HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Houston

$137+ Cheap flights from Ontario to Houston

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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — HOU
Jan 19 — Jan 261
Mon 1/19
Mon 1/26
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Houston with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Ontario to Houston

Cheapest flights from Ontario to Houston
Explore the most affordable flight options available from Ontario to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 20, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:40 amYYZ - IAH
1 stop24h 20mMultiple Airlines
Sun 1/118:13 pmIAH - YYZ
1 stop26h 58mMultiple Airlines
Deal found 12/18$403
This Kiwi.com deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:00 amYYZ - IAH
2 stops16h 55mMultiple Airlines
Tue 1/68:13 pmIAH - YYZ
1 stop14h 33mMultiple Airlines
Deal found 12/20$435
This Kiwi.com deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/293:10 pmYYZ - IAH
1 stop24h 15mMultiple Airlines
Wed 1/287:45 amIAH - YYZ
1 stop14h 35mMultiple Airlines
Deal found 12/19$519
This Kiwi.com deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:15 amYTZ - IAH
1 stop9h 08mMultiple Airlines
Sun 1/118:13 pmIAH - YTZ
2 stops15h 56mMultiple Airlines
Deal found 12/18$554
This Kiwi.com deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:00 amYYZ - IAH
1 stop11h 50mMultiple Airlines
Sun 1/48:59 pmIAH - YYZ
2 stops37h 36mMultiple Airlines
Deal found 12/18$563
This Kiwi.com deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2110:15 pmYYZ - IAH
2 stops41h 10mMultiple Airlines
Thu 1/88:13 pmIAH - YYZ
1 stop17h 07mMultiple Airlines
Deal found 12/19$571
This Kiwi.com deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/198:20 pmYYZ - IAH
2 stops24h 18mMultiple Airlines
Tue 1/137:45 amIAH - YYZ
1 stop10h 17mMultiple Airlines
Deal found 12/18$584
This Mytrip deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:25 pmYUL - IAH
2 stops16h 38mMultiple Airlines
Sun 1/187:27 pmIAH - YUL
2 stops16h 33mMultiple Airlines
Deal found 12/20$653
This Delta deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3112:14 pmYYZ - HOU
1 stop9h 10mDelta
Wed 1/145:04 pmHOU - YYZ
1 stop5h 54mDelta
Deal found 12/20$704
This oojo deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/216:10 pmYHM - IAH
1 stop19h 34mWestJet
Thu 1/86:20 pmIAH - YHM
1 stop18h 02mWestJet
Deal found 12/19$721
This Kiwi.com deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:45 pmYUL - IAH
1 stop25h 43mMultiple Airlines
Thu 1/88:13 pmIAH - YUL
2 stops27h 22mMultiple Airlines
Deal found 12/20$728
This Mytrip deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:15 pmYTZ - IAH
2 stops15h 10mMultiple Airlines
Sat 1/33:09 pmIAH - YTZ
2 stops18h 26mMultiple Airlines
Deal found 12/20$739

Find flight deals from Ontario to Houston

Keep the following information in mind while searching for Ontario to Houston flight deals. Data was last updated December 20, 2025.

Round-trip from

$221
(Trip.com)

One-way from

$137
(oojo)

Popular in

December

Cheapest in

April

Average price

$579
From Ontario to Houston
Search Deals
One-way flight from Ontario to Houston
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($36 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 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 Ontario 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 2,558,603 searches. Data last updated December 20, 2025.
Use the filters below to find and compare flights from Ontario to Houston that are best for you.

