In terms of precipitation, rainfall in Northern Ireland ranges from 2.0 - 3.5 inches per month. October is typically the wettest month, when rainfall can reach 3.5 in. April is typically the driest time to visit Northern Ireland when rainfall is around 2.0 in.

If weather is an important factor for your trip to Northern Ireland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

How can I find direct flights from George Bush Intcntl to Northern Ireland?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from George Bush Intcntl to Northern Ireland.

Can I find deals for business class flights from George Bush Intcntl to Northern Ireland?

Yes. Cheapflights offers flight deals from George Bush Intcntl to Northern Ireland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$639+ Flights from Houston George Bush Intcntl Airport to Northern Ireland

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Cheap flight deals from George Bush Intcntl to Northern Ireland

Cheapest flights from George Bush Intcntl to Northern Ireland
Explore the most affordable flight options available from George Bush Intcntl to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 14, 2025.

Mon 12/299:45 pmIAH - BHD

1 stop12h 20mAmerican Airlines

Tue 1/138:45 amBHD - IAH

2 stops17h 30mAmerican Airlines

Deal found 12/13

$661

Mon 12/293:50 pmIAH - BHD

2 stops14h 25mBritish Airways

Tue 1/1310:00 amBHD - IAH

2 stops18h 24mBritish Airways

Deal found 12/13

$1,118

Mon 12/294:05 pmIAH - BHD

2 stops18h 45mMultiple Airlines

Tue 1/134:55 pmBHD - IAH

3 stops27h 10mMultiple Airlines

Deal found 12/13

$2,011

Best flights from George Bush Intcntl to Northern Ireland
Discover carefully curated flight deals from George Bush Intcntl to Northern Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 14, 2025.

Mon 3/2310:45 pmIAH - BHD

1 stop16h 30mBritish Airways

Tue 3/316:35 amBHD - IAH

1 stop13h 10mBritish Airways

Deal found 12/14

$639

Mon 12/299:45 pmIAH - BHD

1 stop12h 20mAmerican Airlines

Tue 1/138:45 amBHD - IAH

2 stops17h 30mAmerican Airlines

Deal found 12/13

$661

Thu 1/299:50 pmIAH - BHD

1 stop15h 00mBritish Airways

Mon 2/25:45 pmBHD - IAH

1 stop26h 20mBritish Airways

Deal found 12/11

$712

Thu 1/223:50 pmIAH - BHD

1 stop16h 10mBritish Airways

Mon 1/262:40 pmBHD - IAH

1 stop29h 25mBritish Airways

Deal found 12/11

$712

Last-minute flights from George Bush Intcntl to Northern Ireland
Discover last-minute flight deals from George Bush Intcntl to Northern Ireland. Data last updated December 14, 2025 and is based on user searches.

Mon 12/299:45 pmIAH - BHD

1 stop12h 20mAmerican Airlines

Tue 1/138:45 amBHD - IAH

2 stops17h 30mAmerican Airlines

Deal found 12/13

$661

Mon 12/293:50 pmIAH - BHD

2 stops14h 25mBritish Airways

Tue 1/1310:00 amBHD - IAH

2 stops18h 24mBritish Airways

Deal found 12/13

$1,118

Mon 12/294:05 pmIAH - BHD

2 stops18h 45mMultiple Airlines

Tue 1/134:55 pmBHD - IAH

3 stops27h 10mMultiple Airlines

Deal found 12/13

$2,011

Thu 1/223:50 pmIAH - BHD

1 stop16h 10mBritish Airways

Mon 1/262:40 pmBHD - IAH

1 stop29h 25mBritish Airways

Deal found 12/11

$712

Find flight deals from George Bush Intcntl to Northern Ireland

Round-trip from	$661 (American Airlines)

From Houston George Bush Intcntl to Northern Ireland

Search Deals

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Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HoustonBelfast

