
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $710 (Kiwi.com) |
One-way from | $404 (Kiwi.com) |
Popular in | June |
Cheapest in | September |
Average price | $738 |
Good round-trip deal | $956 or less |
Good one-way deal | $454 or less |
Fly from
Fly to
Route
Depart
Return
HoustonLondon
IAH - STN
IAHSTN
Houston George Bush Intcntl
Mon 10/5
9:05 pm-10:10 pm
1 stop19h 05m
London Stansted
Sun 10/18
5:35 pm-7:10 pm
1 stop31h 35m
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Tue 8/4
10:00 am-10:00 am
1 stop18h 00m
London Heathrow
Tue 8/25
7:25 am-4:30 pm
1 stop15h 05m
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Wed 8/26
10:00 am-6:30 am
1 stop14h 30m
London Heathrow
Tue 9/1
7:25 am-4:30 pm
1 stop15h 05m
HoustonLondon
IAH - LGW
IAHLGW
Houston George Bush Intcntl
Tue 8/4
3:55 pm-9:25 am
1 stop11h 30m
London Gatwick
Tue 8/25
10:35 am-10:49 pm
2 stops18h 14m
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Wed 8/26
8:15 pm-11:35 am
Nonstop9h 20m
London Heathrow
Sun 9/6
7:25 am-4:30 pm
1 stop15h 05m
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Tue 8/25
4:35 pm-7:55 am
Nonstop9h 20m
London Heathrow
Sun 9/6
7:25 am-4:30 pm
1 stop15h 05m
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Sat 8/22
6:55 am-9:00 pm
2 stops32h 05m
London Heathrow
Fri 8/28
7:25 am-4:30 pm
1 stop15h 05m
HoustonLondon
IAH - LGW
IAHLGW
Houston George Bush Intcntl
Sun 9/13
9:25 am-10:00 am
1 stop18h 35m
London Gatwick
Fri 9/18
2:00 pm-11:56 am
1 stop27h 56m
HoustonLondon
IAH - LGW
IAHLGW
Houston George Bush Intcntl
Mon 5/11
3:50 pm-4:00 pm
1 stop18h 10m
London Gatwick
Mon 5/25
5:00 pm-1:35 pm
1 stop26h 35m
HoustonLondon
IAH - LHR
IAHLHR
Houston George Bush Intcntl
Fri 5/8
12:12 pm-6:55 am
1 stop12h 43m
London Heathrow
Fri 5/15
6:55 am-4:35 pm
1 stop15h 40m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | 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 | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*2 stars | |
| Price Accuracy- | Trust Score*1 star |
Booking 68 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, September is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to London (average of $101). Flying from Houston George Bush Intcntl Airport to London in June is currently the most expensive (average of $733). 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 decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
The most flights from IAH to LON are scheduled on a Monday (22 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (17 on average).
Boston (BOS) – chosen by Cheapflights users on 50% of 1-stop itineraries from Houston George Bush Intcntl Airport to London on Cheapflights.
Boston (BOS) is the most affordable 1-stop option, with an average round-trip price of $872.
Flights via Boston (BOS) have the shortest average one-way travel time for 1-stop routes: 12h 38m.
Flights via Toronto (YYZ) offer the fastest connection on this route, with an average layover time of 8h 58m.
About 23% 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 at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
Thursday 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 17% of flights being delayed.
Food
Entertainment
Boarding
Comfort
Overall
Crew
Reviews
Anonymous,Sep 2025
WAW - HEL
Food
Entertainment
Boarding
Comfort
Overall
Crew
Reviews
Anonymous,Sep 2025
WAW - HEL
Food
Entertainment
Boarding
Comfort
Overall
Crew
Reviews
Anonymous,Sep 2025
WAW - HEL
Food
Entertainment
Boarding
Comfort
Overall
Crew
Reviews
Anonymous,Sep 2025
WAW - HEL
Food
Entertainment
Boarding
Comfort
Overall
Crew
Reviews
Anonymous,Sep 2025
WAW - HEL
Food
Entertainment
Boarding
Comfort
Overall
Crew
Reviews
Anonymous,Sep 2025
WAW - HEL
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$101 | Average$268 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$499 | Average$689 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$521 | Average$892 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$525 | Average$866 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$539 | Average$828 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$581 | Average$847 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$587 | Average$741 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$613 | Average$767 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$697 | Average$890 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$723 | Average$1,655 | FlexibilityNo cancel fee | On-time78% |