€258 Cheap Flights Houston to London (IAH-LHR)

View €258 flight on Sat, 29 Nov 2025Opens in a new window

Popular airlines from George Bush Intercontinental Airport (IAH) to Heathrow Airport (LHR)

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Cheap flights from Houston to London (IAH-LHR)

Prices were available within the past 7 days and start at €258 for one-way flights and €447 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sun, 3 Aug - Tue, 19 Aug
IAH
Houston
LHR
London
€447 Return, found 14 hours ago
€447
Return
found 14 hours ago
Select American Airlines flight, departing Sun, 3 Aug from Houston to London, returning Tue, 19 Aug, priced at €447 found 14 hours ago
Iberia
Sun, 3 Aug - Tue, 19 Aug
IAH
Houston
LHR
London
€452 Return, found 14 hours ago
€452
Return
found 14 hours ago
Select Iberia flight, departing Sun, 3 Aug from Houston to London, returning Tue, 19 Aug, priced at €452 found 14 hours ago
British Airways
Tue, 23 Sep - Mon, 29 Sep
IAH
Houston
LHR
London
€490 Return, found 13 hours ago
€490
Return
found 13 hours ago
Select British Airways flight, departing Tue, 23 Sep from Houston to London, returning Mon, 29 Sep, priced at €490 found 13 hours ago
British Airways
Tue, 23 Sep - Mon, 29 Sep
IAH
Houston
LHR
London
€495 Return, found 13 hours ago
€495
Return
found 13 hours ago
Select British Airways flight, departing Tue, 23 Sep from Houston to London, returning Mon, 29 Sep, priced at €495 found 13 hours ago
British Airways
Sun, 3 Aug - Tue, 19 Aug
IAH
Houston
LHR
London
€524 Return, found 14 hours ago
€524
Return
found 14 hours ago
Select British Airways flight, departing Sun, 3 Aug from Houston to London, returning Tue, 19 Aug, priced at €524 found 14 hours ago
British Airways
Tue, 16 Sep - Tue, 14 Oct
IAH
Houston
LHR
London
€524 Return, found 13 hours ago
€524
Return
found 13 hours ago
Select British Airways flight, departing Tue, 16 Sep from Houston to London, returning Tue, 14 Oct, priced at €524 found 13 hours ago
Virgin Atlantic
Tue, 23 Sep - Mon, 29 Sep
IAH
Houston
LHR
London
€558 Return, found 13 hours ago
€558
Return
found 13 hours ago
Select Virgin Atlantic flight, departing Tue, 23 Sep from Houston to London, returning Mon, 29 Sep, priced at €558 found 13 hours ago
United
Sun, 3 Aug - Tue, 19 Aug
IAH
Houston
LHR
London
€561 Return, found 14 hours ago
€561
Return
found 14 hours ago
Select United flight, departing Sun, 3 Aug from Houston to London, returning Tue, 19 Aug, priced at €561 found 14 hours ago
Delta
Tue, 23 Sep - Mon, 29 Sep
IAH
Houston
LHR
London
€565 Return, found 13 hours ago
€565
Return
found 13 hours ago
Select Delta flight, departing Tue, 23 Sep from Houston to London, returning Mon, 29 Sep, priced at €565 found 13 hours ago
Air Canada
Tue, 16 Sep - Tue, 14 Oct
IAH
Houston
LHR
London
€601 Return, found 13 hours ago
€601
Return
found 13 hours ago
Select Air Canada flight, departing Tue, 16 Sep from Houston to London, returning Tue, 14 Oct, priced at €601 found 13 hours ago

Find the cheapest month to fly from Houston (IAH) to London (LHR)

August is typically the cheapest month to fly

From €450 - €1,055 per traveller.

Graph displaying average flight prices per month

Houston to London route information
Origin airport
George Bush Intercontinental
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, JetBlue Airways, KLM, Lufthansa, Turkish Airlines, United, Virgin Atlantic, WestJet
Return price
€447
Distance
7718 km
Average flight time
15 hours 17 mins

Perfect flights from Houston to London

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Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible George Bush Intercontinental to Heathrow ticket options cater to your travel preferences, with incredible one-way fares from €258 and roundtrip prices from €447. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Heathrow and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in London.

Frequently asked questions

How much is a flight from George Bush Intercontinental Airport (IAH) to Heathrow Airport (LHR)?
Based on fares quoted within the last 7 days on Expedia for flights departing within the next year, round-trip journeys between IAH and LHR start from €447. Book ASAP to secure the best price for your trip. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from George Bush Intercontinental Airport (IAH) to London Heathrow?
When it comes to cancellation fees, every airline has a different set of terms and conditions. If you decide to cancel your holiday, head to our Customer Service Portal.
How do I find cheap flights from George Bush Intercontinental Airport (IAH) to Heathrow Airport (LHR) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for IAH to London Heathrow flights, you'll see a "no change fees" filter for you to select.
How far is the flight from IAH to Heathrow Airport (LHR)?
Houston to Hounslow is around 7,800 kilometres, so get ready to spend a while in the air. Make sure you pack all the essentials, from your toothbrush to your hairbrush. Throw in a few snacks to nibble on throughout your flight too.
Which airlines fly direct from Houston Airport to London Heathrow?
There are a few airlines that fly from George Bush Intercontinental Airport (IAH) to LHR. United Airlines (UA) is a great choice, offering 60 flights every month. Operating 52 flights per month on this route, British Airways (BA) is another traveller favourite.
Are George Bush Intercontinental Airport (IAH) to LHR flight tickets cheaper when they're purchased at the last minute?
Flight prices change all the time, so there are no guarantees. While last-minute flight deals between Houston Airport and LHR are of course possible, it also makes sense to keep an eye on prices well before you fly. In fact, some air carriers release their prices up to 12 months prior to the departure date. Expedia is continuously updating the best bargains around, so keep checking back and be ready to lock in your seat when the price dips.

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