Cheap flights from London to Houston from $1,233 LCY, LGW, LHR, LTN, STN → IAH
London City Airport (LCY), London Gatwick Airport (LGW), London Heathrow Airport (LHR), London Luton Airport (LTN), Stansted Airport (STN) → George Bush Intercontinental Airport (IAH)
The cheapest return found recently is $1,233 with BA Cityflyer, 20 Dec – 12 Jan 2027, found 2 days ago.
- Cheapest return found recently
- $1,233, 20 Dec to 12 Jan 2027
- Usual return price
- $1,037 to $1,370
- Cheapest month to fly
- November 2026, return fares from $976 found in the last 7 days
Return
The cheapest return fare on each of 4 departure dates is usually $1,037 to $1,370.
Cheapest return found recently
$1,233
20 Dec – 12 Jan 2027 · BA Cityflyer
London City Airport (LCY) → George Bush Intercontinental Airport (IAH)
Leaves 7:40 p.m. · Return leaves 3:25 p.m. · 54 h 51 min of travel, both ways together
out 2 stops, back 2 stops
found 2 days ago
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$1,233 20 Dec – 12 Jan 2027found 2 days agoSee prices for these dates
$976 27 Nov – 13 Decfound 7 days agoSee prices for these dates
What have prices looked like?
Over 44 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $662 to $1,407.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 4 departure dates from 27 Nov to 9 Apr 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 23-night return fares leaving within 3 days of 20 Dec to compare.
Every date we hold
8 fares on 4 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 27 Nov – 13 Dec | $976 | American Airlines | London Heathrow Airport (LHR) → George Bush Intercontinental Airport (IAH) | out nonstop, back 1 stop | found 7 days ago | See prices for these dates |
| 20 Dec – 12 Jan 2027 | $1,233 | BA Cityflyer | London City Airport (LCY) → George Bush Intercontinental Airport (IAH) | out 2 stops, back 2 stops | found 2 days ago | See prices for these dates |
| 23 Dec – 12 Jan 2027 | $1,782 | BA Cityflyer | London City Airport (LCY) → George Bush Intercontinental Airport (IAH) | out 2 stops, back 2 stops | found 2 days ago | See prices for these dates |
| 9 Apr 2027 – 19 Apr 2027 | $1,057 | Air Canada | London Heathrow Airport (LHR) → George Bush Intercontinental Airport (IAH) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
Which month looks cheapest?
November 2026 is the cheapest month — from $976.
Airlines on the cheapest dates: BA Cityflyer, American Airlines, Air Canada.
Premium cabin fares from London to Houston
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 20 Dec – 12 Jan 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for London to Houston?
Return
Fares 30 to 59 days before departure were typically 38% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 11 Nov (44 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $1,085 | $930 | +60% | 9 |
| 7–13 days | $938 | $930 | +38% | 13 |
| 14–29 days | $938 | $704 | +38% | 13 |
| 30–59 days | $678 | $662 | Cheapest seen | 16 |
| 60–89 days | $991 | $887 | +46% | 20 |
| 180+ days | $958 | $958 | +41% | 8 |
Live price for these dates
The cheapest return found recently is for 20 Dec – 12 Jan 2027. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from London to Houston?
The cheapest return found recently is $1,233 with BA Cityflyer, 20 Dec to 12 Jan 2027, found 2 days ago. The cheapest return we hold, of any age, is $976 with American Airlines, 27 Nov to 13 Dec, found 7 days ago. The cheapest return fare on each of 4 departure dates is usually $1,037 to $1,370.
What is the cheapest month to fly from London to Houston?
November 2026 is the cheapest month for a return, from $976, 27 Nov to 13 Dec, found 7 days ago.
How far ahead should I book a flight from London to Houston?
In 44 days of prices between 24 Sept and 11 Nov, return fares 30 to 59 days before departure were typically 38% lower than 0 to 6 days before departure.
Which airlines have the cheapest flights from London to Houston?
Between 27 Nov and 9 Apr 2027, BA Cityflyer has the cheapest return on 2 of the 4 departure dates we hold, American Airlines on 1 and Air Canada on 1.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work