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$63+ Cheap flights from Ontario (ONT) to Houston

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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — HOU
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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The best prices from Ontario to Houston are usually found in September or October, booked 81 days in advance, depart on a Friday or Thursday and return on a Wednesday

Cheap flight deals from Ontario to Houston

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Houston (HO1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 20, 2024.

Popular in

February

Cheapest in

September

Round-trip from

$108
(Frontier)

One-way from

$65
(CheapOair)
High demand for flights, 30% potential price rise
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Best time to find cheap flights, 25% potential price drop
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From Ontario to Houston
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One-way flight from Ontario to Houston
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Find flight deals from Ontario to Houston

Cheapest flights from Ontario to Houston
Explore the most affordable flight options available from Ontario to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This Frontier deal was found by Cheapflights users on 11/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/58:04 amONT - IAH
1 stop8h 16mFrontier
Sat 1/49:58 pmIAH - ONT
1 stop12h 08mFrontier
Deal found 11/20$108
This CheapOair deal was found by Cheapflights users on 11/19. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/117:45 amONT - HOU
1 stop7h 41mFrontier
Thu 12/1210:36 amHOU - ONT
1 stop15h 08mFrontier
Deal found 11/19$118
This Delta deal was found by Cheapflights users on 11/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/46:00 amONT - IAH
1 stop7h 35mDelta
Wed 12/111:10 pmIAH - ONT
2 stops13h 04mDelta
Deal found 11/19$271
This Delta deal was found by Cheapflights users on 11/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/712:05 pmONT - HOU
1 stop8h 03mDelta
Tue 12/104:48 pmHOU - ONT
1 stop8h 14mDelta
Deal found 11/19$286
This American Airlines deal was found by Cheapflights users on 11/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/129:53 amONT - IAH
1 stop5h 39mAmerican Airlines
Sat 12/145:00 amIAH - ONT
2 stops9h 00mAmerican Airlines
Deal found 11/19$306
This American Airlines deal was found by Cheapflights users on 11/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/512:53 pmONT - HOU
1 stop5h 11mAmerican Airlines
Tue 12/105:58 amHOU - ONT
1 stop8h 03mAmerican Airlines
Deal found 11/19$307
This Orbitz deal was found by Cheapflights users on 11/20. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/57:00 amONT - IAH
2 stops14h 59mMultiple Airlines
Sat 1/49:58 pmIAH - ONT
1 stop12h 08mMultiple Airlines
Deal found 11/20$317
This United Airlines deal was found by Cheapflights users on 11/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/96:10 amONT - IAH
Nonstop3h 00mUnited Airlines
Thu 12/128:15 pmIAH - ONT
Nonstop3h 27mUnited Airlines
Deal found 11/18$330
This KAYAK deal was found by Cheapflights users on 11/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/105:35 amONT - HOU
1 stop10h 50mSouthwest
Thu 12/129:10 amHOU - ONT
Nonstop3h 30mSouthwest
Deal found 11/19$354

Find flights from Ontario to Houston within your budget

Customize your flight search to find flights from 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, Cheapflights users made 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OntarioHouston

ONT - IAH

ONTIAH

Ontario

Wed 2/19

4:09 pm-9:26 pm

Nonstop3h 17m

Houston George Bush Intcntl

Fri 2/21

12:07 pm-1:43 pm

Nonstop3h 36m

$108

OntarioHouston

ONT - HOU

ONTHOU

Ontario

Thu 1/9

8:11 pm-9:33 am

1 stop11h 22m

Houston Hobby

Wed 1/15

6:18 pm-11:44 pm

1 stop7h 26m

$109

OntarioHouston

ONT - IAH

ONTIAH

Ontario

Tue 12/10

6:00 am-6:33 pm

2 stops10h 33m

Houston George Bush Intcntl

Mon 12/16

5:00 pm-11:02 pm

1 stop8h 02m

$241

OntarioHouston

ONT - IAH

ONTIAH

Ontario

Fri 2/21

4:09 pm-9:26 pm

Nonstop3h 17m

Houston George Bush Intcntl

Sat 3/1

9:05 am-8:17 pm

2 stops13h 12m

$277

OntarioHouston

ONT - HOU

ONTHOU

Ontario

Sat 12/7

12:05 pm-10:08 pm

1 stop8h 03m

Houston Hobby

Tue 12/10

4:48 pm-11:02 pm

1 stop8h 14m

$286

OntarioHouston

ONT - IAH

ONTIAH

Ontario

Wed 12/11

6:10 am-11:10 am

Nonstop3h 00m

Houston George Bush Intcntl

Wed 12/11

8:15 pm-9:42 pm

Nonstop3h 27m

$297

OntarioHouston

ONT - IAH

ONTIAH

Ontario

Thu 12/12

9:53 am-5:32 pm

1 stop5h 39m

Houston George Bush Intcntl

Sat 12/14

5:00 am-12:00 pm

2 stops9h 00m

$306

OntarioHouston

ONT - HOU

ONTHOU

Ontario

Thu 12/5

12:53 pm-8:04 pm

1 stop5h 11m

Houston Hobby

Tue 12/10

5:58 am-12:01 pm

1 stop8h 03m

$307

OntarioHouston

ONT - HOU

ONTHOU

Ontario

Tue 12/10

5:35 am-6:25 pm

1 stop10h 50m

Houston Hobby

Thu 12/12

9:10 am-10:40 am

Nonstop3h 30m

$354

OntarioHouston

ONT - IAH

ONTIAH

Ontario

Fri 12/6

11:58 am-5:11 pm

Nonstop3h 13m

$63

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 19 results
1
2

Best time to book a flight from Ontario to Houston

Have a flexible travel schedule? Discover the best time to fly to Houston from Ontario 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.

