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$187+ 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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — YYZ
Aug 17 — Aug 241
Mon 8/17
Mon 8/24
1 adult, Economy
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Cheap 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 July 18, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/16. 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.
Mon 9/148:36 am
IAH
-
YYZ
1 stop11h 19m
Multiple Airlines
Wed 9/309:30 am
YYZ
-
IAH
1 stop30h 36m
Multiple Airlines
Deal found 7/16$287
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 8/318:35 am
IAH
-
YYZ
1 stop11h 20m
Multiple Airlines
Thu 9/106:30 am
YYZ
-
IAH
1 stop9h 36m
Multiple Airlines
Deal found 7/14$291
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 8/318:35 am
IAH
-
YYZ
1 stop11h 20m
Multiple Airlines
Sat 9/56:30 am
YYZ
-
IAH
1 stop9h 54m
Multiple Airlines
Deal found 7/14$292
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 9/178:36 am
IAH
-
YYZ
1 stop11h 19m
Multiple Airlines
Wed 9/239:30 am
YYZ
-
IAH
1 stop30h 36m
Multiple Airlines
Deal found 7/14$293
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 9/178:36 am
IAH
-
YYZ
1 stop11h 19m
Multiple Airlines
Sun 9/209:30 am
YYZ
-
IAH
1 stop30h 36m
Multiple Airlines
Deal found 7/15$295
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 8/248:35 am
IAH
-
YYZ
1 stop28h 30m
Multiple Airlines
Mon 8/311:30 pm
YYZ
-
IAH
1 stop26h 54m
Multiple Airlines
Deal found 7/14$296
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 8/318:35 am
IAH
-
YYZ
1 stop11h 20m
Multiple Airlines
Thu 9/36:30 am
YYZ
-
IAH
1 stop9h 54m
Multiple Airlines
Deal found 7/14$299
This Kiwi.com deal was found by Cheapflights users on 7/16. 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.
Thu 10/228:36 am
IAH
-
YYZ
1 stop11h 19m
Multiple Airlines
Sun 10/2511:15 am
YYZ
-
IAH
1 stop28h 51m
Multiple Airlines
Deal found 7/16$300
This Kiwi.com deal was found by Cheapflights users on 7/16. 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.
Thu 9/248:36 am
IAH
-
YYZ
1 stop11h 19m
Multiple Airlines
Thu 10/16:30 am
YYZ
-
IAH
1 stop9h 36m
Multiple Airlines
Deal found 7/16$304
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 8/318:35 am
IAH
-
YYZ
1 stop11h 20m
Multiple Airlines
Tue 9/86:30 am
YYZ
-
IAH
1 stop9h 54m
Multiple Airlines
Deal found 7/14$310
This Kiwi.com deal was found by Cheapflights users on 7/16. 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.
Mon 8/248:35 am
IAH
-
YYZ
1 stop28h 30m
Multiple Airlines
Wed 8/269:30 am
YYZ
-
IAH
1 stop30h 54m
Multiple Airlines
Deal found 7/16$313
This Kiwi.com deal was found by Cheapflights users on 7/16. 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.
Mon 8/108:16 am
IAH
-
YYZ
1 stop28h 49m
Multiple Airlines
Wed 8/199:30 am
YYZ
-
IAH
1 stop30h 54m
Multiple Airlines
Deal found 7/16$314

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 July 18, 2026.

Round-trip from

$287
(Kiwi.com)

One-way from

$187
(Kiwi.com)

Popular in

February

Cheapest in

September

Average price

$635
From Houston to Ontario
Search Deals
One-way flight from Houston to Ontario
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($6 potential increase over avg. RT price).
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 July 2026
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 2,558,603 searches. Data last updated July 18, 2026.
Use the filters below to find and compare flights from Houston to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HoustonToronto

