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Cheap flights from Houston to Ontario from C$ 146

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 28/1. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — YYZ
15 Jan — 22 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Houston to Ontario

Enter your travel dates to find the best prices.

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 16 December 2025.

Wed 31/1212:50 p.m.IAH - YYZ
1 stop7h 29mMultiple Airlines
Mon 5/18:30 p.m.YYZ - IAH
1 stop13h 33mMultiple Airlines
Deal found 13/12C$ 487
Tue 30/128:36 a.m.IAH - YYZ
1 stop9h 49mMultiple Airlines
Tue 6/18:30 p.m.YYZ - IAH
1 stop13h 33mMultiple Airlines
Deal found 15/12C$ 497
Tue 30/128:36 a.m.IAH - YYZ
1 stop9h 49mMultiple Airlines
Mon 5/18:30 p.m.YYZ - IAH
1 stop13h 33mMultiple Airlines
Deal found 15/12C$ 513
Thu 25/126:55 p.m.IAH - YYZ
2 stops36h 08mMultiple Airlines
Mon 5/18:30 p.m.YYZ - IAH
1 stop13h 33mMultiple Airlines
Deal found 15/12C$ 520
Sat 27/125:54 a.m.IAH - YYZ
1 stop16h 26mMultiple Airlines
Tue 6/18:30 p.m.YYZ - IAH
1 stop13h 33mMultiple Airlines
Deal found 15/12C$ 560
Mon 29/128:36 a.m.IAH - YYZ
1 stop30h 49mMultiple Airlines
Mon 5/18:30 p.m.YYZ - IAH
1 stop13h 33mMultiple Airlines
Deal found 15/12C$ 567
Mon 29/128:36 a.m.IAH - YYZ
1 stop30h 49mMultiple Airlines
Tue 6/111:15 a.m.YYZ - IAH
2 stops22h 10mMultiple Airlines
Deal found 15/12C$ 572
Sat 27/125:54 a.m.IAH - YYZ
1 stop16h 26mMultiple Airlines
Mon 5/18:30 p.m.YYZ - IAH
1 stop13h 33mMultiple Airlines
Deal found 15/12C$ 577
Tue 30/128:57 p.m.IAH - YUL
2 stops26h 33mMultiple Airlines
Mon 12/18:00 a.m.YUL - IAH
1 stop13h 23mMultiple Airlines
Deal found 16/12C$ 581
Mon 29/128:36 a.m.IAH - YUL
1 stop8h 09mMultiple Airlines
Mon 12/18:00 a.m.YUL - IAH
1 stop13h 23mMultiple Airlines
Deal found 16/12C$ 585
Tue 30/128:57 p.m.IAH - YUL
2 stops26h 33mMultiple Airlines
Sun 11/18:00 a.m.YUL - IAH
1 stop25h 40mMultiple Airlines
Deal found 16/12C$ 597
Mon 29/128:36 a.m.IAH - YUL
1 stop8h 09mMultiple Airlines
Tue 6/16:45 a.m.YUL - IAH
2 stops27h 18mMultiple Airlines
Deal found 15/12C$ 599

Find flight deals from Houston to Ontario

Keep the following information in mind while searching for Houston to Ontario flight deals. Data was last updated 16 December 2025.

Round-trip from

C$ 345

One-way from

C$ 146

Popular in

December

Cheapest in

February

Average price

C$ 930
10/2-13/2
  • 10/2-13/2
  • 3 total stops
  • 34h 40m total
  • Houston to Ontario
Search Deals
WestJet
  • WestJet
  • 28/1
  • 1 total stop
  • 21h 57m total
  • Houston to Ontario
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 135 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 629,999 searches. Data last updated 16 December 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

Wed 28/1

5:46 a.m.-3:00 p.m.

1 stop8h 14m

Hamilton

Wed 4/2

7:25 a.m.-11:58 p.m.

1 stop17h 33m

C$ 328

HoustonHamilton

IAH - YHM

IAHYHM

Houston George Bush Intcntl

Wed 14/1

6:20 p.m.-5:17 p.m.

1 stop21h 57m

Hamilton

Wed 21/1

6:10 p.m.-12:44 p.m.

1 stop19h 34m

C$ 352

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Mon 26/1

7:45 a.m.-5:25 p.m.

1 stop8h 40m

Ottawa

Tue 27/1

7:00 a.m.-8:23 p.m.

1 stop14h 23m

C$ 396

HoustonToronto

IAH - YTZ

IAHYTZ

Houston George Bush Intcntl

Sat 24/1

8:18 p.m.-1:09 p.m.

