Nonstop flight route between Southend, Essex (near London) United Kingdom and Roundup, Montana, United States:
Departure Airport:

Arrival Airport:

Distance from SEN to RPX:
Share this route:
Jump to:
- About this route
- SEN Airport Information
- RPX Airport Information
- Facts about SEN
- Facts about RPX
- Map of Nearest Airports to SEN
- List of Nearest Airports to SEN
- Map of Furthest Airports from SEN
- List of Furthest Airports from SEN
- Map of Nearest Airports to RPX
- List of Nearest Airports to RPX
- Map of Furthest Airports from RPX
- List of Furthest Airports from RPX
About this route:
A direct, nonstop flight between London Southend Airport (SEN), Southend, Essex (near London) United Kingdom and Roundup Airport (RPX), Roundup, Montana, United States would travel a Great Circle distance of 4,472 miles (or 7,197 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 Southend Airport and Roundup Airport, 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 Southend Airport and Roundup Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | SEN / EGMC |
Airport Name: | London Southend Airport |
Location: | Southend, Essex (near London) United Kingdom |
GPS Coordinates: | 51°34'13"N by 0°41'35"E |
Area Served: | Southend, Essex and east London areas |
Operator/Owner: | Stobart Group |
Airport Type: | Public |
Elevation: | 55 feet (17 meters) |
# of Runways: | 1 |
View all routes: | Routes from SEN |
More Information: | SEN Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | RPX / KRPX |
Airport Name: | Roundup Airport |
Location: | Roundup, Montana, United States |
GPS Coordinates: | 46°28'30"N by 108°32'35"W |
Area Served: | Roundup, Montana |
Operator/Owner: | City of Roundup & Musselshell County |
Airport Type: | Public |
Elevation: | 3490 feet (1,064 meters) |
# of Runways: | 2 |
View all routes: | Routes from RPX |
More Information: | RPX Maps & Info |
Facts about London Southend Airport (SEN):
- The closest airport to London Southend Airport (SEN) is Rochester Airport (RCS), which is located only 17 miles (28 kilometers) SSW of SEN.
- In 1946, the airfield was decommissioned from military use and civil aviation returned in 1947, as did the Southend Municipal Airport name.
- Because of London Southend Airport's relatively low elevation of 55 feet, planes can take off or land at London Southend 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.
- Annual passenger traffic first peaked in 1967, at 692,000.
- The airport is served by buses operated by Arriva Southend from the airport entrance to Southend, Rochford, Ashingdon, Hawkwell, Hockley, Eastwood and Rayleigh.
- Companies located at and around the airport employ over 1,000 skilled workers, providing services such as engineering and maintenance work on airliners, including re-spraying, refurbishment, upgrades to avionics, manufacture of aircraft seats and the installation of new or hush-kitted engines.
- London Southend Airport handled 969,912 passengers last year.
- The furthest airport from London Southend Airport (SEN) is Chatham Islands (CHT), which is located 11,885 miles (19,126 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- London Southend Airport (SEN) currently has only 1 runway.
Facts about Roundup Airport (RPX):
- Roundup Airport (RPX) has 2 runways.
- The furthest airport from Roundup Airport (RPX) is Sir Gaëtan Duval Airport (RRG), which is located 10,535 miles (16,954 kilometers) away in Rodrigues Island, Mauritius.
- The closest airport to Roundup Airport (RPX) is Billings Logan International Airport (BIL), which is located 46 miles (74 kilometers) S of RPX.