For a smooth departure from Heathrow, ensure all liquids are in one small bag to avoid long security checks.

Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $771 (Mytrip) |
One-way from | $374 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $940 |
Good round-trip deal | $856 or less |
Good one-way deal | $797 or less |
Fly from
Fly to
Route
Depart
Return
Price
LondonHouston
STN - IAH
STNIAH
London Stansted
lun. 3/9
8:05 pm-3:10 pm
2 stops24h 05m
Houston George Bush Intcntl
mar. 3/17
5:30 pm-6:25 pm
2 stops19h 55m
LondonHouston
STN - IAH
STNIAH
London Stansted
sáb. 2/21
10:05 pm-12:57 am
3 stops32h 52m
Houston George Bush Intcntl
dom. 3/1
7:05 am-9:50 am
2 stops20h 45m
LondonHouston
LGW - IAH
LGWIAH
London Gatwick
vie. 11/28
2:00 pm-12:13 pm
1 stop28h 13m
Houston George Bush Intcntl
lun. 12/1
8:29 am-10:00 am
1 stop19h 31m
LondonHouston
LHR - IAH
LHRIAH
London Heathrow
jue. 3/5
10:20 am-11:39 pm
2 stops19h 19m
Houston George Bush Intcntl
lun. 3/9
3:40 pm-5:40 pm
2 stops21h 00m
LondonHouston
LHR - IAH
LHRIAH
London Heathrow
mar. 3/3
6:40 am-11:39 pm
2 stops22h 59m
Houston George Bush Intcntl
mié. 3/11
4:00 pm-6:30 pm
2 stops21h 30m
LondonHouston
STN - IAH
STNIAH
London Stansted
dom. 2/22
7:40 am-11:59 pm
3 stops22h 19m
Houston George Bush Intcntl
dom. 3/1
7:05 am-9:50 am
2 stops20h 45m
LondonHouston
STN - IAH
STNIAH
London Stansted
lun. 1/12
1:55 pm-1:55 pm
2 stops30h 00m
Houston George Bush Intcntl
lun. 1/26
4:05 pm-4:55 pm
2 stops18h 50m
LondonHouston
LGW - IAH
LGWIAH
London Gatwick
jue. 12/25
2:00 pm-10:36 pm
1 stop14h 36m
Houston George Bush Intcntl
vie. 1/16
8:19 pm-10:05 am
1 stop31h 46m
LondonHouston
STN - IAH
STNIAH
London Stansted
mié. 12/10
7:40 am-7:04 am
3 stops29h 24m
Houston George Bush Intcntl
vie. 12/12
5:25 pm-8:00 pm
2 stops20h 35m
LondonHouston
LHR - IAH
LHRIAH
London Heathrow
jue. 12/11
6:00 pm-9:44 pm
1 stop33h 44m
Houston George Bush Intcntl
sáb. 12/13
8:23 pm-9:40 am
1 stop31h 17m
| 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 Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars |
To ensure you get the cheapest price possible for a flight from London to Houston George Bush Intcntl Airport, you should look to book at least 77 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Currently, February is the cheapest month in which you can book a flight from London to Houston George Bush Intcntl Airport (average of $668). Flying from London to Houston George Bush Intcntl Airport in July is currently the most expensive (average of $906). 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.
It’s optimal to fly from London to Houston George Bush Intcntl Airport in the afternoon. By choosing this option you can save up to 44% on the cost of your flight, compared to a flight in the evening.
The most flights from LON to IAH are scheduled on a Monday (22 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (17 on average).
Entertainment
Crew
Food
Overall
Boarding
Comfort
Reviews
Tim,Sep 2025
LHR - IAD
Entertainment
Crew
Food
Overall
Boarding
Comfort
Reviews
Tim,Sep 2025
LHR - IAD
Entertainment
Crew
Food
Overall
Boarding
Comfort
Reviews
Tim,Sep 2025
LHR - IAD
Entertainment
Crew
Food
Overall
Boarding
Comfort
Reviews
Tim,Sep 2025
LHR - IAD
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$652 | Average$1,074 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$768 | Average$1,013 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$803 | Average$1,217 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$825 | Average$1,162 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$833 | Average$1,037 | FlexibilityNo cancel fee | On-time71% |