Nonstop flight route between London, England, United Kingdom and Portland, Maine, United States:
Departure Airport:

Arrival Airport:

Distance from LHR to PWM:
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- About this route
- LHR Airport Information
- PWM Airport Information
- Facts about LHR
- Facts about PWM
- Map of Nearest Airports to LHR
- List of Nearest Airports to LHR
- Map of Furthest Airports from LHR
- List of Furthest Airports from LHR
- Map of Nearest Airports to PWM
- List of Nearest Airports to PWM
- Map of Furthest Airports from PWM
- List of Furthest Airports from PWM
About this route:
A direct, nonstop flight between London Heathrow Airport (LHR), London, England, United Kingdom and Portland International Jetport (PWM), Portland, Maine, United States would travel a Great Circle distance of 3,175 miles (or 5,110 kilometers).
A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the large distance between London Heathrow Airport and Portland International Jetport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between London Heathrow Airport and Portland International Jetport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | LHR / EGLL |
Airport Name: | London Heathrow Airport |
Location: | London, England, United Kingdom |
GPS Coordinates: | 51°28'38"N by 0°27'41"W |
Area Served: | London, United Kingdom |
Operator/Owner: | Heathrow Airport Holdings |
Airport Type: | Public |
Elevation: | 83 feet (25 meters) |
# of Runways: | 2 |
View all routes: | Routes from LHR |
More Information: | LHR Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | PWM / KPWM |
Airport Name: | Portland International Jetport |
Location: | Portland, Maine, United States |
GPS Coordinates: | 43°38'45"N by 70°18'33"W |
Area Served: | Portland, Maine |
Airport Type: | Public |
Elevation: | 76 feet (23 meters) |
# of Runways: | 2 |
View all routes: | Routes from PWM |
More Information: | PWM Maps & Info |
Facts about London Heathrow Airport (LHR):
- With only two runways, operating at over 98% of their capacity, Heathrow has little room for more flights, although the increasing use of larger aircraft such as the Airbus A380 will allow some increase in passenger numbers.
- The furthest airport from London Heathrow Airport (LHR) is Chatham Islands (CHT), which is located 11,875 miles (19,112 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- The closest airport to London Heathrow Airport (LHR) is RAF Northolt (NHT), which is located only 6 miles (9 kilometers) NNE of LHR.
- London Heathrow Airport (LHR) has 2 runways.
- Air traffic controllers at Heathrow Approach Control then guide the aircraft to their final approach, merging aircraft from the four holds into a single stream of traffic, sometimes as close as 2.5 nautical miles apart.
- As the airport is west of London and as its runways run east–west, an airliner's landing approach is usually directly over the conurbation of London when the wind is from the west.
- Of Heathrow's 69 million passengers in 2011, 7% were bound for UK destinations, 41% were short-haul international travellers and 52% were long-haul.
- Because of London Heathrow Airport's relatively low elevation of 83 feet, planes can take off or land at London Heathrow Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
Facts about Portland International Jetport (PWM):
- In 1982 PWM got its first nonstop beyond New York, when Delta tried a 727 to Cincinnati for a year or so.
- On September 1, 2005 Delta Air Lines ended mainline service to PWM.
- The Jetport began construction on its expanded terminal as well as several infrastructure improvements in 2010.
- The present airport started to take shape in the 1950s.
- The furthest airport from Portland International Jetport (PWM) is Margaret River Airport (MGV), which is located 11,705 miles (18,838 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Portland International Jetport (PWM) is Naval Air Station Brunswick (NHZ), which is located 25 miles (40 kilometers) NE of PWM.
- Because of Portland International Jetport's relatively low elevation of 76 feet, planes can take off or land at Portland International Jetport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
- Portland International Jetport (PWM) has 2 runways.
- That same year, regional Ransome Airlines, doing business as Delta Connection, began a route between Portland and Boston.
- The airport is the busiest in the state.