Cheap flights from Houston to London from £230
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 departing on 14/10. 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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1 adult
Economy
0 bags
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Cheap return flights
These are some of the best return 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 stopovers.
Finnair flights from Houston to London Heathrow Airport
Our best Finnair deals on Houston to London Heathrow Airport flight tickets
Finnair![Finnair]()
2 Sept![Finnair]()
4 Sept
IAH21:00Houston George Bush Intcntl
9h 20m
LHR12:20London Heathrow
LHR10:20London Heathrow
19h 19m
2 stops
IAH23:39Houston George Bush Intcntl
Finnair![Finnair]()
2 Sept![Finnair]()
4 Sept
IAH14:32Houston George Bush Intcntl
15h 58m
1 stop
LHR12:30London Heathrow
LHR10:20London Heathrow
19h 19m
2 stops
IAH23:39Houston George Bush Intcntl
British Airways flights from Houston to London Heathrow Airport
Our best British Airways deals on Houston to London Heathrow Airport flight tickets
British Airways![British Airways]()
2 Sept![British Airways]()
4 Sept
HOU18:30Houston Hobby
38h 50m
2 stops
LHR15:20London Heathrow
LHR19:30London Heathrow
30h 45m
2 stops
HOU20:15Houston Hobby
British Airways![British Airways]()
24 Sept![British Airways]()
8 Oct
IAH21:00Houston George Bush Intcntl
9h 20m
LHR12:20London Heathrow
LHR14:50London Heathrow
10h 25m
IAH19:15Houston 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 typical price of a round-trip flight between Houston and London Heathrow Airport?
What is the cheapest month to fly to London Heathrow Airport?
In general, February is the cheapest month to fly from Houston to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £493. The month of October is another great option to travel to London Heathrow Airport, with average flight prices from Houston averaging around £504.
What is the cheapest day to depart on your flight to London Heathrow Airport?
On average, the least expensive day to fly to London Heathrow Airport from Houston is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as £501. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £865.
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 in the morning. momondo users have found flights departing from Houston to London Heathrow Airport in the morning for as low as £561. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are £656 on average. Flights to London Heathrow Airport from Houston in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.
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 15 weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £618 when searching 15 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 £543 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?
British Airways, Delta, and Air Canada are the most popular carriers operating from Houston to London Heathrow
Which airlines fly to London Heathrow Airport?
British Airways, United Airlines and Iberia are the top three most popular airlines that fly to London Heathrow Airport from Houston according to our data. British Airways is the first choice among our users, with 41% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 4 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 May 2025, there are 21 flights per day flying from Houston to London Heathrow Airport. The most common time of day flights depart is 16:00, with 50% of flights taking off in the afternoon.
How many flights depart from Houston to London Heathrow Airport on average per week?
149 flights are operational weekly from Houston to London Heathrow Airport as of May 2025. The most popular departure day for this route is Mon, with 15% of flights per week taking off 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?
The straight-line distance from Houston to London Heathrow is 4833.3 mi. In terms of flight time, this usually takes a little over 9h 10m.
When did momondo last update prices for flights from Houston to London Heathrow Airport?
Prices for flights from Houston to London Heathrow Airport refresh daily.
How many operators does momondo search for flights from Houston to London Heathrow Airport?
There are 4 operators available for flights from Houston to London Heathrow Airport as of May 2025.
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 you'll need for your trip to London Heathrow Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
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 £422 | Free Cancellation | Rating 6.6 6,842 reviews | |||
| PriceFrom £433 | Free Cancellation | Rating 6.7 7,045 reviews | |||
| PriceFrom £435 | Free Cancellation | Rating 7.0 2,701 reviews | |||
| PriceFrom £452 | Free Cancellation | Rating 7.4 8,696 reviews |
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Why use momondo?
Why should I use momondo to find a flight deal from Houston to London?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Houston to London . Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Houston to London with flexible booking policies on momondo?
Flights from Houston to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Houston to London?
Once you have performed a search for Houston to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Houston to London right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to London from Houston. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.
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