Cheap flights from Houston (IAH) to London (LON)

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The best prices from Houston to London are usually found in January or April, booked 60 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

How to find the cheapest flight from
Houston (IAH) to London (LON)

All the information you need to plan the best IAH to LON flight in 2021: compare Houston to London flight prices with the expected peak season, weather and rainfall in London.
HO1 - LON
Price
$669 - $1,121
LON
Temperature
48.2 - 73.4 °F
LON
Precipitation
1.4 - 2.8 inches

Popular in

December

High demand for flights, 25% potential price rise

Cheapest in

January

Best time to find cheap flights, 20% potential price drop

Round-trip from

$669

From Houston to London

One-way from

$182

One-way flight from Houston to London

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Houston to London?

Travelers have found that booking a Monday departure is the best way to save up to 23% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

How far in advance should I book a flight from Houston to London?

To save up to 40% on this flight, we recommend booking at least 61 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Houston to London from $911 1-2 weeks out and tickets from $1,200 for flights departing within the next 72 hours.

When is the cheapest time to fly from Houston to London (HO1 - LON)?

One of the essential ways to save on airfare from Houston to London is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 20% on airfare.

Cheap flights from Houston to London in September, October 2021

The best prices found for IAH to LON flights for September, October
20 Oct - 26 Oct
$414pp
IAH
Houston George Bush Intcntl
American Airlines
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
American Airlines
   
2 STOPS
IAH
Houston George Bush Intcntl
16 Oct - 26 Oct
$417pp
IAH
Houston George Bush Intcntl
American Airlines
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
American Airlines
   
2 STOPS
IAH
Houston George Bush Intcntl
16 Oct - 26 Oct
$420pp
IAH
Houston George Bush Intcntl
American Airlines
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
American Airlines
   
2 STOPS
IAH
Houston George Bush Intcntl

Houston to London 2021 flight deals

Cheap flights to London from Houston found for this year
20 Oct - 26 Oct
$414pp
IAH
Houston George Bush Intcntl
American Airlines
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
American Airlines
   
2 STOPS
IAH
Houston George Bush Intcntl
16 Oct - 26 Oct
$417pp
IAH
Houston George Bush Intcntl
American Airlines
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
American Airlines
   
2 STOPS
IAH
Houston George Bush Intcntl
27 Nov - 15 Jan
$418pp
IAH
Houston George Bush Intcntl
Finnair
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Finnair
Non-Stop
IAH
Houston George Bush Intcntl

Non-stop flights to London from Houston

Save time with Houston to London direct flight deals
12 Jan - 19 Jan
$413pp
IAH
Houston George Bush Intcntl
Finnair
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Finnair
Non-Stop
IAH
Houston George Bush Intcntl
9 Jan - 16 Jan
$417pp
IAH
Houston George Bush Intcntl
British Airways
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
British Airways
Non-Stop
IAH
Houston George Bush Intcntl
7 Jan - 14 Jan
$418pp
IAH
Houston George Bush Intcntl
Finnair
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Finnair
Non-Stop
IAH
Houston George Bush Intcntl

Last minute flights from Houston to London

Late deals on round-trip flights to London from Houston, departing today and this week
26 Sep - 3 Oct
$588pp
IAH
Houston George Bush Intcntl
Delta
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Delta
 
1 STOP
IAH
Houston George Bush Intcntl
26 Sep - 3 Oct
$589pp
IAH
Houston George Bush Intcntl
Multiple Airlines
   
2 STOPS
STN
London Stansted
STN
London Stansted
Multiple Airlines
   
2 STOPS
IAH
Houston George Bush Intcntl
26 Sep - 3 Oct
$596pp
IAH
Houston George Bush Intcntl
Air Canada
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Air Canada
 
1 STOP
IAH
Houston George Bush Intcntl

One-way flights to London from Houston

The cheapest one-way flights from Houston to London
5:57 am - 6:00 am
Multiple Airlines
2 Stops
42h 03m
IAH - LHR
Multiple Airlines
$232
Kiwi.com
4:57 am - 11:35 am
Multiple Airlines
3 Stops
24h 38m
IAH - STN
Multiple Airlines
$182
Gotogate
4:57 am - 9:05 am
Multiple Airlines
3 Stops
22h 08m
IAH - STN
Multiple Airlines
$183
Gotogate

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Houston</span> to <span class="emphasized">London</span> flights.

