The distance from Trenton-Mercer Airport to Allentown, Pennsylvania is:

77 miles / 124 km driving

42 miles / 68 km flying

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Map of distance from TTN to Allentown, PA

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Distance from TTN to Allentown, PA

The total driving distance from TTN to Allentown, PA is 77 miles or 124 kilometers.

The total straight line flight distance from TTN to Allentown, PA is 42 miles.

This is equivalent to 68 kilometers or 37 nautical miles.

Your trip begins at Trenton-Mercer Airport in Trenton, New Jersey. It ends in Allentown, Pennsylvania.

Your flight direction from TTN to Allentown, PA is Northwest (-57 degrees from North).

The distance calculator helps you figure out how far it is to get from TTN to Allentown, PA. It does this by computing the straight line flying distance ("as the crow flies") and the driving distance if the route is drivable. It uses all this data to compute the total travel mileage.

Trenton-Mercer Airport

IATA: TTN
ICAO: KTTN
FAA: TTN
City: Trenton
State: New Jersey
Zip code: 08628
Country: United States
Category: airports

Allentown, Pennsylvania

City: Allentown
State: Pennsylvania
Country: United States
Category: cities

Distance calculator

Travelmath helps you find distances based on actual road trip directions, or the straight line flight distance. You can get the distance between cities, airports, states, countries, or zip codes to figure out the best route to travel to your destination. Compare the results to the straight line distance to determine whether it's better to drive or fly. The database uses the latitude and longitude of each location to calculate distance using the great circle distance formula. The calculation is done using the Vincenty algorithm and the WGS84 ellipsoid model of the Earth, which is the same one used by most GPS receivers. This gives you the flying distance "as the crow flies." Find your flight distances quickly to estimate the number of frequent flyer miles you'll accumulate. Or ask how far is it between cities to solve your homework problems. You can lookup U.S. cities, or expand your search to get the world distance for international trips. You can also print out pages with a travel map.