Cheap flights from Houston to London Heathrow Airport from $276
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Houston to London Heathrow Airport departing on 4/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights
These are some of the best round-trip flight deals from Houston to London that have been recently found on momondo from popular airlines, departing in the coming months.
Cheap one-way flights
Flying one-way? These are some of the best deals recently discovered on momondo for flights from Houston to London.
Cheap last minute flights
Planning a quick getaway from Houston to London? These are the last-minute flight deals available now.
Cheap direct flights
If you prefer a non-stop journey, check out our latest direct flight deals to London, so you can enjoy a seamless trip without layovers.
Iberia flights from Houston to London Heathrow Airport
Our best Iberia deals on Houston to London Heathrow Airport flight tickets
Iberia![Iberia]()
Apr 8![Iberia]()
Apr 15
IAH3:30 pmHouston George Bush Intcntl
9h 10m
LHR6:40 amLondon Heathrow
LHR9:25 amLondon Heathrow
10h 15m
IAH1:40 pmHouston George Bush Intcntl
Iberia![Iberia]()
Apr 15![Iberia]()
Apr 24
IAH3:30 pmHouston George Bush Intcntl
9h 10m
LHR6:40 amLondon Heathrow
LHR2:50 pmLondon Heathrow
10h 25m
IAH7:15 pmHouston George Bush Intcntl
Finnair flights from Houston to London Heathrow Airport
Our best Finnair deals on Houston to London Heathrow Airport flight tickets
Finnair![Finnair]()
Apr 27![Finnair]()
May 7
IAH12:02 pmHouston George Bush Intcntl
20h 23m
1 stop
LHR2:25 pmLondon Heathrow
LHR9:30 amLondon Heathrow
18h 31m
2 stops
IAH10:01 pmHouston George Bush Intcntl
Finnair![Finnair]()
Mar 16![Finnair]()
Apr 1
IAH10:45 pmHouston George Bush Intcntl
9h 00m
LHR12:45 pmLondon Heathrow
LHR9:25 amLondon Heathrow
10h 15m
IAH1:40 pmHouston George Bush Intcntl
See travel insights to London from
How to get the cheapest flight ticket from Houston to London Heathrow Airport
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
Prices
Airlines
Other information
What is the cheapest month to fly to London Heathrow Airport?
The month of February is, on average, the cheapest month to fly to London Heathrow Airport from Houston, with most prices found around $657. If you’re not able to fly to London Heathrow Airport in February, then September is your next best option. Flight prices from Houston to London Heathrow Airport during September average around $671.
What is the cheapest day to depart on your flight to London Heathrow Airport?
Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $781. The most expensive day to fly to London Heathrow Airport is Friday, with ticket prices averaging around $954.
What is the cheapest time of day to depart on your flight to London Heathrow Airport?
According to our data, the cheapest time of day to fly to London Heathrow Airport is at noon. momondo users have found flights departing from Houston to London Heathrow Airport at noon for as low as $886. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive with an average ticket price of $1,043.
What is the cheapest Houston to London Heathrow flight route?
Fly from Houston George Bush Intcntl to London Heathrow for the best Houston - London Heathrow flight prices
How far in advance should I book a flight to London Heathrow Airport?
You are more likely to see cheaper flights to London Heathrow Airport from Houston when booking 7 weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $843 when searching 7 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Houston for as low as $730 on momondo.
What cabin class options are available on Houston to London Heathrow flights?
There are 4 cabin classes available to choose from on Houston to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Houston to London Heathrow?
JetBlue, WestJet, and Brussels Airlines are the most popular carriers operating from Houston to London Heathrow
What airlines fly to London Heathrow Airport?
United Airlines, British Airways and Iberia are the top three most popular airlines that fly to London Heathrow Airport from Houston according to our data. United Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 12 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from Houston to London Heathrow Airport on average per day?
As of February 2025, there are 16 flights per day flying from Houston to London Heathrow Airport. The most common time of day flights depart is 4:00PM, with 51% of flights taking off in the afternoon.
How many flights depart from Houston to London Heathrow Airport on average per week?
The number of flights available between Houston and London Heathrow Airport is 117 per week as of February 2025. The most frequent departure day is Thu, with 19% of weekly flights leaving on this day.
Cheap Houston to London Heathrow Airport flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Houston to London Heathrow Airport
How far is Houston to London Heathrow by plane?
Houston and London Heathrow are 4833.3 mi apart from one another. 9h 00m is a normal flight duration for this route.
When did momondo last update prices for flights from Houston to London Heathrow Airport?
Prices for flights from Houston to London Heathrow Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Houston to London Heathrow Airport?
As of February 2025, there are 12 operators available to choose from for flights from Houston to London Heathrow Airport.
How old do you have to be to fly from Houston to London Heathrow Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Houston to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
Best airlines flying from Houston to London Heathrow Airport
Compare and see reviews for airlines that fly from Houston to London Heathrow Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $540 | Free Cancellation | Rating 7.4 1,449 reviews | |||
| PriceFrom $560 | Free Cancellation | Rating 7.0 2,639 reviews | |||
| PriceFrom $568 | Free Cancellation | Rating 7.0 8,748 reviews | |||
| PriceFrom $578 | Free Cancellation | Rating 7.5 654 reviews | |||
| PriceFrom $581 | Free Cancellation | Rating 7.6 1,274 reviews | |||
| PriceFrom $596 | Free Cancellation | Rating 8.0 8,219 reviews | |||
| PriceFrom $604 | Free Cancellation | Rating 6.6 6,762 reviews | |||
| PriceFrom $610 | Free Cancellation | Rating 7.4 8,765 reviews | |||
| PriceFrom $612 | Free Cancellation | Rating 6.7 6,986 reviews | |||
| PriceFrom $619 | Free Cancellation | Rating 7.2 10,000 reviews |
Traveling to a place near London?
Book flights to London if you plan to visit one of these locationsHounslow
Gatwick
Croydon
Luton
Slough
Guildford
Ipswich
Hayes
Stansted
Ilford
Canterbury
Dover
Salisbury
Swindon
Milton Keynes
Dartford
Horley
Colchester
Wembley
Poole
Why use momondo?
Why should I use momondo to find a flight deal from Houston to London?
It is quick and easy to find Houston to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.
Can I find flights from Houston to London with flexible booking policies on momondo?
momondo does allow users to show only those flights to London from Houston which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Houston to London?
momondo provides multiple filters to help you find the best flight to London from Houston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Houston to London right now. Can momondo alert me if prices change?
If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Houston and alert you when they change.
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