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Cheap Flights from Houston (IAH) to London (LHR)

View AU$518 flight on Sat, 14 Nov 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 (IAH) to London (LHR)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, 9 Nov - Wed, 11 Nov
IAH
Houston
LHR
London
AU$1,242 Return, found 3 days ago
AU$1,242
Return
found 3 days ago
Select United flight, departing Mon, 9 Nov from Houston to London, returning Wed, 11 Nov, priced at AU$1,242 found 3 days ago
Virgin Atlantic
Mon, 21 Sept - Tue, 6 Oct
IAH
Houston
LHR
London
AU$1,247 Return, found 1 day ago
AU$1,247
Return
found 1 day ago
Select Virgin Atlantic flight, departing Mon, 21 Sept from Houston to London, returning Tue, 6 Oct, priced at AU$1,247 found 1 day ago
Delta
Mon, 21 Sept - Tue, 6 Oct
IAH
Houston
LHR
London
AU$1,247 Return, found 1 day ago
AU$1,247
Return
found 1 day ago
Select Delta flight, departing Mon, 21 Sept from Houston to London, returning Tue, 6 Oct, priced at AU$1,247 found 1 day ago
United
Mon, 21 Sept - Tue, 6 Oct
IAH
Houston
LHR
London
AU$1,288 Return, found 1 day ago
AU$1,288
Return
found 1 day ago
Select United flight, departing Mon, 21 Sept from Houston to London, returning Tue, 6 Oct, priced at AU$1,288 found 1 day ago
United
Mon, 21 Sept - Tue, 6 Oct
IAH
Houston
LHR
London
AU$1,288 Return, found 1 day ago
AU$1,288
Return
found 1 day ago
Select United flight, departing Mon, 21 Sept from Houston to London, returning Tue, 6 Oct, priced at AU$1,288 found 1 day ago
Finnair
Mon, 21 Sept - Tue, 6 Oct
IAH
Houston
LHR
London
AU$1,288 Return, found 1 day ago
AU$1,288
Return
found 1 day ago
Select Finnair flight, departing Mon, 21 Sept from Houston to London, returning Tue, 6 Oct, priced at AU$1,288 found 1 day ago
Air Canada
Mon, 21 Sept - Tue, 6 Oct
IAH
Houston
LHR
London
AU$1,298 Return, found 1 day ago
AU$1,298
Return
found 1 day ago
Select Air Canada flight, departing Mon, 21 Sept from Houston to London, returning Tue, 6 Oct, priced at AU$1,298 found 1 day ago
Lufthansa
Mon, 21 Sept - Tue, 6 Oct
IAH
Houston
LHR
London
AU$1,316 Return, found 1 day ago
AU$1,316
Return
found 1 day ago
Select Lufthansa flight, departing Mon, 21 Sept from Houston to London, returning Tue, 6 Oct, priced at AU$1,316 found 1 day ago
KLM
Mon, 21 Sept - Tue, 6 Oct
IAH
Houston
LHR
London
AU$1,328 Return, found 1 day ago
AU$1,328
Return
found 1 day ago
Select KLM flight, departing Mon, 21 Sept from Houston to London, returning Tue, 6 Oct, priced at AU$1,328 found 1 day ago
Air France
Mon, 21 Sept - Tue, 6 Oct
IAH
Houston
LHR
London
AU$1,338 Return, found 1 day ago
AU$1,338
Return
found 1 day ago
Select Air France flight, departing Mon, 21 Sept from Houston to London, returning Tue, 6 Oct, priced at AU$1,338 found 1 day ago

