Nonstop flight route between Trenton, New Jersey, United States and Cahokia, Illinois (near St. Louis), United States:
Departure Airport:

Arrival Airport:

Distance from TTN to CPS:
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- About this route
- TTN Airport Information
- CPS Airport Information
- Facts about TTN
- Facts about CPS
- Map of Nearest Airports to TTN
- List of Nearest Airports to TTN
- Map of Furthest Airports from TTN
- List of Furthest Airports from TTN
- Map of Nearest Airports to CPS
- List of Nearest Airports to CPS
- Map of Furthest Airports from CPS
- List of Furthest Airports from CPS
About this route:
A direct, nonstop flight between Trenton-Mercer Airport (TTN), Trenton, New Jersey, United States and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 826 miles (or 1,330 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 Trenton-Mercer Airport and St. Louis Downtown Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | TTN / KTTN |
Airport Name: | Trenton-Mercer Airport |
Location: | Trenton, New Jersey, United States |
GPS Coordinates: | 40°16'36"N by 74°48'47"W |
Area Served: | Trenton, New Jersey |
Operator/Owner: | County of Mercer |
Airport Type: | Public |
Elevation: | 212 feet (65 meters) |
# of Runways: | 2 |
View all routes: | Routes from TTN |
More Information: | TTN Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | CPS / KCPS |
Airport Name: | St. Louis Downtown Airport |
Location: | Cahokia, Illinois (near St. Louis), United States |
GPS Coordinates: | 38°34'14"N by 90°9'21"W |
Area Served: | Greater St. Louis |
Operator/Owner: | Bi-State Development Agency |
Airport Type: | Public |
Elevation: | 413 feet (126 meters) |
# of Runways: | 3 |
View all routes: | Routes from CPS |
More Information: | CPS Maps & Info |
Facts about Trenton-Mercer Airport (TTN):
- No public transportation options actually pick up or drop off passengers in front of the terminal, but nearby bus and train routes exist.
- The furthest airport from Trenton-Mercer Airport (TTN) is Margaret River Airport (MGV), which is located 11,737 miles (18,889 kilometers) away in Margaret River, Western Australia, Australia.
- In 1995 the airport's name was changed to Trenton-Mercer Airport in an effort to identify it with the city of Trenton.
- Trenton-Mercer Airport (TTN) has 2 runways.
- The closest airport to Trenton-Mercer Airport (TTN) is Princeton Airport (PCT), which is located only 12 miles (19 kilometers) NE of TTN.
- Because of Trenton-Mercer Airport's relatively low elevation of 212 feet, planes can take off or land at Trenton-Mercer 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 is also home to the Twin Pine Composite Squadron of the New Jersey Wing of the Civil Air Patrol.
- On weekdays, NJ Transit's 607 bus stops just outside the airport grounds, at Bear Tavern Rd and Cardinal Dr.
Facts about St. Louis Downtown Airport (CPS):
- Because of St. Louis Downtown Airport's relatively low elevation of 413 feet, planes can take off or land at St. Louis Downtown 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 closest airport to St. Louis Downtown Airport (CPS) is Lambert–St. Louis International Airport (STL), which is located only 16 miles (27 kilometers) NW of CPS.
- St. Louis Downtown Airport (CPS) has 3 runways.
- The airport closed in 1959 and reopened six years later as Bi-State Parks Airport.
- The furthest airport from St. Louis Downtown Airport (CPS) is Margaret River Airport (MGV), which is located 10,998 miles (17,700 kilometers) away in Margaret River, Western Australia, Australia.