The distance from Emancipation Hill Heliport () to Ontario International Airport (ONT) is 791 miles or 1273 kilometers or 687 nautical miles.
The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.
1273 kilometers is the direct flight distance between Emancipation Hill Heliport (United States) and Ontario International Airport (United States).
How long does it take to travel from Boulder ( United States ) to Ontario ( United States )?
A one-way nonstop (direct) flight between Boulder and Ontario takes around 1 hours 49 minutes.
Estimated
flight time from Emancipation Hill Heliport, Boulder, United States to Ontario International Airport, Ontario, United States is
1 hours 49 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.
Travel Distance Between the Airports • - ONT
| Kilometers | | 1273 km |
| Statute Miles | | 791 miles |
| Nautical Miles | | 687 nm |
| Avg. Time of Flight | | 1 hours 49 minutes |
Emancipation Hill Heliport to Ontario International Airport Flight Route Map - to ONT Flight Path
Location of Emancipation Hill Heliport & Ontario International Airport is given below.
Click the map to view Boulder to Ontario nonstop flight path and travel direction.
Click to see flight route on Google Map between Boulder, United States and Ontario, United States. .
Nonstop flight route between Boulder, United States and Ontario, United States.
Time Difference Between the Airports • - ONT
Time difference between
Boulder (United States) and
Ontario (United States) is 1 Hours.
Ontario time is 1 Hours behind Boulder.
| Location | Local Time |
| Boulder (United States) | 2026-05-07, 09:29:05 MDT |
| Ontario (United States) | 2026-05-07, 08:29:05 PDT |
Why should you arrive 3 hours before international flight?
Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.