Frontier's UpFront Plus offers empty middle seats for added comfort on 3-hour flights.
Frontier's Zone 1 boarding available with carry-on purchase, ensuring early boarding.
$67+ 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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — ONT
mar. 30 — abr. 61
1 adult, Economy
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Find cheap flights from George Bush Intcntl to Ontario with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Houston George Bush Intcntl to Ontario are usually found in September or February, booked 52 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 marzo 25, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $134 (Frontier) |
One-way from | $67 (Frontier) |
Popular in | December |
Cheapest in | September |
Average price | $180 |
Good round-trip deal | $113 or less |
Good one-way deal | $78 or less |
Find flight deals from George Bush Intcntl to Ontario
Cheapest flights from George Bush Intcntl to OntarioExplore 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 marzo 25, 2025.
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 marzo 25, 2025.
This Kiwi.com deal was found by Cheapflights users on 3/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 4/1911:59 amIAH - ONT
Nonstop3h 33mFrontier
dom. 4/204:04 pmONT - IAH
Nonstop3h 02mFrontier
Deal found 3/25![Frontier logo]()
$133
This United Airlines deal was found by Cheapflights users on 3/24. 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.
vie. 5/98:20 pmIAH - ONT
Nonstop3h 40mUnited Airlines
lun. 5/121:45 pmONT - IAH
1 stop6h 44mUnited Airlines
Deal found 3/24![United Airlines logo]()
$183
This American Airlines deal was found by Cheapflights users on 3/24. 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.
lun. 4/148:27 pmIAH - ONT
1 stop5h 23mAmerican Airlines
sáb. 4/264:35 pmONT - IAH
1 stop4h 55mAmerican Airlines
Deal found 3/24![American Airlines logo]()
$197
This Delta deal was found by Cheapflights users on 3/24. 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.
vie. 5/307:00 pmIAH - ONT
1 stop6h 42mDelta
mar. 6/310:01 amONT - IAH
1 stop5h 55mDelta
Deal found 3/24![Delta logo]()
$237
This Alaska Airlines deal was found by Cheapflights users on 3/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/245:54 pmIAH - ONT
1 stop8h 03mAlaska Airlines
jue. 5/297:20 pmONT - IAH
1 stop9h 00mAlaska Airlines
Deal found 3/24![Alaska Airlines logo]()
$331
Cheapflights Fare Finder
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 marzo 25, 2025.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Ontario that are best for you.
Fly from
George Bush Intcntl
Fly to
Ontario
Route
Depart
Return
Price
HoustonOntario
IAH - ONT
IAHONT
Houston George Bush Intcntl
sáb. 4/19
11:59 am-1:32 pm
Nonstop3h 33m
Ontario
dom. 4/20
4:04 pm-9:06 pm
Nonstop3h 02m
$133
HoustonOntario
IAH - ONT
IAHONT
Houston George Bush Intcntl
vie. 5/9
8:20 pm-10:00 pm
Nonstop3h 40m
Ontario
lun. 5/12
1:45 pm-10:29 pm
1 stop6h 44m
$183
HoustonOntario
IAH - ONT
IAHONT
Houston George Bush Intcntl
lun. 4/14
8:27 pm-11:50 pm
1 stop5h 23m
Ontario
sáb. 4/26
4:35 pm-11:30 pm
1 stop4h 55m
$197
HoustonOntario
IAH - ONT
IAHONT
Houston George Bush Intcntl
vie. 5/30
7:00 pm-11:42 pm
1 stop6h 42m
Ontario
mar. 6/3
10:01 am-5:56 pm
1 stop5h 55m
$237
HoustonOntario
IAH - ONT
IAHONT
Houston George Bush Intcntl
sáb. 5/24
5:54 pm-11:57 pm
1 stop8h 03m
Ontario
jue. 5/29
7:20 pm-6:20 am
1 stop9h 00m
$331
HoustonOntario
IAH - ONT
IAHONT
Houston George Bush Intcntl
dom. 4/27
12:09 pm-1:42 pm
Nonstop3h 33m
$67
HoustonOntario
IAH - ONT
IAHONT
Houston George Bush Intcntl
sáb. 4/26
5:00 am-9:54 am
1 stop6h 54m
$99
HoustonOntario
IAH - ONT
IAHONT
Houston George Bush Intcntl
lun. 5/12
8:20 pm-10:00 pm
Nonstop3h 40m
$106
HoustonOntario
IAH - ONT
IAHONT
Houston George Bush Intcntl
vie. 5/23
7:00 pm-11:42 pm
1 stop6h 42m
$119
HoustonOntario
IAH - ONT
IAHONT
Houston George Bush Intcntl
jue. 4/17
8:26 am-11:59 pm
2 stops17h 33m
$164
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 March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
The best insider tips for Houston George Bush Intcntl Airport to Ontario flights
Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Houston George Bush Intcntl Airport to Ontario trip
Airlines
![Frontier]()
Frontier
![United Airlines]()
United Airlines
United's Economy Plus offers extra legroom, ideal for comfort on 3-hour flights.
United's Basic Economy restricts carry-ons; consider this when booking for a 3-hour flight.
Airports
Our travel experts
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.
Cheapflights Insights
Everything you need to know about your flight from Houston George Bush Intcntl Airport to Ontario
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 March 21, 2025.
The best time to book flights from Houston George Bush Intcntl Airport to Ontario is 52 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 $324). 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 marzo 25, 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 41% 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 March 23, 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.
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 marzo 25, 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.
Crew
8.5
Boarding
8.2
Comfort
7.9
Food
7.1
Overall
8.0
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentSeleste,Dec 2024
FAT - SAN
Crew
8.5
Boarding
8.2
Comfort
7.9
Food
7.1
Overall
8.0
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentSeleste,Dec 2024
FAT - SAN
Crew
8.5
Boarding
8.2
Comfort
7.9
Food
7.1
Overall
8.0
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentSeleste,Dec 2024
FAT - SAN
Crew
8.5
Boarding
8.2
Comfort
7.9
Food
7.1
Overall
8.0
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentSeleste,Dec 2024
FAT - SAN
Crew
8.5
Boarding
8.2
Comfort
7.9
Food
7.1
Overall
8.0
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentSeleste,Dec 2024
FAT - SAN
Crew
8.5
Boarding
8.2
Comfort
7.9
Food
7.1
Overall
8.0
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentSeleste,Dec 2024
FAT - SAN
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.
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Alternative routes for George Bush Intcntl to Ontario
See prices for flight routes from nearby airports that may be better suited for you.
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 marzo 25, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$86 | Average$155 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$100 | Average$196 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$189 | Average$376 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$246 | Average$377 | FlexibilityNo cancel fee | On-time71% |