$337 Cheap Flights from Houston (IAH) to Belfast (BHD)

View $337 flight on Sun, Aug 2, 2026Opens in a new window

Popular airlines from George Bush Intercontinental Airport (IAH) to Belfast (BHD-George Best Belfast City)

Cheap Flights from Houston to Belfast (IAH-BHD)

Prices were available within the past 7 days and start at $337 for one-way flights and $905 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Sep 30 - Thu, Oct 15
IAH
Houston
BHD
Belfast
$905 Roundtrip, just found
$905
Roundtrip
just found
Select American Airlines flight, departing Wed, Sep 30 from Houston to Belfast, returning Thu, Oct 15, priced at $905 just found
British Airways
Wed, Sep 30 - Thu, Oct 15
IAH
Houston
BHD
Belfast
$907 Roundtrip, just found
$907
Roundtrip
just found
Select British Airways flight, departing Wed, Sep 30 from Houston to Belfast, returning Thu, Oct 15, priced at $907 just found
British Airways
Mon, Aug 17 - Thu, Aug 27
IAH
Houston
BHD
Belfast
$908 Roundtrip, found 5 days ago
$908
Roundtrip
found 5 days ago
Select British Airways flight, departing Mon, Aug 17 from Houston to Belfast, returning Thu, Aug 27, priced at $908 found 5 days ago
American Airlines
Wed, Sep 30 - Thu, Oct 15
IAH
Houston
BHD
Belfast
$910 Roundtrip, just found
$910
Roundtrip
just found
Select American Airlines flight, departing Wed, Sep 30 from Houston to Belfast, returning Thu, Oct 15, priced at $910 just found
British Airways
Wed, Nov 11 - Fri, Nov 20
IAH
Houston
BHD
Belfast
$912 Roundtrip, found 1 day ago
$912
Roundtrip
found 1 day ago
Select British Airways flight, departing Wed, Nov 11 from Houston to Belfast, returning Fri, Nov 20, priced at $912 found 1 day ago
American Airlines
Wed, Sep 30 - Thu, Oct 15
IAH
Houston
BHD
Belfast
$915 Roundtrip, just found
$915
Roundtrip
just found
Select American Airlines flight, departing Wed, Sep 30 from Houston to Belfast, returning Thu, Oct 15, priced at $915 just found
British Airways
Wed, Sep 30 - Thu, Oct 15
IAH
Houston
BHD
Belfast
$917 Roundtrip, just found
$917
Roundtrip
just found
Select British Airways flight, departing Wed, Sep 30 from Houston to Belfast, returning Thu, Oct 15, priced at $917 just found
Delta
Wed, Nov 11 - Fri, Nov 20
IAH
Houston
BHD
Belfast
$927 Roundtrip, found 1 day ago
$927
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Nov 11 from Houston to Belfast, returning Fri, Nov 20, priced at $927 found 1 day ago
Virgin Atlantic
Mon, Sep 14 - Thu, Sep 24
IAH
Houston
BHD
Belfast
$936 Roundtrip, found 3 hours ago
$936
Roundtrip
found 3 hours ago
Select Virgin Atlantic flight, departing Mon, Sep 14 from Houston to Belfast, returning Thu, Sep 24, priced at $936 found 3 hours ago
KLM
Mon, Sep 14 - Thu, Sep 24
IAH
Houston
BHD
Belfast
$983 Roundtrip, found 3 hours ago
$983
Roundtrip
found 3 hours ago
Select KLM flight, departing Mon, Sep 14 from Houston to Belfast, returning Thu, Sep 24, priced at $983 found 3 hours ago

