ONT - IAH

$38 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 5/30. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Houston George Bush Intcntl 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
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Flights Deals

Cheap Flights from Ontario to George Bush Intcntl

 
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.

Recent round-trip flight deals from Ontario to George Bush Intcntl

KAYAK's recommended round-trip deals from the most popular airlines that fly from Ontario to George Bush Intcntl.
Discover the best prices for you by selecting your travel dates on KAYAK.
Frontier Logo
2:06 pm - 7:37 pmONT-IAH
3h 31mnonstop
Frontier Logo
5:12 pm - 6:42 pmIAH-ONT
3h 30mnonstop
$103Frontier
Find Deal
Mon, May 19 - Wed, May 28
Frontier Logo
2:06 pm - 7:37 pmONT-IAH
3h 31mnonstop
Frontier Logo
5:12 pm - 6:42 pmIAH-ONT
3h 30mnonstop
$105Frontier
Find Deal
Mon, May 19 - Wed, May 28
 Logo
12:40 pm - 6:11 pmONT-IAH
3h 31mnonstop
 Logo
5:54 pm - 11:57 pmIAH-ONT
8h 03m1 stop
Fri, May 30 - Wed, Jun 4
 Logo
2:06 pm - 7:37 pmONT-IAH
3h 31mnonstop
 Logo
5:54 pm - 11:57 pmIAH-ONT
8h 03m1 stop
Mon, May 19 - Wed, May 28
American Airlines Logo
11:59 pm - 8:10 amONT-IAH
6h 11m1 stop
American Airlines Logo
5:00 am - 9:58 amIAH-ONT
6h 58m1 stop
$247American Airlines
Find Deal
Fri, May 23 - Sun, May 25
American Airlines Logo
2:44 pm - 10:44 pmONT-IAH
6h 00m1 stop
American Airlines Logo
6:00 am - 9:58 amIAH-ONT
5h 58m1 stop
$257American Airlines
Find Deal
Wed, May 21 - Sun, May 25
United Airlines Logo
6:00 am - 11:15 amONT-IAH
3h 15mnonstop
United Airlines Logo
8:17 pm - 9:37 pmIAH-ONT
3h 20mnonstop
$269United Airlines
Find Deal
Mon, Aug 4 - Tue, Aug 5
Delta Logo
7:05 am - 4:11 pmONT-IAH
7h 06m1 stop
Delta Logo
2:15 pm - 10:46 pmIAH-ONT
10h 31m2 stops
$282Delta
Find Deal
Sat, Jun 7 - Sat, Jun 14
Delta Logo
4:57 pm - 12:51 amONT-IAH
5h 54m1 stop
Delta Logo
11:27 am - 4:17 pmIAH-ONT
6h 50m1 stop
$289Delta
Find Deal
Tue, May 27 - Wed, Jun 4
United Airlines Logo
6:00 am - 11:15 amONT-IAH
3h 15mnonstop
United Airlines Logo
7:50 pm - 9:10 pmIAH-ONT
3h 20mnonstop
$317United Airlines
Find Deal
Thu, Jun 5 - Thu, Jun 12
Expert advice

Expert advice for your flight from Ontario to George Bush Intcntl

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Frontier

Frontier's Economy Bundle includes a carry-on and seat choice, ideal for budget travelers.


Opt for Premium Bundle for priority boarding and extra legroom, just $20 more than Economy.

Read more about Frontierby Stefanie Waldek
United Airlines

United's Economy Plus offers up to six inches more legroom than standard economy seats.


Purchase Priority Boarding to ensure overhead bin space, placing you in Zone 2.

Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Frontier and United Airlines

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Useful Info

KAYAK's insights & trends for Ontario to George Bush Intcntl flights

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 round-trip 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 Thursday, with Monday 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 round-trip 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 $165 (return) on average. On the other hand, the most expensive months are February and December, where the average cost of round-trip tickets is $394 and $322 respectively.

Can I save money by flying with a layover from Ontario to Houston George Bush Intcntl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $423, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip 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 week.

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 24 weeks before departure.

Good to know

Low seasonFebruary
High seasonOctober
Cheapest flight$38
Best time to beat the crowds but there is an average 64% increase in price.
Most popular time to fly and prices are also 19% lower on average.
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 $38 for a one-way ticket and $103 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, Alaska Airlines, JetBlue, Hawaiian Airlines, American Airlines, and Aeromexico.

