$117 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 6/20. 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.
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KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
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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Best Ontario Flight Deals from Houston

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Toronto
Toronto1 stop$248
Ottawa
Ottawa1 stop$343
Toronto
Toronto1 stop$248
Ottawa
Ottawa1 stop$343

Cheap Flights from Houston to Ontario

 
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.

Recent round-trip flight deals from Houston to Ontario

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Houston to Ontario.
Discover the best prices for you by selecting your travel dates on KAYAK.
 Logo
8:44 pm - 2:05 pmIAH-YYZ
16h 21m1 stop
 Logo
6:30 am - 7:53 amYYZ-IAH
26h 23m1 stop
Fri, Jun 6 - Sun, Jun 8
 Logo
8:44 pm - 2:05 pmIAH-YYZ
16h 21m1 stop
 Logo
6:30 am - 7:34 pmYYZ-IAH
38h 04m2 stops
Fri, Jun 6 - Sun, Jun 8
Delta Logo
6:00 am - 5:59 pmIAH-YYZ
10h 59m1 stop
Delta Logo
6:49 pm - 9:19 amYYZ-IAH
15h 30m1 stop
$434Delta
Find Deal
Mon, Jun 9 - Thu, Jun 12
Delta Logo
10:25 am - 10:54 pmIAH-YYZ
11h 29m1 stop
Delta Logo
6:04 am - 6:00 pmYYZ-IAH
12h 56m2 stops
$451Delta
Find Deal
Thu, May 29 - Wed, Jun 11
United Airlines Logo
2:50 pm - 1:13 pmIAH-YYZ
21h 23m1 stop
United Airlines Logo
8:20 am - 8:15 pmYYZ-IAH
12h 55m1 stop
$546United Airlines
Find Deal
Fri, Jul 11 - Mon, Jul 14
United Airlines Logo
7:35 am - 9:39 pmIAH-YYZ
13h 04m1 stop
United Airlines Logo
6:10 am - 8:42 amYYZ-IAH
3h 32mnonstop
$570United Airlines
Find Deal
Fri, Jun 6 - Tue, Jul 1
Air Canada Logo
10:00 am - 5:46 pmIAH-YTZ
6h 46m1 stop
Air Canada Logo
12:25 pm - 7:36 pmYTZ-IAH
8h 11m1 stop
$590Air Canada
Find Deal
Fri, Aug 8 - Mon, Aug 11
Air Canada Logo
10:00 am - 7:48 pmIAH-YYZ
8h 48m1 stop
Air Canada Logo
6:10 am - 8:41 amYYZ-IAH
3h 31mnonstop
$592Air Canada
Find Deal
Sun, Jun 8 - Sat, Jun 28
American Airlines Logo
5:00 am - 4:25 pmIAH-YYZ
10h 25m1 stop
American Airlines Logo
3:14 pm - 11:31 pmYYZ-IAH
9h 17m1 stop
$598American Airlines
Find Deal
Tue, Jun 3 - Tue, Jun 10
American Airlines Logo
5:00 am - 12:30 pmHOU-YYZ
6h 30m1 stop
American Airlines Logo
1:25 pm - 6:00 pmYYZ-HOU
5h 35m1 stop
$639American Airlines
Find Deal
Wed, May 28 - Wed, Jun 11
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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.

What is the cheapest Houston to Ontario flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Houston to Ontario.

The cheapest ticket to Ontario from Houston found in the last 72 hours was to Toronto, at $268 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 72 hours was $268.

Can I save money by flying with a layover from Houston to Ontario?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $912 on average.

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 February, when tickets cost $295 (return) on average. On the other hand, the most expensive months are July and March, when the average cost of round-trip tickets is $637 and $634 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 Thursday and more expensive on a Sunday. On your return trip to Houston, you should consider flying back on a Wednesday, and avoid Mondays 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. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.


Good to know

Cheapest flight$117
Flight from Houston George Bush Airport to Toronto Pearson Airport

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 AirlinesIAH-YYZJan 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 CanadaIAH-YYZOct 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
PeterFlew with United AirlinesIAH-YYZApr 2024
I like United Airlines, friendly staff and good service.

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.

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

    The cheapest time of day to fly to Ontario is generally at night, when round-trip flights cost $283 on average. Morning departures are around 39% 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 $981.

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.
8.0
DeltaOverall score based on 7937 reviews
7.9Entertainment
8.5Crew
7.3Food
7.9Comfort
8.2Boarding
Airline reviews

Food from the flight from Atlanta to Santiago was very poor..

4.0 OkayAnonymous, May 2025FAI - SEA
Read more Delta reviews

Food from the flight from Atlanta to Santiago was very poor..

Flight was delayed due to weather. Crew did a nice job of making us comfortable. No complain complaints.

Our bag was lost so that made unnecessary chaos On our trip

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

It was an overnight flight and I desperately needed coffee before we landed, but Delta does only one beverage service, and that is shortly after takeoff, not before landing at 5 am.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

My suitcase was completed destroyed. The top part is broken and unusable now.

