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$516+ Cheap flights from George Bush Intcntl (IAH) to Heathrow (LHR)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — LHR
Jul 11 — Jul 181
Sat 7/11
Sat 7/18
1 adult, Economy
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Cheapflights Tip: The best prices from Houston George Bush Intcntl to London Heathrow are usually found in October or January, booked 70 days in advance, depart on a Wednesday or Tuesday and return on a Sunday

Cheap flight deals from George Bush Intcntl to Heathrow

Cheapest flights from George Bush Intcntl to Heathrow
Explore the most affordable flight options available from George Bush Intcntl to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 11, 2026.

This KLM deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/95:48 pm
IAH
-
LHR
1 stop13h 17m
KLM
Sun 8/166:30 am
LHR
-
IAH
1 stop12h 50m
KLM
Deal found 6/8$953
This Justfly.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2012:10 pm
IAH
-
LHR
2 stops26h 25m
Air Canada
Fri 11/276:00 am
LHR
-
IAH
2 stops21h 39m
Air Canada
Deal found 6/10$954
This Cheapflightsfares deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/93:30 pm
IAH
-
LHR
Nonstop9h 10m
British Airways
Mon 8/179:10 am
LHR
-
IAH
Nonstop10h 15m
British Airways
Deal found 6/8$955
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/299:41 am
IAH
-
LHR
2 stops16h 14m
Delta
Sun 8/166:30 am
LHR
-
IAH
1 stop12h 50m
Delta
Deal found 6/10$956
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/48:15 pm
IAH
-
LHR
Nonstop9h 20m
United Airlines
Sat 9/126:55 am
LHR
-
IAH
1 stop15h 45m
United Airlines
Deal found 6/11$957
This Air Canada deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:20 am
IAH
-
LHR
2 stops17h 10m
Air Canada
Mon 10/198:30 am
LHR
-
IAH
2 stops17h 22m
Air Canada
Deal found 6/9$958
This Air Canada deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:20 am
IAH
-
LHR
2 stops17h 10m
Air Canada
Sun 10/48:30 am
LHR
-
IAH
2 stops17h 22m
Air Canada
Deal found 6/8$960
This FlightHub deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/147:01 pm
IAH
-
LHR
1 stop11h 49m
British Airways
Mon 12/149:35 am
LHR
-
IAH
Nonstop10h 30m
British Airways
Deal found 6/10$961
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:36 pm
IAH
-
LHR
1 stop12h 39m
Delta
Sat 9/126:30 am
LHR
-
IAH
1 stop12h 45m
Delta
Deal found 6/11$962
This Cheapflightsfares deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/199:05 pm
IAH
-
LHR
Nonstop9h 20m
British Airways
Sat 10/39:10 am
LHR
-
IAH
Nonstop10h 15m
British Airways
Deal found 6/8$964

Find flight deals from George Bush Intcntl to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from George Bush Intcntl (IAH) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$953
(KLM)

One-way from

$516
(United Airlines)

Popular in

June

Cheapest in

October

Average price

$1,429

Good round-trip deal

$1,054 or less

Good one-way deal

$514 or less
Provider with most accurate pricing for Houston George Bush Intcntl-London Heathrow flight deals.
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Provider most trusted by Cheapflights users for Houston George Bush Intcntl-London Heathrow flights.
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From Houston George Bush Intcntl to London Heathrow
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One-way flight from Houston George Bush Intcntl to London Heathrow
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Highest demand for flights based on searches. 25% potential increase in price ($306 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($51 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
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Price to beat on a round-trip flight from Houston George Bush Intcntl to London Heathrow.
Search Deals
Price to beat on a one-way flight from Houston George Bush Intcntl to London Heathrow.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from George Bush Intcntl to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 11, 2026.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 11/1

