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$39 Find cheap flights from Ontario to Houston George Bush Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to George Bush Intcntl departing on 6/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Thu 6/6
Thu 6/13

Search hundreds of travel sites at once for deals on flights to Houston George Bush Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Houston, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Houston, as well as popular online travel agencies
In the last 7 days travelers have searched 43,707,506 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

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Filter your dealsChoose cabin class, free Wi-Fi and more.

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Cheap flight deals from Ontario to George Bush Intcntl (ONT-IAH)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to George Bush Intcntl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
5:28 pm - 10:30 pmONT-IAH
3h 02mnonstop
7:37 pm - 8:56 pmIAH-ONT
3h 19mnonstop
$83Frontier
Find Deal
Wed, Jun 5 - Wed, Jun 12
4:48 pm - 9:52 pmONT-IAH
3h 04mnonstop
8:50 pm - 10:09 pmIAH-ONT
3h 19mnonstop
$88Frontier
Find Deal
Wed, Sep 4 - Wed, Sep 11
4:48 pm - 9:52 pmONT-IAH
3h 04mnonstop
8:50 pm - 10:09 pmIAH-ONT
3h 19mnonstop
$98Frontier
Find Deal
Sat, Sep 7 - Sat, Sep 14
4:19 pm - 9:21 pmONT-IAH
3h 02mnonstop
8:53 pm - 10:14 pmIAH-ONT
3h 21mnonstop
$99Frontier
Find Deal
Wed, May 22 - Wed, May 29
2:35 pm - 8:44 amONT-IAH
16h 09m1 stop
8:53 pm - 10:14 pmIAH-ONT
3h 21mnonstop
$107Frontier
Find Deal
Wed, May 22 - Wed, May 29
4:48 pm - 9:52 pmONT-IAH
3h 04mnonstop
8:14 pm - 9:33 pmIAH-ONT
3h 19mnonstop
$108Frontier
Find Deal
Fri, Aug 23 - Mon, Aug 26
4:48 pm - 9:52 pmONT-IAH
3h 04mnonstop
9:42 am - 7:37 pmIAH-ONT
11h 55m1 stop
$109Frontier
Find Deal
Wed, Aug 7 - Wed, Aug 14
5:28 pm - 10:30 pmONT-IAH
3h 02mnonstop
9:35 am - 11:49 pmIAH-ONT
16h 14m1 stop
$112Frontier
Find Deal
Wed, Jun 5 - Wed, Jun 12
1:25 pm - 9:43 pmONT-IAH
6h 18m1 stop
7:15 am - 12:17 pmIAH-ONT
7h 02m1 stop
$248Delta
Find Deal
Tue, Jun 11 - Sat, Jun 15
12:53 pm - 9:18 pmONT-IAH
6h 25m2 stops
5:00 am - 9:49 amIAH-ONT
6h 49m1 stop
$253American Airlines
Find Deal
Wed, May 29 - Tue, Jun 4

Flights from Ontario to George Bush Intcntl - Travel Insights & Trends

Get data-powered insights and trends into flights from Ontario to George Bush Intcntl to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Ontario to Houston George Bush Airport?

The average price of all flights from Ontario to Houston George Bush Intcntl Airport clicked on KAYAK for each day over the last 12 months.
For Ontario to Houston George Bush Airport, Friday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Houston George Bush Airport back to Ontario, the best deals are generally found on Monday, with Thursday being the most expensive.

What is the cheapest month to fly from Ontario to Houston George Bush Intcntl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ontario to Houston George Bush Intcntl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Ontario to Houston George Bush Intcntl Airport is August, where tickets cost $198 on average. On the other hand, the most expensive months are December and June, where the average cost of tickets is $318 and $294 respectively.

How far in advance should I book a flight from Ontario to Houston George Bush Intcntl Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Ontario to Houston George Bush Intcntl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Ontario to Houston George Bush Intcntl Airport, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 50 days before departure.

Which airlines provide the cheapest flights from Ontario to Houston George Bush Airport?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the past 3 days, the cheapest one-way tickets to Houston George Bush Airport from Ontario were found on Frontier ($39) and Delta ($114), and the lowest round-trip tickets were found on Frontier ($83) and Delta ($248).

