$207 Find Cheap Flights from Houston to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Houston to Ontario departing on 9/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Houston to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Houston to Ontario, as well as popular online travel agencies
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Cheap Flights from Houston to Ontario

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Toronto
Toronto1 stop$359
Ottawa
Ottawa1 stop$468
Toronto
Toronto1 stop$359
Ottawa
Ottawa1 stop$468

Book Cheap Houston to Ontario Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Houston to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Houston to Ontario

Tue, Jun 23 - Tue, Jun 30
Multiple Airlines Logo
9:58 pm - 1:05 pm
IAH
-
YTZ
14h 07m
1 stop
Multiple Airlines Logo
8:50 am - 8:52 pm
YTZ
-
IAH
13h 02m
1 stop
$359Multiple Airlines
Thu, Sep 24 - Thu, Oct 1
Multiple Airlines Logo
8:36 am - 8:55 pm
IAH
-
YYZ
11h 19m
1 stop
Multiple Airlines Logo
6:30 am - 3:06 pm
YYZ
-
IAH
9h 36m
1 stop
$363Multiple Airlines
Fri, Aug 14 - Tue, Aug 18
Multiple Airlines Logo
8:20 am - 2:05 pm
IAH
-
YYZ
28h 45m
1 stop
Multiple Airlines Logo
6:30 am - 2:51 pm
YYZ
-
IAH
9h 21m
1 stop
$367Multiple Airlines
Fri, Oct 16 - Mon, Oct 19
WestJet Logo
6:30 am - 5:15 pm
IAH
-
YHM
9h 45m
1 stop
WestJet Logo
6:10 pm - 1:55 pm
YHM
-
IAH
20h 45m
1 stop
$507WestJet
Tue, Jul 21 - Tue, Jul 28
KLM Logo
5:17 pm - 11:58 pm
HOU
-
YYZ
5h 41m
1 stop
KLM Logo
7:45 am - 12:10 pm
YYZ
-
HOU
5h 25m
1 stop
$524KLM
Tue, Jun 16 - Thu, Jun 18
WestJet Logo
6:30 am - 5:15 pm
IAH
-
YHM
9h 45m
1 stop
WestJet Logo
6:10 pm - 1:55 pm
YHM
-
IAH
20h 45m
1 stop
$533WestJet
Wed, Aug 19 - Thu, Aug 27
Delta Logo
7:00 am - 6:54 pm
IAH
-
YUL
10h 54m
1 stop
Delta Logo
9:30 am - 9:44 pm
YUL
-
IAH
13h 14m
1 stop
$538Delta
Sun, Jun 28 - Tue, Jul 7
KLM Logo
6:03 am - 12:25 pm
HOU
-
YYZ
5h 22m
1 stop
KLM Logo
7:45 am - 4:22 pm
YYZ
-
HOU
9h 37m
1 stop
$540KLM
Tue, Aug 25 - Mon, Aug 31
Delta Logo
6:35 pm - 8:39 am
IAH
-
YUL
13h 04m
1 stop
Delta Logo
7:45 pm - 10:01 am
YUL
-
IAH
15h 16m
1 stop
$552Delta
Fri, Jun 19 - Thu, Nov 5
American Airlines Logo
8:23 pm - 2:44 pm
HOU
-
YUL
17h 21m
1 stop
American Airlines Logo
4:00 pm - 11:57 pm
YUL
-
HOU
8h 57m
1 stop
$706American Airlines
Booking Insights

KAYAK's insights & trends for Houston to Ontario flights

Get data-powered insights and trends into flights from Houston to Ontario to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Houston to Region of Ontario?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Houston to Region of Ontario departing in September.

What is the cheapest Houston to Ontario flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Ontario from Houston found in the last 7 days was to Toronto, at $370 round-trip. The most popular route is from Houston George Bush Intcntl Airport (IAH) to Toronto Pearson Intl Airport (YYZ), and the cheapest round-trip airline ticket found on this route in the last 7 days was $370.

