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$48+ Cheap flights from George Bush Intcntl (IAH) to Ontario (ONT)

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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — ONT
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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The best prices from Houston George Bush Intcntl to Ontario are usually found in September or October, booked 20 days in advance, depart on a Thursday or Tuesday and return on a Friday

Cheap flight deals from George Bush Intcntl to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from George Bush Intcntl (IAH) to Ontario (ONT). 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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$82
(Frontier)

One-way from

$48
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$234

Good round-trip deal

$114 or less

Good one-way deal

$53 or less
Provider with most accurate pricing for Houston George Bush Intcntl-Ontario flight deals.
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Provider most trusted by Cheapflights users for Houston George Bush Intcntl-Ontario flights.
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From Houston George Bush Intcntl to Ontario
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One-way flight from Houston George Bush Intcntl to Ontario
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Highest demand for flights based on searches. 14% potential increase in price ($34 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Houston George Bush Intcntl to Ontario.
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Price to beat on a one-way flight from Houston George Bush Intcntl to Ontario.
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Find flight deals from George Bush Intcntl to Ontario

Cheapest flights from George Bush Intcntl to Ontario
Explore the most affordable flight options available from George Bush Intcntl to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This Frontier deal was found by Cheapflights users on 2/18. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/1612:22 pmIAH - ONT
Nonstop3h 36mFrontier
Wed 3/194:04 pmONT - IAH
Nonstop3h 17mFrontier
Deal found 2/18$82
This Delta deal was found by Cheapflights users on 2/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/111:52 amIAH - ONT
1 stop6h 42mDelta
Wed 4/26:00 amONT - IAH
1 stop7h 20mDelta
Deal found 2/20$237

Find flights from George Bush Intcntl to Ontario within your budget

Customize your flight search to find flights from George Bush Intcntl 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 February 20, 2025.

Fly from

George Bush Intcntl

Fly to

Ontario

Route

Depart

Return

Price

HoustonOntario

IAH - ONT

IAHONT

Houston George Bush Intcntl

Fri 3/14

12:07 pm-1:43 pm

Nonstop3h 36m

Ontario

Wed 3/26

4:04 pm-9:21 pm

Nonstop3h 17m

$82

HoustonOntario

IAH - ONT

IAHONT

Houston George Bush Intcntl

Tue 4/1

6:10 am-4:34 pm

2 stops12h 24m

Ontario

Wed 4/2

12:46 pm-11:59 pm

1 stop9h 13m

$242

HoustonOntario

IAH - ONT

IAHONT

Houston George Bush Intcntl

Tue 4/1

6:00 am-11:59 am

2 stops7h 59m

Ontario

Wed 4/2

12:50 pm-10:55 pm

2 stops8h 05m

$247

HoustonOntario

IAH - ONT

IAHONT

Houston George Bush Intcntl

Sat 4/12

11:59 am-1:32 pm

Nonstop3h 33m

$48

HoustonOntario

IAH - ONT

IAHONT

Houston George Bush Intcntl

Tue 4/22

8:20 pm-9:58 pm

Nonstop3h 38m

$109

HoustonOntario

IAH - ONT

IAHONT

Houston George Bush Intcntl

Tue 4/15

2:51 pm-10:36 pm

1 stop9h 45m

$119

HoustonOntario

IAH - ONT

IAHONT

Houston George Bush Intcntl

Tue 5/6

6:00 am-11:52 am

2 stops7h 52m

$154

HoustonOntario

IAH - ONT

IAHONT

Houston George Bush Intcntl

Tue 3/25

12:11 pm-11:59 pm

2 stops13h 48m

$222

HoustonOntario

IAH - ONT

IAHONT

Houston George Bush Intcntl

Mon 6/23

2:20 pm-10:37 pm

1 stop10h 17m

$330

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Compare providers for flights from George Bush Intcntl to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from George Bush Intcntl to Ontario in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Houston George Bush Intcntl Airport-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Houston George Bush Intcntl Airport-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Houston George Bush Intcntl Airport-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Houston George Bush Intcntl Airport-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Houston George Bush Intcntl Airport-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from George Bush Intcntl to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from George Bush Intcntl 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 George Bush Intcntl to Ontario

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

How far ahead should I book a flight from Houston George Bush Intcntl Airport to Ontario?