Fly from

Ontario

Fly to

Houston

Route

Depart

Return

Price

HamiltonHouston

YHM - IAH

YHMIAH

Hamilton

Fri 1/23

7:00 am-5:10 pm

1 stop11h 10m

Houston George Bush Intcntl

Wed 1/28

6:20 pm-5:17 pm

1 stop21h 57m

$228

HamiltonHouston

YHM - IAH

YHMIAH

Hamilton

Wed 1/14

6:10 pm-12:44 pm

1 stop19h 34m

Houston George Bush Intcntl

Tue 1/20

6:20 pm-5:17 pm

1 stop21h 57m

$235

HamiltonHouston

YHM - IAH

YHMIAH

Hamilton

Fri 1/16

7:00 am-6:58 pm

1 stop12h 58m

Houston George Bush Intcntl

Wed 1/21

6:20 pm-5:17 pm

1 stop21h 57m

$240

HamiltonHouston

YHM - IAH

YHMIAH

Hamilton

Wed 1/7

7:25 am-5:50 pm

1 stop11h 25m

Houston George Bush Intcntl

Wed 1/14

6:20 pm-5:17 pm

1 stop21h 57m

$257

HamiltonHouston

YHM - IAH

YHMIAH

Hamilton

Sat 1/17

7:25 am-8:23 pm

1 stop13h 58m

Houston George Bush Intcntl

Thu 1/22

5:46 am-3:00 pm

1 stop8h 14m

$267

HamiltonHouston

YHM - IAH

YHMIAH

Hamilton

Wed 4/1

6:10 pm-12:45 pm

1 stop19h 35m

Houston George Bush Intcntl

Thu 4/30

8:00 am-12:40 am

1 stop15h 40m

$289

HamiltonHouston

YHM - IAH

YHMIAH

Hamilton

Sat 1/17

7:25 am-11:34 pm

2 stops17h 09m

Houston George Bush Intcntl

Sat 1/24

8:19 pm-2:20 pm

1 stop17h 01m

$304

TorontoHouston

YTZ - IAH

YTZIAH

Toronto Island

Mon 2/9

2:05 pm-8:40 am

2 stops19h 35m

Houston George Bush Intcntl

Fri 2/20

7:30 am-10:03 pm

2 stops13h 33m

$310

TorontoHouston

YTZ - IAH

YTZIAH

Toronto Island

Fri 1/9

2:05 pm-8:40 am

2 stops19h 35m

Houston George Bush Intcntl

Mon 1/12

6:25 am-4:25 pm

1 stop9h 00m

$312

TorontoHouston

YTZ - IAH

YTZIAH

Toronto Island

Fri 1/16

9:25 am-3:08 pm

1 stop6h 43m

Houston George Bush Intcntl

Mon 1/26

8:18 pm-10:03 pm

2 stops24h 45m

$316

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Ontario to Houston

Have a flexible travel schedule? Discover the best time to fly to Houston from Ontario 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 Ontario to Houston

What is the cheapest month to book a flight from Region of Ontario to Houston?

Currently, November is the cheapest month in which you can book a flight from Region of Ontario to Houston (average of $244). Flying from Region of Ontario to Houston in March is currently the most expensive (average of $370). 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 ON to HOU?

Find hourly flight availability from Ontario 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 December 20, 2025.

One of the essential ways to save on airfare from Region of Ontario to Houston is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 17% on airfare.

What is the cheapest day to fly from Region of Ontario to Houston?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Houston. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Region of Ontario to Houston flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Region of Ontario to Houston?

Related info for your journey

Find useful and relevant information for your journey from Ontario to Houston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Region of Ontario to Houston?

    There are many flights that can get you from Region of Ontario to Houston in 12h 44m. Fly via WestJet, Delta, or Alaska Airlines to get the fastest option. There are 1245 mi between Region of Ontario and Houston. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Region of Ontario to Houston one-way?

    $137 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $232 and $249, respectively.

  • What are the most popular routes from Region of Ontario to Houston?

    When deciding which route to take from Region of Ontario to Houston consider Toronto Pearson Intl - Houston Hobby, Toronto Pearson Intl - Houston George Bush Intcntl or Montreal Pierre Elliott Trudeau Intl - Houston Hobby as they are the most popular.

  • Can I find deals for flights from Ontario to Houston that include hotel bookings?

    Yes. In addition to deals on Ontario to Houston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Houston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Houston.

  • Can I find deals for business class flights from Ontario to Houston?

    Yes. Cheapflights offers flight deals from Ontario 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 Region of Ontario to Houston?

    Currently, November is the cheapest month in which you can book a flight from Region of Ontario to Houston (average of $244). Flying from Region of Ontario to Houston in March is currently the most expensive (average of $370). 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 Ontario to Houston

See prices for flight routes from nearby airports that may be better suited for you.
Pearson Intl to Dallas/Fort Worth flights
Vancouver 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
Calgary to Hobby flights
Calgary to George Bush Intcntl flights
Vancouver Intl to Hobby flights
Pearson Intl to Austin flights
Pearson Intl to Love Field flights
Vancouver Intl to George Bush Intcntl flights
Pierre Elliott Trudeau Intl to Hobby flights
Toronto Island to Dallas/Fort Worth flights
Pierre Elliott Trudeau Intl to George Bush Intcntl flights
Vancouver Intl to Austin flights
Victoria to Dallas/Fort Worth flights
Edmonton to Hobby flights
Toronto Island to George Bush Intcntl flights
London to Dallas/Fort Worth flights
Vancouver Intl to Love Field flights
Edmonton to Dallas/Fort Worth flights
Edmonton to George Bush Intcntl flights
Hamilton to Dallas/Fort Worth flights
Hamilton to George Bush Intcntl flights
Québec City to Dallas/Fort Worth flights
Pierre Elliott Trudeau Intl to Austin flights
Calgary to Dallas/Fort Worth flights
Pierre Elliott Trudeau Intl to Love Field flights
Halifax to Dallas/Fort Worth flights
Vancouver Intl to San Antonio flights
Ottawa to Dallas/Fort Worth flights
Pearson Intl to San Antonio flights
Winnipeg to Dallas/Fort Worth flights
Edmonton to Austin flights
Prince George to Dallas/Fort Worth flights
Ottawa to Hobby flights
Regina to Dallas/Fort Worth flights
Pierre Elliott Trudeau Intl to San Antonio flights
Edmonton to Love Field flights
Winnipeg to Hobby flights
Ottawa to George Bush Intcntl flights
Calgary to Austin flights
Hamilton to Love Field flights
Saskatoon to Dallas/Fort Worth flights
Winnipeg to George Bush Intcntl flights
Moncton to Dallas/Fort Worth flights
Halifax to Austin flights

Top 4 airlines flying from Ontario to Houston

Discover the top 4 airlines that operate flights from Ontario 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 2,558,603 searches. Data last updated December 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$240Average$314FlexibilityNo cancel feeOn-time60%
American AirlinesCheapest$261Average$543FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$396Average$630FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$410Average$533FlexibilityNo cancel feeOn-time67%

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.