Madrid to Santo Domingo distance

Madrid to Santo Domingo in a straight line

In a straight line, the shortest distance over the Earth’s surface, Madrid and Santo Domingo are 6,703 km (4,165 mi) apart, 17% of the way around the Earth at the equator. That’s the geodesic on the WGS84 ellipsoid, the distance “as the crow flies”. There’s no road between them: the straight line crosses 6,164 km of sea, 92% of the way.

From Madrid, Santo Domingo lies to the west (bearing 270°), and from Santo Domingo, Madrid lies to the northeast. The straight line reaches Santo Domingo on a bearing of 233°: the bearing keeps turning along the way (36° in all), which is why the shortest route looks curved on a flat map.

If the plane kept the same bearing all the way (249°, to the west), it would follow the rhumb line, the one that looks straight on a Mercator map: 6,807 km (4,230 mi), 104 km more (1.5% longer).

What the route flies over

Under the straight line there are 6,164 km of sea (92%) and 540 km of land. In order, from Madrid: 265 km over Spain, 175 km over Portugal, and 100 km over the Dominican Republic.

Planes don’t follow the line exactly: they fly along airways, chase tailwinds and avoid closed airspace, but on long flights they stay close to it.

Halfway between Madrid and Santo Domingo

Halfway along the straight line, 3,352 km (2,083 mi) from each city, is the point 33.9412° N, 40.8561° W. It falls at sea; the nearest town is Lagens (Azores, Portugal, pop. 3,907), 1,054 km away.

Time difference and flight

A direct flight would take about 8 hr 55 min. That’s an estimate: 30 minutes for takeoff, climb, descent and landing, plus the 6,703 km straight line at 800 km/h (about 497 mph), a typical airliner cruising speed. Real schedules depend on wind, routing and airports, and not every pair has a direct flight. Westbound flights usually take a little longer than eastbound ones because of high-altitude winds (the jet stream).

In January, Santo Domingo is 5 hours behind Madrid; in July, 6 hours behind Madrid. It changes because they don’t switch to summer time together.

With that flight time, if you leave Madrid at 10:00, you land in Santo Domingo around 13:55 (Santo Domingo time) in January and around 12:55 in July.

The two cities

Santo Domingo is 21.9° farther south than Madrid and 66.2° farther west. Madrid has 3.5 million people (INE population register, January 1, 2025) and Santo Domingo 2.2 million people (GeoNames).