Frequently asked questions

How much does a flight from Houston, TX (IAH-George Bush Intercontinental) to London (LHR-Heathrow) cost?
You can find one-way and return flights from IAH to LHR with Expedia. 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 our cheapest fares first, and use the Price Tracking tool to receive alerts when IAH to LHR ticket fares go up or down.
What is the cheapest month to fly from Houston, TX (IAH) to London (LHR)?
The cheapest months to fly from Houston, TX (IAH) to London (LHR) are typically during off-peak season 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 are 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 London (LHR-Heathrow)?
There are 2 airlines offering direct flights from Houston, TX (IAH-George Bush Intercontinental) to London (LHR-Heathrow):
  • British Airways operates 14 direct flights from George Bush Intercontinental to Heathrow every week.
  • United operates 14 direct flights from George Bush Intercontinental to Heathrow every week.
What is the cheapest airline that flies from Houston, TX (IAH-George Bush Intercontinental) to London (LHR-Heathrow)?
Air Canada offers one of the cheapest connecting return flights from Houston, TX (IAH-George Bush Intercontinental) to London (LHR-Heathrow) starting from around AU$1384. United is one of the cheapest airlines offering nonstop return flights from Houston, TX (IAH-George Bush Intercontinental) to London (LHR-Heathrow), with tickets starting from around AU$1419 for flights that can be booked for departure within the next year. These prices are per adult, for economy/coach class. 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.
How do I find cheap flights from Houston, TX (IAH) to London (LHR)?
To find a cheap flight from Houston, TX (IAH) to London (LHR), 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 airline to fly with from Houston, TX (IAH-George Bush Intercontinental) to London (LHR-Heathrow)?
The best airline to fly with from Houston, TX (IAH-George Bush Intercontinental) to London (LHR-Heathrow) will differ from traveler to traveler. If you like to fly early, British Airways offers early morning flights. If price is the most important factor, United typically offers the lowest fares. American Airlines offers the most daily flights from Houston, TX (IAH-George Bush Intercontinental) to London (LHR-Heathrow), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Houston, TX (IAH-George Bush Intercontinental) to London (LHR-Heathrow)?
The cheapest months to fly from Houston, TX (IAH-George Bush Intercontinental) to London (LHR-Heathrow) are typically September and November, with average return flights around AU$980. The most popular months for this route, meaning you'll find plenty of flight options, are March and December. While there isn't a single month that is both the cheapest and most popular, September and November offer great value if you're looking for lower fares, while March and December provide the most flexibility with schedules.
How many flights per day from Houston, TX (IAH-George Bush Intercontinental) to London (LHR-Heathrow)?
You'll find approximately 4 nonstop flights per day from Houston, TX (IAH-George Bush Intercontinental) to London (LHR-Heathrow). For even more choices, look at flights that include layovers, as there are around 149 connecting flights per day. Some common connection points include Hartsfield-Jackson Atlanta Intl. (ATL), O'Hare Intl. (ORD), and John F. Kennedy Intl. (JFK).
What is the earliest flight from Houston, TX (IAH-George Bush Intercontinental) to London (LHR-Heathrow)?
The earliest flight from Houston, TX (IAH-George Bush Intercontinental) to London (LHR-Heathrow) typically departs around 5:00 AM. This flight is operated by American Airlines. This is a seasonal service, active in December. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Houston, TX (IAH-George Bush Intercontinental) to London (LHR-Heathrow)?
You'll typically find the most flights from Houston, TX (IAH-George Bush Intercontinental) to London (LHR-Heathrow) on a Thursday, with around 97 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include United, American Airlines, and Delta. Flight schedules are quite consistent throughout the week, so you'll have a good selection of flights on most days.
What are the most popular departure times for flights from Houston, TX (IAH-George Bush Intercontinental) to London (LHR-Heathrow)?
The most popular departure times for flights from Houston, TX (IAH-George Bush Intercontinental) to London (LHR-Heathrow) are in the afternoon, from 3pm to 6pm. Many major carriers, including United, British Airways and American Airlines, offer flights during this window. Many travellers prefer this time as it allows for a full day of activities before heading to the airport, and you'll arrive in London in the morning, ready to start your day.
How long does it take to fly from Houston, TX (IAH-George Bush Intercontinental) to London (LHR-Heathrow)?
A direct flight from Houston, TX (IAH-George Bush Intercontinental) to London (LHR-Heathrow) typically takes around 9 hours 18 minutes. This route covers a distance of approximately 7,763 kilometres. If you opt for a flight with one stop, your travel time will generally be longer, averaging around 12 hours 48 minutes. Flights with two or more stops usually take about 16 hours. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some extra time when planning your journey.
Can you fly business or first class from Houston, TX (IAH-George Bush Intercontinental) to London (LHR-Heathrow)?
Yes, you can fly business class or first class between IAH and LHR. Airlines that offer business class service on this route include:
  • Lufthansa
  • Air France
  • British Airways
  • Air Canada
  • JetBlue Airways
  • KLM
  • Alaska Airlines
  • Iberia
  • Delta
  • Turkish Airlines
  • United
  • ITA Airways
  • Republic Airlines
  • American Eagle
  • Finnair
  • American Airlines
First class cabins are available on British Airways, United, and American Airlines.
How do I earn miles on a Houston, TX (IAH) to London (LHR) flight with Expedia?
It's easy to earn miles on a Houston, TX (IAH) to London (LHR) 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 London (LHR) from Houston, TX (IAH)?
If you're planning to travel to London from George Bush Intercontinental (IAH), you can fly directly into Heathrow (LHR). Some flights may connect through major hubs like Dallas-Fort Worth Intl. (DFW), Philadelphia Intl. (PHL), or O'Hare Intl. (ORD) before reaching London. 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) to London (LHR) at the last minute?
Typically, booking a last minute flight from Houston, TX (IAH) to London (LHR) 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) to London (LHR) flight and hotel package?
Securing a Houston, TX (IAH) to London (LHR) flight and hotel package 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) to London (LHR)?
If you booked your Houston, TX (IAH) to London (LHR) 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
Heathrow
Airlines serving
Aer Lingus, Aeromexico, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, KLM, Lufthansa, Swiss International Air Lines, Turkish Airlines, United, Virgin Atlantic
Return price
AU$1,242
Distance
7718 km
Average flight time
15 hours 17 mins

Book with confidence

Your quick guide to flights from Houston to London

Pick up great flights from Houston to London

With Expedia, you have your pick of flights a day with 20 airlines covering flights from Houston to London. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Houston to London that take around hours.

Find cheap flights from Houston to London

From the great flight deals with prices currently ranging from AU$1,242 to AU$1,338, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Houston to London around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to London is normally in November.

Reasons to book your flight from Houston to London with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Houston to London across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to London right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Your quick guide to flights from Houston to London

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