San Francisco to Boston

1 ways to travelfastest 7h 18mfly from €123
Photo: jacob Licht / Unsplash

How the cheapest fare moved

Jul 22: €128 €128 Jul 15 Jul 22 low €123 · high €133

Departure-day prices · August 2026 San Francisco → Boston

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Cheapest days highlighted · darker = pricier · past days greyed out · cached one-way fares.

Return-day prices · August 2026 Boston → San Francisco

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1€2292€2023€2024€2025€174
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15€310
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22€273
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31

Cheapest days highlighted · darker = pricier · past days greyed out · cached one-way fares.

Best time to visit Boston — climate

Jan: ~0°C daytime, 7 rainy days JanFeb: ~2°C daytime, 8 rainy days FebMar: ~10°C daytime, 8 rainy days 10° MarApr: ~15°C daytime, 12 rainy days 15° AprMay: ~19°C daytime, 13 rainy days 19° MayJun: ~25°C daytime, 9 rainy days 25° JunJul: ~29°C daytime, 14 rainy days 29° JulAug: ~26°C daytime, 7 rainy days 26° AugSep: ~23°C daytime, 9 rainy days 23° SepOct: ~17°C daytime, 8 rainy days 17° OctNov: ~10°C daytime, 11 rainy days 10° NovDec: ~2°C daytime, 9 rainy days Dec

Best value: Aug — fares from €123 and ~26°C daytime.

Flights from San Francisco to Boston start around €123 (typically 1 stop). Range seen recently: €123–136, based on 4 fares found by travellers.

Fly (from €123)
7h 18mduration
€123–136recent fares
Book
Cheapest cached fares San Francisco → Boston; typically 1 stop (e.g. F9). · Based on 4 fares found by travellers in the last 48h

Cheapest round trips to Boston

Fares found by travellers in the last 48 hours — refreshed daily.

Sep 7 – Sep 10 Southwest Airlines · 1 stop · 6h 15m €268 Book
Oct 24 – Nov 20 jetBlue · 1 stop · 6h 50m €275 Book
Aug 27 – Aug 30 Southwest Airlines · 1 stop · 6h 30m €303 Book
Aug 5 – Aug 8 jetBlue · Direct · 5h 41m €406 Book
Nov 24 – Nov 29 Southwest Airlines · 1 stop · 6h 25m €412 Book
Jul 25 – Jul 27 Frontier Airlines · 1 stop · 7h 48m €493 Book
Jul 23 – Jul 27 American Airlines · 1 stop · 7h 34m €519 Book
Jul 24 – Jul 27 Alaska Airlines · 1 stop · 7h 27m €525 Book

Weather in Boston

Tue 🌦️ 27° 16° 💧85%
Wed ☁️ 29° 21° 💧18%
Thu ☁️ 24° 17° 💧2%
Fri ☁️ 23° 16° 💧0%
Sat ☁️ 20° 16° 💧6%
Sun ☁️ 23° 14° 💧11%
Mon 🌦️ 30° 18° 💧38%

In Aug, Boston typically sees ~26°C daytime highs and 7 rainy days.

Where to stay in Boston

3★+ hotels from €135/night (37 hotels sampled, ~3 weeks out).

Hampton Inn Boston Logan Airport hotel · Boston
from €135/night★ 3
Eurostars The Boxer hotel · Boston
from €162/night★ 4
Hilton Garden Inn Boston Logan Airport hotel · Boston
from €182/night★ 3

Good to know

Time difference+3h
Time in the air5h 41m

Things to do in Boston

Top-rated tours and tickets from €31 — book ahead for the popular ones.

Tours and tickets provided by Viator (a Tripadvisor company). Some links earn Stayonomy a commission.

About Boston

A city of history and tradition, Boston offers a proud legacy of culture, education, and numerous sporting championships. The "shining city on a hill"s independent spirit has been displayed to the world ever since colonists were angry over a British tax on their beloved tea and dumped shiploads of it into the harbor in protest. In the early 1600s, the peninsula in Massachusetts that would become known as Boston was controlled by Native Americans until John Smith (English soldier, explorer, colonial governor, Admiral of New England, and author) …

Read the full Boston guide

Guide content from Wikivoyage contributors (CC BY-SA).

Round out the trip

Popular from San Francisco

Cheapest destinations travellers searched recently — refreshed daily.

Flight prices are real fares travellers found in the last 48 hours, refreshed daily — the booking site confirms the final price. Train, bus and ferry fares are shown on the operators' booking sites. Weather data by Open-Meteo; exchange rates: ECB reference. Data updated 2026-07-22. Some links earn Stayonomy a commission at no cost to you.