San Francisco to Portland

1 ways to travelfastest 1h 46mfly from €52
Photo: Jimmy Hu / Unsplash

When is it cheapest to fly?

Sep: from €154 — show this month's calendar €154 SepOct: from €56 — show this month's calendar €56 OctDec: from €52 — show this month's calendar €52 DecJan: from €72 — show this month's calendar €72 Jan

How the cheapest fare moved

Sep 21: €59 €59 Sep 15 Sep 21 low €56 · high €175

Departure-day prices · September 2026 San Francisco → Portland

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

Return-day prices · September 2026 Portland → San Francisco

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

Best time to visit Portland — climate

Jan: ~8°C daytime, 8 rainy days 8° JanFeb: ~8°C daytime, 18 rainy days 8° FebMar: ~13°C daytime, 25 rainy days 13° MarApr: ~17°C daytime, 9 rainy days 17° AprMay: ~20°C daytime, 12 rainy days 20° MayJun: ~24°C daytime, 2 rainy days 24° JunJul: ~29°C daytime, 1 rainy days 29° JulAug: ~29°C daytime, 3 rainy days 29° AugSep: ~25°C daytime, 5 rainy days 25° SepOct: ~16°C daytime, 15 rainy days 16° OctNov: ~12°C daytime, 17 rainy days 12° NovDec: ~10°C daytime, 20 rainy days 10° Dec

Best value: Oct — fares from €56 and ~16°C daytime.

Flights from San Francisco to Portland start around €52 (direct flights available). Range seen recently: €52–75, based on 9 fares found by travellers.

Fly (from €52)
1h 46mduration
€52–75recent fares
Book
Cheapest cached fares San Francisco → Portland; direct flights available (e.g. UA). · Based on 9 fares found by travellers in the last 48h

Cheapest round trips to Portland

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

Nov 6 – Nov 8 United Airlines · Direct · 1h 54m €165 Book
Oct 4 – Oct 5 Frontier Airlines · 1 stop · 4h 18m €387 Book

Weather in Portland

Mon ☁️ 22° 13° 💧0%
Tue ☁️ 20° 12° 💧1%
Wed ☁️ 23° 12° 💧0%
Thu 🌧️ 16° 13° 💧37%
Fri 🌦️ 19° 11° 💧44%
Sat ☁️ 20° 11° 💧6%
Sun ☁️ 21° 13° 💧9%

In Sep, Portland typically sees ~25°C daytime highs and 5 rainy days.

Good to know

Time differenceSame time zone
Time in the air1h 54m

Things to do in Portland

Top-rated tours and tickets from €52 — book ahead for the popular ones.

from €66
Two Hour Lighthouse Bicycle Tour from South Portland-Mellow★ 5.0 (61)
from €576
Sunset & Scenic Private Boat Tour of Portland & Casco Bay★ 5.0 (27)
from €52
Guardians of the Harbor Trolley Tour★ 5.0 (9)
from €350
Private White Mountains Tour with Mount Washington Cog Railway★ 5.0 (6)
from €574
Private Yacht Tour in Portland, Maine 2hr, 4hr and 6hr Available★ 5.0 (4)
from €1336
Private Portland Lighthouses and Kennebunkport Tour - 12 Pax★ 5.0 (4)

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

Round out the trip

eSIM for PortlandData from the moment you land — no roaming bills. Rent a car in PortlandCompare local and international rental desks. Airport transferFixed-price pickup waiting at arrivals. Travel insuranceMedical + luggage cover from a few €/day.

Popular from San Francisco

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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 2026-09-21. Some links earn Stayonomy a commission at no cost to you.