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$91+ Cheap flights from Houston to Ontario

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.
HOU — YYZ
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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Cheap flight deals from Houston to Ontario

Keep the following information in mind while searching for Houston to Ontario flight deals. Data was last updated November 26, 2025.

Round-trip from

$252
(Kiwi.com)

One-way from

$91
(Trip.com)

Popular in

November

Cheapest in

February

Average price

$693
From Houston to Ontario
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One-way flight from Houston to Ontario
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Highest demand for flights based on searches. 8% potential increase in price ($50 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Houston to Ontario

Cheapest flights from Houston to Ontario
Explore the most affordable flight options available from Houston to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 26, 2025.

This Mytrip deal was found by Cheapflights users on 11/24. 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.
Fri 12/126:14 amIAH - YOW
1 stop10h 11mMultiple Airlines
Sat 12/137:00 amYOW - IAH
3 stops27h 15mMultiple Airlines
Deal found 11/24$270
This Mytrip deal was found by Cheapflights users on 11/24. 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.
Fri 12/1210:41 amIAH - YYZ
3 stops34h 54mMultiple Airlines
Mon 12/157:15 amYYZ - IAH
3 stops27h 03mMultiple Airlines
Deal found 11/24$317
This Kiwi.com deal was found by Cheapflights users on 11/24. 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 12/48:23 pmIAH - YYZ
1 stop22h 37mMultiple Airlines
Tue 12/97:15 amYYZ - IAH
1 stop12h 14mMultiple Airlines
Deal found 11/24$318
This Kiwi.com deal was found by Cheapflights users on 11/23. 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 12/236:20 pmIAH - YTZ
1 stop13h 00mMultiple Airlines
Wed 12/319:15 amYTZ - IAH
1 stop9h 08mMultiple Airlines
Deal found 11/23$320
This Mytrip deal was found by Cheapflights users on 11/25. 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.
Fri 12/1210:41 amIAH - YYZ
3 stops34h 54mMultiple Airlines
Tue 12/167:15 amYYZ - IAH
3 stops27h 03mMultiple Airlines
Deal found 11/25$320
This Kiwi.com deal was found by Cheapflights users on 11/23. 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 12/2512:50 pmIAH - YYZ
1 stop27h 22mMultiple Airlines
Wed 12/317:00 amYYZ - IAH
2 stops26h 25mMultiple Airlines
Deal found 11/23$322
This Kiwi.com deal was found by Cheapflights users on 11/25. 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 12/25:34 amIAH - YYZ
2 stops13h 39mMultiple Airlines
Tue 12/97:15 amYYZ - IAH
1 stop12h 14mMultiple Airlines
Deal found 11/25$323
This Kiwi.com deal was found by Cheapflights users on 11/25. 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 12/57:25 pmIAH - YYZ
2 stops23h 48mMultiple Airlines
Tue 12/97:15 amYYZ - IAH
1 stop12h 14mMultiple Airlines
Deal found 11/25$324
This Kiwi.com deal was found by Cheapflights users on 11/25. 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 12/2112:50 pmIAH - YTZ
2 stops32h 13mMultiple Airlines
Wed 12/319:15 amYTZ - IAH
1 stop15h 44mMultiple Airlines
Deal found 11/25$327
This Mytrip deal was found by Cheapflights users on 11/26. 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.
Wed 12/38:54 pmIAH - YYZ
1 stop16h 46mMultiple Airlines
Tue 12/99:35 amYYZ - IAH
1 stop14h 03mMultiple Airlines
Deal found 11/26$327
This Kiwi.com deal was found by Cheapflights users on 11/24. 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 12/25:34 amIAH - YYZ
2 stops13h 39mMultiple Airlines
Thu 12/117:00 amYYZ - IAH
1 stop11h 43mMultiple Airlines
Deal found 11/24$328
This Mytrip deal was found by Cheapflights users on 11/24. 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.
Wed 12/178:23 pmIAH - YUL
2 stops19h 00mMultiple Airlines
Mon 1/56:45 amYUL - IAH
3 stops28h 25mMultiple Airlines
Deal found 11/24$329

Cheapflights Fare Finder

 
Customize your flight search to find flights from Houston to Ontario 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 November 26, 2025.
Use the filters below to find and compare flights from Houston to Ontario that are best for you.