Which airlines fly non-stop between Ontario and Houston George Bush Intcntl Airport?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Ontario to Houston George Bush Intcntl Airport.
There are 2 airlines that fly nonstop from Ontario to Houston George Bush Intcntl Airport. They are Frontier and United Airlines. The cheapest airline for this route is Frontier, with the best one-way deal found costing $99. On average, the best prices for this route can be found at Frontier.

How many flights are there between Ontario and Houston George Bush Intcntl Airport per day?

Each day, there are between 1 and 3 nonstop flights that take off from Ontario and land in Houston George Bush Intcntl Airport, with an average flight time of 3h 08m. The most common departure time is 4:00 pm and most flights take off in the afternoon. Each week, there are 14 flights. The most frequent day of departure is Wednesday, when 21% of all weekly flights depart. The fewest flights depart on a Tuesday.

Which cabin class options are there for flights between Ontario and Houston George Bush Intcntl Airport?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Ontario to Houston George Bush Airport take?

A direct flight to Houston George Bush Airport will take on average 3h 02m to travel the 1,330 miles flying distance from Ontario.

What’s the earliest departure time from Ontario to Houston George Bush Airport?

Early birds can take the earliest flight from Ontario at 6:00 am and will be landing in Houston George Bush Intcntl Airport at 11:15 am.

What’s the latest departure time from Ontario to Houston George Bush Airport?

If you prefer to fly at night, the latest flight from Ontario to Houston George Bush Intcntl Airport jets off at 5:28 pm and lands at 10:30 pm.

Good to know

Low season

January

High season

July

Cheapest flight

$39
Best time to beat the crowds but there is an average 11% increase in price.
Most popular time to fly with an average 12% increase in price.
Flight from Ontario to Houston George Bush Airport

When to book flights from Ontario to George Bush Intcntl

Are your dates flexible? Find out the best times to travel from Ontario to George Bush Intcntl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Ontario to Houston George Bush Airport flights

  • What is the cheapest flight from Ontario to Houston George Bush Intcntl Airport?

    In the last 3 days, the lowest price for a flight from Ontario to Houston George Bush Intcntl Airport was $39 for a one-way ticket and $83 for a round-trip.

  • Do I need a passport to fly between Ontario and Houston George Bush Airport?

    No

  • Which airports will I be using when flying from Ontario to Houston George Bush Airport?

    Ontario airport is called Ontario and the only airport in Houston George Bush Airport is Houston George Bush Intcntl.

  • Which airlines offer Wi-Fi service onboard planes from Ontario to Houston George Bush Airport?

    All the following airlines offer inflight Wi-Fi service on the Ontario to Houston George Bush Airport flight route: Delta, JetBlue, American Airlines, Alaska Airlines, Aeromexico, Finnair, and Iberia.

  • Which aircraft models fly most regularly from Ontario to Houston George Bush Airport?

    The Airbus A320neo is the aircraft model that flies most regularly on the Ontario to Houston George Bush Airport flight route.

  • Which airline alliances offer flights from Ontario to Houston George Bush Airport?

    Star Alliance is the only airline alliance operating flights between Ontario and Houston George Bush Airport.

  • On which days can I fly direct from Ontario to Houston George Bush Airport?

    There are nonstop flights from Ontario to Houston George Bush Airport on a daily basis.

  • Which is the best airline for flights from Ontario to Houston, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Ontario to Houston are Delta and United Airlines. With an average price for the route of $358 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $385 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Ontario to Houston George Bush Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Houston George Bush Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Houston George Bush Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Houston George Bush Airport from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Houston George Bush Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Houston George Bush Airport with an airline and back to Ontario with another airline. Booking your flights between Ontario and IAH can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Houston George Bush Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Houston George Bush Airport from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from ONT to Houston George Bush Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $128 or less one-way and $318 or less round-trip.

Prefer to fly non-stop from Ontario to Houston George Bush Airport?

