Check the security checkpoint wait times on the IAH website to save time before your flight.

Most accurate provider | Mytrip 3 stars |
|---|---|
Most trusted provider | Mytrip 3 stars |
Round-trip from | $567 (lastminute.com) |
One-way from | $338 (Kiwi.com) |
Popular in | June |
Cheapest in | October |
Average price | $733 |
Good round-trip deal | $696 or less |
Good one-way deal | $403 or less |
Fly from
Fly to
Route
Depart
Return
Price
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
mer 11/12
12:30 pm-6:20 am
1 stop11h 50m
London Heathrow
mer 11/19
11:30 am-11:57 pm
2 stops18h 27m
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
lun 1/12
12:20 pm-8:05 am
2 stops13h 45m
London Heathrow
ven 2/20
6:30 am-1:30 pm
1 stop13h 00m
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
lun 1/26
4:06 pm-9:40 pm
2 stops23h 34m
London Heathrow
mar 2/3
6:40 am-11:39 pm
2 stops22h 59m
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
mer 1/7
10:35 am-7:50 am
1 stop15h 15m
London Heathrow
mer 1/14
9:00 am-11:58 pm
2 stops20h 58m
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
mer 11/19
3:30 pm-9:00 am
1 stop11h 30m
London Heathrow
gio 11/27
6:20 am-1:55 pm
1 stop13h 35m
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
mer 12/3
12:35 pm-9:00 am
2 stops14h 25m
London Heathrow
lun 12/8
5:35 pm-1:55 pm
1 stop26h 20m
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
gio 11/27
12:59 pm-8:45 am
1 stop13h 46m
London Heathrow
gio 12/4
6:20 am-1:55 pm
1 stop13h 35m
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
mer 11/12
7:05 pm-10:15 am
Nonstop9h 10m
London Heathrow
mer 11/19
12:05 pm-4:50 pm
Nonstop10h 45m
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
gio 1/15
4:06 pm-6:30 pm
2 stops20h 24m
London Heathrow
lun 1/19
7:05 am-11:58 pm
3 stops22h 53m
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
ven 11/21
2:59 pm-5:30 pm
3 stops44h 31m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*1 star |
The best time to book flights from Houston George Bush Intcntl Airport to London Heathrow Airport is 18 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.
Currently, November is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to London Heathrow Airport (average of $509). Flying from Houston George Bush Intcntl Airport to London Heathrow Airport in June is currently the most expensive (average of $916). 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.
Unlike in the evening, when flights are generally more expensive, you can save up to 12% on flights from Houston George Bush Intcntl Airport to London Heathrow Airport by exploring options for tickets at noon.
Travelers seeking maximum savings on their Houston George Bush Intcntl Airport to London Heathrow Airport flight should consider departing on Saturday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
About 27% of weekly flights between Houston and London have experienced delays in the past year, with the average delay time being 144 minutes.
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Over the last year, American Airlines have had the lowest number of delays on this route, with just 20% of flights being delayed.
Food
Entertainment
Comfort
Crew
Boarding
Overall
Reviews
Matt,May 2025
LHR - MIA
Food
Entertainment
Comfort
Crew
Boarding
Overall
Reviews
Matt,May 2025
LHR - MIA
Food
Entertainment
Comfort
Crew
Boarding
Overall
Reviews
Matt,May 2025
LHR - MIA
Food
Entertainment
Comfort
Crew
Boarding
Overall
Reviews
Matt,May 2025
LHR - MIA
Food
Entertainment
Comfort
Crew
Boarding
Overall
Reviews
Matt,May 2025
LHR - MIA
Food
Entertainment
Comfort
Crew
Boarding
Overall
Reviews
Matt,May 2025
LHR - MIA
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$101 | Average$783 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$476 | Average$822 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$521 | Average$709 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$566 | Average$890 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$571 | Average$907 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$572 | Average$866 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$580 | Average$775 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$582 | Average$739 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$631 | Average$1,049 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$644 | Average$1,294 | FlexibilityNo cancel fee | On-time78% |