  • 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 $427 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 $406 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.

KAYAK’s top tips for finding a cheap flight from Ontario to Houston George Bush Intcntl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $109 or less one-way and $199 or less round-trip.

Prefer to fly direct from Ontario to Houston George Bush Airport?

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

Direct 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

United Airlines

United Airlines

Sunday

Frontier, United Airlines

Frontier, United Airlines

See more direct flights

Direct 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

Lufthansa, United Airlines

Lufthansa, United Airlines

Sunday

Frontier, Lufthansa, United Airlines

Frontier, Lufthansa, +1 more

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 7934 reviews
8.2Boarding
7.9Entertainment
7.9Comfort
7.3Food
8.5Crew
Airline reviews

Delta flight was on time, seats were comfortable, and crew was nice.

8.0 ExcellentAnonymous, Apr 2025LAX - DEN
Read more Delta reviews

Delta flight was on time, seats were comfortable, and crew was nice.

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

It was terrible, if they ran flights on time it would make a big difference.

Delta seems to be improving in many areas, except they are super bad with the food available. Bring back normal food service on long flights.

I actually received a notification from kayak on email but not one by text from Delta when my departure gait changed and I almost missed my flight

New boarding doesn't make sense. Filling front first is slow.

Delta flight was great from the check in all the way to arrival. However, I had a very bad experience. I requested a wheelchair and the wheelchair employee that went to pick me up from the plane in Boston to bring me to the baggage claims told me I have to pay him. I was under the impression that it was a free service and I usually give tips but the person forced me to pay and since I said no because I was upset with his demand when my daughter walked in to pick me up he demanded payment from my daughter who paid him thinking maybe now it is a charged service.

Horrible. Grateful to be alive but spent 13 hours at airport only to return back to my familys house and flight changed to next day. They tried to fix a part on plane, had no back up plane and after 10 hours , reattempted the flight and it STILL wasn't fixed. We got a meal voucher and rescheduled flight but there should be some other compensation for the 15 hours spent in airport

In thirty years of traveling, mostly with Delta, this was the worst day ever.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

My suitcase was destroyed. The top part where the handle is is completed broken. And unusable now.

Since when do I have to pay for my checked bag? I have a United Explorer mileage plus silver card and I was charged for my checked bags. This also is an international flight. So I would like an explanation to be clear before I choose an airline please?

Michael, our FA was very attentive, even finding me a chocolate brownie from economy class when the dessert selections were all dairy based. ( intolerant, not allergic so don’t usually need to order dairy free)

I had a bad experience with the security at IAH and felt like a sardine on all 4 legs of my journey.

I don’t understand the purpose of the orange “priority” tag on my bag. This tagged, my bag is last or near to the last bag to come down the carousel at IAH.

Oh my gosh, I loved my experience with United! they made me want to travel more often.

The planes are so dirty! Food crumbs and finger print smudges, Dust over the vents and carpet stains. It’s disgusting.

The bag drop personal were not helpful. There was no food on the flight. Boeing aircraft, lousy as always. Everything else was fine.

Several delays. Next flight was worse. Did not arrive home until 2am PT

The flight to Tokyo AA61 took off about two hours late, but then had to turn back. By that time the crew had to be replaced. Then they kept promising to take off in an hour, then in 3, then switch to the next day.

Any sort of gluten free snack option would be nice

I had a carry on and a personal bag. I put my personal item under my seat and on way to the seat I put my bag up. I usually close my eyes and rest as I was on call for last 36 hours. I heard very loud announcements that someone needs to identify their bag. Pretty sure it was not mine until the hostess pointed out my jacket details attached to the bag. I asked why she got my bag out. I got berated and did not want to create a scene. But this person needs to be talked to.

Between Las Vegas and Dallas was okay But, once in the Dallas airport, notice, I have disability and ask for a wheelchair, they leave in a middle of nowhere, the personal in charge try to push me on a cart where I couldn't sit because was to high. Then they don't care about me, they bulling, till I start to yelling and crying, ask to everyone around, who can help me. The man in charge make a despective movements and said you are to loosing the fly. The last name in his batch started with an H, I did not have the full name. A nightmare. After all, a woman in charge was walking very slowly and asking me for a tip cause she was helping me to reach the fly. For years, AA has been the preferred airline. The personal in charge of the disabled people are discriminate me. Thank you Kayak.