Flight FAQs

From Houston to London

Which airlines flying from Houston to London have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Houston to London that may be offering flexible cancellation policies are United Airlines, British Airways, and Finnair. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Are flight prices decreasing from Houston to London due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Houston and London for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from Houston to London for under $500 on Cheapflights?

Yes, there are multiple flights from Houston to London for under $500. The cheapest flight booked recently is on American Airlines for just $414, but on average you can expect to pay $426.

Are there nonstop flights from Houston to London for under $500 on Cheapflights?

Cheapflights has at least 20 direct flights from Houston to London under $500. A good price for a nonstop flight from Houston to London is less than $480.

Are there last-minute flights available from Houston to London for under $600?

There are currently 20+ open flights from Houston to London within the next 7 days for less than $600.

What are the cheapest airlines flying from Houston to London round-trip?

Flying on American Airlines is currently your cheapest option to London, with prices starting at $414. Additional round-trip tickets that might be worth considering are offered by Iberia and British Airways, with the lowest prices starting at $416 and $425, respectively. Users have found that American Airlines is 50% cheaper than the other options available to this destination.

COVID Restrictions

View COVID Travel Restrictions for London, England

Do I need a COVID test to fly to London from Houston?

Information is based on travel restrictions from Houston to London

Most visitors from Houston need to provide a negative COVID-19 test result and/or quarantine to enter London.

COVID-19 testing requirements
Visitors from Houston must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to London.

Quarantine requirements
Visitors from Houston are not required to quarantine after entering London.

Documents
Mandatory passenger locator form - Submit the form any time in the 48 hours before arriving in the UK. Show the form when checking in your plane, train or ferry to the UK.

Managed quarantine package for Scotland - All travelers arriving directly to Scotland are required to book their Managed Quarantine Package prior to travel.

COVID-19 testing package - All travelers must book and pay for a COVID-19 Testing Package prior to travel to England and Scotland.


Do I need a test to fly back to Houston from London?

Returning to Houston from London

COVID-19 testing requirements
Visitors from London must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Houston.

Quarantine requirements
Visitors from London are not required to quarantine after entering Houston.

Hide COVID Travel Restrictions for London, England

Alternative routes for Houston to London

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for London

Things to know before you go - useful duration and weather info for your trip from Houston to London.
Today's exchange rate
$1 = £0.73
Flight duration from Houston to London
9h 55m
Average temperature for September in London
68.0 °F
Avg rainfall for September in London
1.9 ″

Airports servicing Houston

Airports servicing London

Gatwick (LGW)
Stansted (STN)
London City (LCY)
Luton (LTN)
Southend (SEN)

Top 10 airlines flying from Houston to London

The chart below displays the airlines Cheapflights users traveling from Houston to London choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Brussels Airlines
$577 $785 No cancel fee N/A
Virgin Atlantic
$748 $814 No cancel fee 72%
Turkish Airlines
$704 $859 No cancel fee 77%
Iberia
$430 $882 No cancel fee 77%
Air France
$543 $940 No cancel fee 77%
Lufthansa
$628 $970 No cancel fee 76%
SWISS
$726 $994 No cancel fee 79%
Austrian Airlines
$635 $994 No cancel fee 78%
KLM
$577 $999 No cancel fee 75%
Air Canada
$625 $1,077 No cancel fee 67%

Hourly flight availability from Houston to London

See what time of day planes typically take off from Houston towards London.
Evening 6 PM to midnight 67% of IAH to LON departures
Afternoon Noon to 6 PM 32% of IAH to LON departures
Early morning Midnight to 6 AM 1% of IAH to LON departures
Morning 6 AM to noon 0% of IAH to LON departures
Midnight
6 AM
Noon
6 PM
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