Boston to San Francisco

1 ways to travelfastest 6h 35mfly from €158
Photo: Joshua Sortino / Unsplash

How the cheapest fare moved

Nov 4: €171 €171 Oct 29 Nov 4 low €158 · high €294

Departure-day prices · June 2027 Boston → San Francisco

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

Return-day prices · June 2027 San Francisco → Boston

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

Best time to visit San Francisco — climate

Jan: ~15°C daytime, 2 rainy days 15° JanFeb: ~15°C daytime, 12 rainy days 15° FebMar: ~15°C daytime, 12 rainy days 15° MarApr: ~17°C daytime, 3 rainy days 17° AprMay: ~19°C daytime, 1 rainy days 19° MayJun: ~18°C daytime, 0 rainy days 18° JunJul: ~17°C daytime, 0 rainy days 17° JulAug: ~20°C daytime, 0 rainy days 20° AugSep: ~21°C daytime, 2 rainy days 21° SepOct: ~20°C daytime, 4 rainy days 20° OctNov: ~17°C daytime, 8 rainy days 17° NovDec: ~13°C daytime, 10 rainy days 13° Dec

Best value: Nov — fares from €181 and ~17°C daytime.

Flights from Boston to San Francisco start around €158 (typically 1 stop). Range seen recently: €158–229, based on 9 fares found by travellers.

Fly (from €158)
6h 35mduration
€158–229recent fares
Book
Cheapest cached fares Boston → San Francisco; typically 1 stop (e.g. AS). · Based on 9 fares found by travellers in the last 48h

Cheapest round trips to San Francisco

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

Dec 11 – Dec 14 Southwest Airlines · 2 stops · 8h 55m €231 Book
Dec 4 – Dec 7 jetBlue · 1 stop · 8h 03m €240 Book
Nov 20 – Nov 27 jetBlue · Direct · 6h 40m €354 Book
Nov 23 – Nov 28 Alaska Airlines · 1 stop · 8h 17m €361 Book
Nov 23 – Nov 27 jetBlue · Direct · 6h 40m €367 Book
Dec 18 – Dec 21 Sun Country Airlines · 1 stop · 7h 56m €377 Book
Nov 22 – Nov 30 jetBlue · Direct · 6h 40m €431 Book
Nov 6 – Nov 9 Frontier Airlines · 1 stop · 9h 03m €436 Book

Weather in San Francisco

Wed ☁️ 18° 12° 💧2%
Thu ☁️ 22° 10° 💧0%
Fri ☁️ 22° 14° 💧0%
Sat ☀️ 23° 15° 💧0%
Sun ☁️ 20° 15° 💧0%
Mon ☁️ 17° 14° 💧0%
Tue ☁️ 18° 13° 💧11%

In Jun, San Francisco typically sees ~19°C daytime highs and 0 rainy days.

Where to stay in San Francisco

3★+ hotels from €71/night (40 hotels sampled, ~3 weeks out).

Stanford Court San Francisco hotel · San Francisco
from €71/night★ 4
Executive Hotel Vintage Court hotel · San Francisco
from €87/night★ 3
Hotel Emblem San Francisco hotel · San Francisco
from €93/night★ 5

Good to know

Time difference-3h
Time in the air6h 40m

Things to do in San Francisco

Top-rated tours and tickets from €32 — book ahead for the popular ones.

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

About San Francisco

The centerpiece of the Bay Area, San Francisco is one of the most visited cities in the world, and with good reason. The cultural center of northern California, San Francisco is renowned for its mixture of scenic beauty and unique culture that makes it one of the most vibrant and desirable cities in the nation, if not the world. Sandwiched between the San Francisco Bay and the Pacific Ocean on a small square of land seven miles (11 km) on each side, San Francisco offers a wealth of treasures for the visitor, from the windswept and often foggy b…

Read the full San Francisco guide

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

Round out the trip

Popular from Boston

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 2026-11-04. Some links earn Stayonomy a commission at no cost to you.