฿10,450 Cheap Flights from Houston (IAH) to London (LHR)

View ฿10,450 flight on Tue, 21 Oct 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 (IAH) to London (LHR)

Prices were available within the past 7 days and start at ฿10,450 for one-way flights and ฿21,045 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, 21 Oct - Fri, 31 Oct
IAH
Houston
LHR
London
฿21,045 Return, found 5 days ago
฿21,045
Return
found 5 days ago
Select United flight, departing Tue, 21 Oct from Houston to London, returning Fri, 31 Oct, priced at ฿21,045 found 5 days ago
Delta
Tue, 21 Oct - Fri, 31 Oct
IAH
Houston
LHR
London
฿21,230 Return, found 5 days ago
฿21,230
Return
found 5 days ago
Select Delta flight, departing Tue, 21 Oct from Houston to London, returning Fri, 31 Oct, priced at ฿21,230 found 5 days ago
Delta
Tue, 21 Oct - Fri, 31 Oct
IAH
Houston
LHR
London
฿21,255 Return, found 5 days ago
฿21,255
Return
found 5 days ago
Select Delta flight, departing Tue, 21 Oct from Houston to London, returning Fri, 31 Oct, priced at ฿21,255 found 5 days ago
United
Tue, 21 Oct - Fri, 31 Oct
IAH
Houston
LHR
London
฿21,270 Return, found 5 days ago
฿21,270
Return
found 5 days ago
Select United flight, departing Tue, 21 Oct from Houston to London, returning Fri, 31 Oct, priced at ฿21,270 found 5 days ago
Air Canada
Tue, 21 Oct - Fri, 31 Oct
IAH
Houston
LHR
London
฿21,455 Return, found 5 days ago
฿21,455
Return
found 5 days ago
Select Air Canada flight, departing Tue, 21 Oct from Houston to London, returning Fri, 31 Oct, priced at ฿21,455 found 5 days ago
Air Canada
Tue, 21 Oct - Fri, 31 Oct
IAH
Houston
LHR
London
฿21,495 Return, found 5 days ago
฿21,495
Return
found 5 days ago
Select Air Canada flight, departing Tue, 21 Oct from Houston to London, returning Fri, 31 Oct, priced at ฿21,495 found 5 days ago
British Airways
Tue, 21 Oct - Fri, 31 Oct
IAH
Houston
LHR
London
฿21,955 Return, found 5 days ago
฿21,955
Return
found 5 days ago
Select British Airways flight, departing Tue, 21 Oct from Houston to London, returning Fri, 31 Oct, priced at ฿21,955 found 5 days ago
Lufthansa
Tue, 21 Oct - Fri, 31 Oct
IAH
Houston
LHR
London
฿22,145 Return, found 5 days ago
฿22,145
Return
found 5 days ago
Select Lufthansa flight, departing Tue, 21 Oct from Houston to London, returning Fri, 31 Oct, priced at ฿22,145 found 5 days ago
Air France
Tue, 21 Oct - Fri, 31 Oct
IAH
Houston
LHR
London
฿22,500 Return, found 5 days ago
฿22,500
Return
found 5 days ago
Select Air France flight, departing Tue, 21 Oct from Houston to London, returning Fri, 31 Oct, priced at ฿22,500 found 5 days ago
Lufthansa
Tue, 21 Oct - Fri, 31 Oct
IAH
Houston
LHR
London
฿22,735 Return, found 5 days ago
฿22,735
Return
found 5 days ago
Select Lufthansa flight, departing Tue, 21 Oct from Houston to London, returning Fri, 31 Oct, priced at ฿22,735 found 5 days ago
Lufthansa
Tue, 21 Oct - Fri, 31 Oct
IAH
Houston
LHR
London
฿22,920 Return, found 5 days ago
฿22,920
Return
found 5 days ago
Select Lufthansa flight, departing Tue, 21 Oct from Houston to London, returning Fri, 31 Oct, priced at ฿22,920 found 5 days ago
Air France
Tue, 21 Oct - Fri, 31 Oct
IAH
Houston
LHR
London
฿22,930 Return, found 5 days ago
฿22,930
Return
found 5 days ago
Select Air France flight, departing Tue, 21 Oct from Houston to London, returning Fri, 31 Oct, priced at ฿22,930 found 5 days ago
Air France
Tue, 21 Oct - Fri, 31 Oct
IAH
Houston
LHR
London
฿23,220 Return, found 5 days ago
฿23,220
Return
found 5 days ago
Select Air France flight, departing Tue, 21 Oct from Houston to London, returning Fri, 31 Oct, priced at ฿23,220 found 5 days ago

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

August is typically the cheapest month to fly

From ฿17,054 - ฿39,879 per traveller.

Graph displaying average flight prices per month

Flight from Houston to London route information
Origin airport
George Bush Intercontinental
Destination airport
Heathrow
Return price
฿21,045
Distance
7718 km
Average flight time
15 hours 17 mins

Perfect flights from Houston to London

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Houston to London. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of London, 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 ฿10,450 and roundtrip prices from ฿21,045. 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 London 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 IAH to LHR 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 ฿21,045. 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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