Use this chart to determine the optimal time to book a round-trip flight from George Bush Intcntl to Ontario. Price data was last updated on February 14, 2025.

The best time to book flights from Houston George Bush Intcntl Airport to Ontario is 20 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 Houston George Bush Intcntl Airport to Ontario?

Currently, August is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Ontario (average of $246). Flying from Houston George Bush Intcntl Airport to Ontario in March is currently the most expensive (average of $315). 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 IAH to ONT?

Find hourly flight availability from George Bush Intcntl 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 February 20, 2025.

A simple way to save on the total cost of your ticket is to fly from Houston George Bush Intcntl Airport to Ontario at noon. If you’re flexible enough to do this you can expect to save up to 44% on your trip compared to booking a flight in the afternoon.

What is the cheapest day to fly from Houston George Bush Intcntl Airport to Ontario?

Use this chart to determine the cheapest time to fly round-trip from George Bush Intcntl to Ontario. Price data was last updated on February 16, 2025.

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

Weekly flight availability from Houston George Bush Intcntl Airport to Ontario

Explore weekly flight availability from George Bush Intcntl to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 20, 2025.

The most flights from IAH to ONT are scheduled on a Monday (3 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Ontario by month

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

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

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

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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 February 20, 2025.
Read through reviews of airlines operating flights from Houston to Ontario, such as Alaska Airlines, Delta and United Airlines. 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.
Alaska Airlines
8.0
Very good
9,692 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.1

Overall

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Alaska Airlines
8.0
Very good
9,692 reviews
Alaska Airlines
8.0
Very good
9,692 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.1

Overall

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Delta
8.0
Very good
8,220 reviews
Alaska Airlines
8.0
Very good
9,692 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.1

Overall

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

United Airlines
7.4
Good
8,766 reviews
Alaska Airlines
8.0
Very good
9,692 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.1

Overall

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,692 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.1

Overall

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Frontier
6.0
Okay
3,355 reviews
Alaska Airlines
8.0
Very good
9,692 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.1

Overall

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Related info for your journey

Find useful and relevant information for your journey from George Bush Intcntl to Ontario. 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 into for flights to Ontario from Houston George Bush Intcntl?

    Most people fly into Ontario (ONT) if they book a flight to Ontario from Houston George Bush Intcntl. On average, Ontario has 2 inbound flights from Houston George Bush Intcntl per day from 4 airlines. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

  • What are the cheapest airlines flying from Houston George Bush Intcntl Airport to Ontario round-trip?

    Our cheapest airline available from Houston George Bush Intcntl Airport to Ontario is Frontier. Our recent data shows that you can find tickets from as low as $82 on this airline. An additional option worth looking into is Delta, starting at $237. You may be able to fly from Houston George Bush Intcntl Airport to Ontario for 57% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Houston George Bush Intcntl Airport to Ontario one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $48. However, be on the lookout for offers from United Airlines and Delta, as they are both options that can get you from Houston George Bush Intcntl Airport to Ontario for a low price.

  • What are the most reliable airlines from Houston George Bush Intcntl Airport to Ontario?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Houston George Bush Intcntl Airport to Ontario on time: United Airlines (86%), Lufthansa (73%), Frontier (52%).

  • What are the cheapest flights from Houston George Bush Intcntl Airport to Ontario?

    While on average a flight from Houston George Bush Intcntl Airport to Ontario is generally $109, our data shows the cheapest flight currently is $37. When looking at the most popular route, (Houston George Bush Intcntl - Ontario), you can expect to pay $58 for that flight.

  • Can I find deals for flights from George Bush Intcntl to Ontario that include hotel bookings?

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

  • How can I find direct flights from George Bush Intcntl to Ontario?

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

  • Can I find deals for business class flights from George Bush Intcntl to Ontario?

    Yes. Cheapflights offers flight deals from George Bush Intcntl 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 George Bush Intcntl Airport to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Ontario (average of $246). Flying from Houston George Bush Intcntl Airport to Ontario in March is currently the most expensive (average of $315). 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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Top 4 airlines flying from George Bush Intcntl to Ontario

Discover the top 4 airlines that operate flights from George Bush Intcntl 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$88Average$159FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$100Average$196FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$189Average$378FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$247Average$385FlexibilityNo cancel feeOn-time71%
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