₩414,800 Cheap Flights from Houston (IAH) to London (LHR)

View ₩414,800 flight on Mon, Jan 26, 2026Opens 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 ₩414,800 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

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

October is typically the cheapest month to fly

From ₩714,695 - ₩974,830 per traveler.

Graph displaying average flight prices per month

Flights from Houston (IAH) to London (LHR)
Origin airport
George Bush Intercontinental
Destination airport
Heathrow
Distance
7718 km
Average flight time
15 hours 17 mins

Houston to London Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Houston to London will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring London.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with IAH to LHR flights that won’t make your bank account wince. Ready to temporarily leave behind Houston for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to LHR with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

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 . 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 vacation, 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 kilometers, 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 traveler favorite.
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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