2 stops15h 51m

Toronto Island

Mon 2/2

9:20 a.m.-6:22 p.m.

1 stop10h 02m

C$ 405

HoustonHamilton

IAH - YHM

IAHYHM

Houston George Bush Intcntl

Wed 14/1

6:20 p.m.-5:17 p.m.

1 stop21h 57m

Hamilton

Wed 28/1

6:10 p.m.-12:44 p.m.

1 stop19h 34m

C$ 407

HoustonHamilton

IAH - YHM

IAHYHM

Houston George Bush Intcntl

Tue 5/5

8:00 a.m.-12:40 a.m.

1 stop15h 40m

Hamilton

Tue 12/5

6:00 a.m.-10:40 p.m.

1 stop17h 40m

C$ 427

HoustonHamilton

IAH - YHM

IAHYHM

Houston George Bush Intcntl

Wed 14/1

6:20 p.m.-5:17 p.m.

1 stop21h 57m

Hamilton

Sun 18/1

6:10 p.m.-12:44 p.m.

1 stop19h 34m

C$ 428

HoustonToronto

IAH - YTZ

IAHYTZ

Houston George Bush Intcntl

Tue 27/1

8:45 a.m.-10:03 p.m.

2 stops12h 18m

Toronto Island

Fri 30/1

7:45 a.m.-3:08 p.m.

1 stop8h 23m

C$ 431

HoustonToronto

IAH - YTZ

IAHYTZ

Houston George Bush Intcntl

Tue 27/1

8:45 a.m.-10:03 p.m.

2 stops12h 18m

Toronto Island

Thu 29/1

9:25 a.m.-3:08 p.m.

1 stop6h 43m

C$ 431

HoustonHamilton

IAH - YHM

IAHYHM

Houston George Bush Intcntl

Wed 7/1

6:20 p.m.-5:17 p.m.

1 stop21h 57m

Hamilton

Sun 11/1

6:10 p.m.-12:44 p.m.

1 stop19h 34m

C$ 433

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/12

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 C$ 162). Flying from Houston to Region of Ontario in September is currently the most expensive (average of C$ 383). 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 16 December 2025.

It’s typically best to fly out from Houston to Region of Ontario in the evening. Doing so could potentially save you 68% on the flight price compared to flying in the morning, which is usually more expensive.

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 16 December 2025.
Read through reviews of airlines operating flights from Houston to Ontario, such as United Airlines and Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,094 reviews
Check prices

Entertainment

7.1

Comfort

7.3

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,094 reviews
United Airlines
7.4
Good
9,094 reviews
Check prices

Entertainment

7.1

Comfort

7.3

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
Air Canada
7.1
Good
10,527 reviews
United Airlines
7.4
Good
9,094 reviews
Check prices

Entertainment

7.1

Comfort

7.3

Food

6.6

Overall

7.4

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

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?

    Airlines like WestJet, Alaska Airlines, and Delta fly from Houston to Region of Ontario in about 10h 53m. The time it takes to get you to your destination can typically vary by up to 11h 04m. The distance between Houston and Region of Ontario is about 2086 km. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Houston to Region of Ontario one-way?

    To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at C$ 281. Delta flights start at C$ 282 while deals on United Airlines start at C$ 302 one-way.

  • 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 C$ 162). Flying from Houston to Region of Ontario in September is currently the most expensive (average of C$ 383). 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

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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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Dallas/Fort Worth to Vancouver Intl flights
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George Bush Intcntl to Vancouver Intl flights
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Dallas/Fort Worth to Pierre Elliott Trudeau Intl flights
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Love Field to Pierre Elliott Trudeau Intl flights
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Dallas/Fort Worth to Québec City flights
Hobby to Yellowknife flights
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George Bush Intcntl to Yellowknife flights
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Austin to Halifax flights
Dallas/Fort Worth to Kelowna flights
George Bush Intcntl to St. John's flights
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Top 2 airlines flying from Houston to Ontario

Discover the top 2 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 629,999 searches. Data last updated 16 December 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 347AverageC$ 806FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 369AverageC$ 841FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Houston to Ontario?

When you search for this flight from Houston to Ontario, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Houston to Ontario?

Cheapflights helps you find that perfect flight to Ontario from Houston by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Houston to Ontario with no change fees?

Certainly. Search results for flights to Ontario from Houston shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Houston to Ontario become cheaper?

Of course! You can now track prices for flights from Houston to Ontario and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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