What is the cheapest time of day to fly to Ontario?

The average price for all round-trip flights from Houston to Ontario depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Ontario is generally in the evening, when round-trip flights cost $694 on average. Morning departures are around 26% more expensive than evening flights, on average. The most expensive time of day to fly to Ontario is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,499.

What is the cheapest month to fly from Houston to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Houston to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Houston to Ontario is November, when tickets cost $76 (return) on average. On the other hand, the most expensive months are October and April, when the average cost of round-trip tickets is $266 and $263 respectively.

What’s the cheapest day of the week to fly from Houston to Ontario?

The average price of all round-trip flights from Houston to Ontario clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Ontario on a Friday and more expensive on a Wednesday. On your return trip to Houston, you should consider flying back on a Saturday, and avoid Thursdays for better deals.

How far in advance should I book a flight from Houston to Ontario?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Houston to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Houston to Ontario, you should book around 4 weeks before departure, which saves you about 52% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Cheapest flight$207
Flight from Houston George Bush Airport to Montreal

Flights from Houston to Ontario: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Houston to Ontario 
Verified travelerFlew with United Airlines
IAH
-
YYZ
Jan 2025
Bring a variety of snacks in case customs and TSA take too long and can’t buy food if you are connecting. Very busy lines.
ClaireFlew with Air Canada
IAH
-
YYZ
Oct 2024
Always be at HICA for international flights 2 hours in advance. We had a 1 hour and 50 min security wait bc 2 high school bands of were ahead of us and I almost missed my flight

FAQs - booking Ontario flights

  • How does KAYAK find such low prices on flights from Houston to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Houston to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Houston to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Houston to Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Houston to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Houston to Ontario with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Houston to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Houston to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Houston to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Houston to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Houston to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9751 reviews
8.1Crew
6.6Food
7.3Comfort
7.1Entertainment
7.7Boarding
Airline reviews

We had a delay, but thankfully I made it to my connection. Overall it went smooth

8.0 ExcellentSandy, May 2026
IAH - ABQ
Read more United Airlines reviews

We had a delay, but thankfully I made it to my connection. Overall it went smooth

Left an hour and a half after the listed time. Up side was it had TV screens on the seat.

It's a long flight and I would have liked better snacks between lunch and the arrival meal. It's fine to have fruit and nuts but I really don't like ramen because it's salty junk soup. I'd suggest sandwiches. They're not expensive nor are they hard to store for a long flight. The FA's had a couple of big services and they were super busy preparing, executing and then cleaning up. Then they disappeared.

Great flight. Got to watch a movie. Smooth flight and early arrival at ORD.

I've been flying American mostly, and it's been very frustrating. This united flight makes me realize maybe the issue isn't flying, but the airline. United was a significantly better experience. The plane was more comfortable, with a normal amount of leg room (vs the ridiculous reductions AA has made), more comfortable seats, screens to watch movies. It was a much better experience!

We had excellent customer service despite the chaos at George Bush airport in Houston!

It isvvery small flight. No leg room . No space to put my personal item at feet.

Didn't make the flight because the first leg of my flight was canceled and the next leg was already booked.

Terrible because it was cancelled due to volcanic ash clouds in Guatemala while all other airlines kept flying. Had to pay for a hotel to stay overnight in Houston and try to fly next day.

Overall we had a good experience during our flight from San Francisco to Houston.

Westjet never disappoint always terrible small plane ,crowded cheap snack if you can call it snack

Westjet was late and we missed our connecting flight with Cathay. Had to wait 8 hours. Westjet only allows 1 checked in baggage for international flights- it’s always been 2. Canada allows only 1 sandwhich bag size full off small liquids. Everything else will be tossed. Awful trip. Will never fly west jet or go to Toronto to connect flights!

I didn’t have any food but my Prosecco hit the spot. We left on time and the crew was friendly.

