Nonstop flight route between Romulus (near Detroit), Michigan, United States and Portsmouth, New Hampshire, United States:
Departure Airport:

Arrival Airport:

Distance from DTW to PSM:
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- About this route
- DTW Airport Information
- PSM Airport Information
- Facts about DTW
- Facts about PSM
- Map of Nearest Airports to DTW
- List of Nearest Airports to DTW
- Map of Furthest Airports from DTW
- List of Furthest Airports from DTW
- Map of Nearest Airports to PSM
- List of Nearest Airports to PSM
- Map of Furthest Airports from PSM
- List of Furthest Airports from PSM
About this route:
A direct, nonstop flight between Detroit Metropolitan Wayne County Airport (DTW), Romulus (near Detroit), Michigan, United States and Portsmouth International Airport at Pease (PSM), Portsmouth, New Hampshire, United States would travel a Great Circle distance of 639 miles (or 1,028 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 relatively short distance between Detroit Metropolitan Wayne County Airport and Portsmouth International Airport at Pease, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | DTW / KDTW |
Airport Name: | Detroit Metropolitan Wayne County Airport |
Location: | Romulus (near Detroit), Michigan, United States |
GPS Coordinates: | 42°12'44"N by 83°21'11"W |
Area Served: | Detroit, Michigan |
Operator/Owner: | Wayne County, Michigan |
Airport Type: | Public |
Elevation: | 645 feet (197 meters) |
# of Runways: | 6 |
View all routes: | Routes from DTW |
More Information: | DTW Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | PSM / KPSM |
Airport Name: | Portsmouth International Airport at Pease |
Location: | Portsmouth, New Hampshire, United States |
GPS Coordinates: | 43°4'41"N by 70°49'23"W |
Area Served: | Portsmouth, New Hampshire |
Operator/Owner: | Pease Development Authority |
Airport Type: | Public / Military |
Elevation: | 100 feet (30 meters) |
# of Runways: | 1 |
View all routes: | Routes from PSM |
More Information: | PSM Maps & Info |
Facts about Detroit Metropolitan Wayne County Airport (DTW):
- Because of Detroit Metropolitan Wayne County Airport's relatively low elevation of 645 feet, planes can take off or land at Detroit Metropolitan Wayne County 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.
- The airport serves as Delta Air Lines' second-busiest hub.
- Detroit Metropolitan Wayne County Airport (DTW) has 6 runways.
- Republic Airlines began hub operations in 1984, and its merger with Northwest Airlines in 1986 expanded the hub.
- The Smith Terminal's thirty-two gates originally housed Northwest Orient Airlines, Allegheny Airlines, Eastern Airlines, and Pan-Am, among others.
- On January 29, 2010, the North Terminal was named winner of the "Build Michigan" award project.
- The B and C concourses are connected to the main terminal building and the A Concourse by a pedestrian walkway under the Airport ramp.
- The furthest airport from Detroit Metropolitan Wayne County Airport (DTW) is Margaret River Airport (MGV), which is located 11,285 miles (18,161 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Detroit Metropolitan Wayne County Airport (DTW) is Willow Run Airport (YIP) (YIP), which is located only 9 miles (15 kilometers) W of DTW.
- The Airport Authority's long-term plans include an airport rail system, a new runway, and terminal expansions.
Facts about Portsmouth International Airport at Pease (PSM):
- The airport is located within the Pease International Tradeport, a result of the ongoing redevelopment of the former Pease Air Force Base which was closed under Base Realignment and Closure Commission action in the late 1980s and early 1990s.
- Pease was one of 7 Launch Abort Sites and one of 18 Emergency Landing Sites for NASA space shuttle orbiters.
- The airport served as a hub for Pan Am from 1998 until 2005, when all mainline Pan Am flights at the airport were suspended.
- Because of Portsmouth International Airport at Pease's relatively low elevation of 100 feet, planes can take off or land at Portsmouth International Airport at Pease 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.
- The furthest airport from Portsmouth International Airport at Pease (PSM) is Margaret River Airport (MGV), which is located 11,729 miles (18,875 kilometers) away in Margaret River, Western Australia, Australia.
- Portsmouth International Airport at Pease (PSM) currently has only 1 runway.
- The closest airport to Portsmouth International Airport at Pease (PSM) is Sanford Seacoast Regional Airport (SFM), which is located 23 miles (36 kilometers) NNE of PSM.