Find flights
When to book
Airlines
FAQs

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 8/8. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — HOU
8 Jul — 15 Jul1
1 adult

Cheapflights Tip: The best prices from Ottawa to Houston are usually found in October or May, 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 3 July 2025.

Round-trip from

C$ 493

One-way from

C$ 282

Popular in

November

Cheapest in

October

Average price

C$ 869
29/7-5/8
  • 29/7-5/8
  • 2 total stops
  • 27h 10m total
  • Ottawa to Houston
Search Deals
8/8
  • 8/8
  • 2 total stops
  • 14h 50m total
  • Ottawa to Houston
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 74 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

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 3 July 2025.

Tue 29/74:25 p.m.YOW - IAH
1 stop8h 00mMultiple Airlines
Tue 5/88:56 p.m.IAH - YOW
1 stop19h 10mMultiple Airlines
Deal found 1/7C$ 493
Wed 3/93:45 p.m.YOW - IAH
1 stop23h 25mWestJet
Tue 23/93:00 p.m.IAH - YOW
2 stops13h 23mWestJet
Deal found 1/7C$ 575
Fri 15/85:55 a.m.YOW - HOU
2 stops17h 36mWestJet
Fri 22/81:05 p.m.HOU - YOW
2 stops10h 17mWestJet
Deal found 1/7C$ 880

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 July 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

Tue 29/7

4:25 p.m.-11:25 p.m.

1 stop8h 00m

Houston George Bush Intcntl

Tue 5/8

8:56 p.m.-5:06 p.m.

1 stop19h 10m

C$ 493

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Wed 3/9

3:45 p.m.-2:10 p.m.

1 stop23h 25m

Houston George Bush Intcntl

Tue 23/9

3:00 p.m.-5:23 a.m.

2 stops13h 23m

C$ 575

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Fri 15/8

3:55 p.m.-10:12 p.m.

1 stop7h 17m

Houston George Bush Intcntl

Fri 22/8

7:20 a.m.-3:05 p.m.

1 stop6h 45m

C$ 829

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Mon 22/12

6:52 a.m.-6:48 p.m.

1 stop12h 56m

Houston George Bush Intcntl

Sun 28/12

6:20 p.m.-10:07 a.m.

1 stop14h 47m

C$ 869

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Fri 15/8

5:55 a.m.-10:31 p.m.

2 stops17h 36m

Houston Hobby

Fri 22/8

1:05 p.m.-12:22 a.m.

2 stops10h 17m

C$ 880

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Fri 8/8

5:55 a.m.-7:45 p.m.

2 stops14h 50m

C$ 282

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Fri 15/8

7:00 a.m.-7:12 p.m.

3 stops13h 12m

C$ 454

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Fri 15/8

5:55 a.m.-10:31 p.m.

2 stops17h 36m

C$ 540

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Sat 16/8

5:55 a.m.-5:39 p.m.

2 stops12h 44m

C$ 820

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

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 27 June 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$ 477). 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 July 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 3 July 2025.
Read reviews from past customers who have flown Delta,United Airlines, andWestJet 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.
Delta
8.0
Very good
7,982 reviews
Check prices

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews
Check prices

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,861 reviews
Delta
8.0
Very good
7,982 reviews
Check prices

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
WestJet
7.2
Good
2,917 reviews
Delta
8.0
Very good
7,982 reviews
Check prices

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
9,681 reviews
Delta
8.0
Very good
7,982 reviews
Check prices

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

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

    WestJet, at C$ 575, was found to be the cheapest airline from Ottawa to Houston.Alternate airlines to your destination round-trip include Air Canada and United Airlines. WestJet is 31% 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$ 477). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ottawa to Houston

See prices for flight routes from nearby airports that may be better suited for you.
Pearson Intl to Dallas/Fort Worth flights
Pearson Intl to Hobby flights
Pearson Intl to George Bush Intcntl flights
Pierre Elliott Trudeau Intl to Dallas/Fort Worth flights
Pearson Intl to Austin flights
Pierre Elliott Trudeau Intl to Hobby flights
Pearson Intl to Love Field flights
Pierre Elliott Trudeau Intl to George Bush Intcntl flights
Ottawa to Dallas/Fort Worth flights
Toronto Island to Dallas/Fort Worth flights
Pierre Elliott Trudeau Intl to Austin flights
Pierre Elliott Trudeau Intl to El Paso flights
Pierre Elliott Trudeau Intl to Love Field flights
Pearson Intl to San Antonio flights
Ottawa to Love Field flights
Ottawa to Hobby flights
Region of Waterloo Intl to Hobby flights
Ottawa to George Bush Intcntl flights
Ottawa to Austin flights
Hamilton to George Bush Intcntl flights
Hamilton to Hobby flights
Region of Waterloo Intl to Dallas/Fort Worth flights
Pierre Elliott Trudeau Intl to San Antonio flights
Hamilton to Austin flights
Pearson Intl to El Paso flights
Ottawa to San Antonio flights
Pearson Intl to Lubbock flights
Ottawa to El Paso flights
Hamilton to Dallas/Fort Worth flights
Pierre Elliott Trudeau Intl to McAllen flights
Pearson Intl to Corpus Christi flights
Pierre Elliott Trudeau Intl to Waco flights
Pearson Intl to Killeen flights
Pierre Elliott Trudeau Intl to Midland flights
Pearson Intl to Laredo flights
Pearson Intl to Brownsville flights
London to Love Field flights
London to Dallas/Fort Worth flights
Ottawa to Killeen flights

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 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 616AverageC$ 846FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 646AverageC$ 869FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.