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$139+ 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 6/30. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — HOU
May 8 — May 151
Fri 5/8
Fri 5/15
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 April 8, 2026.

This Mytrip deal was found by Cheapflights users on 4/3. 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.
Sun 4/191:15 pm
YUL
-
IAH
1 stop11h 44m
Multiple Airlines
Tue 4/217:00 am
IAH
-
YUL
1 stop16h 30m
Multiple Airlines
Deal found 4/3$327
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 4/136:45 am
YUL
-
IAH
2 stops26h 55m
Multiple Airlines
Tue 4/216:57 pm
IAH
-
YUL
1 stop28h 33m
Multiple Airlines
Deal found 4/6$333
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 5/47:15 pm
YUL
-
IAH
1 stop20h 46m
Multiple Airlines
Mon 5/115:29 pm
IAH
-
YUL
1 stop19h 39m
Multiple Airlines
Deal found 4/6$336
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 5/57:15 pm
YUL
-
IAH
1 stop20h 59m
Multiple Airlines
Tue 6/26:50 am
IAH
-
YUL
1 stop6h 18m
Multiple Airlines
Deal found 4/6$337
This Kiwi.com deal was found by Cheapflights users on 4/4. 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 4/2510:20 am
YUL
-
IAH
2 stops12h 30m
Multiple Airlines
Mon 5/46:50 am
IAH
-
YUL
1 stop6h 18m
Multiple Airlines
Deal found 4/4$339
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 4/294:35 pm
YUL
-
IAH
1 stop18h 08m
Multiple Airlines
Mon 5/45:29 pm
IAH
-
YUL
2 stops30h 08m
Multiple Airlines
Deal found 4/6$341
This Kiwi.com deal was found by Cheapflights users on 4/5. 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 6/158:15 am
YHM
-
IAH
2 stops48h 04m
Multiple Airlines
Mon 6/226:00 am
IAH
-
YHM
1 stop8h 55m
Multiple Airlines
Deal found 4/5$342
This Kiwi.com deal was found by Cheapflights users on 4/3. 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 4/154:35 pm
YUL
-
IAH
1 stop24h 09m
Multiple Airlines
Sat 4/251:07 pm
IAH
-
YUL
1 stop26h 18m
Multiple Airlines
Deal found 4/3$342
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 4/136:45 am
YUL
-
IAH
2 stops26h 55m
Multiple Airlines
Mon 4/207:48 pm
IAH
-
YUL
1 stop27h 42m
Multiple Airlines
Deal found 4/6$344
This Mytrip deal was found by Cheapflights users on 4/6. 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.
Mon 4/207:25 am
YHM
-
IAH
1 stop16h 22m
Multiple Airlines
Sun 4/261:58 pm
IAH
-
YHM
2 stops24h 02m
Multiple Airlines
Deal found 4/6$349
This Kiwi.com deal was found by Cheapflights users on 4/3. 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 5/311:20 am
YTZ
-
IAH
1 stop13h 39m
Multiple Airlines
Sun 5/106:50 am
IAH
-
YTZ
2 stops12h 25m
Multiple Airlines
Deal found 4/3$361
This Kiwi.com deal was found by Cheapflights users on 4/3. 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 6/168:50 am
YTZ
-
IAH
1 stop11h 10m
Multiple Airlines
Sun 6/217:15 pm
IAH
-
YTZ
1 stop11h 45m
Multiple Airlines
Deal found 4/3$362

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 April 8, 2026.

Round-trip from

$327
(Mytrip)

One-way from

$139
(Kiwi.com)

Popular in

March

Cheapest in

October

Average price

$518
From Ontario to Houston
Search Deals
One-way flight from Ontario to Houston
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($25 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 April 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 April 8, 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

HamiltonHouston

YHM - IAH

YHMIAH

Hamilton

Mon 4/20

7:25 am-10:47 pm

1 stop16h 22m

Houston George Bush Intcntl

Sun 4/26

1:58 pm-3:00 pm

2 stops24h 02m

$349

TorontoHouston

YTZ - IAH

YTZIAH

Toronto Island

Tue 5/5

8:25 am-3:14 pm

1 stop7h 49m

Houston George Bush Intcntl

Tue 5/12

6:00 am-9:48 pm

3 stops14h 48m

$366

TorontoHouston

YTZ - IAH

YTZIAH

Toronto Island

Wed 5/6

11:55 am-9:03 am

3 stops22h 08m

Houston George Bush Intcntl

Tue 5/12

6:50 am-9:30 pm

1 stop13h 40m

$368

TorontoHouston

YTZ - IAH

YTZIAH

Toronto Island

Sat 4/18

11:30 am-10:50 pm

2 stops12h 20m

Houston George Bush Intcntl

Sat 4/25

1:07 pm-10:25 am

1 stop20h 18m

$379

TorontoHouston

YYZ - IAH

YYZIAH

Toronto Pearson Intl

Tue 4/21

7:55 am-5:00 pm

1 stop10h 05m

Houston George Bush Intcntl

Wed 4/22

6:09 pm-9:10 am

1 stop14h 01m

$407

MontrealHouston

YUL - IAH

YULIAH

Montreal Pierre Elliott Trudeau Intl

Tue 6/16

8:00 pm-1:55 pm

1 stop18h 55m

Houston George Bush Intcntl

Thu 6/18

6:00 am-12:25 am

2 stops17h 25m

$412

HamiltonHouston

YHM - IAH

YHMIAH

Hamilton

Thu 6/11

6:10 pm-1:55 pm

1 stop20h 45m

Houston George Bush Intcntl

Mon 6/15

6:30 am-5:15 pm

1 stop9h 45m

$432

MontrealHouston

YUL - IAH

YULIAH

Montreal Pierre Elliott Trudeau Intl

Thu 4/30

9:30 am-9:34 pm

1 stop13h 04m

Houston George Bush Intcntl

Sat 5/2

2:30 pm-8:40 am

1 stop17h 10m

$438

TorontoHouston

YYZ - IAH

YYZIAH

Toronto Pearson Intl

Sat 4/25

6:11 pm-10:54 pm

1 stop5h 43m

Houston George Bush Intcntl

Wed 4/29

6:09 pm-9:10 am

1 stop14h 01m

$440

TorontoHouston

YYZ - IAH

YYZIAH

Toronto Pearson Intl

Sat 10/3

11:30 am-4:28 pm

1 stop5h 58m

Houston George Bush Intcntl

Wed 10/14

7:50 am-4:39 pm

1 stop7h 49m

$452

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/5

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 $242). Flying from Region of Ontario to Houston in December is currently the most expensive (average of $350). 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 April 8, 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?

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 10h 05m. Fly via Delta, WestJet, 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?

    $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 United Airlines, with prices starting from $191 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 $242). Flying from Region of Ontario to Houston in December is currently the most expensive (average of $350). 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 April 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$240Average$314FlexibilityNo cancel feeOn-time60%
American AirlinesCheapest$261Average$528FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$404Average$566FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$438Average$628FlexibilityNo cancel feeOn-time69%

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