4:20 pm-7:30 am

Nonstop9h 10m

London Heathrow

Sat 11/7

12:05 pm-4:40 pm

Nonstop10h 35m

$978

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 10/4

2:38 pm-4:00 pm

2 stops19h 22m

London Heathrow

Wed 10/28

7:05 am-11:58 pm

3 stops21h 53m

$1,034

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Fri 8/21

2:37 pm-4:00 pm

2 stops19h 23m

London Heathrow

Fri 8/28

9:05 pm-9:05 pm

3 stops30h 00m

$1,136

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 8/19

4:14 pm-9:35 pm

3 stops23h 21m

London Heathrow

Sun 8/30

6:40 am-9:21 pm

3 stops20h 41m

$1,140

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sun 7/12

5:05 pm-4:35 pm

1 stop17h 30m

London Heathrow

Mon 8/3

7:15 pm-1:20 pm

1 stop24h 05m

$1,154

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Mon 7/6

5:05 pm-1:45 pm

1 stop14h 40m

London Heathrow

Tue 7/21

6:15 am-2:50 pm

1 stop14h 35m

$1,190

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Sat 7/4

4:35 pm-7:55 am

Nonstop9h 20m

London Heathrow

Wed 7/22

7:25 am-4:30 pm

1 stop15h 05m

$1,209

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 10/14

1:00 pm-3:35 pm

2 stops20h 35m

London Heathrow

Mon 10/19

8:00 am-9:50 am

3 stops31h 50m

$1,245

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Wed 10/7

11:45 am-8:20 pm

2 stops26h 35m

London Heathrow

Sat 10/17

9:25 pm-10:55 am

2 stops43h 30m

$1,246

HoustonLondon

IAH - LHR

IAHLHR

Houston George Bush Intcntl

Tue 7/7

11:32 am-10:30 am

2 stops16h 58m

London Heathrow

Mon 7/20

8:40 am-10:24 pm

2 stops19h 44m

$1,267

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Compare providers for flights from George Bush Intcntl to Heathrow

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from George Bush Intcntl to Heathrow in June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
JustAirTicketPrice Accuracy-Trust Score*1 star
BusinessClassPrice Accuracy-Trust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars
JetabroadPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Houston George Bush Intcntl Airport-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Houston George Bush Intcntl Airport-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Houston George Bush Intcntl Airport-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Houston George Bush Intcntl Airport-London Heathrow Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Houston George Bush Intcntl Airport-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from George Bush Intcntl to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from George Bush Intcntl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Houston George Bush Intcntl Airport to London Heathrow Airport

How far ahead should I book a flight from Houston George Bush Intcntl Airport to London Heathrow Airport?

The best time to book flights from Houston George Bush Intcntl Airport to London Heathrow Airport is 69 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to London Heathrow Airport?

Currently, October is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to London Heathrow Airport (average of $668). Flying from Houston George Bush Intcntl Airport to London Heathrow Airport in June is currently the most expensive (average of $1,429). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IAH to LHR?

Find hourly flight availability from George Bush Intcntl to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 11, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Houston George Bush Intcntl Airport to London Heathrow Airport as you normally would.

How much does it cost to fly round-trip from Houston George Bush Intcntl Airport to London Heathrow Airport?

The best insider tips for Houston George Bush Intcntl Airport to London Heathrow Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Houston George Bush Intcntl Airport to London Heathrow Airport trip
Our travel experts
Evie Carrick

Evie Carrick

Expert on IAH

Evie Carrick is a writer and editor who has lived in five countries and traveled to over 50, with extensive experience flying around the world. She was born in Colorado, but has spent time flying to both coasts to visit family. She writes regularly for Travel + Leisure, BuzzFeed, and SKI and recently published seven travel journals with Simon & Schuster.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on LHR

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated June 11, 2026.
Get a feel of what it's like to fly with United Airlines,American Airlines, andIberia from Houston George Bush Intcntl Airport to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,807 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Entertainment