Flight was late and missed connecting flight. They could have better accommodated, but instead did an overnight and had to arrive the next afternoon.

Awkward carry on process. Forced to check all carry on. No overhead space of worthiness. Left delayed, but made up the time. Crew was amicable.

April was the flight attendant in first class and was the most pleasant, cordial and efficient person I have seen on a flight in years. Good example of the type of people AA should hire to increase customer satisfacdtion.

Two flight changes before the scheduled flight. On the day of the flight, the flight was delayed, which caused the connecting flight to be missed. Then, I was directed to another airport (CUN) and traveled to Tulum. American gave a $12 voucher for lunch. The least expensive item on the menu at a Mexican restaurant was $9.99. Driving to Tulum was a bad auto crash, and traffic was delayed two-plus hours. The bottom line is that we should have been at the hotel at noon, but it ended up at 11:30 PM.

The boarding experience was good; $20 for wifi per flight is uncompetitive compared to Delta, Southwest, and others, and puts American lower on my list given similar pricing.

Flight was delayed a bit, but that was expected (and updated), so really not bad at all for the price. Could’ve used one less email asking me to upgrade my seat; otherwise no significant complaints

Easy boarding. Met expectations for a 2-3 hour flight. Early arrival at DFW caused a 39 minute delay on the tarmac in getting to our gate. 😏 overall, good flight.

My experience with Spirit went pretty much as expected. It's a no frills airline, and you get what you pay for. I don't require much, so I was grateful to have an inexpensive way to travel. It is sad to me that the gate agents and flight crew don't smile much or seem very friendly or helpful. They are competent and efficient, and that's really all I need.

It was fast but uncomfortable seats. Had to pay a bit extra not sure why? Maybe in selection of all my 4 tix together ? Just knew I had a balance before getting boarding pass online when departing from satx ? And flight was delayed..

Last minute 2-3 hr delay in flight schedule; no explanation Unexpected extra $52 charge What's the benefit of choosing a cheap airline if you trick people last minute and force them to pay extra last minute? Did not appreciate being cornered.

Most uncomfortable seating I have ever experienced. And they do not provide any beverage unless purchased. Water was 4.59 a bottle. Same for a soda. A cup of water should be free. I will never fly Spirit again.

Seats are uncomfortable and too close together. Also, you missed my connection in Vegas on the way back and I ended up sleeping in the airport, flying back to Burbank instead of LAX and I got home 12 hours late.

They are very particular about size of the bag. Mine is small bag and has wheels. Bag wheel edges are bit outside of the measurements bucket. They charged $99 as carryon bagage

Non-professional acting crew, Very uncomfortable seats…!! Very bad pricing with all the add-ons for seat choice, luggage fees, etc….soon you’ll charge extra for oxygen. The ticket price means Nothing because in the end, the actual amount i paid, i could have and will in the future continue to fly on a real airline…

Your employees need to learn how to talk to people as creations of Yah. We are not their children nor are we lower than them.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

Frontier had yet another flight cancellation. Have never made a complete round trip with this airline without at least one leg getting cancelled. Miserable flights - dirty, uncomfortable planes that apparently always have issues since I've had multiple delays and cancellations with them.

Flight was delayed 3 times, would have been nice to have received text message instead of email notifications. Frontier app wasn’t even updated accordingly, no gate number disclosed. No agent at front desk of gate to inform of delay. Very confused and left if the dark

They changed the timing , first delayed by 4 hours then went back to 40 mins late, we had to run back to airport to not miss our flight. This is ridiculous

Early arrival. Great landing. Pilot updates. Too cold in plane.

No frills for sure. No gate announcements about flight delay, not even water to drink on the flight.

An absolutely fraudulent experience. Extremely unprofessional. Terrible in all ways possible. Rude staff, flight attendants, and deceptive "policies."

The worst service , the agents from the counter are really bad . Poor customer service . They didnt help me to get in the flight . I was on line when they close the flight without telling and I couldn’t board the plane . I will like to get my money back ey back because it was their fault. Really bad management , bad manners, bad additud

My experience with the phoenix airport was terrible, the personnel lay the ticket counter charged me for a carry on that fit in the carry on size box, and the two women I spoke with were terribly rude and not willing to help.,,, there was one lady “candy” on the flight crew that was amazing and is the only reason I stayed on the flight at all, because the other stewards helping people to get seated on the plane were terrible

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