Voyage Time from England to Boston in the 1700s: 2–3 Months Under Sail

A transatlantic crossing from England to Boston in the 18th century was a major undertaking, typically taking 6 to 12 weeks (1.5–3 months), highly dependent on season, weather, and vessel.

Typical Route

1. Depart English port (London, Bristol, Liverpool, Portsmouth).
2. Sail down Channel, catch Northeast Trade Winds off Portugal/Canaries.
3. Cross Atlantic on westward-flowing currents (North Equatorial Current).
4. Pass Azores (mid-Atlantic waypoint).
5. Approach North America via Gulf Stream (northeastward current — adds speed but pushes north).
6. Make landfall (often Cape Cod or Maine), then coast south to Boston Harbor.

Key Variables

Historical Benchmarks

• Fastest recorded (packet ship, favorable): ~22 days (rare).
• Typical merchant passage: 7–9 weeks.
• Mayflower (1620, slower ship, late season): 66 days.
• Packet lines (1810s+): Scheduled 3–4 week runs (steam later cut to 10–14 days).

Risks

Shipwreck, disease (scurvy, dysentery, smallpox), impressment (Royal Navy), privateers/pirates, ice (winter). Mortality 1–5% on bad passages.

By the 1770s, regular packet service (London–Boston, ~6–8 weeks) connected the colony to the metropole — the "internet" of empire.