Cheap flights from Houston to Ontario (IAH - ONT)

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The best prices from Houston to Ontario are usually found in October or January, booked 35 days in advance, depart on a Monday or Wednesday and return on a Thursday

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

All the information you need to plan the best IAH to ONT flight in 2022: compare Houston to Ontario flight prices with the expected peak season, weather and rainfall in Ontario.
IAH - ONT
Price
$207 - $392
ONT
Temperature
53.6 - 78.8 °F
ONT
Rainfall
0.1 - 3.4 inches

Popular in

March

High demand for flights, 19% potential price rise

Cheapest in

October

Best time to find cheap flights, 35% potential price drop

Round-trip from

$207

From Houston to Ontario

One-way from

$90

One-way flight from Houston to Ontario

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
When is the cheapest time to fly from Houston to Ontario (IAH - ONT)?

A simple way to save on the total cost of your ticket is to fly from Houston to Ontario in the afternoon. If you’re flexible enough to do this you can expect to save up to 30% on your trip compared to booking a flight at noon.

What is the cheapest day to fly round-trip from Houston to Ontario?

Sunday is generally a great day to depart. Flying on this day could help you save up to 18%.

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

Find a great deal and save up to 42% by booking at least 29 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Houston to Ontario within the next two weeks, with the cheapest ticket starting at $220.

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

Our data shows that October tends to be the cheapest month to fly to Ontario from Houston. Users have commonly found prices around $206 for the month, but tickets can be as low as $58. Due to multiple factors, prepare for potentially higher prices in June.

Cheap flights from Houston to Ontario in June, July 2022

The best prices found for IAH to ONT flights for June, July
12 Jul - 13 Jul
$188pp
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl
28 Jul - 4 Aug
$189pp
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl
19 Jul - 27 Jul
$195pp
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl

Houston to Ontario 2022 flight deals

Cheap flights to Ontario from Houston found for this year
18 Aug - 22 Aug
$181pp
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl
10 Aug - 15 Aug
$184pp
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl
11 Aug - 15 Aug
$188pp
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl

Non-stop flights to Ontario from Houston

Save time with Houston to Ontario direct flight deals
26 Aug - 28 Aug
$308pp
IAH
Houston George Bush Intcntl
United Airlines
Non-Stop
ONT
Ontario
ONT
Ontario
United Airlines
Non-Stop
IAH
Houston George Bush Intcntl
6 Aug - 9 Aug
$338pp
IAH
Houston George Bush Intcntl
United Airlines
Non-Stop
ONT
Ontario
ONT
Ontario
United Airlines
Non-Stop
IAH
Houston George Bush Intcntl
21 Jul - 24 Jul
$359pp
IAH
Houston George Bush Intcntl
United Airlines
Non-Stop
ONT
Ontario
ONT
Ontario
United Airlines
Non-Stop
IAH
Houston George Bush Intcntl

Last minute flights from Houston to Ontario

Late deals on round-trip flights to Ontario from Houston, departing today and this week
8 Jul - 15 Aug
$208pp
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl
8 Jul - 13 Jul
$216pp
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl
8 Jul - 15 Jul
$228pp
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl

One-way flights to Ontario from Houston

The cheapest one-way flights from Houston to Ontario
6:05 am - 10:53 am
Frontier
1 Stop
6h 48m
IAH - ONT
Frontier
$90
Flights by SU
6:23 pm - 7:15 am
Frontier
1 Stop
14h 52m
IAH - ONT
Frontier
$93
Flights by SU
6:23 pm - 8:11 am
Frontier
1 Stop
15h 48m
IAH - ONT
Frontier
$96
Flights by SU

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Houston</span> to <span class="emphasized">Ontario</span> flights.

Flight FAQs

From Houston to Ontario

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

Ontario (ONT), located 3.1 mi from the city center, is the airport you fly into when you book flights from Houston to Ontario. 6 airlines have flights to Ontario from Houston on a regular basis. Booking flights from Houston to Ontario should not be difficult; the airport handles an average of 0 inbound flights from Houston per day.