IAH - BHD

IAHBHD

Houston George Bush Intcntl

Mon 3/23

10:45 pm-8:15 pm

1 stop16h 30m

Belfast City

Tue 3/31

6:35 am-1:45 pm

1 stop13h 10m

$639

HoustonBelfast

IAH - BHD

IAHBHD

Houston George Bush Intcntl

Mon 12/29

9:45 pm-4:05 pm

1 stop12h 20m

Belfast City

Tue 1/13

8:45 am-8:15 pm

2 stops17h 30m

$661

HoustonBelfast

IAH - BHD

IAHBHD

Houston George Bush Intcntl

Thu 1/29

9:50 pm-6:50 pm

1 stop15h 00m

Belfast City

Mon 2/2

5:45 pm-2:05 pm

1 stop26h 20m

$712

HoustonBelfast

IAH - BHD

IAHBHD

Houston George Bush Intcntl

Thu 1/22

3:50 pm-2:00 pm

1 stop16h 10m

Belfast City

Mon 1/26

2:40 pm-2:05 pm

1 stop29h 25m

$712

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Best time to book a flight from George Bush Intcntl to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from George Bush Intcntl with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Houston George Bush Intcntl Airport to Northern Ireland

What is the cheapest time of day to fly from IAH to NIR?

One of the essential ways to save on airfare from Houston George Bush Intcntl Airport to Northern Ireland is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 44% on airfare.

Reviews of airlines servicing Northern Ireland

Read reviews from past customers who have flown British Airways from Houston George Bush Intcntl Airport to Northern Ireland. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

British Airways

6.7

Okay

7,574 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.

British Airways

6.7

Okay

7,574 reviews

British Airways

6.7

Okay

7,574 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.

Related info for your journey

How long is the flight from Houston George Bush Intcntl Airport to Northern Ireland?
British Airways and American Airlines can get you from Houston George Bush Intcntl Airport to Northern Ireland in just under 12h 20m. Your travel time can differ by up to 4h 10m. Houston George Bush Intcntl Airport and Northern Ireland are separated by a distance of 4534 mi. This flight may include one or multiple stops.
Can I find deals for flights from George Bush Intcntl to Northern Ireland that include hotel bookings?
Yes. In addition to deals on George Bush Intcntl to Northern Ireland flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from George Bush Intcntl to Northern Ireland?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from George Bush Intcntl to Northern Ireland.
Can I find deals for business class flights from George Bush Intcntl to Northern Ireland?
Yes. Cheapflights offers flight deals from George Bush Intcntl to Northern Ireland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top airline flying from George Bush Intcntl to Northern Ireland

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest$691	Average$849	FlexibilityNo cancel fee	On-time70%

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$639+ Cheap flights from George Bush Intcntl (IAH) to Northern Ireland

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/23. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from George Bush Intcntl to Northern Ireland with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from George Bush Intcntl to Northern Ireland

Cheapest flights from George Bush Intcntl to Northern IrelandExplore the most affordable flight options available from George Bush Intcntl to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 14, 2025.

Explore the most affordable flight options available from George Bush Intcntl to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 14, 2025.

Find flight deals from George Bush Intcntl to Northern Ireland

Keep the following information in mind while searching for George Bush Intcntl to Northern Ireland flight deals. Data was last updated December 14, 2025.

Round-trip from

Cheapflights Fare Finder

Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Northern Ireland that are best for you.

Best time to book a flight from George Bush Intcntl to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from George Bush Intcntl with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Houston George Bush Intcntl Airport to Northern Ireland

What is the cheapest time of day to fly from IAH to NIR?

Find hourly flight availability from George Bush Intcntl to Northern Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 14, 2025.

Reviews of airlines servicing Northern Ireland

Read reviews from past customers who have flown British Airways from Houston George Bush Intcntl Airport to Northern Ireland. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from George Bush Intcntl to Northern Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Houston George Bush Intcntl Airport to Northern Ireland?

Can I find deals for flights from George Bush Intcntl to Northern Ireland that include hotel bookings?

How can I find direct flights from George Bush Intcntl to Northern Ireland?

Can I find deals for business class flights from George Bush Intcntl to Northern Ireland?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for George Bush Intcntl to Northern Ireland

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

Top airline flying from George Bush Intcntl to Northern Ireland

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Cheapest flights from George Bush Intcntl to Northern Ireland
Explore the most affordable flight options available from George Bush Intcntl to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 14, 2025.