Travel insights for flights from Ontario to Houston

Get recent, data-driven insights about flights from Ontario to Houston including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Houston. Price data was last updated on November 15, 2024.

The best time to book flights from Ontario to Houston is 81 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Ontario to Houston?

Currently, September is the cheapest month in which you can book a flight from Ontario to Houston (average of $230). Flying from Ontario to Houston in March is currently the most expensive (average of $332). 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 ONT to HOU?

Find hourly flight availability from Ontario to Houston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2024.

A simple way to save on the total cost of your ticket is to fly from Ontario to Houston at noon. If you’re flexible enough to do this you can expect to save up to 38% on your trip compared to booking a flight in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Ontario to Houston. Price data was last updated on June 30, 2024.

Travelers seeking maximum savings on their Ontario to Houston flight should consider departing on Thursday at noon when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Houston by month

Plan your trip to Houston by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Houston ranges from 3.2 - 5.9 inches per month. June is typically the wettest month, when rainfall can reach 5.9 in. February is typically the driest time to visit Houston when rainfall is around 3.2 in.

Temperature in Houston by month

Plan your trip to Houston by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Houston, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Houston

Get insights into the airlines that provide service to Houston. 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 Houston. Reviews last updated November 20, 2024.
Read through reviews of airlines operating flights from Ontario to Houston, such as Frontier, Southwest and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,014 reviews

Overall

8.1

Entertainment

7.7

Comfort

8.1

Crew

8.7

Boarding

8.2

Food

7.2

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Southwest
8.1
Very good
5,014 reviews
Southwest
8.1
Very good
5,014 reviews

Overall

8.1

Entertainment

7.7

Comfort

8.1

Crew

8.7

Boarding

8.2

Food

7.2

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Alaska Airlines
8.0
Very good
9,461 reviews
Southwest
8.1
Very good
5,014 reviews

Overall

8.1

Entertainment

7.7

Comfort

8.1

Crew

8.7

Boarding

8.2

Food

7.2

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Delta
8.0
Very good
8,756 reviews
Southwest
8.1
Very good
5,014 reviews

Overall

8.1

Entertainment

7.7

Comfort

8.1

Crew

8.7

Boarding

8.2

Food

7.2

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

United Airlines
7.4
Good
9,171 reviews
Southwest
8.1
Very good
5,014 reviews

Overall

8.1

Entertainment

7.7

Comfort

8.1

Crew

8.7

Boarding

8.2

Food

7.2

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,014 reviews

Overall

8.1

Entertainment

7.7

Comfort

8.1

Crew

8.7

Boarding

8.2

Food

7.2

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Houston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Houston?

    Located just 3.1 mi from the city center, Ontario is the airport most travelers will use when flying to Houston from Ontario. Booking flights from Ontario (ONT) to Houston should be relatively easy as there are 0 daily outbound flights to Houston from 6 different airlines.

  • What are the cheapest airlines flying from Ontario to Houston round-trip?

    Frontier, at $108, was found to be the cheapest airline from Ontario to Houston.Alternate airlines to your destination round-trip include Delta and American Airlines. Frontier is priced at 55% lower than the current average price of a flight leaving 3 months from now.

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

    $65 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $123 and $129, respectively.

  • What are the cheapest flights from Ontario to Houston?

    The cheapest flight price from Ontario to Houston is $172. On average you can expect to pay $370. The most popular route, (Ontario - Houston Hobby), can usually be booked for $106.

  • Can I find deals for flights from Ontario to Houston that include hotel bookings?

    Yes. In addition to deals on Ontario to Houston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Houston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Houston.

  • Can I find deals for business class flights from Ontario to Houston?

    Yes. Cheapflights offers flight deals from Ontario to Houston 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 Ontario to Houston?

    Currently, September is the cheapest month in which you can book a flight from Ontario to Houston (average of $230). Flying from Ontario to Houston in March is currently the most expensive (average of $332). 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.

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Alternative routes for Ontario to Houston

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Top 6 airlines flying from Ontario to Houston

Discover the top 6 airlines that operate flights from Ontario to Houston. 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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$87Average$176FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$91Average$203FlexibilityNo cancel feeOn-time65%
DeltaCheapest$144Average$319FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$215Average$409FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$218Average$394FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$247Average$411FlexibilityNo cancel feeOn-time71%
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