Find which airlines fly direct from Ontario to George Bush Intcntl, which days they fly and book direct flights.

Nonstop departures

Ontario to Houston George Bush Intcntl

Monday

Frontier, United Airlines

Frontier, United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

Frontier, United Airlines

Frontier, United Airlines

Thursday

United Airlines

United Airlines

Friday

Frontier, United Airlines

Frontier, United Airlines

Saturday

Frontier, United Airlines

Frontier, United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Nonstop returns

Houston George Bush Intcntl to Ontario

Monday

Frontier, Lufthansa, United Airlines

Frontier, Lufthansa, +1 more

Tuesday

Lufthansa, United Airlines

Lufthansa, United Airlines

Wednesday

Frontier, Lufthansa, United Airlines

Frontier, Lufthansa, +1 more

Thursday

Lufthansa, United Airlines

Lufthansa, United Airlines

Friday

Frontier, Lufthansa, United Airlines

Frontier, Lufthansa, +1 more

Saturday

Frontier, Lufthansa, United Airlines

Frontier, Lufthansa, +1 more

Sunday

Lufthansa, United Airlines

Lufthansa, United Airlines

See more direct flights
See more direct flights

Top 5 airlines serving from Ontario to George Bush Intcntl

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Houston. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to George Bush Intcntl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10810 reviews
8.6Crew
7.4Food
8.2Boarding
8.0Entertainment
7.9Comfort
Airline reviews

Our flight was delayed in Atlanta. The staff could have gave us an explanation for the delay and how long it would be.

8.0 ExcellentAnonymous, Apr 2024ATL - SAT
Read more about Delta reviews

Our flight was delayed in Atlanta. The staff could have gave us an explanation for the delay and how long it would be.

There was a loud squeaky sound the whole time we were flying.

I didn’t not like that I could not select my seat and ended up with the worse seat.

The landing was bad and the hostess came two times and i was sleeping but when she served the person that nexts to me I woke up and she didn’t even asked me if I need any drink or snacks two times!!!!

Food service was bare-bone. Better bot to have any at all rather than hand out premade coffees and cookies to random few passengers.

Plane was late because of a mechanical malfunction and the food listed as available was not. Flight attendants seem over worked and under paid. They just done seem happy. And that can be seen in their faces.

Waited 3 hours on a plane to de-ice due to manpower issues. Waited another hour and a half once we landed because of a gate issue. Missed my connections. Created. A total of 13 hours of delay.

Great!! I haven’t had a bad experience with them.

Great, on time departure, friendly and accommodating crew, great leg room, Smith flight

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

Crew were fine, drinks and snacks were as well but we were delayed for around 2 hrs which made our entry into Mexico delayed as well with the influx of arrivals at the same time. Sort of wasted our first day of vacation. We left Pittsburgh at 630am and did not arrive in Mexico until late dinner time.

Boarding was unorganized. They expected passengers to ask people to move their assigned seat they paid for in order to sit together. The seats even in comfort are smaller than other airlines and the flight attendants appeared not to be well prepared

Due to one crew member not showing up to work, our flight was significantly delayed causing us to miss our connecting flight in Houston to Mississippi causing us to be delayed by more than 6 hours and missing our event all together. Very disappointing. All because ONE crew member called in sick. United did grant us a $15 meal voucher, which was a small but appreciated concession that I wasn’t able to use because I ordered my lunch and paid for it before applying the concession, and the staff said it was too late to use it. Ugh! We also had a TWO delay coming back from Mississippi, but that was on American Airlines and it was due to weather, so not their fault. Anyway, not at all impressed with United’s handling of our flight and the HUGE disappointment of missing our important family event for our 90 year old mother. All that money and all that stress and emotions for nothing. Having to wait the hour to bring an employee from LAX seemed like something that should not have happened. Why don’t you have a local back-up? Santa Ana is not a little airport in a rural area.

The customer service was excellent! Check-in, baggage check-in, boarding, the flight went very smooth.

It was delayed several hours which delayed our connection in Denver. Not happy.

