Nonstop flight route between Trenton, New Jersey, United States and Harlingen, Texas, United States:
Departure Airport:
 
    Arrival Airport:
 
    Distance from TTN to HRL:
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- About this route
- TTN Airport Information
- HRL Airport Information
- Facts about TTN
- Facts about HRL
- 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 HRL
- List of Nearest Airports to HRL
- Map of Furthest Airports from HRL
- List of Furthest Airports from HRL
About this route:
A direct, nonstop flight between Trenton-Mercer Airport (TTN), Trenton, New Jersey, United States and Valley International Airport (HRL), Harlingen, Texas, United States would travel a Great Circle distance of 1,630 miles (or 2,623 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 Valley International 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: | HRL / KHRL | 
| Airport Name: | Valley International Airport | 
| Location: | Harlingen, Texas, United States | 
| GPS Coordinates: | 26°13'37"N by 97°39'18"W | 
| Area Served: | Harlingen, Texas | 
| Operator/Owner: | City of Harlingen | 
| Airport Type: | Public | 
| Elevation: | 36 feet (11 meters) | 
| # of Runways: | 3 | 
| View all routes: | Routes from HRL | 
| More Information: | HRL Maps & Info | 
Facts about Trenton-Mercer Airport (TTN):
- Mercer County has a variety of taxi cab companies which operate from the Trenton Transit Center which services the Northeast Corridor via Amtrak, New Jersey Transit and SEPTA railroads.
- No public transportation options actually pick up or drop off passengers in front of the terminal, but nearby bus and train routes exist.
- The airport also is home to Royal Karina Air Service, which provides both flight training and aircraft rental.
- During World War II the nearby General Motors plant ceased producing civilian vehicles and began making TBF Avenger carrier-based torpedo bombers for the United States Navy.
- The closest airport to Trenton-Mercer Airport (TTN) is Princeton Airport (PCT), which is located only 12 miles (19 kilometers) NE of TTN.
- 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.
- 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.
- Trenton-Mercer Airport (TTN) has 2 runways.
Facts about Valley International Airport (HRL):
- The closest airport to Valley International Airport (HRL) is Brownsville/South Padre Island International Airport (BRO), which is located 26 miles (42 kilometers) SSE of HRL.
- Valley International Airport covers 2,428 acres at an elevation of 36 feet.
- Because of Valley International Airport's relatively low elevation of 36 feet, planes can take off or land at Valley International 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.
- Valley International Airport (HRL) has 3 runways.
- The furthest airport from Valley International Airport (HRL) is Sir Gaëtan Duval Airport (RRG), which is located 11,151 miles (17,946 kilometers) away in Rodrigues Island, Mauritius.




