Houston (IAH) to London (LHR) flights
An economy award from Houston (IAH) to London (LHR) starts at 24,000 miles one way with Qatar Airways Privilege Club on British Airways, plus taxes and fees from $220.60. 2 airlines fly nonstop from Houston (IAH) to London (LHR): British Airways and United Airlines. The two airports are 4,824 miles (7,764 km) apart. British Airways is in oneworld and United Airlines is in Star Alliance. There are also 47 ways to fly it with one stop, through Montreal, Cincinnati and Toronto and more.
How many miles IAH to LHR costs
Economy, one way, on the nonstop flights, from the Award Flight Pricer's award charts. Ranges run off-peak to peak; "from" is the floor of a dynamic price.
| Program | Economy | Taxes and fees |
|---|---|---|
| Qatar Airways Privilege ClubOn British Airways | 24,000 | $220.60–1,105.60 |
| Cathay Pacific Asia MilesOn British Airways | 27,000 | $229–483.50 |
| Alaska Atmos RewardsOn British Airways | 27,500 | $200.60–825.60 |
| ANA Mileage ClubOn United Airlines | 27,500 | $5.60 |
| American AAdvantageOn British Airways | 30,000 | $180.60–805.60 |
| Avianca LifeMilesOn United Airlines | 30,000 | $54 |
| Emirates SkywardsOn United Airlines | 32,000 | $5.60–355.60 |
| Singapore Airlines KrisFlyerOn United Airlines | 32,500 | $5.60 |
| British Airways ClubOn British Airways | 33,000–38,500 | $120.60–1,105.60 |
| Iberia ClubOn British Airways | 33,000–38,500 | $200.60–1,105.60 |
| EVA Air Infinity MileageLandsOn United Airlines | 34,000 | $5.60 |
| JAL Mileage BankOn British Airways | 37,000 | $205.60–705.60 |
Business and first class prices, and 5 more programs, are in the Award Flight Pricer. Chart prices need award space on your date, so search it before you transfer points.
Compare every program in the Award Flight PricerAirlines flying nonstop from IAH to LHR
- British Airwaysoneworld · bookable with 9 programsWho books it
- United AirlinesStar Alliance · bookable with 13 programsWho books it
Book IAH to LHR with points
Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.
- Air Canada AeroplanBooks United Airlines
- Air New Zealand AirpointsBooks United Airlines
- Alaska Atmos RewardsBooks British Airways
- American AAdvantageBooks British Airways
- ANA Mileage ClubBooks United Airlines
- Avianca LifeMilesBooks United Airlines
- British Airways ClubBooks British Airways
- Cathay Pacific Asia MilesBooks British Airways
- Emirates SkywardsBooks United Airlines
- EVA Air Infinity MileageLandsBooks United Airlines
- Finnair PlusBooks British Airways
- Iberia ClubBooks British Airways
- JAL Mileage BankBooks British Airways
- JetBlue TrueBlueBooks United Airlines
- Lufthansa Miles & MoreBooks United Airlines
- Qantas Frequent FlyerBooks British Airways
- Qatar Airways Privilege ClubBooks British Airways
- Singapore Airlines KrisFlyerBooks United Airlines
- TAP Miles&GoBooks United Airlines
- Thai Royal Orchid PlusBooks United Airlines
- Turkish Airlines Miles&SmilesBooks United Airlines
- United MileagePlusBooks United Airlines
IAH to LHR with one stop
47 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Montreal (YUL)Air Canada the whole way
- Via Cincinnati (CVG)United Airlines, then British Airways
- Via Toronto (YYZ)Air Canada the whole way
- Via Pittsburgh (PIT)United Airlines, then British Airways
- Via Nashville (BNA)United Airlines, then British Airways
- Via Detroit (DTW)Delta Air Lines the whole way
- Via Boston (BOS)JetBlue Airways the whole way
+2 - Via New York (EWR)United Airlines the whole way
- Via Dulles (IAD)United Airlines the whole way
- Via Saint Louis (STL)United Airlines, then British Airways
- Via New York (JFK)JetBlue Airways the whole way
+2 - Via Baltimore (BWI)United Airlines and Frontier Airlines, then British Airways
- Via Philadelphia (PHL)American Airlines the whole way
- Via Chicago (ORD)American Airlines and United Airlines the whole way
- Via Atlanta (ATL)Delta Air Lines the whole way
IAH to LHR: common questions
How many miles does IAH to LHR cost?
In economy it starts at 24,000 miles one way with Qatar Airways Privilege Club on British Airways, plus taxes and fees from $220.60. Next cheapest: Cathay Pacific Asia Miles (27,000), Alaska Atmos Rewards (27,500) and ANA Mileage Club (27,500). These are award chart prices from the Award Flight Pricer. Programs that price dynamically can cost more on busy dates, so check yours before you transfer points. Business and first class prices are in the pricer too.
Which airlines fly nonstop from IAH to LHR?
British Airways (oneworld) and United Airlines (Star Alliance) fly nonstop from Houston (IAH) to London (LHR).
How far is Houston from London by plane?
Houston (IAH) and London (LHR) are 4,824 miles (7,764 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
Which points programs can book IAH to LHR award flights?
22 programs can book at least one of the nonstop airlines: Air Canada Aeroplan, Air New Zealand Airpoints, Alaska Atmos Rewards, American AAdvantage, ANA Mileage Club, Avianca LifeMiles, British Airways Club, Cathay Pacific Asia Miles and 14 more. Which flights each can book depends on its partners, so check the airline before you transfer points.
Where can I connect between Houston and London?
The most direct connections are through Montreal (YUL), Cincinnati (CVG), Toronto (YYZ), Pittsburgh (PIT) and Nashville (BNA). On 28 of them the same airline flies both flights, for example Air Canada through Montreal.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.