Ok, but comfort was lacking as the seats were way to small

All good except paid for wifi that did not work

Some of these FA’s need attitude check. Snarky bitches

The plane boarded and deplaned twice before the crew timed out. Flight was 7 hours late departing. Horrible experience!

Got automatically assigned middle seats unless you fork out extra money for a seat assignment, not impressed.

Even though we left CMI late, we mostly made up the time.

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

The staff was unprofessional and didn’t communicate very well. The boarding process was very disheveled, potentially due to a power outage the previous day but there was no contingency plan to properly get passengers boarded the following day. Once boarded the aircraft stayed on the tarmac for over 45 minutes due to high winds. The communication was sporadic but an announcement was finally made an additional 30 minutes later that the flight was cancelled but we couldn’t get off the plane. Prior to deplaning one of the gate agents came on the plane and made an announcement for everyone to pickup their checked bags and take a card to rebook a new reservation because they didn’t have adequate staff. Flights were missed, passengers went to different airports and there was little to no assistance from AA.

Apart from the delay due to unforeseen circumstances. The leg from sjc to dfw was fine. It was the leg from dfw to orf that we encountered issues mainly due to the flight attendant crew not being friendly. We had two small children and we needed some assistance to warm up milk so the baby would sleep. The crew just didn’t get it and made things very difficult. One made a remark that the baby’s dirty diaper smell was a “gift” to the plane in a rude way. Normally I’d brush that off as a funny comment if the rest of the trip the attendants were helpful or understanding of the difficulty we faced. But that wasn’t the case. We were met with rudeness on the second leg. Whereas on the first leg the crew were so nice and helpful.

Flight was delayed and missed connecting flight. Did not give warning about delay until we showed up at the airport. Not good.

It was wonderful upgrading to first. Plane was so cold thou. Crew was great. Wish there was a food option in first for such a long flight. Doesnt matter the time of day. Chintzy.

Overall it was good but not great. The aircraft was an old and seats didn’t recline in business class unless you kept playing around with it.

The plane was subbed for another last minute, the gate was changed last minute. Could live with that but we boarded and there was a delay which totaled an hour in the end. There was a technical issue which meant wheels needed to remain out for ten mins after take off. My USB phone charger was broken as was the headphone jack which meant I could t enjoy the IFE and could use my phone after a few hours. Even the map function on the plane failed to work after a few hours.

Not sure about entertainment as I didn't use any, soay e there should be an NA option on this survey. Otherwise everything was just as it should be. Of course I wish planes were more comfortable and had seats that would tilt back further.

1st flight was delayed because of broken radio, missed connection but they got us on very next plane 1 hr later. Return flights were both delayed by 1 hr each. Crews were fine. Planes ok, but had to check carry ons.

Seats suck, not enough room, overcrowded planes, hectic situation all together.

On time and fast. Overall it was a pleasant experience.

3 hour delay was brutal though not Spirit Airlines fault. the control tower would not let us take off because of weather

Beware of all the extras. Nickel and dimed. Everything was extra. It turns a $90 fare in to a $400 fair quite easily.

It would have been nice to have been on the flight

Delayed several times. Flight was to arrive at midnight and it arrive at 3 am. A 3 hour delay is already bad but one that has you arriving in the wee hour is just disruptive and overall unacceptable. The complete lack of restitution is a joke in keeping with Spirit’s reputation of ranking bottom-low in the pecking order.

It wasn’t as horrible as I would have expected, however, to not provide water and change so much for bags is a ripoff to say the least.

Cancelled my flight , currently stuck in Houston and will likely miss my cruise

The flight attendants were very personable, extremely friendly, and had a very good feeling of the energy around them not to mention they’re very funny and engaging. What made up for the discomfort of the seats and the fact that the plane sat for a long time on the Turmac. Not sure if the pilot was new, but the landing was very rough sort of like I was at a magic mountain theme park ride that was built in 1959

Unfortunately not great, my flight was canceled with no notice given. I attempted to reach out to spirit airlines and have yet to receive any correspondence. I then had to book a new flight at two times the cost of the original.

