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Cheap IAH to LHR Flights

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Houston to London route 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, SAS, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic
Flight Price $576
Distance 4,823 mi

London

$561.14

$616.63

$1,212.18

$5,059.12

Winchester

$5,310.03

Cheap IAH to LHR Flights

  • Can I change the date of my flight?

    You sure can adjust your departure date and you may save money by doing it. The cheapest day to fly in October is Friday. Having flexibility in your travel plans means you can save more, so be sure to plan ahead when possible.
  • What is the cheapest day to fly to London?

    Oct 5th has bookings (as of Sep 16th) as cheap as $572. That comes in 40% below the average price. Saving on flight fares means you'll have more cash in your hand for your trip.
  • How long is the flight from IAH to LHR?

    This direct flight will whisk you away to your destination in eight hours and 50 minutes via British Airways. If you catch the 4:15 PM CDT departure, you'll arrive at 7:05 AM BST. Giving you plenty of time to freshen up (remember, there is a six-hour time difference).
  • Do some days of the week have more flight times than others?

    With eight total flight time options, Saturday provides the most flexibility from IAH to LHR. The day of the week with the fewest number of options is Wednesday with only six different times.
  • How many flights are there per day from Houston to London?

    The number of flight times varies by day of the week, but on average, IAH to LHR sees seven different options. You won't have as many choices on this route as most other routes departing the United States.
  • Which airline has the least delays from Houston to London?

    Booking with British Airways means you will arrive to London approximately the time you were supposed to. In fact, this timely airline has a 79% average for landing before the plane turns into a pumpkin. Of course, it never hurts to be prepared. If you're on United Airlines, be sure to sign up for the delay notifications to stay up to date with your flight's status.
  • How much time do people spend in London?

    The average time spent sightseeing in London by travelers from Houston is 10 days. However long you decide to stay, give yourself plenty of time to see what makes London fantastic.

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.

Package Disclaimer

*Savings amount equal to 100% when flight + hotel are booked together. Prices based on searches conducted by fellow shoppers within the past 24 hours. There is no guarantee that these prices will be in effect at the time of your search. Vacation package savings are based on comparison to prices on Expedia.com of the same components booked separately. Savings vary based on origin/destination, length of trip, stay dates and travel partners, and aren't available on all packages.