---
title: "Dublin to Boston (DUB → BOS): distance and flight time · Orbit"
description: "Dublin to Boston is 4,804 km (2,985 mi) great circle, an estimated 6h 28m in the air. The route, what it flies over, and why the short way is not the straight line on a map."
url: https://orbitflights.app/routes/dub-to-bos
---

DUB → BOS

# Dublin to Boston: distance, flight time and the route it really takes

Dublin to Boston Logan is 4,804 km of great circle — 2,985 mi — and an estimated 6h 28m in the air. It crosses from Europe to North America.

**Great circle**
4,804 km
2,985 mi

**Estimated in the air**
6h 28m
block time

**Furthest from equator**
54.4°N
at 21% along

**One lap of Earth**
12.0%
of 40,075 km

Of the [292 routes catalogued here](https://orbitflights.app/routes), this is the 134th longest.

The Dublin to Boston route drawn as a great circle arc on a globe

## What the aircraft actually flies over

From Dublin the path crosses Ireland, then 3,122 km of open water, then Canada, then 528 km of open water.

The furthest the great circle gets from the equator is 54.4°N, 21% of the way along.

Flying the line that looks straight on a Mercator map — one constant compass bearing — would cover 4,956 km. That is 153 km further, about 3% more, and roughly 11m of extra flying.

Leaving Dublin the aircraft points west (283°); it arrives into Boston heading south-west (232°). That is 51° of drift without a single turn — the compass moves because the path is a curve on a sphere, not because the aircraft does.

One economy seat on it is about 680 kg of CO₂e each way, counting non-CO₂ warming.

[DUB–BOS carbon footprint →](https://orbitflights.app/tools/flight-carbon-calculator?from=DUB&to=BOS) [Map this route →](https://orbitflights.app/tools/flight-route-map?r=DUB-BOS)

From

DUB

## Dublin

Dublin, Ireland · Europe

53.4°N, 6.3°W

[DUB airport →](https://orbitflights.app/airports/dub)

To

BOS

## Boston Logan

Boston, United States · North America

42.4°N, 71.0°W

[BOS airport →](https://orbitflights.app/airports/bos)

## Dublin to Boston, asked and answered

**How far is Dublin to Boston?**
Dublin to Boston (DUB to BOS) is 4,804 km, or 2,985 mi, measured as great circle distance between the two airports.

**How long is the flight from Dublin to Boston?**
About 6h 28m in the air. That is an estimate from the distance at a typical airliner block speed, plus half an hour for taxi, climb and descent; published schedules vary with winds and routing.

**What route does a Dublin to Boston flight take?**
The great circle passes over Ireland, then 3,122 km of open water, then Canada, then 528 km of open water. It reaches 54.4°N at its furthest from the equator.

## Where these numbers come from

Distances are computed from the two airports’ own coordinates, not looked up from published routes. Times are estimates, not schedules.

[Why the shortest path is a curve →](https://orbitflights.app/blog/great-circle-routes-explained)

## Flown this one?

Orbit logs it in two taps and draws the arc on your own globe, along with every other flight you can remember. Free for your first 15.

[Download now](https://play.google.com/store/apps/details?id=com.qwertybit.orbit)

## Nearby routes

[DUB → JFK Dublin to New York 5,103 km](https://orbitflights.app/routes/dub-to-jfk) [LHR → BOS London to Boston 5,240 km](https://orbitflights.app/routes/lhr-to-bos) [KEF → BOS Reykjavík to Boston 3,875 km](https://orbitflights.app/routes/kef-to-bos) [LHR → DUB London to Dublin 449 km](https://orbitflights.app/routes/lhr-to-dub) [ZRH → DXB Zurich to Dubai 4,769 km](https://orbitflights.app/routes/zrh-to-dxb) [FRA → DXB Frankfurt to Dubai 4,845 km](https://orbitflights.app/routes/fra-to-dxb)

## Further reading

[How many miles do you have to fly around the world?](https://orbitflights.app/blog/how-many-miles-to-fly-around-the-world) [What is on the exact opposite side of the world?](https://orbitflights.app/blog/opposite-side-of-the-world) [What's actually worth counting in a flight log](https://orbitflights.app/blog/what-is-worth-counting-in-a-flight-log)

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Markdown copy of https://orbitflights.app/routes/dub-to-bos for language models and agents. Site index: https://orbitflights.app/llms.txt