Frequently asked questions

How much does a flight from Houston, TX (IAH-George Bush Intercontinental) to Belfast (BHD-George Best Belfast City) cost?
You can find cheap one-way flights from $337 and cheap return flights from $905 Houston, TX (IAH-George Bush Intercontinental) to Belfast (BHD-George Best Belfast City) with Expedia. Return flights often range between $1463 and $4506. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Houston, TX (IAH-George Bush Intercontinental) to Belfast (BHD-George Best Belfast City) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Houston, TX (IAH-George Bush Intercontinental) to Belfast (BHD-George Best Belfast City)?
The cheapest month to fly from IAH to BHD is September when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Houston, TX (IAH-George Bush Intercontinental) to Belfast (BHD-George Best Belfast City)?
Enter IAH to BHD and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Houston, TX (IAH-George Bush Intercontinental) to Belfast (BHD-George Best Belfast City)?
American Airlines is one of the cheapest airlines offering connecting flights from George Bush Intercontinental (IAH) to George Best Belfast City (BHD) with a layover in Heathrow (LHR), starting from around $3,051 for a round-trip ticket. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Houston, TX (IAH-George Bush Intercontinental) to Belfast (BHD-George Best Belfast City)?
To find a cheap flight from Houston, TX (IAH-George Bush Intercontinental) to Belfast (BHD-George Best Belfast City), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Houston, TX (IAH-George Bush Intercontinental) to Belfast (BHD-George Best Belfast City)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Houston, TX (IAH-George Bush Intercontinental) to Belfast (BHD-George Best Belfast City)?
The earliest flight from Houston (IAH) to Belfast (BHD) typically departs at around 5:00 AM local time, operated by American Airlines and British Airways. This service is seasonal and active in December. An early flight allows you to maximize your time in Belfast. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Houston, TX (IAH-George Bush Intercontinental) to Belfast (BHD-George Best Belfast City)?
The most popular departure times for flights from Houston, TX (IAH-George Bush Intercontinental) to Belfast (BHD-George Best Belfast City) are in the late afternoon to early evening, from 3pm to 6pm. About 49% of passengers prefer this time window. Many major carriers, including Delta Airlines, British Airways, and Aer Lingus, offer flights during this window. This timing works well because it allows you to enjoy your day in Houston before your flight.
How long does it take to fly from Houston, TX (IAH-George Bush Intercontinental) to Belfast (BHD-George Best Belfast City)?
A flight from IAH to BHD with a layover takes around 16 hours 20 minutes, with the route covering approximately 4,537 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Houston, TX (IAH-George Bush Intercontinental) to Belfast (BHD-George Best Belfast City)?
Business class seats are offered on the IAH to BHD route with British Airways and KLM.
How do I earn miles on a Houston, TX (IAH-George Bush Intercontinental) to Belfast (BHD-George Best Belfast City) flight with Expedia?
It's easy to earn miles on a Houston, TX (IAH-George Bush Intercontinental) to Belfast (BHD-George Best Belfast City) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Belfast from George Bush Intercontinental (IAH)?
When traveling from George Bush Intercontinental (IAH) to Belfast, you can fly into George Best Belfast City (BHD) and Belfast Intl. (BFS). Some flights may connect through major hubs like Dallas-Fort Worth Intl. (DFW), Charlotte-Douglas Intl. (CLT), O'Hare Intl. (ORD) before reaching Belfast. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Houston, TX (IAH-George Bush Intercontinental) to Belfast (BHD-George Best Belfast City) at the last minute?
Typically, booking a last minute flight from Houston, TX (IAH-George Bush Intercontinental) to Belfast (BHD-George Best Belfast City) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Houston, TX (IAH-George Bush Intercontinental) to Belfast (BHD-George Best Belfast City) flight and hotel package?
Securing a Houston, TX (IAH-George Bush Intercontinental) to Belfast (BHD-George Best Belfast City) Belfast Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Houston, TX (IAH-George Bush Intercontinental) to Belfast (BHD-George Best Belfast City)?
If you booked your Houston, TX (IAH-George Bush Intercontinental) to Belfast (BHD-George Best Belfast City) flight within 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, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
George Bush Intercontinental
Destination airport
George Best Belfast City
Airlines serving
Aer Lingus, American Airlines, British Airways, Delta, KLM, Virgin Atlantic
Roundtrip price
$905
Distance
4536 mi

Book with confidence

Houston to Belfast Flights

The cheapest times to fly from Houston to Belfast

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 Houston to Belfast are during the month of September. You can find some of the cheapest flights from Houston to Belfast with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Houston to Belfast

Sunday is one of the best days to book for cheap flights from Houston to Belfast: 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 Houston to Belfast

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 Houston to Belfast in 2026. You can also book with separate airlines for your outbound and return journeys, from $337 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 Houston to Belfast 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 Houston to Belfast 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.

 

Houston to Belfast Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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