Air Miles Calculator logo

How far is Ithaca, NY, from Portland, ME?

The distance between Portland (Portland International Jetport) and Ithaca (Ithaca Tompkins Regional Airport) is 321 miles / 517 kilometers / 279 nautical miles.

The driving distance from Portland (PWM) to Ithaca (ITH) is 432 miles / 696 kilometers, and travel time by car is about 8 hours 49 minutes.

Portland International Jetport – Ithaca Tompkins Regional Airport

Distance arrow
321
Miles
Distance arrow
517
Kilometers
Distance arrow
279
Nautical miles

Search flights

Distance from Portland to Ithaca

There are several ways to calculate the distance from Portland to Ithaca. Here are two standard methods:

Vincenty's formula (applied above)
  • 321.179 miles
  • 516.887 kilometers
  • 279.097 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.

Haversine formula
  • 320.390 miles
  • 515.618 kilometers
  • 278.411 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

How long does it take to fly from Portland to Ithaca?

The estimated flight time from Portland International Jetport to Ithaca Tompkins Regional Airport is 1 hour and 6 minutes.

What is the time difference between Portland and Ithaca?

There is no time difference between Portland and Ithaca.

Flight carbon footprint between Portland International Jetport (PWM) and Ithaca Tompkins Regional Airport (ITH)

On average, flying from Portland to Ithaca generates about 72 kg of CO2 per passenger, and 72 kilograms equals 159 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Portland to Ithaca

See the map of the shortest flight path between Portland International Jetport (PWM) and Ithaca Tompkins Regional Airport (ITH).

Airport information

Origin Portland International Jetport
City: Portland, ME
Country: United States Flag of United States
IATA Code: PWM
ICAO Code: KPWM
Coordinates: 43°38′46″N, 70°18′33″W
Destination Ithaca Tompkins Regional Airport
City: Ithaca, NY
Country: United States Flag of United States
IATA Code: ITH
ICAO Code: KITH
Coordinates: 42°29′27″N, 76°27′30″W