691 € Cheap Flights from Houston George Bush Intercntl. to London Heathrow

Compare Houston George Bush Intercntl. to London Heathrow flight deals

Find the cheapest month or even day of the year to fly to London Heathrow

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Flight deals from Houston George Bush Intercntl. to London Heathrow

Looking for a cheap last-minute deal or the best return flight from Houston George Bush Intercntl. Airport to London Heathrow Airport? If you want to travel next month, return fares start from 698 €. Find the lowest prices on one-way and return tickets right here.

London.691 € per passenger.Departing Sat, 12 Sep, returning Tue, 22 Sep.Return flight with Frontier Airlines and Vueling Airlines.Outbound indirect flight with Frontier Airlines, departs from Houston George Bush Intercntl. on Sat, 12 Sep, arriving in London Heathrow.Inbound indirect flight with Vueling Airlines, departs from London Heathrow on Tue, 22 Sep, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From 691 €, select.

London.692 € per passenger.Departing Wed, 18 Nov, returning Wed, 25 Nov.Return flight with WestJet and Vueling Airlines.Outbound indirect flight with WestJet, departs from Houston George Bush Intercntl. on Wed, 18 Nov, arriving in London Heathrow.Inbound indirect flight with Vueling Airlines, departs from London Heathrow on Wed, 25 Nov, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From 692 €, select.

London.695 € per passenger.Departing Mon, 31 Aug, returning Tue, 8 Sep.Return flight with Frontier Airlines and Vueling Airlines.Outbound indirect flight with Frontier Airlines, departs from Houston George Bush Intercntl. on Mon, 31 Aug, arriving in London Heathrow.Inbound indirect flight with Vueling Airlines, departs from London Heathrow on Tue, 8 Sep, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From 695 €, select.

London.698 € per passenger.Departing Sat, 15 Aug, returning Mon, 24 Aug.Return flight with jetBlue and Vueling Airlines.Outbound indirect flight with jetBlue, departs from Houston George Bush Intercntl. on Sat, 15 Aug, arriving in London Heathrow.Inbound indirect flight with Vueling Airlines, departs from London Heathrow on Mon, 24 Aug, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From 698 €, select.

London.699 € per passenger.Departing Mon, 21 Sep, returning Tue, 6 Oct.Return flight with jetBlue.Outbound indirect flight with jetBlue, departs from Houston George Bush Intercntl. on Mon, 21 Sep, arriving in London Heathrow.Inbound indirect flight with jetBlue, departs from London Heathrow on Tue, 6 Oct, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From 699 €, select.

London.702 € per passenger.Departing Tue, 23 Mar, returning Thu, 25 Mar.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Houston George Bush Intercntl. on Tue, 23 Mar, arriving in London Heathrow.Inbound indirect flight with Air Canada, departs from London Heathrow on Thu, 25 Mar, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From 702 €, select.

London.702 € per passenger.Departing Tue, 6 Oct, returning Tue, 20 Oct.Return flight with WestJet and Vueling Airlines.Outbound indirect flight with WestJet, departs from Houston George Bush Intercntl. on Tue, 6 Oct, arriving in London Heathrow.Inbound indirect flight with Vueling Airlines, departs from London Heathrow on Tue, 20 Oct, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From 702 €, select.

London.709 € per passenger.Departing Tue, 26 Jan, returning Thu, 28 Jan.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Houston George Bush Intercntl. on Tue, 26 Jan, arriving in London Heathrow.Inbound indirect flight with Air Canada, departs from London Heathrow on Thu, 28 Jan, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From 709 €, select.

London.713 € per passenger.Departing Tue, 25 Aug, returning Tue, 13 Oct.Return flight with jetBlue and Vueling Airlines.Outbound indirect flight with jetBlue, departs from Houston George Bush Intercntl. on Tue, 25 Aug, arriving in London Heathrow.Inbound indirect flight with Vueling Airlines, departs from London Heathrow on Tue, 13 Oct, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From 713 €, select.

London.725 € per passenger.Departing Wed, 21 Oct, returning Sat, 14 Nov.Return flight with WestJet and SWISS.Outbound indirect flight with WestJet, departs from Houston George Bush Intercntl. on Wed, 21 Oct, arriving in London Heathrow.Inbound indirect flight with SWISS, departs from London Heathrow on Sat, 14 Nov, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From 725 €, select.

London.743 € per passenger.Departing Tue, 1 Sep, returning Sun, 29 Nov.Return flight with Frontier Airlines and Air France.Outbound indirect flight with Frontier Airlines, departs from Houston George Bush Intercntl. on Tue, 1 Sep, arriving in London Heathrow.Inbound indirect flight with Air France, departs from London Heathrow on Sun, 29 Nov, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From 743 €, select.

