HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$133+ 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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — YYZ
ago. 23 — ago. 301
sáb. 8/23
sáb. 8/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Houston to Ontario 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 Houston to Ontario

Keep the following information in mind while searching for Houston to Ontario flight deals. Data was last updated agosto 18, 2025.

Round-trip from

$294
(oojo)

One-way from

$133
(Trip.com)

Popular in

March

Cheapest in

February

Average price

$615
From Houston to Ontario
Search Deals
One-way flight from Houston to Ontario
Search Deals
High demand for flights, 8% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

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 agosto 18, 2025.

This oojo deal was found by Cheapflights users on 8/17. 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.
vie. 9/128:00 amIAH - YHM
1 stop15h 40mWestJet
lun. 9/156:00 amYHM - IAH
1 stop17h 43mWestJet
Deal found 8/17$294
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
mié. 10/298:31 pmIAH - YYZ
1 stop17h 09mMultiple Airlines
dom. 11/211:10 pmYYZ - IAH
2 stops24h 25mMultiple Airlines
Deal found 8/18$296
This Trip.com deal was found by Cheapflights users on 8/17. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/138:00 amIAH - YHM
1 stop15h 40mWestJet
lun. 9/156:00 amYHM - IAH
1 stop17h 43mWestJet
Deal found 8/17$297
This Kiwi.com deal was found by Cheapflights users on 8/17. 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.
mié. 9/243:00 pmIAH - YYZ
2 stops14h 47mMultiple Airlines
lun. 9/297:45 amYYZ - IAH
1 stop7h 48mMultiple Airlines
Deal found 8/17$298
This Kiwi.com deal was found by Cheapflights users on 8/17. 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.
sáb. 9/65:30 amIAH - YYZ
1 stop16h 10mMultiple Airlines
lun. 9/87:45 amYYZ - IAH
1 stop7h 48mMultiple Airlines
Deal found 8/17$299
This Kiwi.com deal was found by Cheapflights users on 8/16. 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.
dom. 9/1411:59 amIAH - YYZ
2 stops17h 53mMultiple Airlines
mar. 9/166:30 amYYZ - IAH
1 stop12h 42mMultiple Airlines
Deal found 8/16$300
This Kiwi.com deal was found by Cheapflights users on 8/17. 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.
lun. 9/89:29 amIAH - YYZ
1 stop9h 16mMultiple Airlines
vie. 9/1911:00 amYYZ - IAH
1 stop8h 33mMultiple Airlines
Deal found 8/17$301
This Kiwi.com deal was found by Cheapflights users on 8/17. 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.
mar. 9/93:00 pmIAH - YYZ
1 stop14h 52mMultiple Airlines
vie. 9/1911:00 amYYZ - IAH
1 stop8h 33mMultiple Airlines
Deal found 8/17$302
This Kiwi.com deal was found by Cheapflights users on 8/17. 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.
mié. 9/245:30 amIAH - YYZ
1 stop10h 06mMultiple Airlines
mar. 9/306:30 amYYZ - IAH
1 stop12h 42mMultiple Airlines
Deal found 8/17$303
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
vie. 10/175:42 pmIAH - YYZ
2 stops19h 43mMultiple Airlines
lun. 10/206:30 amYYZ - IAH
1 stop18h 54mMultiple Airlines
Deal found 8/18$304
This Kiwi.com deal was found by Cheapflights users on 8/16. 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.
mar. 9/239:29 amIAH - YYZ
2 stops19h 43mMultiple Airlines
mar. 9/306:30 amYYZ - IAH
1 stop12h 42mMultiple Airlines
Deal found 8/16$305
This FlightHub deal was found by Cheapflights users on 8/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/123:00 pmIAH - YYZ
2 stops13h 51mWestJet
sáb. 9/271:30 pmYYZ - IAH
1 stop10h 13mWestJet
Deal found 8/17$306

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 agosto 18, 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

HoustonHamilton

IAH - YHM

IAHYHM

Houston George Bush Intcntl

vie. 9/12

8:00 am-12:40 am

1 stop15h 40m

Hamilton

lun. 9/15

6:00 am-10:43 pm

1 stop17h 43m

$294

HoustonToronto

IAH - YYZ

IAHYYZ

Houston George Bush Intcntl

mié. 10/29

8:31 pm-2:40 pm

1 stop17h 09m

Toronto Pearson Intl

dom. 11/2

11:10 pm-10:35 pm

2 stops24h 25m

$296

HoustonMontreal

IAH - YUL

IAHYUL

Houston George Bush Intcntl

mar. 2/10

5:45 am-4:28 pm

1 stop9h 43m

Montreal Pierre Elliott Trudeau Intl

mié. 2/18

8:00 am-8:33 pm

1 stop13h 33m

$297

HoustonHamilton

IAH - YHM

IAHYHM

Houston George Bush Intcntl

sáb. 9/13

8:00 am-12:40 am

1 stop15h 40m

Hamilton

lun. 9/15

6:00 am-10:43 pm

1 stop17h 43m

$297

HoustonToronto

IAH - YYZ

IAHYYZ

Houston George Bush Intcntl

vie. 11/28

6:20 pm-6:13 am

1 stop10h 53m

Toronto Pearson Intl

dom. 11/30

6:30 pm-12:44 pm

1 stop19h 14m

$298

HoustonToronto

IAH - YYZ

IAHYYZ

Houston George Bush Intcntl

sáb. 10/18

12:35 pm-2:25 pm

2 stops24h 50m

Toronto Pearson Intl

mié. 10/22

6:30 am-7:21 pm

1 stop13h 51m

$298

HoustonToronto

IAH - YYZ

IAHYYZ

Houston George Bush Intcntl

vie. 12/12

6:20 pm-6:13 am

1 stop10h 53m

Toronto Pearson Intl

lun. 12/15

6:30 am-5:29 pm

1 stop11h 59m

$298

HoustonToronto

IAH - YYZ

IAHYYZ

Houston George Bush Intcntl

mar. 10/14

8:31 pm-2:05 pm

1 stop16h 34m

Toronto Pearson Intl

mar. 10/21

2:00 pm-5:46 am

2 stops16h 46m

$298

HoustonToronto

IAH - YYZ

IAHYYZ

Houston George Bush Intcntl

dom. 9/14

11:59 am-6:52 am

2 stops17h 53m

Toronto Pearson Intl

mar. 9/16

6:30 am-6:12 pm

1 stop12h 42m

$300

HoustonToronto

IAH - YYZ

IAHYYZ

Houston George Bush Intcntl

lun. 9/8

9:29 am-7:45 pm

1 stop9h 16m

Toronto Pearson Intl

vie. 9/19

11:00 am-6:33 pm

1 stop8h 33m

$301

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

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

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, January is the cheapest month in which you can book a flight from Houston to Region of Ontario (average of $243). Flying from Houston to Region of Ontario in August is currently the most expensive (average of $348). 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 agosto 18, 2025.

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

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 agosto 18, 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
8.0
Very good
7,981 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,925 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
9,992 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 5h 05m. Houston and Region of Ontario are separated by a distance of 1296 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, January is the cheapest month in which you can book a flight from Houston to Region of Ontario (average of $243). Flying from Houston to Region of Ontario in August is currently the most expensive (average of $348). 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 Houston to Ontario

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

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 agosto 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$218Average$562FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$244Average$704FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$255Average$723FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$453Average$582FlexibilityNo cancel feeOn-time71%

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.