In terms of precipitation, rainfall in Northern Ireland ranges from 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Northern Ireland when rainfall is around 50.0 mm.

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 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

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

When flying from Houston George Bush Intcntl Airport to Northern Ireland, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 holiday 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.

£416+ Cheap Flights from Houston George Bush Intcntl Airport to Northern Ireland

Cheap flight deals 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 30 September 2026.

Fri 30/1019:02 -

2 stops17h 23m

Wed 4/1106:35 -

1 stop13h 30m

Deal found 28/9£763

Fri 30/1016:50 -

1 stop13h 05m

Wed 4/1106:35 -

1 stop13h 30m

Deal found 28/9£787

Thu 22/1021:10 -

1 stop15h 35m

Thu 29/1011:05 -

1 stop14h 50m

Deal found 28/9£862

Mon 16/1121:40 -

1 stop12h 25m

Wed 18/1117:35 -

1 stop32h 20m

Deal found 28/9£1,039

Find flight deals from George Bush Intcntl to Northern Ireland

Round-trip from	£763
One-way from	£416

American Airlines
30/10-4/11
3 total stops
30h 53m total
Houston to Northern Ireland

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British Airways
2/12-31/12
1 total stop
12h 15m total
Houston to Northern Ireland

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HoustonBelfast

IAH Houston George Bush Intcntl - BHD Belfast City

IAHBHD

Houston George Bush Intcntl

Wed 2/12

15:50-10:05

1 stop12h 15m

Belfast City

Wed 31/12

00:00-17:00

Nonstop0h 00m

£416

HoustonBelfast

IAH Houston George Bush Intcntl - BHD Belfast City

IAHBHD

Houston George Bush Intcntl

Wed 2/12

11:55-14:30

3 stops20h 35m

Belfast City

Wed 31/12

00:00-17:00

Nonstop0h 00m

£631

HoustonBelfast

IAH Houston George Bush Intcntl - BHD Belfast City

IAHBHD

Houston George Bush Intcntl

Thu 22/10

12:26-10:10

2 stops15h 44m

Belfast City

Thu 29/10

20:00-15:05

1 stop24h 05m

£877

HoustonBelfast

IAH Houston George Bush Intcntl - BHD Belfast City

IAHBHD

Houston George Bush Intcntl

Mon 16/11

21:40-16:05

1 stop12h 25m

Belfast City

Wed 18/11

17:35-19:55

1 stop32h 20m

£1,039

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

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IAH-BHD

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IAH-GBNIR

IAH-BHD

No data available for this route at this time. Please check back soon.

Related info for your journey

How long is the flight from Houston George Bush Intcntl Airport to Northern Ireland?
Delta and British Airways can get you from Houston George Bush Intcntl Airport to Northern Ireland in just under 15h 44m. Your travel time can differ by up to 3h 46m. The distance from Houston George Bush Intcntl Airport to Northern Ireland is about 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 holiday 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.

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Cheap flights from Houston George Bush Intcntl Airport to Northern Ireland from £416

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/12. Fares are subject to change and may not be available on all flights or dates of travel.

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 30 September 2026.

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 30 September 2026.

Best flights from George Bush Intcntl to Northern IrelandDiscover carefully curated flight deals from George Bush Intcntl to Northern Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 September 2026.

Discover carefully curated flight deals from George Bush Intcntl to Northern Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 September 2026.

Last-minute flights from George Bush Intcntl to Northern IrelandDiscover last-minute flight deals from George Bush Intcntl to Northern Ireland. Data last updated 30 September 2026 and is based on user searches.

Discover last-minute flight deals from George Bush Intcntl to Northern Ireland. Data last updated 30 September 2026 and is based on user searches.

One-way flights from George Bush Intcntl to Northern IrelandSearch for one-way flight options from George Bush Intcntl to Northern Ireland. Find affordable one-way fares based on user searches. Data last updated 30 September 2026.

Search for one-way flight options from George Bush Intcntl to Northern Ireland. Find affordable one-way fares based on user searches. Data last updated 30 September 2026.

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Related info for your journey

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?

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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 30 September 2026.

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 stopovers in mind to ensure you get the best travel experience. Data last updated 30 September 2026.

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 30 September 2026 and is based on user searches.

One-way flights from George Bush Intcntl to Northern Ireland
Search for one-way flight options from George Bush Intcntl to Northern Ireland. Find affordable one-way fares based on user searches. Data last updated 30 September 2026.