Our flight was delayed an hour, then when we got to board our flight finally, we were waiting in our seats for take off for 45 minutes before it was communicated that there was a maintenance issue therefore we waited on the plane for over an hour while that was resolved. We did not get to Phoenix until almost 3 hours after we were originally supposed to. This was the first and last time I will be flying Frontier.

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The process of buying the ticket and navigating all the hidden charges that Frontier throws at you was a terrible experience. The actual airport experience and flying was fine.

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

Terrible. Seats are bad and the baggage policy is inconsistent

Better than I expected but I did pay for a seat and carry on bags ahead of time.

I hope to avoid flying with them in the future. First flight got cancelled then got stuck with a 13 hour layover in Denver. The process was long and frustrating to many people.

Flight was delayed on the runway for 40 minutes the crew did not even offer even water to passengers to compensate for the flight delayed. The flight was delayed due to aircraft mechanical issues. Worst customer service ever

Everything was good, 20/30 minutes late waiting on a crew member. It’s hard to keep employees. Or serious employees I know. I remember one flight from Houston of Frontiers was almost 18 hours late. And another 4 hours late very poor. But I would rather be late and safe than the on the news. Thank you.

Book cheap flights from Ontario to Houston

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Ontario to Houston found on KAYAK in the last 72 hours.
6/5Wed
nonstopFrontier
3h 02mONT-IAH
$39
6/12Wed
nonstopFrontier
3h 02mONT-IAH
$44
6/8Sat
1 stopDelta
8h 10mONT-IAH
$114
5/30Thu
1 stopAmerican Airlines
8h 51mONT-IAH
$123
5/28Tue
1 stopAmerican Airlines
6h 56mONT-IAH
$124
5/28Tue
nonstopUnited Airlines
3h 15mONT-IAH
$145
7/12Fri
nonstopUnited Airlines
3h 15mONT-IAH
$165
5/20Mon
1 stopDelta
8h 19mONT-IAH
$196
5/30Thu
2 stopsAlaska Airlines
21h 05mONT-IAH
$243
9/4Wed
2 stopsAlaska Airlines
10h 29mONT-IAH
$252

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Last minute flights from Ontario to George Bush Intcntl

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Ontario to Houston that are departing in the next 10 days.
5/12Sun
multi-stopFrontier
9h 33mONT-IAH
5/21Tue
multi-stopFrontier
28h 27mIAH-ONT
$128
5/11Sat
multi-stopFrontier
18h 13mONT-IAH
5/21Tue
multi-stopFrontier
28h 27mIAH-ONT
$147
5/8Wed
multi-stopAmerican Airlines
6h 25mONT-IAH
5/22Wed
multi-stopAmerican Airlines
5h 10mIAH-ONT
$373
5/12Sun
multi-stopDelta
6h 51mONT-IAH
5/19Sun
multi-stopDelta
6h 28mIAH-ONT
$438
5/10Fri
multi-stopAmerican Airlines
6h 25mONT-IAH
5/19Sun
multi-stopAmerican Airlines
6h 40mIAH-ONT
$443
5/11Sat
multi-stopDelta
6h 23mONT-IAH
5/13Mon
multi-stopDelta
6h 48mIAH-ONT
$573
5/9Thu
multi-stopUnited Airlines
8h 46mONT-IAH
5/12Sun
multi-stopUnited Airlines
7h 20mIAH-ONT
$627
5/9Thu
multi-stop
6h 55mONT-IAH
5/13Mon
multi-stop
13h 38mIAH-ONT
$661
5/8Wed
multi-stopUnited Airlines
23h 23mONT-IAH
5/12Sun
multi-stopUnited Airlines
7h 20mIAH-ONT
$722
5/8Wed
multi-stop
16h 02mONT-IAH
5/13Mon
multi-stop
13h 01mIAH-ONT
$1,243

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Ontario - Houston George Bush Airport Flights

Departure:

Ontario (undefined)United States

Destination:

Houston George Bush Airport (IAH)United States

Return flight deals:

Houston George Bush Airport - Ontario

Cabin classes:

$993
$986
$782
$99