I thought the coffee was excellent! The wait for the luggage was acceptable.. It left and arrived on time. My son found that his device worked very well and he really enjoyed his flight! The stewardess moved him up to the emergency exit and he very much appreciated that!

I wasn’t able to book or pay for a seat and they forgot to check me in for my third flight so I spent 24 hours in Toronto waiting for another one.

No pre boarding kiosk to check in, baggage claim detected luggage didn’t leave the airport, poorly managed recovery of lost luggage, and blame lost tag from conveyor to TSA/security, very poor from TSA/security check to delivery, crucial if compensation will go thru and will likely wait for months unlike United,

Everything was good except for flight delay, but it was because of the snow storm in the arrival airport.

The flight was cancelled less than 24 hours before departure. The alternate flight was a day later going from Grenada to Toronto to Vancouver to Calgary to Montreal. 2 days in the air. Not serious, Very bad service

I like the wider seats, Plus lots of legroom, Lacking entertainment, no tv or screen to play with

Liked in-flight wifi Did not like - nothing to complain, really. All good

They lost my baggage and I am still struggling to the information and update

Flight delays for communication overall not a good experience uncomfortable on the plane. Person in front of me reclined his seat, putting them inches from my lap.

Cancelled BOYH legs of our flight home 30 min before initial boarding

The flight was delayed about an hour for a maintenance specialist to approve the maintenance repair

This flight was delayed but it worked in my favor because my Atlanta to Dallas flight was delayed.

The staff was nice. I appreciated that I was able to take an earlier flight, even though it was last minute. The boarding process felt rather chaotic.

My flight got delayed a total of five times. And the boarding gate changed four times. most of the time the platform was not up-to-date with the changes taking place. The most discouraging part of the entire trip by far.

Returned home with a blood clot from flight homes and the uncomfortable aircraft I was on.

The crew was very kind, but no in-flight entertainment monitors and a 2 hour and 30 minute delay was extremely frustrating.

Everything was delayed and the staff sent me to the wrong gate, causing me to miss one of my flights. I arrived at my destination 6 hours later than I was supposed to.

They did not let us board because one member needed a transit visa, which was not evident at the time of ticket purchase.

I was charge a baggage checking fee $68!! I volunteered to check my duffle bag which usually goes under my seat!

I did not like anything because the flight was cancelled yesterday and I did not get to arrive on time in Toronto as I was rebooked with another airline. This caused me to be really stressed out as I am an individual with back injury and to be forced to stay longer in an airport to accommodate a change of airline and the transfers associated with it Due to this I am probably not going to book through your website to eliminate this potentially chaos in the future

shittiest airline in the hemisphere. To improve - start thinking you're flying people, not cattle

Easy boarding, inflight refreshments came on time and comfortable seat

It was good that our flight left early. It was a nice smooth flight and landing.

It was a problem because there was a delay where we sat before taking off from newark,then when landed in Toronto we sat on tarmac and they wouldn't let us out for a long period of time. When we finally were released to the airport in Toronto the attendant scanned our boarding pass that we were here for our connection to Brazil. We ran all the way to the gate and they said at the gate the door is shut so we can not let you on the plane. We explained that we were checked in by the attendant when we arrived at Toronto airport to go to Brazil and they should not have shut the door. We were ignored at the gate

Flight home was delayed multiple times, did not get home until 2am

the check-in lady at ORD was extremely rude and unprofessional. very disappointed as it was supposed to be a celebration for my wife's birthday and it really put a damper on things. if i wanted to be treated like trash, i would have flown Economy! (as opposed to business class)

My original flight was cancelled and then rebooked four hours later on a recovery flight, but I was checked in as stanby and had no seats so as a family of four we were concerned about not being seated altogether. Our flight then got delayed by another 1.5 hours and when seats were assigned at the gate, three of the four of us were together and we could get my wife closer, they offered no assistance.

Everything you need to know for your flight from Houston to Ontario

Cabin class types available on flights to Ontario

Cabin classes available on flights to Ontario. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.