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$167+ Cheap flights from Hobby (HOU) 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 3/28. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — ONT
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Cheapflights Tip: The best prices from Houston Hobby to Ontario are usually found in February or April, booked 55 days in advance, depart on a Saturday or Tuesday and return on a Tuesday

Cheap flight deals from Hobby to Ontario

Cheapest flights from Hobby to Ontario
Explore the most affordable flight options available from Hobby to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.

This Southwest deal was found by Cheapflights users on 1/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2612:00 pm
HOU
-
ONT
Nonstop3h 35m
Southwest
Mon 3/212:55 pm
ONT
-
HOU
Nonstop3h 00m
Southwest
Deal found 1/25$333
This Southwest deal was found by Cheapflights users on 1/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/259:30 pm
HOU
-
ONT
Nonstop3h 35m
Southwest
Sat 3/282:45 pm
ONT
-
HOU
Nonstop2h 55m
Southwest
Deal found 1/24$345
This American Airlines deal was found by Cheapflights users on 1/23. 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.
Wed 3/46:00 am
HOU
-
ONT
1 stop6h 06m
American Airlines
Mon 3/911:58 pm
ONT
-
HOU
1 stop7h 45m
American Airlines
Deal found 1/23$353
This Southwest deal was found by Cheapflights users on 1/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/118:10 am
HOU
-
ONT
Nonstop3h 25m
Southwest
Tue 4/211:55 pm
ONT
-
HOU
1 stop5h 40m
Southwest
Deal found 1/25$355
This Southwest deal was found by Cheapflights users on 1/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/710:50 pm
HOU
-
ONT
Nonstop3h 35m
Southwest
Mon 3/95:25 am
ONT
-
HOU
2 stops6h 35m
Southwest
Deal found 1/24$360
This American Airlines deal was found by Cheapflights users on 1/24. 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.
Sat 2/1412:18 pm
HOU
-
ONT
1 stop12h 31m
American Airlines
Wed 2/2511:58 pm
ONT
-
HOU
1 stop7h 45m
American Airlines
Deal found 1/24$361
This Southwest deal was found by Cheapflights users on 1/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/198:00 am
HOU
-
ONT
Nonstop3h 35m
Southwest
Wed 3/45:15 am
ONT
-
HOU
Nonstop3h 00m
Southwest
Deal found 1/25$362
This Southwest deal was found by Cheapflights users on 1/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/109:30 pm
HOU
-
ONT
Nonstop3h 35m
Southwest
Sat 3/149:55 pm
ONT
-
HOU
1 stop9h 45m
Southwest
Deal found 1/26$365

Find flight deals from Hobby to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Hobby (HOU) 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 January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$333
(Southwest)

One-way from

$167
(Southwest)

Popular in

December

Cheapest in

February

Average price

$229

Good round-trip deal

$391 or less
Provider with most accurate pricing for Houston Hobby-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Houston Hobby-Ontario flights.
Search Deals
From Houston Hobby to Ontario
Search Deals
One-way flight from Houston Hobby to Ontario
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($48 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Houston Hobby to Ontario.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Hobby 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 January 26, 2026.
Use the filters below to find and compare flights from Houston Hobby Airport to Ontario that are best for you.