Fly from

Houston

Fly to

Ontario

Route

Depart

Return

Price

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Tue 1/13

7:35 am-5:25 pm

1 stop8h 50m

Ottawa

Wed 2/4

4:15 pm-11:58 pm

1 stop8h 43m

$252

HoustonHamilton

IAH - YHM

IAHYHM

Houston George Bush Intcntl

Wed 1/14

6:20 pm-5:17 pm

1 stop21h 57m

Hamilton

Mon 1/19

7:25 am-11:58 pm

1 stop17h 33m

$263

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Wed 1/7

6:55 pm-5:25 pm

1 stop21h 30m

Ottawa

Fri 1/9

4:20 pm-10:01 am

1 stop18h 41m

$273

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Fri 12/12

10:41 am-12:42 am

2 stops13h 01m

Ottawa

Sat 12/13

7:00 am-9:15 am

3 stops27h 15m

$282

HoustonMontreal

IAH - YUL

IAHYUL

Houston George Bush Intcntl

Fri 2/20

4:20 pm-12:30 am

1 stop7h 10m

Montreal Pierre Elliott Trudeau Intl

Mon 2/23

6:45 am-11:11 am

3 stops29h 26m

$284

HoustonHamilton

IAH - YHM

IAHYHM

Houston George Bush Intcntl

Thu 1/8

6:20 pm-1:22 pm

1 stop18h 02m

Hamilton

Mon 1/12

6:10 pm-5:29 pm

1 stop24h 19m

$288

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Sun 1/25

12:16 pm-11:58 pm

1 stop10h 42m

Ottawa

Tue 1/27

7:00 am-8:28 pm

1 stop14h 28m

$288

HoustonMontreal

IAH - YUL

IAHYUL

Houston George Bush Intcntl

Wed 2/25

7:35 am-4:22 pm

1 stop7h 47m

Montreal Pierre Elliott Trudeau Intl

Fri 2/27

6:45 am-6:33 pm

2 stops12h 48m

$297

HoustonHamilton

IAH - YHM

IAHYHM

Houston George Bush Intcntl

Sat 1/24

8:19 pm-2:20 pm

1 stop17h 01m

Hamilton

Fri 1/30

7:00 am-7:24 pm

1 stop13h 24m

$307

HoustonHamilton

IAH - YHM

IAHYHM

Houston George Bush Intcntl

Wed 1/14

6:20 pm-5:17 pm

1 stop21h 57m

Hamilton

Mon 1/19

6:10 pm-5:29 pm

1 stop24h 19m

$313

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/24

Showing 1-10 of 60 results
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Best time to book a flight from Houston to Ontario

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

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

Currently, November is the cheapest month in which you can book a flight from Houston to Region of Ontario (average of $118). Flying from Houston to Region of Ontario 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 HOU to ON?

Find hourly flight availability from Houston to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 26, 2025.

When flying from Houston to Region of Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 38% versus a flight at noon.

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

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

Travelers seeking maximum savings on their Houston to Region of Ontario flight should consider departing on Saturday mornings when fares are most often at their lowest. Tuesday at noon 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 Houston to Region of Ontario?

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated November 26, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from Houston to Ontario. 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
7.9
Good
7,998 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
7,998 reviews
Delta
7.9
Good
7,998 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,046 reviews
Delta
7.9
Good
7,998 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,038 reviews
Delta
7.9
Good
7,998 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air Canada
7.1
Good
10,476 reviews
Delta
7.9
Good
7,998 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Houston to Ontario. 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 Houston to Region of Ontario?

    Departing from Houston to Region of Ontario will take you 12h 03m. Houston and Region of Ontario are separated by a distance of 1280 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Houston to Region of Ontario (average of $118). Flying from Houston to Region of Ontario 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

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Alternative routes for Houston to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Houston to Ontario

Discover the top 4 airlines that operate flights from Houston to Ontario. 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 November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$218Average$562FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$250Average$711FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$268Average$747FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$453Average$582FlexibilityNo cancel feeOn-time71%

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