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Cheap flights from Ottawa to Houston from C$ 282

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 29/9. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — HOU
1 Sep — 8 Sep1
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 2 August 2026.

Thu 12/117:05 a.m.
YOW
-
IAH
1 stop9h 01m
Multiple Airlines
Mon 16/114:39 p.m.
IAH
-
YOW
1 stop23h 05m
Multiple Airlines
Deal found 28/7C$ 538
Fri 9/107:00 a.m.
YOW
-
IAH
2 stops40h 06m
Multiple Airlines
Fri 16/106:30 a.m.
IAH
-
YOW
1 stop22h 05m
Multiple Airlines
Deal found 29/7C$ 584
Thu 15/108:40 a.m.
YOW
-
IAH
2 stops15h 00m
Multiple Airlines
Mon 19/1012:21 p.m.
IAH
-
YOW
1 stop10h 27m
Multiple Airlines
Deal found 29/7C$ 612
Fri 9/108:15 p.m.
YOW
-
IAH
1 stop18h 40m
WestJet
Fri 16/106:30 a.m.
IAH
-
YOW
1 stop9h 45m
WestJet
Deal found 29/7C$ 625
Thu 15/101:20 p.m.
YOW
-
IAH
1 stop10h 20m
WestJet
Mon 19/106:30 a.m.
IAH
-
YOW
1 stop11h 50m
WestJet
Deal found 29/7C$ 630
Sat 3/107:00 a.m.
YOW
-
IAH
1 stop8h 13m
Multiple Airlines
Sun 11/108:44 p.m.
IAH
-
YOW
2 stops26h 04m
Multiple Airlines
Deal found 29/7C$ 657
Tue 27/108:00 a.m.
YOW
-
IAH
1 stop8h 44m
Multiple Airlines
Sun 8/118:44 p.m.
IAH
-
YOW
2 stops43h 00m
Multiple Airlines
Deal found 28/7C$ 663
Thu 3/912:25 p.m.
YOW
-
IAH
2 stops11h 15m
WestJet
Mon 7/96:30 a.m.
IAH
-
YOW
1 stop9h 45m
WestJet
Deal found 28/7C$ 674
Sat 10/107:00 a.m.
YOW
-
IAH
1 stop15h 04m
Multiple Airlines
Tue 13/105:09 p.m.
IAH
-
YOW
2 stops23h 26m
Multiple Airlines
Deal found 31/7C$ 677
Sat 22/812:25 p.m.
YOW
-
IAH
2 stops11h 15m
WestJet
Fri 28/86:30 a.m.
IAH
-
YOW
2 stops28h 05m
WestJet
Deal found 30/7C$ 684
Tue 27/1010:20 a.m.
YOW
-
HOU
2 stops10h 29m
American Airlines
Sun 8/116:00 a.m.
HOU
-
YOW
2 stops10h 58m
American Airlines
Deal found 28/7C$ 946
Thu 12/111:00 p.m.
YOW
-
HOU
2 stops21h 27m
American Airlines
Mon 16/118:09 p.m.
HOU
-
YOW
2 stops20h 49m
American Airlines
Deal found 28/7C$ 1,040

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 2 August 2026.

Round-trip from

C$ 538

One-way from

C$ 282

Popular in

September

Cheapest in

October

Average price

C$ 1,187
12/11-16/11
  • 12/11-16/11
  • 2 total stops
  • 32h 06m total
  • Ottawa to Houston
Search Deals
29/9
  • 29/9
  • 2 total stops
  • 15h 14m total
  • Ottawa to Houston
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 56 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
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 2 August 2026.
Use the filters below to find and compare flights from Ottawa to Houston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Mon 31/8

7:00 a.m.-3:24 p.m.

1 stop9h 24m

Houston George Bush Intcntl

Thu 3/9

4:19 p.m.-8:02 p.m.

2 stops26h 43m

C$ 712

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sat 10/10

1:20 p.m.-1:55 p.m.

1 stop25h 35m

Houston George Bush Intcntl

Tue 13/10

2:50 p.m.-5:35 a.m.

1 stop13h 45m

C$ 731

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Mon 31/8

12:25 p.m.-1:55 p.m.

2 stops26h 30m

Houston George Bush Intcntl

Thu 3/9

2:50 p.m.-11:35 a.m.

2 stops19h 45m

C$ 820

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Thu 15/10

3:10 p.m.-11:35 p.m.

1 stop9h 25m

Houston George Bush Intcntl

Mon 19/10

9:30 a.m.-10:35 p.m.

1 stop12h 05m

C$ 839

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Thu 1/10

6:05 a.m.-1:39 p.m.

1 stop8h 34m

Houston George Bush Intcntl

Mon 5/10

2:51 p.m.-11:54 p.m.

1 stop8h 03m

C$ 839
Quickest round-trip

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sat 3/10

5:20 p.m.-10:46 p.m.

1 stop6h 26m

Houston George Bush Intcntl

Tue 6/10

9:30 a.m.-4:38 p.m.

1 stop6h 08m

C$ 839

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Thu 1/10

8:15 p.m.-1:55 p.m.

1 stop18h 40m

Houston George Bush Intcntl

Mon 5/10

6:30 a.m.-5:35 a.m.

1 stop22h 05m

C$ 887

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Tue 27/10

10:20 a.m.-7:49 p.m.

2 stops10h 29m

Houston Hobby

Sun 8/11

6:00 a.m.-5:58 p.m.

2 stops10h 58m

C$ 946

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Thu 12/11

1:00 p.m.-9:27 a.m.

2 stops21h 27m

Houston Hobby

Mon 16/11

8:09 p.m.-5:58 p.m.

2 stops20h 49m

C$ 1,040

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Sat 12/9

6:55 a.m.-10:39 p.m.

2 stops16h 44m

Houston Hobby

Tue 22/9

5:26 p.m.-12:20 a.m.

2 stops29h 54m

C$ 1,075

Flights are sorted by cheapest round-trip flights first.

Deals found on 31/7

Showing 1-10 of 25 resultsSorted by cheapest first
1
2
3

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, October is the cheapest month in which you can book a flight from Ottawa to Houston (average of C$ 717). Flying from Ottawa to Houston in August is currently the most expensive (average of C$ 1,030). 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.

How much does it cost to fly round-trip from Ottawa to Houston?

Airfare is below average for this route at the moment.
Ottawa to Houston flights typically cost between C$ 818 and C$ 1,187 in November.
The cheapest round-trip price found within the last 5 days was C$ 538 on Multiple Airlines (12 Nov-16 Nov).

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 2 August 2026.
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
10,062 reviews
Check prices

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.7

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
10,062 reviews
United Airlines
7.4
Good
10,062 reviews
Check prices

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.7

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
11,418 reviews
United Airlines
7.4
Good
10,062 reviews
Check prices

Overall

7.4

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.7

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 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 9h 25m. WestJet provides one of the quickest options available for as low as C$ 839. Ottawa and Houston are separated by a distance of 2416 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?

    Air Canada, at C$ 310, 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 67% 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, October is the cheapest month in which you can book a flight from Ottawa to Houston (average of C$ 717). Flying from Ottawa to Houston in August is currently the most expensive (average of C$ 1,030). 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

Browse thousands of different options on Cheapflights for your next trip

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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 2 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 310AverageC$ 897FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 495AverageC$ 899FlexibilityNo 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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