YOW
2 stops10h 07mAmerican Airlines
Deal found 1/12C$ 1,521

Find 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 3 December 2025.

Round-trip from

C$ 344

One-way from

C$ 245

Popular in

November

Cheapest in

October

Average price

C$ 887
25/1-1/2
  • 25/1-1/2
  • 4 total stops
  • 39h 45m total
  • Ottawa to Houston
Search Deals
30/12
  • 30/12
  • 3 total stops
  • 27h 15m total
  • Ottawa to Houston
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (C$ 10 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 629,999 searches. Data last updated 3 December 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

Sun 25/1

4:20 p.m.-8:23 p.m.

3 stops29h 03m

Houston George Bush Intcntl

Sun 1/2

12:16 p.m.-11:58 p.m.

1 stop10h 42m

C$ 344

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Wed 31/12

7:00 a.m.-9:19 a.m.

3 stops27h 19m

Houston George Bush Intcntl

Wed 7/1

10:08 a.m.-12:25 a.m.

1 stop13h 17m

C$ 404

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Thu 22/1

7:00 a.m.-8:23 p.m.

1 stop14h 23m

Houston George Bush Intcntl

Sun 25/1

8:18 p.m.-5:13 p.m.

1 stop19h 55m

C$ 418

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Thu 7/5

3:45 p.m.-10:40 p.m.

1 stop31h 55m

Houston George Bush Intcntl

Tue 12/5

3:00 p.m.-6:55 a.m.

1 stop14h 55m

C$ 432

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Fri 16/1

4:20 p.m.-6:58 p.m.

1 stop27h 38m

Houston George Bush Intcntl

Thu 22/1

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

1 stop10h 05m

C$ 439

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Thu 15/1

9:40 a.m.-4:07 p.m.

1 stop7h 27m

Houston George Bush Intcntl

Thu 22/1

4:35 p.m.-4:53 p.m.

2 stops23h 18m

C$ 460

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Thu 7/5

2:20 p.m.-8:39 a.m.

2 stops19h 19m

Houston Hobby

Tue 12/5

6:03 a.m.-8:01 p.m.

2 stops12h 58m

C$ 978

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Fri 16/1

5:40 a.m.-10:33 p.m.

2 stops17h 53m

Houston Hobby

Fri 23/1

5:04 p.m.-12:42 a.m.

2 stops30h 38m

C$ 1,031

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Thu 15/1

10:00 a.m.-10:46 p.m.

2 stops13h 46m

Houston Hobby

Thu 22/1

4:55 p.m.-4:53 p.m.

2 stops22h 58m

C$ 1,047

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Tue 13/1

10:00 a.m.-10:46 p.m.

2 stops13h 46m

Houston Hobby

Wed 21/1

6:00 a.m.-4:53 p.m.

2 stops9h 53m

C$ 1,086

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/12

Showing 1-10 of 29 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

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

Currently, July is the cheapest month in which you can book a flight from Ottawa to Houston (average of C$ 407). Flying from Ottawa to Houston in August is currently the most expensive (average of C$ 688). 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 3 December 2025.

A simple way to save on the total cost of your ticket is to fly from Ottawa to Houston in the evening. If you’re flexible enough to do this you can expect to save up to 11% on your trip compared to booking a flight in the afternoon.

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 3 December 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
9,063 reviews
Check prices

Boarding

7.7

Food

6.6

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

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
9,063 reviews
United Airlines
7.4
Good
9,063 reviews
Check prices

Boarding

7.7

Food

6.6

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

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
10,496 reviews
United Airlines
7.4
Good
9,063 reviews
Check prices

Boarding

7.7

Food

6.6

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

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 19h 19m. WestJet provides one of the quickest options available for as low as C$ 978. Ottawa and Houston are separated by a distance of 2441 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    United Airlines, at C$ 495, was found to be the cheapest airline from Ottawa to Houston. An alternate airline flying to your destination would be Air Canada. United Airlines is 45% 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, July is the cheapest month in which you can book a flight from Ottawa to Houston (average of C$ 407). Flying from Ottawa to Houston in August is currently the most expensive (average of C$ 688). 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 3 December 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 495AverageC$ 884FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 609AverageC$ 869FlexibilityNo cancel feeOn-time67%
Search Air Canada 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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