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$216+ 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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — HOU
Aug 3 — Aug 101
Mon 8/3
Mon 8/10
1 adult, Economy
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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 July 4, 2026.

This Kiwi.com deal was found by Cheapflights users on 6/30. 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.
Tue 9/17:00 am
YOW
-
IAH
2 stops32h 32m
Multiple Airlines
Mon 9/1412:21 pm
IAH
-
YOW
1 stop10h 27m
Multiple Airlines
Deal found 6/30$402
This Kiwi.com deal was found by Cheapflights users on 6/30. 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 9/2410:05 am
YTZ
-
IAH
1 stop8h 42m
Multiple Airlines
Sun 9/276:42 pm
IAH
-
YTZ
1 stop13h 58m
Multiple Airlines
Deal found 6/30$410
This Kiwi.com deal was found by Cheapflights users on 6/30. 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.
Tue 7/2810:50 am
YYZ
-
IAH
2 stops26h 32m
Multiple Airlines
Tue 8/47:23 pm
IAH
-
YYZ
1 stop23h 42m
Multiple Airlines
Deal found 6/30$410
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 7/166:30 am
YYZ
-
IAH
1 stop9h 20m
Multiple Airlines
Wed 7/221:17 pm
IAH
-
YYZ
1 stop16h 22m
Multiple Airlines
Deal found 6/29$412
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 9/48:40 pm
YTZ
-
IAH
1 stop16h 16m
Multiple Airlines
Mon 9/79:58 pm
IAH
-
YTZ
1 stop10h 42m
Multiple Airlines
Deal found 6/29$415
This Kiwi.com deal was found by Cheapflights users on 6/30. 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.
Tue 7/146:30 am
YYZ
-
IAH
1 stop9h 20m
Multiple Airlines
Tue 8/118:02 pm
IAH
-
YYZ
2 stops14h 58m
Multiple Airlines
Deal found 6/30$415
This Kiwi.com deal was found by Cheapflights users on 6/29. 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.
Tue 8/46:30 am
YYZ
-
IAH
1 stop9h 20m
Multiple Airlines
Wed 8/128:16 am
IAH
-
YYZ
1 stop28h 49m
Multiple Airlines
Deal found 6/29$416
This Kiwi.com deal was found by Cheapflights users on 6/30. 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 10/1510:05 am
YTZ
-
IAH
1 stop8h 42m
Multiple Airlines
Sun 10/186:42 pm
IAH
-
YTZ
1 stop13h 58m
Multiple Airlines
Deal found 6/30$417
This Kiwi.com deal was found by Cheapflights users on 6/30. 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.
Tue 7/146:30 am
YYZ
-
IAH
1 stop9h 20m
Multiple Airlines
Fri 7/248:02 pm
IAH
-
YYZ
2 stops25h 03m
Multiple Airlines
Deal found 6/30$417
This Kiwi.com deal was found by Cheapflights users on 7/1. 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.
Tue 7/146:30 am
YYZ
-
IAH
1 stop9h 20m
Multiple Airlines
Mon 8/38:02 pm
IAH
-
YYZ
2 stops17h 03m
Multiple Airlines
Deal found 7/1$418
This Kiwi.com deal was found by Cheapflights users on 6/30. 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 7/301:40 pm
YTZ
-
IAH
2 stops18h 40m
Multiple Airlines
Wed 9/166:42 pm
IAH
-
YTZ
1 stop13h 58m
Multiple Airlines
Deal found 6/30$419
This Kiwi.com deal was found by Cheapflights users on 7/4. 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.
Sat 8/227:25 am
YYZ
-
IAH
2 stops15h 49m
Multiple Airlines
Mon 8/318:35 am
IAH
-
YYZ
1 stop28h 30m
Multiple Airlines
Deal found 7/4$419

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 July 4, 2026.