Which airlines flying from Houston to Ontario have flexible cancellations due to COVID-19?

United Airlines, American Airlines, and Frontier are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Houston to Ontario for under $200 on Cheapflights?

Yes, there are multiple flights from Houston to Ontario for under $200. The cheapest flight booked recently is on Frontier for just $181, but on average you can expect to pay $211.

Are there nonstop flights from Houston to Ontario for under $400 on Cheapflights?

Cheapflights has at least 20 direct flights from Houston to Ontario under $400. A good price for a nonstop flight from Houston to Ontario is less than $396.

Are there last-minute flights available from Houston to Ontario for under $300?

There are currently 20+ open flights from Houston to Ontario within the next 7 days for less than $300.

What days are nonstop flights available from Houston to Ontario?

You can find nonstop flights on the following days: Saturday.

How popular is this Houston to Ontario flight route?

This flight path from Houston to Ontario was viewed by 27 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

How many flights depart from Houston to Ontario on average per day?

2 flight departures from Houston to Ontario per day on average.
Evening (6pm - Midnight) - 100% of flight departures

How long is the flight from Houston to Ontario?

There are many flights that can get you from Houston to Ontario in 14h 35m. Fly via Frontier to get the fastest option. The distance between Houston and Ontario is about 1339 mi.

What is the cheapest airline to fly from Houston to Ontario round-trip?

Currently priced at $181, Frontier will fly you from Houston to Ontario and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Frontier is currently priced 42% below the average price you’ll pay for this route.

What are the cheapest flights from Houston to Ontario?

On average you can expect to pay $580 for a flight from Houston to Ontario. The cheapest flight overall is $164 while the most popular route, (Houston Hobby - Ontario) is currently priced at $188.

What are the most popular airlines that fly from Houston to Ontario?

When booking a flight from Houston to Ontario, you may want to consider flying on American Airlines, Delta or Frontier as they are the most popular for this route.

COVID Restrictions

View COVID Travel Restrictions for Ontario, CA

Do I need a COVID test to fly to Ontario from Houston?

Information is based on travel restrictions for travel to Ontario within the United States

Most visitors from Houston need to provide a negative COVID-19 test result and/or quarantine to enter Ontario.

COVID-19 testing requirements
Visitors from Houston are not required to present a negative COVID-19 PCR test or antigen result upon entering Ontario.

Quarantine requirements
Visitors from Houston are not required to quarantine after entering Ontario.

Do I need a test to fly back to Houston from Ontario?

Returning to Houston from Ontario

COVID-19 testing requirements
Visitors from Ontario are not required to present a negative COVID-19 PCR test or antigen result upon entering Houston.

Quarantine requirements
Visitors from Ontario are not required to quarantine after entering Houston.

Hide COVID Travel Restrictions for Ontario, CA

Alternative routes for Houston to Ontario

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

Destination information for Ontario

Things to know before you go - useful duration and weather info for your trip from Houston to Ontario.

Airports servicing Houston

Airports servicing Ontario

Top 4 airlines flying from Houston to Ontario

The chart below displays the airlines Cheapflights users traveling from Houston to Ontario choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Frontier
$60 $218 No cancel fee 62%
Delta
$95 $361 No cancel fee N/A
American Airlines
$182 $410 No cancel fee 71%
United Airlines
$216 $390 No cancel fee 69%

Hourly flight availability from Houston to Ontario

See what time of day planes typically take off from Houston towards Ontario.
Evening 6 PM to midnight 100% of IAH to ONT departures
Early morning Midnight to 6 AM 0% of IAH to ONT departures
Morning 6 AM to noon 0% of IAH to ONT departures
Afternoon Noon to 6 PM 0% of IAH to ONT departures
Midnight
6 AM
Noon
6 PM
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