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$193+ 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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — HOU
Jun 19 — Jun 261
Fri 6/19
Fri 6/26
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 May 20, 2026.

This Kiwi.com deal was found by Cheapflights users on 5/18. 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 9/167:45 am
YYZ
-
IAH
1 stop8h 59m
Multiple Airlines
Tue 9/228:44 pm
IAH
-
YYZ
2 stops19h 01m
Multiple Airlines
Deal found 5/18$361
This Kiwi.com deal was found by Cheapflights users on 5/19. 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.
Tue 7/281:40 pm
YTZ
-
IAH
2 stops18h 40m
Multiple Airlines
Tue 8/189:52 pm
IAH
-
YTZ
1 stop14h 08m
Multiple Airlines
Deal found 5/19$362
This Kiwi.com deal was found by Cheapflights users on 5/19. 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.
Tue 8/46:30 am
YYZ
-
IAH
1 stop9h 20m
Multiple Airlines
Tue 9/154:39 pm
IAH
-
YYZ
1 stop20h 51m
Multiple Airlines
Deal found 5/19$363
This Kiwi.com deal was found by Cheapflights users on 5/16. 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 9/117:45 am
YYZ
-
IAH
1 stop27h 55m
Multiple Airlines
Sat 9/194:39 pm
IAH
-
YYZ
1 stop29h 56m
Multiple Airlines
Deal found 5/16$366
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 8/178:50 am
YTZ
-
IAH
1 stop13h 13m
Multiple Airlines
Wed 9/29:52 pm
IAH
-
YTZ
1 stop10h 48m
Multiple Airlines
Deal found 5/19$375
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 8/178:50 am
YTZ
-
IAH
1 stop13h 13m
Multiple Airlines
Sat 8/299:52 pm
IAH
-
YTZ
1 stop14h 08m
Multiple Airlines
Deal found 5/19$377
This Kiwi.com deal was found by Cheapflights users on 5/19. 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.
Wed 8/197:45 am
YYZ
-
IAH
1 stop11h 24m
Multiple Airlines
Sat 8/299:52 pm
IAH
-
YYZ
2 stops23h 03m
Multiple Airlines
Deal found 5/19$379
This Kiwi.com deal was found by Cheapflights users on 5/19. 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.
Sat 8/158:50 am
YTZ
-
IAH
1 stop13h 13m
Multiple Airlines
Tue 9/19:52 pm
IAH
-
YTZ
1 stop10h 48m
Multiple Airlines
Deal found 5/19$380
This Kiwi.com deal was found by Cheapflights users on 5/19. 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.
Thu 9/109:50 am
YYZ
-
IAH
2 stops13h 16m
Multiple Airlines
Mon 9/218:36 am
IAH
-
YYZ
1 stop11h 19m
Multiple Airlines
Deal found 5/19$381
This Kiwi.com deal was found by Cheapflights users on 5/19. 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.
Sat 8/158:50 am
YTZ
-
IAH
1 stop13h 13m
Multiple Airlines
Sat 8/299:52 pm
IAH
-
YTZ
1 stop14h 08m
Multiple Airlines
Deal found 5/19$382
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 9/1310:05 am
YTZ
-
IAH
1 stop8h 42m
Multiple Airlines
Thu 10/16:42 pm
IAH
-
YTZ
1 stop13h 58m
Multiple Airlines
Deal found 5/19$384
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 7/2710:50 am
YTZ
-
IAH
2 stops22h 55m
Multiple Airlines
Tue 8/189:52 pm
IAH
-
YTZ
1 stop14h 08m
Multiple Airlines
Deal found 5/19$388

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 May 20, 2026.

Round-trip from

$361
(Kiwi.com)

One-way from

$193
(Kiwi.com)

Popular in

March

Cheapest in

October

Average price

$571
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 May 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 May 20, 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

MontrealHouston

YUL - IAH

YULIAH

Montreal Pierre Elliott Trudeau Intl

Thu 7/16

7:44 pm-9:44 pm

1 stop27h 00m

Houston George Bush Intcntl

Mon 7/20

6:35 pm-8:32 am

1 stop12h 57m

$465

MontrealHouston

YUL - IAH

YULIAH

Montreal Pierre Elliott Trudeau Intl

Tue 6/16

6:50 pm-11:56 pm

1 stop6h 06m

Houston George Bush Intcntl

Fri 6/19

6:38 pm-8:39 am

1 stop13h 01m

$468

TorontoHouston

YYZ - IAH

YYZIAH

Toronto Pearson Intl

Wed 7/1

4:10 pm-11:56 pm

2 stops8h 46m

Houston George Bush Intcntl

Wed 7/15

5:30 am-1:34 pm

1 stop7h 04m

$468

TorontoHouston

YYZ - IAH

YYZIAH

Toronto Pearson Intl

Sat 8/22

6:00 am-1:27 pm

1 stop8h 27m

Houston George Bush Intcntl

Wed 8/26

2:27 pm-11:14 pm

1 stop7h 47m

$468

TorontoHouston

YYZ - IAH

YYZIAH

Toronto Pearson Intl

Thu 7/2

6:15 am-11:23 am

1 stop6h 08m

Houston George Bush Intcntl

Thu 7/9

10:49 am-11:02 pm

2 stops11h 13m

$468

TorontoHouston

YTZ - IAH

YTZIAH

Toronto Island

Thu 6/25

8:50 am-8:52 pm

1 stop13h 02m

Houston George Bush Intcntl

Sun 7/5

8:49 am-1:00 pm

2 stops27h 11m

$477

TorontoHouston

YTZ - IAH

YTZIAH

Toronto Island

Wed 10/14

12:30 pm-7:52 pm

1 stop8h 22m

Houston George Bush Intcntl

Sat 10/17

10:00 am-9:30 pm

1 stop10h 30m

$478

TorontoHouston

YTZ - IAH

YTZIAH

Toronto Island

Sun 5/31

1:45 pm-10:44 am

2 stops21h 59m

Houston George Bush Intcntl

Sat 6/6

8:12 pm-6:00 pm

1 stop20h 48m

$479

TorontoHouston

YYZ - HOU

YYZHOU

Toronto Pearson Intl

Tue 9/15

11:30 am-4:23 pm

1 stop5h 53m

Houston Hobby

Wed 9/30

6:00 am-12:15 pm

1 stop5h 15m

$479

TorontoHouston

YYZ - IAH

YYZIAH

Toronto Pearson Intl

Sat 9/12

2:10 pm-11:51 pm

2 stops10h 41m

Houston George Bush Intcntl

Mon 9/14

5:55 am-12:15 pm

1 stop5h 20m

$480

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/15

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 May 20, 2026.

When flying from Region of Ontario to Houston, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 78 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 8h 22m. Fly via Delta, Air Canada, or WestJet to get the fastest option. There are 1285 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 American Airlines and Delta, with prices starting from $191 and $240, 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 May 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$240Average$314FlexibilityNo cancel feeOn-time60%
American AirlinesCheapest$261Average$528FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$354Average$647FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$404Average$571FlexibilityNo cancel feeOn-time67%

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