Check the IAH website for security wait times to ensure a smooth departure.

Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $599 (Scandinavian Airlines) |
One-way from | $334 (Kiwi.com) |
Popular in | June |
Cheapest in | October |
Average price | $723 |
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
Mon 2/9
9:54 am-6:30 pm
2 stops26h 36m
London Heathrow
Mon 2/16
10:20 am-11:39 pm
2 stops19h 19m
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Tue 12/30
6:27 am-7:05 am
1 stop18h 38m
London Heathrow
Fri 1/9
1:05 pm-11:56 pm
2 stops16h 51m
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Mon 2/9
7:05 am-7:50 am
1 stop18h 45m
London Heathrow
Mon 2/16
2:45 pm-1:55 pm
1 stop29h 10m
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Tue 12/9
12:10 pm-7:10 am
1 stop13h 00m
London Heathrow
Fri 12/19
8:30 am-6:15 pm
1 stop15h 45m
HoustonLondon
IAH - LTN
IAHLTN
Houston George Bush Intcntl
Tue 12/2
11:55 am-11:10 pm
3 stops29h 15m
London Luton
Mon 12/8
2:30 pm-2:35 pm
2 stops30h 05m
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Mon 3/16
4:00 pm-5:40 pm
2 stops20h 40m
London Heathrow
Thu 3/19
6:40 am-11:59 pm
2 stops22h 19m
HoustonLondon
IAH - LTN
IAHLTN
Houston George Bush Intcntl
Wed 11/26
12:30 pm-10:20 pm
2 stops27h 50m
London Luton
Tue 12/2
8:50 pm-9:39 pm
3 stops30h 49m
HoustonLondon
IAH - STN
IAHSTN
Houston George Bush Intcntl
Wed 12/10
12:10 pm-10:40 pm
2 stops28h 30m
London Stansted
Tue 12/16
7:30 am-9:39 pm
2 stops20h 09m
HoustonLondon
IAH - LCY
IAHLCY
Houston George Bush Intcntl
Mon 12/8
3:30 pm-9:30 am
1 stop12h 00m
London City
Wed 12/24
6:55 pm-1:30 pm
1 stop24h 35m
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Mon 12/1
3:50 pm-6:50 am
Nonstop9h 00m
London Heathrow
Sun 12/7
3:25 pm-8:00 pm
Nonstop10h 35m
| 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*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
Booking 16 days in advance of your planned departure date is, on average, the best time to get cheap flights from Houston George Bush Intcntl Airport to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, October is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to London (average of $233). Flying from Houston George Bush Intcntl Airport to London in June is currently the most expensive (average of $914). 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.
When flying from Houston George Bush Intcntl Airport to London, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 23% versus a flight in the afternoon.
Travelers seeking maximum savings on their Houston George Bush Intcntl Airport to London 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.
The most flights from IAH to LON 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).
Miami (MIA) – chosen by Cheapflights users on 50% of 1-stop itineraries from Houston George Bush Intcntl Airport to London on Cheapflights.
Miami (MIA) is the most affordable 1-stop option, with an average round-trip price of $765.
Flights via Miami (MIA) have the shortest average one-way travel time for 1-stop routes: 12h 22m.
Flights via Boston (BOS) offer the fastest connection on this route, with an average layover time of 11h 28m.
Entertainment
Comfort
Crew
Overall
Boarding
Food
Reviews
Rowland,Dec 2024
HEL - HKG
Entertainment
Comfort
Crew
Overall
Boarding
Food
Reviews
Rowland,Dec 2024
HEL - HKG
Entertainment
Comfort
Crew
Overall
Boarding
Food
Reviews
Rowland,Dec 2024
HEL - HKG
Entertainment
Comfort
Crew
Overall
Boarding
Food
Reviews
Rowland,Dec 2024
HEL - HKG
Entertainment
Comfort
Crew
Overall
Boarding
Food
Reviews
Rowland,Dec 2024
HEL - HKG
Entertainment
Comfort
Crew
Overall
Boarding
Food
Reviews
Rowland,Dec 2024
HEL - HKG
| 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$551 | Average$766 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$566 | Average$890 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$571 | Average$907 | FlexibilityNo cancel fee | On-time69% | |
| 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% |