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Cheap flights from Ontario to Houston from $139

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Houston departing on 6/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Ontario to Houston

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:00 am - 11:11 am
YUL
-
IAH
28h 11m
2 stops
Multiple Airlines Logo
10:09 am - 12:30 am
IAH
-
YUL
13h 21m
1 stop
$334Multiple Airlines
Sun, Apr 19 - Tue, Apr 21
Multiple Airlines Logo
7:15 pm - 3:01 pm
YUL
-
IAH
20h 46m
1 stop
Multiple Airlines Logo
5:29 pm - 2:08 pm
IAH
-
YUL
19h 39m
1 stop
$336Multiple Airlines
Mon, May 4 - Mon, May 11
Multiple Airlines Logo
7:15 pm - 3:14 pm
YUL
-
IAH
20h 59m
1 stop
Multiple Airlines Logo
6:50 am - 2:08 pm
IAH
-
YUL
6h 18m
1 stop
$337Multiple Airlines
Tue, May 5 - Tue, Jun 2
Multiple Airlines Logo
10:20 am - 9:50 pm
YUL
-
IAH
12h 30m
2 stops
Multiple Airlines Logo
6:50 am - 2:08 pm
IAH
-
YUL
6h 18m
1 stop
$339Multiple Airlines
Sat, Apr 25 - Mon, May 4
Multiple Airlines Logo
4:35 pm - 9:43 am
YUL
-
IAH
18h 08m
1 stop
Multiple Airlines Logo
5:29 pm - 12:37 am
IAH
-
YUL
30h 08m
2 stops
$341Multiple Airlines
Wed, Apr 29 - Mon, May 4
WestJet Logo
6:20 am - 5:30 pm
YKF
-
IAH
12h 10m
1 stop
WestJet Logo
6:20 pm - 5:29 am
IAH
-
YKF
10h 09m
1 stop
$392WestJet
Tue, Apr 21 - Fri, Apr 24
WestJet Logo
6:20 am - 5:30 pm
YKF
-
IAH
12h 10m
1 stop
WestJet Logo
6:20 pm - 5:29 am
IAH
-
YKF
10h 09m
1 stop
$394WestJet
Tue, Apr 21 - Fri, Apr 24
Delta Logo
6:00 am - 4:23 pm
YYZ
-
HOU
11h 23m
2 stops
Delta Logo
10:05 am - 8:30 pm
HOU
-
YYZ
9h 25m
2 stops
$468Delta
Tue, Sep 15 - Tue, Sep 22
Delta Logo
11:30 am - 4:23 pm
YYZ
-
HOU
5h 53m
1 stop
Delta Logo
6:00 am - 12:15 pm
HOU
-
YYZ
5h 15m
1 stop
$469Delta
Wed, Sep 9 - Sat, Sep 12
American Airlines Logo
3:48 pm - 11:59 pm
YUL
-
HOU
9h 11m
1 stop
American Airlines Logo
8:23 pm - 2:42 pm
HOU
-
YUL
17h 19m
1 stop
$523American Airlines
Thu, May 21 - Sun, May 24

American Airlines flights from Region of Ontario to Houston

Our best American Airlines deals on Region of Ontario to Houston flight tickets
American Airlines
May 11
YYZ3:13 pmToronto Pearson Intl
9h 35m
1 stop
IAH11:48 pmHouston George Bush Intcntl
May 13
IAH6:04 amHouston George Bush Intcntl
10h 36m
1 stop
YYZ5:40 pmToronto Pearson Intl
$377
American Airlines
Apr 30
YYZ6:15 amToronto Pearson Intl
11h 14m
1 stop
IAH4:29 pmHouston George Bush Intcntl
May 9
IAH1:02 pmHouston George Bush Intcntl
9h 27m
1 stop
YYZ11:29 pmToronto Pearson Intl
$395
American Airlines
Jun 12
YYZ6:46 amToronto Pearson Intl
9h 59m
1 stop
HOU3:45 pmHouston Hobby
Jun 16
HOU9:30 amHouston Hobby
6h 58m
1 stop
YYZ5:28 pmToronto Pearson Intl
$502

Delta flights from Region of Ontario to Houston

Our best Delta deals on Region of Ontario to Houston flight tickets
Delta
Apr 21
YYZ7:55 amToronto Pearson Intl
10h 05m
1 stop
IAH5:00 pmHouston George Bush Intcntl
Apr 22
IAH6:09 pmHouston George Bush Intcntl
14h 01m
1 stop
YYZ9:10 amToronto Pearson Intl
$407
Delta
Sep 15
YYZ6:00 amToronto Pearson Intl
11h 23m
2 stops
HOU4:23 pmHouston Hobby
Sep 22
HOU10:05 amHouston Hobby
9h 25m
2 stops
YYZ8:30 pmToronto Pearson Intl
$468
Delta
Sep 9
YYZ11:30 amToronto Pearson Intl
5h 53m
1 stop
HOU4:23 pmHouston Hobby
Sep 12
HOU6:00 amHouston Hobby
5h 15m
1 stop
YYZ12:15 pmToronto Pearson Intl
$469

momondo Fare Finder

 
Customize your flight search to find flights from Region of Ontario to Houston 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, momondo users made 832,500 searches. Data last updated April 9, 2026.
Use the filters below to find and compare flights from Ontario to Houston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealHouston

YUL - IAH

YULIAH

Montreal Pierre Elliott Trudeau Intl

Sun 4/19

8:00 am-11:11 am

2 stops28h 11m

Houston George Bush Intcntl

Tue 4/21

10:09 am-12:30 am

1 stop13h 21m

$334

MontrealHouston

YUL - IAH

YULIAH

Montreal Pierre Elliott Trudeau Intl

Mon 5/4

7:15 pm-3:01 pm

1 stop20h 46m

Houston George Bush Intcntl

Mon 5/11

5:29 pm-2:08 pm

1 stop19h 39m

$336

MontrealHouston

YUL - IAH

YULIAH

Montreal Pierre Elliott Trudeau Intl

Tue 5/5

7:15 pm-3:14 pm

1 stop20h 59m

Houston George Bush Intcntl

Tue 6/2

6:50 am-2:08 pm

1 stop6h 18m

$337

MontrealHouston

YUL - IAH

YULIAH

Montreal Pierre Elliott Trudeau Intl

Sat 4/25

10:20 am-9:50 pm

2 stops12h 30m

Houston George Bush Intcntl

Mon 5/4

6:50 am-2:08 pm

1 stop6h 18m

$339

MontrealHouston

YUL - IAH

YULIAH

Montreal Pierre Elliott Trudeau Intl

Wed 4/29

4:35 pm-9:43 am

1 stop18h 08m

Houston George Bush Intcntl

Mon 5/4

5:29 pm-12:37 am

2 stops30h 08m

$341

TorontoHouston

YKF - IAH

YKFIAH

Toronto Region of Waterloo Intl

Tue 4/21

6:20 am-5:30 pm

1 stop12h 10m

Houston George Bush Intcntl

Fri 4/24

6:20 pm-5:29 am

1 stop10h 09m

$392

TorontoHouston

YKF - IAH

YKFIAH

Toronto Region of Waterloo Intl

Tue 4/21

6:20 am-5:30 pm

1 stop12h 10m

Houston George Bush Intcntl

Fri 4/24

6:20 pm-5:29 am

1 stop10h 09m

$394

TorontoHouston

YYZ - HOU

YYZHOU

Toronto Pearson Intl

Tue 9/15

6:00 am-4:23 pm

2 stops11h 23m

Houston Hobby

Tue 9/22

10:05 am-8:30 pm

2 stops9h 25m

$468
Quickest round-trip

TorontoHouston

YYZ - HOU

YYZHOU

Toronto Pearson Intl

Wed 9/9

11:30 am-4:23 pm

1 stop5h 53m

Houston Hobby

Sat 9/12

6:00 am-12:15 pm

1 stop5h 15m

$469

MontrealHouston

YUL - HOU

YULHOU

Montreal Pierre Elliott Trudeau Intl

Thu 5/21

3:48 pm-11:59 pm

1 stop9h 11m

Houston Hobby

Sun 5/24

8:23 pm-2:42 pm

1 stop17h 19m

$523

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Houston from

How to get the cheapest flight ticket from Region of Ontario to Houston

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Houston?

The month of October is, on average, the cheapest month to fly to Houston from Region of Ontario, with most prices found around $466. The month of May is another great option to travel to Houston, with average flight prices from Region of Ontario averaging around $508.

What is the cheapest time of day to depart on your flight to Houston?

Our data shows that the cheapest Region of Ontario to Houston flights are usually those with departure times in the morning. Our users have found flights to Houston in the morning for as low as $536. Try not to purchase tickets in the evening because they tend to be around $600. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Ontario to Houston flight route?

Fly from Toronto Pearson Intl to Houston George Bush Intcntl for the best Ontario - Houston flight prices

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

You are more likely to see cheaper flights to Houston from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Houston for around $526 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Houston from Region of Ontario for as low as $410 on momondo.

What cabin class options are available on Ontario to Houston flights?

There are 4 cabin classes available to choose from on Ontario to Houston flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Region of Ontario to Houston flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to Houston

Fastest flight time

3h 30m

Direct flights

Every day

Airports in Houston

2 airports
The fastest flight from Region of Ontario to Houston takes 3h 30m
Direct flights go from Region of Ontario to Houston every day.
There are 2 airports in Houston. From Region of Ontario there are direct flights to Houston George Bush Intcntl (IAH).
Search flight deals

Frequently asked questions about flying from Ontario to Houston

  • When did momondo last update prices for flights from Ontario to Houston?

    Prices for flights from Ontario to Houston were last updated today.

  • How many operators does momondo search for flights from Ontario to Houston?

  • How old do you have to be to fly from Ontario to Houston?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario to Houston.

  • What documentation or ID do you need to fly to Houston?

    The travel and health documents required for your trip to Houston can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Houston. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Region of Ontario to Houston

Compare and see reviews for airlines that fly from Region of Ontario to Houston with momondo
Airline
Rating
Free Cancellation
Price
WestJetPriceFrom $240Free CancellationRating
7.2
3,316 reviews
Search WestJet flights
American AirlinesPriceFrom $261Free CancellationRating
7.1
11,559 reviews
Search American Airlines flights
Air CanadaPriceFrom $404Free CancellationRating
7.1
10,907 reviews
Search Air Canada flights
United AirlinesPriceFrom $438Free CancellationRating
7.4
9,554 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Houston?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to Houston. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ontario to Houston with flexible booking policies on momondo?

All flight searches from Ontario to Houston on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to Houston?

momondo provides multiple filters to help you find the best flight to Houston from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Ontario to Houston right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Houston, momondo offers a useful price alert feature which will track prices for flights to Houston from Ontario and alert you when they change.

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