Round-trip from

$402
(Kiwi.com)

One-way from

$216
(Kiwi.com)

Popular in

March

Cheapest in

October

Average price

$539
From Ontario to Houston
Search Deals
One-way flight from Ontario to Houston
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($14 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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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 July 4, 2026.
Use the filters below to find and compare flights from Ontario to Houston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Fri 10/2

7:00 am-10:40 am

1 stop28h 40m

Houston George Bush Intcntl

Mon 10/5

12:21 pm-11:48 pm

1 stop10h 27m

$436

TorontoHouston

YYZ - IAH

YYZIAH

Toronto Pearson Intl

Thu 9/17

6:00 am-4:51 pm

1 stop11h 51m

Houston George Bush Intcntl

Mon 9/21

6:35 pm-4:13 pm

1 stop20h 38m

$438

MontrealHouston

YUL - IAH

YULIAH

Montreal Pierre Elliott Trudeau Intl

Tue 10/27

7:45 pm-10:12 am

1 stop15h 27m

Houston George Bush Intcntl

Sat 10/31

10:55 am-9:42 am

1 stop21h 47m

$445

MontrealHouston

YUL - IAH

YULIAH

Montreal Pierre Elliott Trudeau Intl

Tue 10/13

7:00 am-1:31 pm

1 stop7h 31m

Houston George Bush Intcntl

Wed 10/21

7:05 am-6:59 pm

1 stop10h 54m

$485

TorontoHouston

YTZ - IAH

YTZIAH

Toronto Island

Fri 8/21

12:30 pm-7:38 pm

1 stop8h 08m

Houston George Bush Intcntl

Mon 8/24

10:00 am-7:51 pm

1 stop8h 51m

$493

TorontoHouston

YTZ - IAH

YTZIAH

Toronto Island

Thu 7/16

8:50 am-9:03 pm

1 stop13h 13m

Houston George Bush Intcntl

Wed 7/22

9:58 pm-1:05 pm

1 stop14h 07m

$496

MontrealHouston

YUL - IAH

YULIAH

Montreal Pierre Elliott Trudeau Intl

Thu 8/6

7:00 am-1:27 pm

1 stop7h 27m

Houston George Bush Intcntl

Wed 8/12

7:00 am-6:54 pm

1 stop10h 54m

$530

TorontoHouston

YYZ - IAH

YYZIAH

Toronto Pearson Intl

Wed 8/5

8:15 am-7:10 pm

1 stop11h 55m

Houston George Bush Intcntl

Tue 8/18

6:45 am-10:56 am

Nonstop3h 11m

$535

MontrealHouston

YUL - IAH

YULIAH

Montreal Pierre Elliott Trudeau Intl

Sat 10/24

7:00 am-5:06 pm

2 stops11h 06m

Houston George Bush Intcntl

Sun 11/1

8:05 am-5:39 pm

1 stop8h 34m

$535

MontrealHouston

YUL - IAH

YULIAH

Montreal Pierre Elliott Trudeau Intl

Sat 9/12

6:00 am-1:36 pm

1 stop8h 36m

Houston George Bush Intcntl

Tue 9/22

10:00 am-2:50 pm

Nonstop3h 50m

$536

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 60 resultsSorted by cheapest first
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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 $76). Flying from Region of Ontario to Houston in September is currently the most expensive (average of $274). 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 July 4, 2026.

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 at noon tend to be the most expensive. A flight in the morning could potentially save you up to 36% on airfare.

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

How far ahead should I book a flight from Region of Ontario to Houston?

To ensure you get the cheapest price possible for a flight from Region of Ontario to Houston, you should look to book at least 85 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 3h 40m. Fly via Delta, Air Canada, or United Airlines to get the fastest option. There are 1280 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?

    $191 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on United Airlines and Air Canada, with prices starting from $195 and $220, 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 $76). Flying from Region of Ontario to Houston in September is currently the most expensive (average of $274). 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.

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 July 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$240Average$303FlexibilityNo cancel feeOn-time60%
American AirlinesCheapest$261Average$531FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$290Average$609FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$354Average$645FlexibilityNo cancel feeOn-time69%

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