Cheap flights from Portland, ME to San Francisco, CA

One search, all the flights

We find you the best flight deals and travel hacks so that you can choose how to book.

Rise above all travel anxieties

With the Kiwi.com Guarantee we have your back with whatever happens.

Trusted by millions

Join over 10 million yearly travellers booking with ease.

How much do flights to San Francisco cost?

Key info about flying to San Francisco

Depart from
Portland International Jetport
Arrive to
San Francisco International
Average flights per week
40
Flight distance
Worth visiting
Alcatraz - Golden Gate Bridge - Big Sur

Check-in for a flight from Portland to San Francisco

NameCarrier codeIATA CodePassport needed during booking
United AirlinesUALUAYes

Weather in San Francisco

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January14°C7°C
February15°C8°C
March15°C8°C
April17°C9°C
May19°C10°C
June21°C12°C
July22°C13°C
August22°C14°C
September23°C14°C
October21°C13°C
November17°C10°C
December13°C8°C
Hottest Month
23°C
September
Coldest month
7°C
January
Sunny days
333
days per year

14 day forecast

Wednesday
11 Dec
12°C6°C
18 Dec
14°C10°C
Thursday
12 Dec
81%
12°C10°C
19 Dec
15°C10°C
Friday
13 Dec
12°C10°C
20 Dec
15°C11°C
Saturday
14 Dec
88%
13°C10°C
21 Dec
83%
14°C12°C
Sunday
15 Dec
12°C8°C
22 Dec
15°C11°C
Monday
16 Dec
80%
10°C8°C
23 Dec
15°C11°C
Tuesday
17 Dec
12°C8°C
24 Dec
16°C11°C
The most popular airline for this route is United Airlines. Portland and San Francisco have 40 direct flights per week. When you arrive at San Francisco, consider visiting Alcatraz, Golden Gate Bridge, and Big Sur.

Frequently asked questions

What are the most popular routes to and from Portland?
What are the most popular routes to and from San Francisco?
What airports are near Portland?
What airports are near San Francisco?
Which airlines fly between Portland and San Francisco?
When's the best time to travel between Portland and San Francisco?
What flights operate between Portland and San Francisco?
How many airports are there near Portland?
How many airports are there near San Francisco?
What time do nonstop (direct) flights between Portland and San Francisco depart?
What time do nonstop (direct) flights between Portland and San Francisco arrive?
What time do flights between Portland and San Francisco depart?
What time do flights between Portland and San Francisco arrive?

Explore alternative trips

Flights from Portland

Flights to San Francisco

Popular routes

The nearest countries with flights to San Francisco

Here is a list of countries people are flying from

Other destination countries from Portland

Here is a list of countries people are flying to
Find the best connection from Portland to San Francisco
Search flights

Get more out of Kiwi.com with our mobile application

Download boarding passes

One-click booking

Get exclusive offers and prices

Mobile trip notifications

We hack the system,
you fly for less