£241 Cheap Flights from Houston (IAH) to London (LHR)

You can find one-way and return flights from Houston, TX (IAH) to London (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.

September is typically the cheapest month to fly from Houston, TX (IAH-George Bush Intercontinental) to London (LHR-Heathrow), with average return fares around £491. September often sees lower prices as the peak summer travel season winds down, and demand for flights decreases. Other cheap months to fly from Houston, TX (IAH-George Bush Intercontinental) to London (LHR-Heathrow) include October and November.

Enter IAH to LHR and your travel dates, then apply the 'Nonstop' filter to see only direct flights.

To find a cheap flight from Houston, TX (IAH-George Bush Intercontinental) to London (LHR-Heathrow), 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.

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.

The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.

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).

Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from Houston, TX (IAH) to London (LHR). To compare more early flights, use the "Early Morning" and "Morning" filters in your search.

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.

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.

Flying nonstop from IAH to LHR takes around 9 hours 20 minutes, with the route covering approximately 7,763 kilometers. Flights with a layover typically take 2 hours 40 minutes longer than direct options. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.

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.

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.

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.

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.

If you booked your Houston, TX (IAH-George Bush Intercontinental) to London (LHR-Heathrow) 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.