Cheap flights from Ontario (ONT) to Houston from $79

This is the cheapest one-way flight price, found on 5/24. Prices may vary by date and flight preferences.
ONT — IAH
May 30 — Jun 61

The best prices from Ontario to Houston are usually found in January or February, booked 45 days in advance, depart on a Thursday or Wednesday and return on a Monday

How to find the cheapest flight from Ontario (ONT) to Houston

All the information you need to plan the best ONT to HO1 flight in 2023: compare Ontario to Houston flight prices with the expected peak season, weather and rainfall in Houston.

Popular in

June

Cheapest in

January

Round-trip from

$170

One-way from

$137
High demand for flights, 29% potential price rise
Best time to find cheap flights, 47% potential price drop
From Ontario to Houston
One-way flight from Ontario to Houston

ONT - IAH

Price

$170 - $456

IAH

Temperature

53.6 - 84.2 °F

IAH

Rainfall

3.2 - 5.9 inches

Cheap flights from Ontario to Houston in May, June 2023

The best prices found for ONT to Houston flights for May, June
Check out some of the best flight deals from Ontario to Houston in 2023. For more flight deals, be sure to check back very soon.

Ontario to Houston 2023 flight deals

Cheap flights to Houston from Ontario found for this year
Check out some of the best flight deals from Ontario to Houston in 2023. For more flight deals, be sure to check back very soon.

Cheap Frontier flights from Ontario to Houston

Peruse some of the lowest-priced Frontier flights we've found from Ontario to Houston. Make sure to check back often as deals are often changing.

Cheap United Airlines flights from Ontario to Houston

Take a gander at the lowest prices we've found on United Airlines flights from Ontario to Houston. Deals frequently update to provide users with more options.

Non-stop flights to Houston from Ontario

Save time with Ontario to Houston direct flight deals
To help reduce your travel time, choose from one of these non-stop flights from Ontario to Houston. Search for alternative flights from Ontario to Houston by utilizing the search form above.

Last minute flights from Ontario to Houston

Late deals on return flights to Houston from Ontario, departing today and this week
Have a look at some of the flights available from Ontario to Houston departing last-minute. Users should be sure to double check the price, date, and time of their last-minute flight.

One-way flights to Houston from Ontario

The cheapest one-way flights from Ontario to Houston
Take a look at some of the one-way flights we've detected from Ontario to Houston. For those needing a return trip from Ontario, there is a search form available above.

Find flights from Ontario to Houston within your budget

Use the slider to find flights from Ontario to Houston that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$150 - $317

Route

Depart

Return

Price

OntarioHouston George Bush Intcntl

ONT - IAH

ONTIAH

Ontario

Tue 6/6

1 stop15h 27m

Houston George Bush Intcntl

Tue 6/13

1 stop18h 01m

OntarioHouston George Bush Intcntl

ONT - IAH

ONTIAH

Ontario

Wed 6/28

1 stop5h 20m

Houston George Bush Intcntl

Tue 7/4

1 stop11h 05m

OntarioHouston George Bush Intcntl

ONT - IAH

ONTIAH

Ontario

Wed 6/21

1 stop5h 20m

Houston George Bush Intcntl

Wed 6/28

1 stop18h 15m

OntarioHouston George Bush Intcntl

ONT - IAH

ONTIAH

Ontario

Tue 6/13

1 stop14h 43m

Houston George Bush Intcntl

Tue 6/20

1 stop21h 01m

OntarioHouston George Bush Intcntl

ONT - IAH

ONTIAH

Ontario

Wed 6/14

1 stop17h 22m

Houston George Bush Intcntl

Tue 6/20

1 stop21h 01m

OntarioHouston George Bush Intcntl

ONT - IAH

ONTIAH

Ontario

Mon 7/10

1 stop9h 40m

Houston George Bush Intcntl

Tue 7/18

1 stop11h 19m

OntarioHouston Hobby

ONT - HOU

ONTHOU

Ontario

Tue 7/11

1 stop8h 28m

Houston Hobby

Tue 7/18

1 stop6h 42m

OntarioHouston George Bush Intcntl

ONT - IAH

ONTIAH

Ontario

Tue 8/1

1 stop5h 43m

Houston George Bush Intcntl

Tue 8/8

1 stop6h 28m

OntarioHouston Hobby

ONT - HOU

ONTHOU

Ontario

Fri 8/4

1 stop7h 04m

Houston Hobby

Wed 8/9

1 stop5h 24m

Flights are sorted by cheapest first

Deals found on 5/24

Reviews of Airlines Servicing Houston

Read through reviews of airlines operating flights from Ontario to Houston, such as Frontier, United Airlines and Undisclosed Carrier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
2,342 reviews

Boarding

8.1

Food

7.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 10

There was limited food and drink options (no coffee/tea) and my tray was broken and inoperable so I couldn’t even put my drink down to eat my tiny bag of chips.

Delta
8.0
Very good
2,342 reviews
Delta
8.0
Very good
2,342 reviews

Boarding

8.1

Food

7.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 10

There was limited food and drink options (no coffee/tea) and my tray was broken and inoperable so I couldn’t even put my drink down to eat my tiny bag of chips.

United Airlines
7.6
Good
1,488 reviews
Delta
8.0
Very good
2,342 reviews

Boarding

8.1

Food

7.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 10

There was limited food and drink options (no coffee/tea) and my tray was broken and inoperable so I couldn’t even put my drink down to eat my tiny bag of chips.

American Airlines
7.4
Good
2,147 reviews
Delta
8.0
Very good
2,342 reviews

Boarding

8.1

Food

7.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 10

There was limited food and drink options (no coffee/tea) and my tray was broken and inoperable so I couldn’t even put my drink down to eat my tiny bag of chips.

Frontier
5.9
Fair
644 reviews
Delta
8.0
Very good
2,342 reviews

Boarding

8.1

Food

7.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 10

There was limited food and drink options (no coffee/tea) and my tray was broken and inoperable so I couldn’t even put my drink down to eat my tiny bag of chips.

Related info for your journey

Useful info, stats and facts about Ontario to Houston flights.

Other flights from Ontario

Alternative routes for Ontario to Houston

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Ontario to Houston

The chart below displays the airlines Cheapflights users traveling from Ontario to Houston choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Spirit AirlinesCheapest$84Average$217FlexibilityNo cancel feeOn-time65%COVID-19 safety
Search Spirit Airlines flights
DeltaCheapest$139Average$370FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights
FrontierCheapest$145Average$220FlexibilityNo cancel feeOn-time62%COVID-19 safety
Search Frontier flights
United AirlinesCheapest$196Average$433FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights
American AirlinesCheapest$283Average$544FlexibilityNo cancel feeOn-time71%COVID-19 safety
Search American Airlines flights

Weekly flight availability from Ontario to Houston

See how many times per day planes take to the skies headed from Ontario to Houston
Sunday2daily flights
Monday1daily flight
Tuesday1daily flight
Wednesday1daily flight
Thursday1daily flight
Friday1daily flight
Saturday0daily flights
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.