Cheap flights from Ontario to Houston (ONT - IAH)

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The best prices from Ontario to Houston are usually found in April or September, booked 42 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 (IAH)

All the information you need to plan the best ONT to IAH flight in 2022: compare Ontario to Houston flight prices with the expected peak season, weather and rainfall in Houston.
ONT - IAH
Price
$157 - $373
IAH
Temperature
53.6 - 84.2 °F
IAH
Rainfall
3.2 - 5.9 inches

Popular in

November

High demand for flights, 23% potential price rise

Cheapest in

April

Best time to find cheap flights, 45% potential price drop

Round-trip from

$157

From Ontario to Houston

One-way from

$154

One-way flight from Ontario to Houston

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest month to fly from Ontario to Houston?

Our data shows that August tends to be the cheapest month to fly to Houston from Ontario. Users have commonly found prices around $170 for the month, but tickets can be as low as $49. Due to multiple factors, prepare for potentially higher prices in December.

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

Users have found that booking a flight from Ontario to Houston at least 23 days early can save you up to 29% on average compared to booking a flight this week. If booking 23 days before your flight isn’t an option for you, users have found flights from Ontario to Houston for as little as $167 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $215 for flights departing within the next 3 days.

When is the cheapest time to fly from Ontario to Houston (ONT - IAH)?

When flying from Ontario to Houston, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 17% versus a flight in the morning.

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

Wednesday is generally a great day to depart. Flying on this day could help you save up to 11%.

Cheap flights from Ontario to Houston in May, June 2022

The best prices found for ONT to IAH flights for May, June
2 Jun - 7 Jun
$224pp
ONT
Ontario
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
ONT
Ontario
8 Jun - 11 Jun
$232pp
ONT
Ontario
Multiple Airlines
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
ONT
Ontario
20 Jun - 29 Jun
$243pp
ONT
Ontario
Multiple Airlines
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Multiple Airlines
 
1 STOP
ONT
Ontario

Ontario to Houston 2022 flight deals

Cheap flights to Houston from Ontario found for this year
2 Jun - 7 Jun
$224pp
ONT
Ontario
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
ONT
Ontario
8 Jun - 11 Jun
$232pp
ONT
Ontario
Multiple Airlines
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
ONT
Ontario
20 Jun - 29 Jun
$243pp
ONT
Ontario
Multiple Airlines
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Multiple Airlines
 
1 STOP
ONT
Ontario

Non-stop flights to Houston from Ontario

Save time with Ontario to Houston direct flight deals
26 Aug - 28 Aug
$308pp
ONT
Ontario
United Airlines
Non-Stop
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
United Airlines
Non-Stop
ONT
Ontario
2 Aug - 9 Aug
$331pp
ONT
Ontario
United Airlines
Non-Stop
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
United Airlines
Non-Stop
ONT
Ontario
3 Aug - 10 Aug
$338pp
ONT
Ontario
United Airlines
Non-Stop
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
United Airlines
Non-Stop
ONT
Ontario

Last minute flights from Ontario to Houston

Late deals on round-trip flights to Houston from Ontario, departing today and this week
26 May - 29 May
$266pp
ONT
Ontario
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
ONT
Ontario
26 May - 29 May
$269pp
ONT
Ontario
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
ONT
Ontario
26 May - 28 May
$279pp
ONT
Ontario
Frontier
 
1 STOP
IAH
Houston George Bush Intcntl
IAH
Houston George Bush Intcntl
Frontier
 
1 STOP
ONT
Ontario

One-way flights to Houston from Ontario

The cheapest one-way flights from Ontario to Houston
7:35 pm - 12:33 am
United Airlines
Nonstop
2h 58m
ONT - IAH
United Airlines
$154
United
5:53 pm - 7:36 am
Multiple Airlines
1 Stop
11h 43m
ONT - IAH
Multiple Airlines
$155
Kiwi.com
2:13 am - 2:12 pm
Delta
2 Stops
9h 59m
ONT - IAH
Delta
$168
Delta

Related info for your journey

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

Flight FAQs

From Ontario to Houston

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

Located just 3.1 mi from the city center, Ontario is the airport most travelers will use when flying to Houston from Ontario. Booking flights from Ontario (ONT) to Houston should be relatively easy as there are 0 daily outbound flights to Houston from 6 different airlines.

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

Due to the rapidly changing circumstances due to COVID-19, airlines like United Airlines, American Airlines, and Frontier flying from Ontario to Houston have implemented new flexible cancellation policies.

Can I find flights from Ontario to Houston for under $300 on Cheapflights?

Yes, there are multiple flights from Ontario to Houston for under $300. The cheapest flight booked recently is on Frontier for just $224, but on average you can expect to pay $260.

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

Cheapflights has at least 20 direct flights from Ontario to Houston under $400. A good price for a nonstop flight from Ontario to Houston is less than $411.

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

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

How popular is this Ontario to Houston flight route?

This flight path from Ontario to Houston was viewed by 40 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

Frontier, at $224, was found to be the cheapest airline from Ontario to Houston.. Frontier is priced at 22% lower than the current average price of a flight leaving 3 months from now.

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

$120 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on United Airlines and Delta, with prices starting from $154 and $163, respectively.

What are the cheapest flights from Ontario to Houston?

The cheapest flight price from Ontario to Houston is $19. On average you can expect to pay $600. The most popular route, (Ontario - Houston Hobby), can usually be booked for $246.

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

Consider American Airlines, Delta or Frontier when booking your flight. These represent the most popular airlines when flying from Ontario to Houston.

COVID Restrictions

View COVID Travel Restrictions for Houston, TX

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

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

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

COVID-19 testing requirements
Visitors from Ontario must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Houston.

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

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

Returning to Ontario from Houston

COVID-19 testing requirements
Visitors from Houston must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Ontario.

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

Hide COVID Travel Restrictions for Houston, TX

Alternative routes for Ontario to Houston

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

Destination information for Houston

Things to know before you go - useful duration and weather info for your trip from Ontario to Houston.
Flight duration from ONT to Houston
3h 02m
Average temperature for May in Houston
77.0 °F

Airports servicing Ontario

Airports servicing Houston

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.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Frontier
$62 $192 No cancel fee 62%
American Airlines
$127 $496 No cancel fee 71%
Spirit Airlines
$130 $195 No cancel fee 65%
Delta
$147 $292 No cancel fee N/A
United Airlines
$178 $360 No cancel fee 69%

Hourly flight availability from Ontario to Houston

See what time of day planes typically take off from Ontario towards Houston.
Evening 6 PM to midnight 53% of ONT to IAH departures
Afternoon Noon to 6 PM 46% of ONT to IAH departures
Early morning Midnight to 6 AM 1% of ONT to IAH departures
Morning 6 AM to noon 0% of ONT to IAH departures
Midnight
6 AM
Noon
6 PM
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