$720 Cheap Flights from Knock (NOC) to Houston (IAH)

View $720 flight on Mon, Nov 3, 2025Opens in a new window

Popular airlines from Knock (NOC-Ireland West) to George Bush Intercontinental Airport (IAH)

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Cheap Flights from Knock to Houston (NOC-IAH)

Prices were available within the past 7 days and start at $720 for one-way flights and $1,101 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Thu, Oct 16 - Sat, Oct 25
NOC
Knock
IAH
Houston
$1,101 Roundtrip, found 3 days ago
$1,101
Roundtrip
found 3 days ago
Select Aer Lingus flight, departing Thu, Oct 16 from Knock to Houston, returning Sat, Oct 25, priced at $1,101 found 3 days ago
Aer Lingus
Thu, Oct 16 - Sat, Oct 25
NOC
Knock
IAH
Houston
$1,107 Roundtrip, found 3 days ago
$1,107
Roundtrip
found 3 days ago
Select Aer Lingus flight, departing Thu, Oct 16 from Knock to Houston, returning Sat, Oct 25, priced at $1,107 found 3 days ago
Aer Lingus
Thu, Oct 16 - Sat, Oct 25
NOC
Knock
IAH
Houston
$1,119 Roundtrip, found 3 days ago
$1,119
Roundtrip
found 3 days ago
Select Aer Lingus flight, departing Thu, Oct 16 from Knock to Houston, returning Sat, Oct 25, priced at $1,119 found 3 days ago
Aer Lingus
Thu, Oct 16 - Sat, Oct 25
NOC
Knock
IAH
Houston
$1,125 Roundtrip, found 3 days ago
$1,125
Roundtrip
found 3 days ago
Select Aer Lingus flight, departing Thu, Oct 16 from Knock to Houston, returning Sat, Oct 25, priced at $1,125 found 3 days ago
Aer Lingus
Thu, Oct 16 - Sat, Oct 25
NOC
Knock
IAH
Houston
$1,170 Roundtrip, found 3 days ago
$1,170
Roundtrip
found 3 days ago
Select Aer Lingus flight, departing Thu, Oct 16 from Knock to Houston, returning Sat, Oct 25, priced at $1,170 found 3 days ago
Aer Lingus
Thu, Oct 16 - Sat, Oct 25
NOC
Knock
IAH
Houston
$1,172 Roundtrip, found 3 days ago
$1,172
Roundtrip
found 3 days ago
Select Aer Lingus flight, departing Thu, Oct 16 from Knock to Houston, returning Sat, Oct 25, priced at $1,172 found 3 days ago
British Airways
Thu, Oct 16 - Sat, Oct 25
NOC
Knock
IAH
Houston
$1,173 Roundtrip, found 3 days ago
$1,173
Roundtrip
found 3 days ago
Select British Airways flight, departing Thu, Oct 16 from Knock to Houston, returning Sat, Oct 25, priced at $1,173 found 3 days ago
Aer Lingus
Thu, Oct 16 - Sat, Oct 25
NOC
Knock
IAH
Houston
$1,177 Roundtrip, found 3 days ago
$1,177
Roundtrip
found 3 days ago
Select Aer Lingus flight, departing Thu, Oct 16 from Knock to Houston, returning Sat, Oct 25, priced at $1,177 found 3 days ago
British Airways
Thu, Oct 16 - Sat, Oct 25
NOC
Knock
IAH
Houston
$1,179 Roundtrip, found 3 days ago
$1,179
Roundtrip
found 3 days ago
Select British Airways flight, departing Thu, Oct 16 from Knock to Houston, returning Sat, Oct 25, priced at $1,179 found 3 days ago
Aer Lingus
Thu, Oct 16 - Sat, Oct 25
NOC
Knock
IAH
Houston
$1,181 Roundtrip, found 3 days ago
$1,181
Roundtrip
found 3 days ago
Select Aer Lingus flight, departing Thu, Oct 16 from Knock to Houston, returning Sat, Oct 25, priced at $1,181 found 3 days ago

Frequently asked questions

How much does a flight from Ireland West Airport (NOC) to George Bush Intercontinental Airport (IAH) cost?
Lock in a cheap one-way flight from $720 or cheap return flight from $1,101 from Ireland West Airport (NOC) to George Bush Intercontinental Airport (IAH) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Ireland West Airport (NOC) to George Bush Intercontinental Airport (IAH)?
October is the most affordable month to fly from NOC to IAH. Traveling during quieter months is often the key to landing a great deal.
What is the cheapest airline that flies from Ireland West Airport (NOC) to George Bush Intercontinental Airport (IAH)?
To find the cheapest airline that'll fly you from NOC to IAH, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Ireland West Airport (NOC) to George Bush Intercontinental Airport (IAH)?
You'll have to catch a flight with a layover when traveling from Ireland West Airport (NOC) to George Bush Intercontinental Airport (IAH). There are no daily direct flights on this route. However, just filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from NOC to IAH?
Usually you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can change based on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Ireland West Airport (NOC) to George Bush Intercontinental Airport (IAH)?
To avoid possible delays on the Ireland West Airport (NOC) to George Bush Intercontinental Airport (IAH) route, aim to travel before 3 PM. Later flights have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Ireland West Airport (NOC) to George Bush Intercontinental Airport (IAH) last-minute?
Last-minute fares from NOC to IAH are generally more expensive. For the best rates, start searching for flights early. That said, if you're flexible with your travel plans, it's possible to find a cheap ticket right before your journey.
Is it cheaper to book a NOC to IAH flight and hotel package?
You'll generally save money by securing a NOC to IAH flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. Once you've selected your ideal accommodations and flights, you can add extras such as car rentals, activities and tours.
Can I cancel or change the date of my flight from Ireland West Airport (NOC) to George Bush Intercontinental Airport (IAH)?
If you reserved your NOC to IAH flight in the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

Travel information

Travel information

Origin airport
Ireland West
Destination airport
George Bush Intercontinental
Roundtrip price
$1,100
Distance
4437 mi

Book with confidence

Book with confidence

Knock to Houston Flights

The cheapest times to fly from Knock to Houston

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Knock to Houston are during the month of October. You can find some of the cheapest flights from Knock to Houston with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Knock to Houston

Sunday is one of the best days to book for cheap flights from Knock to Houston: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Knock to Houston

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Knock to Houston in 2025. You can also book with separate airlines for your outbound and return journeys, from $720 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Knock to Houston flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Knock to Houston airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Knock to Houston Flights

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*Available to One Key members.