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Cheap flights from Ottawa to Houston from C$ 222

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 30/1. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — HOU
17 Jan — 24 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 18 December 2025.

Fri 19/129:30 a.m.YOW - IAH
1 stop10h 01mMultiple Airlines
Mon 22/127:45 a.m.IAH - YOW
2 stops32h 25mMultiple Airlines
Deal found 16/12C$ 887
Thu 25/129:35 a.m.YOW - IAH
2 stops16h 19mMultiple Airlines
Thu 1/19:34 p.m.IAH - YOW
1 stop25h 24mMultiple Airlines
Deal found 16/12C$ 913
Thu 25/124:00 p.m.YOW - IAH
1 stop6h 39mAir Canada
Thu 1/17:10 a.m.IAH - YOW
1 stop7h 13mAir Canada
Deal found 17/12C$ 1,051
Thu 25/125:09 p.m.YOW - IAH
1 stop8h 21mUnited Airlines
Thu 1/112:22 p.m.IAH - YOW
1 stop8h 34mUnited Airlines
Deal found 15/12C$ 1,134
Sun 21/125:40 a.m.YOW - HOU
2 stops42h 31mWestJet
Sun 28/126:00 a.m.HOU - YOW
2 stops41h 42mWestJet
Deal found 16/12C$ 1,208
Thu 25/125:40 a.m.YOW - HOU
2 stops14h 34mWestJet
Thu 1/13:25 p.m.HOU - YOW
2 stops32h 17mWestJet
Deal found 16/12C$ 1,288
Fri 19/125:40 a.m.YOW - HOU
2 stops37h 10mWestJet
Mon 22/123:25 p.m.HOU - YOW
2 stops32h 17mWestJet
Deal found 15/12C$ 1,316
Sat 20/125:40 a.m.YOW - HOU
2 stops37h 10mWestJet
Sat 27/1210:46 a.m.HOU - YOW
2 stops12h 56mWestJet
Deal found 16/12C$ 1,353
Sat 20/125:40 a.m.YOW - HOU
2 stops33h 58mWestJet
Mon 22/1210:46 a.m.HOU - YOW
2 stops12h 56mWestJet
Deal found 15/12C$ 1,374
Fri 19/126:45 a.m.YOW - HOU
3 stops14h 05mAmerican Airlines
Mon 22/128:20 p.m.HOU - YOW
2 stops19h 31mAmerican Airlines
Deal found 16/12C$ 1,637

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 18 December 2025.

Round-trip from

C$ 357

One-way from

C$ 222

Popular in

August

Cheapest in

October

Average price

C$ 690
25/1-1/2
  • 25/1-1/2
  • 5 total stops
  • 56h 23m total
  • Ottawa to Houston
Search Deals
30/1
  • 30/1
  • 1 total stop
  • 14h 23m total
  • Ottawa to Houston
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 214 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 39 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 18 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

8:19 p.m.-12:39 a.m.

2 stops27h 20m

C$ 357

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Mon 9/2

4:15 p.m.-8:40 a.m.

1 stop17h 25m

Houston George Bush Intcntl

Thu 19/2

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

1 stop10h 05m

C$ 375

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sun 8/2

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

1 stop14h 23m

Houston George Bush Intcntl

Thu 19/2

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

1 stop10h 05m

C$ 393

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Wed 4/2

4:15 p.m.-1:10 p.m.

1 stop21h 55m

Houston George Bush Intcntl

Tue 17/2

4:22 p.m.-5:25 p.m.

1 stop24h 03m

C$ 402

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Fri 20/3

5:40 a.m.-4:32 p.m.

2 stops11h 52m

Houston Hobby

Sun 22/3

5:27 p.m.-12:39 a.m.

2 stops30h 12m

C$ 1,011

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Thu 5/3

5:40 a.m.-4:28 p.m.

2 stops35h 48m

Houston Hobby

Mon 9/3

2:05 p.m.-12:39 a.m.

2 stops9h 34m

C$ 1,047

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Sat 4/4

5:40 a.m.-10:28 p.m.

2 stops17h 48m

Houston Hobby

Sat 11/4

5:27 p.m.-12:39 a.m.

2 stops30h 12m

C$ 1,053

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Sun 25/1

5:40 a.m.-10:21 a.m.

2 stops29h 41m

Houston Hobby

Sun 1/2

5:45 a.m.-12:39 a.m.

2 stops17h 54m

C$ 1,112

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Wed 4/3

5:40 a.m.-4:28 p.m.

2 stops11h 48m

Houston Hobby

Mon 9/3

2:05 p.m.-12:39 a.m.

2 stops9h 34m

C$ 1,117

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Fri 2/1

5:40 a.m.-11:11 p.m.

2 stops18h 31m

Houston Hobby

Thu 8/1

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

2 stops30h 38m

C$ 1,126

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/12

Showing 1-10 of 16 results
1
2

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$ 401). Flying from Ottawa to Houston in August is currently the most expensive (average of C$ 682). 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 18 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 18 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
9,092 reviews
Check prices

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

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
9,092 reviews
United Airlines
7.4
Good
9,092 reviews
Check prices

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

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
10,534 reviews
United Airlines
7.4
Good
9,092 reviews
Check prices

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

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 11h 52m. WestJet provides one of the quickest options available for as low as C$ 1,011. Ottawa and Houston are separated by a distance of 2441 km.

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

    United Airlines, at C$ 487, 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 43% 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$ 401). Flying from Ottawa to Houston in August is currently the most expensive (average of C$ 682). 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 18 December 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 487AverageC$ 869FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 572AverageC$ 856FlexibilityNo 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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