Frequently Asked Questions
What is the distance between Chicago, Illinois, United States and Da Nang, Đà Nẵng, Vietnam?
The straight-line (great-circle) distance between Chicago, Illinois, United States and Da Nang, Đà Nẵng, Vietnam is 13,372 kilometres (8,309 miles). This is the shortest possible distance between the two points on Earth's surface, calculated using the haversine formula based on precise latitude and longitude coordinates.
How long does it take to fly from Chicago, Illinois, United States to Da Nang, Đà Nẵng, Vietnam?
At an average commercial jet speed of 900 km/h, the estimated flight time from Chicago to Da Nang is approximately 14.9 hours. This excludes takeoff, landing, taxi time, and potential layovers. Actual flight duration may vary depending on aircraft type, routing, weather conditions, and air traffic.
What is the time difference between Chicago, Illinois, United States and Da Nang, Đà Nẵng, Vietnam?
The time difference between Chicago, Illinois, United States and Da Nang, Đà Nẵng, Vietnam is +12h. Da Nang is +12h ahead of Chicago. This difference is important to consider when scheduling calls, meetings, or travel between the two cities.
Is the distance shown the same as driving distance?
No. The distance shown is the straight-line distance (also called "as the crow flies" or great-circle distance). Actual driving distance would be longer due to roads, terrain, and geographic obstacles. Flight routing may also differ from the straight-line path due to air traffic corridors, weather, and political airspace restrictions.
How accurate is this distance calculator?
Our calculator uses precise latitude and longitude coordinates from a database of over 150,000 cities worldwide and applies the haversine formula. This method is accurate to within a fraction of a percent for Earth-scale distances, making it suitable for travel planning, logistics, and general reference.
What are the coordinates of Chicago and Da Nang?
Chicago is located at approximately 41.85003000°N, -87.65005000°E. Da Nang is located at approximately 16.06778000°N, 108.22083000°E. These coordinates are used to calculate the precise great-circle distance between the two cities.