Fly from

Hobby

Fly to

Ontario

Route

Depart

Return

Price

HoustonOntario

HOU - ONT

HOUONT

Houston Hobby

Thu 2/26

12:00 pm-1:35 pm

Nonstop3h 35m

Ontario

Mon 3/2

12:55 pm-5:55 pm

Nonstop3h 00m

$333

HoustonOntario

HOU - ONT

HOUONT

Houston Hobby

Wed 3/25

9:30 pm-11:05 pm

Nonstop3h 35m

Ontario

Sat 3/28

9:45 pm-4:45 am

1 stop5h 00m

$343

HoustonOntario

HOU - ONT

HOUONT

Houston Hobby

Sat 4/11

8:10 am-9:35 am

Nonstop3h 25m

Ontario

Tue 4/21

1:55 pm-9:35 pm

1 stop5h 40m

$355

HoustonOntario

HOU - ONT

HOUONT

Houston Hobby

Thu 3/26

2:40 pm-10:05 pm

2 stops9h 25m

Ontario

Mon 3/30

11:55 pm-9:15 am

1 stop7h 20m

$370

HoustonOntario

HOU - ONT

HOUONT

Houston Hobby

Sat 3/7

7:10 pm-12:05 am

2 stops6h 55m

Ontario

Mon 3/9

1:10 pm-10:30 pm

1 stop7h 20m

$370

HoustonOntario

HOU - ONT

HOUONT

Houston Hobby

Thu 3/5

8:55 pm-10:30 pm

Nonstop3h 35m

Ontario

Sun 3/8

2:45 pm-7:40 pm

Nonstop2h 55m

$371

HoustonOntario

HOU - ONT

HOUONT

Houston Hobby

Fri 3/27

8:55 pm-10:30 pm

Nonstop3h 35m

Ontario

Tue 3/31

1:20 pm-6:15 pm

Nonstop2h 55m

$371

HoustonOntario

HOU - ONT

HOUONT

Houston Hobby

Thu 2/19

2:30 pm-8:05 pm

1 stop7h 35m

Ontario

Wed 3/4

5:15 am-10:15 am

Nonstop3h 00m

$372

HoustonOntario

HOU - ONT

HOUONT

Houston Hobby

Sat 3/28

10:50 pm-12:25 am

Nonstop3h 35m

$167

HoustonOntario

HOU - ONT

HOUONT

Houston Hobby

Tue 3/31

9:30 pm-11:05 pm

Nonstop3h 35m

$167

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/24

Showing 1-10 of 19 results
1
2

Compare providers for flights from Hobby 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 Hobby to Ontario in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
PricelinePrice Accuracy1 starTrust Score*3 stars
Justfly.comPrice 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 Hobby 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 Hobby Airport-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Houston Hobby Airport-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Houston Hobby 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 Hobby 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 Hobby to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Hobby 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 Hobby Airport to Ontario

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

Use this chart to determine the optimal time to book a round-trip flight from Hobby to Ontario. Price data was last updated on January 23, 2026.

To ensure you get the cheapest price possible for a flight from Houston Hobby Airport to Ontario, you should look to book at least 55 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, December is the cheapest month in which you can book a flight from Houston Hobby Airport to Ontario (average of $59). Flying from Houston Hobby Airport to Ontario in June is currently the most expensive (average of $111). 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 HOU to ONT?

Find hourly flight availability from Hobby 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 January 26, 2026.

When flying from Houston Hobby Airport to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

The best insider tips for Houston Hobby Airport to Ontario flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Houston Hobby Airport to Ontario trip
Our travel experts
Bill Fink

Bill Fink

Expert on ONT

Bill is an award-winning travel writer with extensive credits covering airlines and the aviation industry for publications including AARP, AFAR, The Points Guy and Yahoo. Based in Portland, Oregon, Bill has traveled to more than 75 countries - and been late for his flight in most of them. He once achieved top-level frequent flier status for all of American, Delta and United Airlines during a single year.

Read more
Scott Laird

Scott Laird

Expert on HOU

Originally from Anchorage, Alaska, Scott is a frequent contributor to Fodor’s Travel Guide, Conde Nast Traveler, TravelAge West, and TravelPulse. He holds a Bachelor of Science in Organizational Management from Alaska Pacific University and a Master of Science in Airline Management from Embry-Riddle Aeronautical University, and has worked in the airline and hotel industries and as a travel consultant.

Read more

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 January 26, 2026.
Get a feel of what it's like to fly with Southwest, United Airlines, and American Airlines from Houston Hobby Airport to Ontario by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,268 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,268 reviews
Southwest
8.0
Very good
4,268 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
9,199 reviews
Southwest
8.0
Very good
4,268 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
11,189 reviews
Southwest
8.0
Very good
4,268 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.7
Fair
3,057 reviews
Southwest
8.0
Very good
4,268 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Hobby 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 Hobby?

    Ontario (ONT) is the airport you will fly into if you book a flight from Houston Hobby to Ontario. You should not have trouble finding flights to Ontario from Houston Hobby; the airport handles an average of 1 inbound flight from Houston Hobby per day. You should also have plenty of airline options to choose from since 4 airlines have flights to the Ontario airport from Houston Hobby. It is only a 3.1 mi journey from Ontario (ONT) to Ontario’s city center.

  • How long is the flight from Houston Hobby Airport to Ontario?

    There are many flights that can get you from Houston Hobby Airport to Ontario in 3h 35m. Fly via Southwest to get the fastest option. Airlines will cover a distance of 1341 mi. Most flights are nonstop.

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

    Frontier, at $78, was found to be the cheapest airline from Houston Hobby Airport to Ontario.Alternate airlines to your destination round-trip include United Airlines and American Airlines. These flights start at 66% lower than the current average price 3 months from now.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $42. Users have also found prices from $88 and $95 on Southwest and United Airlines, respectively.

  • What are the cheapest flights from Houston Hobby Airport to Ontario?

    On average you can expect to pay $441 for a flight from Houston Hobby Airport to Ontario. The cheapest flight overall is $333 while the most popular route, (Houston Hobby - Ontario) is currently priced at $184.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Hobby 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 Hobby Airport to Ontario?

    Currently, December is the cheapest month in which you can book a flight from Houston Hobby Airport to Ontario (average of $59). Flying from Houston Hobby Airport to Ontario in June is currently the most expensive (average of $111). 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.

See more FAQs

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Alternative routes for Hobby to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Hobby to Ontario

Discover the top 4 airlines that operate flights from Hobby 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 January 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$78Average$166FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$156Average$380FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$186Average$363FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$224Average$372FlexibilityNo cancel feeOn-time63%

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