London.759 € per passenger.Departing Mon, 23 Nov, returning Thu, 3 Dec.Return flight with Virgin Atlantic.Outbound indirect flight with Virgin Atlantic, departs from Houston George Bush Intercntl. on Mon, 23 Nov, arriving in London Heathrow.Inbound indirect flight with Virgin Atlantic, departs from London Heathrow on Thu, 3 Dec, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From 759 €, select.

London.768 € per passenger.Departing Tue, 29 Dec, returning Tue, 12 Jan.Return flight with Virgin Atlantic.Outbound indirect flight with Virgin Atlantic, departs from Houston George Bush Intercntl. on Tue, 29 Dec, arriving in London Heathrow.Inbound indirect flight with Virgin Atlantic, departs from London Heathrow on Tue, 12 Jan, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From 768 €, select.

London.768 € per passenger.Departing Wed, 9 Dec, returning Mon, 14 Dec.Return flight with Virgin Atlantic.Outbound indirect flight with Virgin Atlantic, departs from Houston George Bush Intercntl. on Wed, 9 Dec, arriving in London Heathrow.Inbound indirect flight with Virgin Atlantic, departs from London Heathrow on Mon, 14 Dec, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From 768 €, select.

London.771 € per passenger.Departing Sun, 30 Aug, returning Mon, 30 Nov.Return flight with jetBlue and Icelandair.Outbound indirect flight with jetBlue, departs from Houston George Bush Intercntl. on Sun, 30 Aug, arriving in London Heathrow.Inbound indirect flight with Icelandair, departs from London Heathrow on Mon, 30 Nov, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From 771 €, select.

London.772 € per passenger.Departing Tue, 16 Feb, returning Tue, 23 Feb.Return flight with United.Outbound indirect flight with United, departs from Houston George Bush Intercntl. on Tue, 16 Feb, arriving in London Heathrow.Inbound indirect flight with United, departs from London Heathrow on Tue, 23 Feb, arriving in Houston George Bush Intercntl..Price includes taxes and charges.From 772 €, select.

Find the cheapest month to fly from Houston George Bush Intercntl. to London Heathrow

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Houston George Bush Intercntl. to London Heathrow flights are currently cheapest in September.

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Direct flights from Houston George Bush Intercntl. to London Heathrow

Houston George Bush Intercntl. to London Heathrow: Alternative routes

Compare routes from Houston George Bush Intercntl. to London below. You may find an airport to fly into that's cheaper, faster, or easier than London Heathrow.

Houston to London: Flight information

The things to know before you go.

Cheapest flight found	691 €
Cheapest month to fly	September
Average flight time	9 hrs, 14 mins
Most popular airline	Aer Lingus
Average flights per week	176

Finding cheap flights from Houston George Bush Intercntl. to London Heathrow: Frequently asked questions

How much are return flights from Houston George Bush Intercntl. to London Heathrow?

The best price we found for a return flight from Houston George Bush Intercntl. to London Heathrow is 691 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Houston George Bush Intercntl. to London Heathrow?

9 hours and 14 minutes is the average flight time from Houston George Bush Intercntl. to London Heathrow.

Which airlines fly direct from Houston George Bush Intercntl. to London Heathrow?

Aer Lingus, Finnair and American Airlines fly direct from Houston George Bush Intercntl. to London Heathrow.

How many flights are there a week from Houston George Bush Intercntl. to London Heathrow?

As of July 2026, there are 176 flights per week flying from Houston George Bush Intercntl. to London Heathrow.

When is the cheapest time to fly from Houston George Bush Intercntl. to London Heathrow?

The cheapest month to fly from Houston George Bush Intercntl. to London Heathrow is usually September.

Which upcoming date is cheapest to fly from Houston George Bush Intercntl. Airport to London Heathrow Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Houston George Bush Intercntl. Airport to London Heathrow Airport on Saturday, 12 September 2026.

Can I get a direct flight from Houston George Bush Intercntl. Airport to London Heathrow Airport?

Yes – the average flight time is 9 hours and 14 minutes.

How can I find the best flight deal to London Heathrow?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Heathrow but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to London?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Houston George Bush Intercntl. Airport to London Heathrow with?

Currently, Frontier Airlines and Finnair offer the cheapest flight tickets to London Heathrow.

