How far is Ontario, CA, from Portland, ME?
The distance between Portland (Portland International Jetport) and Ontario (Ontario International Airport) is 2598 miles / 4181 kilometers / 2258 nautical miles.
The driving distance from Portland (PWM) to Ontario (ONT) is 3050 miles / 4909 kilometers, and travel time by car is about 54 hours 42 minutes.
Portland International Jetport – Ontario International Airport
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Distance from Portland to Ontario
There are several ways to calculate the distance from Portland to Ontario. Here are two standard methods:
Vincenty's formula (applied above)- 2597.995 miles
- 4181.068 kilometers
- 2257.596 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- 2592.375 miles
- 4172.023 kilometers
- 2252.712 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 Ontario?
The estimated flight time from Portland International Jetport to Ontario International Airport is 5 hours and 25 minutes.
What is the time difference between Portland and Ontario?
The time difference between Portland and Ontario is 3 hours. Ontario is 3 hours behind Portland.
Flight carbon footprint between Portland International Jetport (PWM) and Ontario International Airport (ONT)
On average, flying from Portland to Ontario generates about 287 kg of CO2 per passenger, and 287 kilograms equals 632 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 Ontario
See the map of the shortest flight path between Portland International Jetport (PWM) and Ontario International Airport (ONT).
Airport information
| Origin | Portland International Jetport |
|---|---|
| City: | Portland, ME |
| Country: | United States  |
| IATA Code: | PWM |
| ICAO Code: | KPWM |
| Coordinates: | 43°38′46″N, 70°18′33″W |
| Destination | Ontario International Airport |
|---|---|
| City: | Ontario, CA |
| Country: | United States |
| IATA Code: | ONT |
| ICAO Code: | KONT |
| Coordinates: | 34°3′21″N, 117°36′3″W |