7.1

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
United Airlines
7.4
Good
9,807 reviews
United Airlines
7.4
Good
9,807 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Entertainment

7.1

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
American Airlines
7.1
Good
11,643 reviews
United Airlines
7.4
Good
9,807 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Entertainment

7.1

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
Iberia
7.0
Good
3,232 reviews
United Airlines
7.4
Good
9,807 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Entertainment

7.1

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
Lufthansa
6.8
Okay
8,055 reviews
United Airlines
7.4
Good
9,807 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Entertainment

7.1

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
British Airways
6.7
Okay
8,044 reviews
United Airlines
7.4
Good
9,807 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Entertainment

7.1

Crew

8.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Related info for your journey

Find useful and relevant information for your journey from George Bush Intcntl to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Houston George Bush Intcntl Airport to London Heathrow Airport?

    United Airlines, Scandinavian Airlines, and Virgin Atlantic can get you from Houston George Bush Intcntl Airport to London Heathrow Airport in just under 9h 10m. Your travel time can differ by up to 10h 12m. Houston George Bush Intcntl Airport and London Heathrow Airport are separated by a distance of 4820 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Houston George Bush Intcntl Airport to London Heathrow Airport round-trip?

    Currently priced at $101, JetBlue will fly you from Houston George Bush Intcntl Airport to London Heathrow Airport and back. In addition to JetBlue, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and United Airlines - these airlines can fly you to your destination from $521 and $523, respectively. These flights start at 88% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Houston George Bush Intcntl Airport to London Heathrow Airport one-way?

    For one-way options, check prices for British Airways. According to our data, you can fly for as low as $358. Users have also found prices from $362 and $391 on Lufthansa and Iberia, respectively.

  • What are the most reliable airlines from Houston George Bush Intcntl Airport to London Heathrow Airport?

    Before booking your flight to London Heathrow Airport from Houston George Bush Intcntl Airport, check out the most reliable airlines to get you to your destination on time: American Airlines (76%), Aer Lingus (76%), Finnair( 76%).

  • What are the cheapest flights from Houston George Bush Intcntl Airport to London Heathrow Airport?

    On average you can expect to pay $2,469 for a flight from Houston George Bush Intcntl Airport to London Heathrow Airport. The cheapest flight overall is $380 while the most popular route, (Houston George Bush Intcntl - London Heathrow) is currently priced at $786.

  • Can I find deals for flights from George Bush Intcntl to Heathrow that include hotel bookings?

    Yes. In addition to deals on George Bush Intcntl to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from George Bush Intcntl to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from George Bush Intcntl to Heathrow.

  • Can I find deals for business class flights from George Bush Intcntl to Heathrow?

    Yes. Cheapflights offers flight deals from George Bush Intcntl to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to London Heathrow Airport?

    Currently, October is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to London Heathrow Airport (average of $668). Flying from Houston George Bush Intcntl Airport to London Heathrow Airport in June is currently the most expensive (average of $1,429). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Ilford
Dorking
Hounslow
Winchester
Croydon
Gatwick
Southend-on-Sea
Wembley
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Northampton
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Slough

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for George Bush Intcntl to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Hobby to Heathrow flights
George Bush Intcntl to Gatwick flights

Top 10 airlines flying from George Bush Intcntl to Heathrow

Discover the top 10 airlines that operate flights from George Bush Intcntl to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$101Average$783FlexibilityNo cancel feeOn-time62%
Air CanadaCheapest$521Average$892FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$523Average$873FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$535Average$846FlexibilityNo cancel feeOn-time70%
IberiaCheapest$557Average$794FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$572Average$759FlexibilityNo cancel feeOn-time71%
KLMCheapest$572Average$915FlexibilityNo cancel feeOn-time75%
FinnairCheapest$613Average$771FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$629Average$822FlexibilityNo cancel feeOn-time72%
LufthansaCheapest$697Average$988FlexibilityNo cancel feeOn-time76%

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