
Round-trip from | $875 (Delta) |
|---|---|
One-way from | $478 (Mytrip) |
Popular in | June |
Cheapest in | September |
Average price | $971 |
Fly from
Fly to
Route
Depart
Return
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Wed 9/30
1:15 pm-9:00 am
2 stops13h 45m
London Heathrow
Tue 10/6
6:30 am-6:59 pm
2 stops18h 29m
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Sun 10/25
5:20 pm-7:30 am
Nonstop9h 10m
London Heathrow
Thu 11/5
1:00 pm-9:39 pm
1 stop14h 39m
HoustonLondon
IAH - STN
IAHSTN
Houston George Bush Intcntl
Wed 7/29
9:10 pm-10:10 pm
1 stop19h 00m
London Stansted
Mon 11/9
10:50 am-7:10 pm
1 stop38h 20m
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Fri 9/18
12:55 pm-8:50 am
1 stop13h 55m
London Heathrow
Mon 9/21
7:15 pm-1:15 pm
1 stop24h 00m
HoustonLondon
IAH - LCY
IAHLCY
Houston George Bush Intcntl
Wed 8/5
3:25 pm-9:30 am
1 stop12h 05m
London City
Wed 8/12
8:15 pm-1:20 pm
1 stop23h 05m
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Wed 9/23
4:25 pm-7:45 am
Nonstop9h 20m
London Heathrow
Sat 10/3
9:30 am-5:50 pm
1 stop14h 20m
HoustonLondon
HOU - LHR
HOULHR
Houston Hobby
Mon 8/3
1:13 pm-6:25 am
1 stop11h 12m
London Heathrow
Thu 8/13
3:15 pm-10:46 pm
1 stop13h 31m
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Wed 8/5
10:21 am-7:55 am
2 stops15h 34m
London Heathrow
Mon 8/17
8:40 am-9:36 pm
2 stops18h 56m
HoustonLondon
IAH - LGW
IAHLGW
Houston George Bush Intcntl
Wed 8/5
3:55 pm-4:00 pm
1 stop18h 05m
London Gatwick
Mon 8/17
10:25 am-11:52 pm
2 stops19h 27m
HoustonLondon
IAH - LTN
IAHLTN
Houston George Bush Intcntl
Wed 8/5
10:00 am-8:45 pm
3 stops28h 45m
London Luton
Wed 8/12
8:35 pm-10:01 pm
3 stops31h 26m
The best time to book flights from Houston to London is 64 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, January is the cheapest month in which you can book a flight from Houston to London (average of $424). Flying from Houston to London in November is currently the most expensive (average of $1,955). 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.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Houston to London as you normally would.
About 23% of weekly flights between Houston and London have experienced delays in the past year, with the average delay time being 150 minutes.
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
Saturday 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, British Airways have had the lowest number of delays on this route, with just 18% of flights being delayed.
Food
Entertainment
Comfort
Boarding
Overall
Crew
Reviews
Anonymous,Apr 2026
HEL - KAO
Food
Entertainment
Comfort
Boarding
Overall
Crew
Reviews
Anonymous,Apr 2026
HEL - KAO
Food
Entertainment
Comfort
Boarding
Overall
Crew
Reviews
Anonymous,Apr 2026
HEL - KAO
Food
Entertainment
Comfort
Boarding
Overall
Crew
Reviews
Anonymous,Apr 2026
HEL - KAO
Food
Entertainment
Comfort
Boarding
Overall
Crew
Reviews
Anonymous,Apr 2026
HEL - KAO
Food
Entertainment
Comfort
Boarding
Overall
Crew
Reviews
Anonymous,Apr 2026
HEL - KAO
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$497 | Average$772 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$499 | Average$741 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$521 | Average$892 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$524 | Average$873 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$538 | Average$846 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$540 | Average$883 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$580 | Average$852 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$689 | Average$985 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$723 | Average$1,242 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$785 | Average$1,149 | FlexibilityNo cancel fee | On-time77% |