Travelling from Houston George Bush Intercntl. Airport (IAH) to London Heathrow Airport (LHR): what you need to know

The average duration of a direct flight from Houston George Bush Intercntl. Airport to London Heathrow Airport is 9 hours 15 minutes.
The timezone in London is UTC+0, which is six hours ahead of Houston.
Pack your bags and choose from 27 weekly Houston George Bush Intercntl. Airport to London Heathrow Airport flights.
Get to the airport on time so you don't miss your IAH to LHR flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid the stress of rushing.
You'll likely experience longer lines in popular months like July. Arriving up to four hours in advance for international flights and two hours for a domestic departure will help ensure a smooth travel experience.
You'll find a range of airlines offering direct flights from Houston George Bush Intercntl. Airport to London Heathrow Airport. When you're ready to start your London holiday, let one of these carriers fly you to this must-see corner of the United Kingdom:
The majority of passengers choose to fly with United on this route.
With 72.73% of its services landing as planned, Aer Lingus is the most punctual carrier operating IAH to LHR flights.
We make it a breeze to book a flight with a stopover. To see all your options for tickets from Houston George Bush Intercntl. Airport to London Heathrow Airport, uncheck 'Direct flights only.' Then, choose a flight that has a stop long enough to tour your chosen city. Worthwhile stopovers between IAH and LHR include:
- Atlanta Hartsfield-Jackson Airport
- Detroit Wayne County Airport
- Nashville Airport

How to find the cheapest flights from Houston George Bush Intercntl. Airport (IAH) to London Heathrow Airport (LHR)

262 € is the lowest price for a one-way Houston George Bush Intercntl. Airport to London Heathrow Airport flight. A return flight starts at 691 €. These fares can change depending on availability and demand.
To get cheap tickets from IAH to LHR, book your journey three months before your planned departure.
The cheapest month for flights from Houston George Bush Intercntl. Airport to London Heathrow Airport is August. Use the 'Whole month' tool to see the lowest airfares if you have flexible dates.
You don't need to check every day to find out if fares have dropped when you create a Price Alert. We'll update you as soon as the price changes on cheap flights from IAH to LHR.
Tailor your trip using filters. Pick your preferred arrival and departure times, airlines and total journey duration. You can also sort results by 'Cheapest,' 'Fastest' or 'Best' flights from Houston George Bush Intercntl. Airport to London Heathrow Airport.

Handy information about Houston George Bush Intercntl. Airport (IAH)

IAH's address is 16930 JFK Boulevard.
When it comes to Houston George Bush Intercntl. Airport's on-time performance, 79% of flights arrive within the expected timeframe.
Houston George Bush Intercntl. Airport is about 40 kilometres from central Houston. If you're catching a taxi, ride-sharing or driving from the centre, it'll take 30 minutes or so to get there, depending on the traffic.
The journey on public transport typically takes 1 hour 10 minutes.
Get your holiday off to a stress-free start by staying near IAH. Whether you've booked an early flight from Houston George Bush Intercntl. Airport to London Heathrow Airport or just don't want to be rushed, these stays are ideal:

Arriving at London Heathrow Airport (LHR)

If you're coming in on a late Houston George Bush Intercntl. Airport to London Heathrow Airport flight, nothing tops the convenience of staying near the terminal. Pick up your bags from the carousel and then be showered and sleeping not long after at one of these options near LHR:
Pick up a London Heathrow Airport rental car and explore London and beyond with your own set of wheels. Surprice, U-Save and Green Motion are leading providers you can book with here.
To lock in the lowest price, book your vehicle from London Heathrow Airport about one week before travelling.

Getting from London Heathrow Airport (LHR) to central London

From London Heathrow Airport, London is approximately 24 kilometres away. It takes around 45 minutes to reach the centre by car.
It'll take around 25 minutes when travelling by public transport.

When to fly to London Heathrow Airport (LHR)

The quietest month for a flight from Houston George Bush Intercntl. Airport to London Heathrow Airport is March, while July is the busiest. Choose the ideal time to go to London based on whether you prefer a laid-back vibe or a more bustling atmosphere.
Lock in your flight from Houston George Bush Intercntl. Airport to London Heathrow Airport for July if you'd like to go to London during its warmest month. You can expect temperatures of between 11ºC (52ºF) and 26ºC (79ºF).
Look for cheap tickets from IAH to LHR in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between 0ºC (32ºF) and 9ºC (48ºF) on average.

Explore more of the United Kingdom

You've done London, now it's time to explore other parts of the United Kingdom. Travel about 257 kilometres north-west to Manchester to check off its top sights. From Manchester United Museum & Stadium Tour to The Homes of Football and Museum of Science and Industry, there's plenty to keep you busy.
If you're eager to discover another great destination in the United Kingdom, consider Birmingham, about 161 kilometres north-west of London. Birmingham Museum & Art Gallery, Birmingham Hippodrome Theatre and Bournville Experience are key highlights.