We boarded but then sat there waiting on some missed connection people to get on so we sat for about 15 minutes for that. Then we sat again because the passenger manifest was wrong and they had to figure it out before we could leave. That took about another 20 minutes or so. The crew was working hard to figure it out so it’s not their fault. It ended up being a system glitch where someone was upgraded to first class while another person was also in the same seat and it just created a mess that took a little while to figure out. They literally went to every person on the plane asking their names to see who was sitting in the wrong seat. I also hate the entertainment that must be watched on your phone or tablet. Just give us setback screens. It’s so much better. Almost every Delta flight has this now and it is so nice to have them. The crew did a great job. I have no complaints from them. They were very hard working, even with the mishap and a disgruntled passenger.

My priority checked bag was not loaded on the flight. I had to sit in baggage claim in Las Vegas for 2 1/2 hours waiting for the next flight. All baggage staff were very helpful, tracking showed it as scanned for loading. Nobody told me why it wasn't on my flight.

All male crew was just too woke for me. I felt like a sardine. I will never take a window seat or the rearmost seat again. I booked early and did not pay for seat selection and that was a mistake. The security at IAH was atrocious. I was violated and radiated as I was in a hurry to connect to my other flight. I may have lost items under the seat in front of me that I couldn't see nor bend over to look.

It’s been awhile since I have traveled on United. I, along with my family who were on the flight noted how smoothly everything went . Boarding, flight crew and service was excellent.

In general ok, my only issue is that they had no hot items for purchase. I had very little time in my connection due to baggage/customs/TSA, thag I barely even had a chance for a stop at the washroom and buy water, to make it to my gate when they started boarding. I had nothing to eat because the trip started early, so I was ready to purchase, and they had nothing except for dry items like snacks. I had to purchase a mediocre, overpriced cheese and fruit board, instead of at least a pizza or sliders that I was planning on getting. Other than that, it was fine. But that’s typical Air Canada, to not have enough.

How badly can you screw up baggage claim? We were told to go to baggage claim too for our bags from this flight. Another flights bags were there. They finished up. More bags from a different flight arrived. Our bags did not Finally the baggage claim belt stopped working and and are flight was still listed on the arrivals for that baggage claim 2. And then nothing It turns out that they had been delivered not only the United baggage claim but far away on a Delta baggage claim No I never told us. It was only the people looking around who had been on the flight But I’m sure there was plenty of time for the employees to raffle through the bags and steal whatever they wanted

Long wait before take off without an update for 20 minutes. Flight was good otherwise.

Flight delayed over 2 hours . I was flying bussiness never got food cause they ran out of what i wanted

Took off on time and successfully avoided weather that looked to be a problem along the way

I liked everything. Except that my neck was hurting on the seat. I couldn't sleep.

We were delayed Al ost / hours after boarding so that maintenance had to add oil to the engines. Then the oil they grabbed had been left out in the Dallas record cold and was frozen. They had to go back to the hanger and grab some that was not frozen.

They changed my seat from one that I had paid for as an upgrade to a regular seat at the last minute.

Flight was empty so had a whole row to myself. Still had to wait to get the bag due to the negligence at Palm Springs departure.

Everything was on time, we arrived early, everything worked well.

Angela was the best fa ever. She made that 8 hour flight a breeze

This was a pleasant, short flight and the crew was friendly.

The service and food needs to improve to catch up with other international flights

Small plane, so no entertainment. Hour delay! Nobody explained wht the delay was all about.

2.5 hour delay sitting in the plane on the tarmac, you tell me how the experience was

I hope these comments will find their way to AC customer experience team. Me and my spouse 50 years of aged coming back from 7 days perfect vacation... While boarding in FLL flight AC1621, one of the boarding agents (tall aged african american) man literelly yeld at my wife during the picture talking process. MAM ! STEP !! BACK !!! We are not illegal immegrants beying deported, nor are we in the millitary. We are customers returning home. This was unacceptable. While boarding in YYZ flight AC1154, one of the boarding agents (tall aged caucasian) man criticied with several complesant remarks my passport condition saying that I could not travel intl with it due to stain, decoloration, and BLOOD. My passport does not have blood on it! Yes it might be in less than perfect condition, but their are ways to talk to customer that does not imply not allow a boarding agent to be angry fathery like, or a custom agent looking at a suspicious individual. Both experience were less than acceptable for might I remind you a paying CUSTOMER returning home.

This flight didn't happen for me because of overbooking.

Terrible experience, flight was delayed both ways. Limited compensation for the 5+ hour delay. Will not be flying Air Canada Rouge, and don’t recommend you do either.

The boarding was relatively quick, the crew welcoming and flight uneventful. The omission of meals on all airlines is unacceptable especially when the flight is during a mealtime such as this one, (lunchtime), is unacceptable.

Everything was simple and easy. The lady at the gate was super friendly, I wish I had her name to share. She's a little older, dark-haired. You can tell she likes her job and would be a great influence on any young people training with her.

No Charging ports for personal electronics, which were required to use wifi entertainment.

Rushed, the boarding was a great deal like a Chinese fire drill.

it was red eye flight, it was ok, there was beverage service, thats it i didnt care much as i wanted to sleep

Everything went smoothly. I appreciate the selection of free movies.

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.

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