IAH - YTZ

IAHYTZ

Houston George Bush Intcntl

Wed 9/9

6:42 pm-6:00 pm

1 stop22h 18m

Toronto Island

Wed 9/23

1:45 pm-5:47 pm

1 stop29h 02m

$345

HoustonToronto

IAH - YKF

IAHYKF

Houston George Bush Intcntl

Mon 9/14

6:30 am-7:50 pm

1 stop12h 20m

Toronto Region of Waterloo Intl

Wed 9/30

8:40 pm-1:55 pm

1 stop18h 15m

$499

HoustonToronto

IAH - YYZ

IAHYYZ

Houston George Bush Intcntl

Fri 11/20

4:10 pm-12:01 am

1 stop6h 51m

Toronto Pearson Intl

Fri 11/27

6:15 am-11:06 am

1 stop5h 51m

$539

HoustonToronto

HOU - YYZ

HOUYYZ

Houston Hobby

Thu 9/10

2:25 pm-9:59 pm

1 stop6h 34m

Toronto Pearson Intl

Mon 9/14

11:38 am-4:31 pm

1 stop5h 53m

$539

HoustonToronto

HOU - YYZ

HOUYYZ

Houston Hobby

Mon 8/24

1:13 pm-9:59 pm

1 stop7h 46m

Toronto Pearson Intl

Mon 8/31

7:45 am-12:16 pm

1 stop5h 31m

$539

HoustonHamilton

IAH - YHM

IAHYHM

Houston George Bush Intcntl

Tue 9/8

6:30 am-5:15 pm

1 stop9h 45m

Hamilton

Mon 9/14

6:10 pm-1:55 pm

1 stop20h 45m

$540

HoustonToronto

IAH - YYZ

IAHYYZ

Houston George Bush Intcntl

Tue 9/15

7:00 am-4:13 pm

2 stops8h 13m

Toronto Pearson Intl

Fri 9/18

6:10 pm-10:06 pm

1 stop4h 56m

$549

HoustonToronto

IAH - YYZ

IAHYYZ

Houston George Bush Intcntl

Sun 8/30

5:20 am-1:34 pm

1 stop7h 14m

Toronto Pearson Intl

Thu 9/3

9:45 am-5:40 pm

2 stops8h 55m

$549

HoustonToronto

HOU - YYZ

HOUYYZ

Houston Hobby

Thu 9/17

2:25 pm-10:59 pm

2 stops7h 34m

Toronto Pearson Intl

Sun 9/20

6:15 am-1:19 pm

1 stop8h 04m

$549

HoustonToronto

IAH - YYZ

IAHYYZ

Houston George Bush Intcntl

Tue 8/11

6:35 pm-9:10 am

1 stop13h 35m

Toronto Pearson Intl

Sat 8/15

6:14 pm-10:19 pm

1 stop5h 05m

$552

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/16

Showing 1-10 of 60 resultsSorted by cheapest first
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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, September is the cheapest month in which you can book a flight from Houston to Region of Ontario (average of $580). Flying from Houston to Region of Ontario in February is currently the most expensive (average of $759). 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 July 18, 2026.

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.

How much does it cost to fly round-trip from Houston to Region of Ontario?

How far ahead should I book a flight from Houston to Region of Ontario?

Booking 87 days in advance of your planned departure date is, on average, the best time to get cheap flights from Houston to Region of Ontario. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 July 18, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andWestJet 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
7.8
Good
8,481 reviews

Entertainment

7.8

Boarding

8.1

Crew

8.5

Overall

7.8

Comfort

7.8

Food

7.2

Reviews

1 / 20
10.0
Excellent

Stacey-Ann,Aug 2023

IAH - ATL

The staff made boarding as easy as possible. Although it was a full flight, everyone was seated in a timely manner and we arrived early.
Delta
7.8
Good
8,481 reviews
Delta
7.8
Good
8,481 reviews

Entertainment

7.8

Boarding

8.1

Crew

8.5

Overall

7.8

Comfort

7.8

Food

7.2

Reviews

1 / 20
10.0
Excellent

Stacey-Ann,Aug 2023

IAH - ATL

The staff made boarding as easy as possible. Although it was a full flight, everyone was seated in a timely manner and we arrived early.
United Airlines
7.4
Good
10,008 reviews
Delta
7.8
Good
8,481 reviews

Entertainment

7.8

Boarding

8.1

Crew

8.5

Overall

7.8

Comfort

7.8

Food

7.2

Reviews

1 / 20
10.0
Excellent

Stacey-Ann,Aug 2023

IAH - ATL

The staff made boarding as easy as possible. Although it was a full flight, everyone was seated in a timely manner and we arrived early.
WestJet
7.2
Good
3,411 reviews
Delta
7.8
Good
8,481 reviews

Entertainment

7.8

Boarding

8.1

Crew

8.5

Overall

7.8

Comfort

7.8

Food

7.2

Reviews

1 / 20
10.0
Excellent

Stacey-Ann,Aug 2023

IAH - ATL

The staff made boarding as easy as possible. Although it was a full flight, everyone was seated in a timely manner and we arrived early.
American Airlines
7.1
Good
11,823 reviews
Delta
7.8
Good
8,481 reviews

Entertainment

7.8

Boarding

8.1

Crew

8.5

Overall

7.8

Comfort

7.8

Food

7.2

Reviews

1 / 20
10.0
Excellent

Stacey-Ann,Aug 2023

IAH - ATL

The staff made boarding as easy as possible. Although it was a full flight, everyone was seated in a timely manner and we arrived early.
Air Canada
7.1
Good
11,359 reviews
Delta
7.8
Good
8,481 reviews

Entertainment

7.8

Boarding

8.1

Crew

8.5

Overall

7.8

Comfort

7.8

Food

7.2

Reviews

1 / 20
10.0
Excellent

Stacey-Ann,Aug 2023

IAH - ATL

The staff made boarding as easy as possible. Although it was a full flight, everyone was seated in a timely manner and we arrived early.

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 6h 50m. Houston and Region of Ontario are separated by a distance of 1285 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $160. Users have also found prices from $228 and $244 on Air Canada and United Airlines, respectively.

  • 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, September is the cheapest month in which you can book a flight from Houston to Region of Ontario (average of $580). Flying from Houston to Region of Ontario in February is currently the most expensive (average of $759). 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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Top 5 airlines flying from Houston to Ontario

Discover the top 5 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 July 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$118Average$464FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$236Average$552FlexibilityNo cancel feeOn-time60%
Air CanadaCheapest$266Average$689FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$291Average$809FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$315Average$511FlexibilityNo cancel feeOn-time71%

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