Cheap flights from Cambridge to San Francisco

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How to find the cheapest flight from
Cambridge (CBG) to San Francisco (SFO)

All the information you need to plan the best CBG to SFO flight in 2021: compare Cambridge to San Francisco flight prices with the expected peak season, weather and rainfall in San Francisco.
How far in advance should I book a flight from Cambridge to San Francisco?

Find a great deal and save up to 41% by booking at least 61 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Cambridge to San Francisco within the next two weeks, with the cheapest ticket starting at £387.

What is the cheapest month to fly from Cambridge to San Francisco?

Our data shows that February tends to be the cheapest month to fly to San Francisco from Cambridge. Users have commonly found prices around £352 for the month, but tickets can be as low as £258. Due to multiple factors, prepare for potentially higher prices in July.

When is the cheapest time to fly from Cambridge to San Francisco (CBG - SFO)?

When flying from Cambridge to San Francisco, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Cambridge</span> to <span class="emphasized">San Francisco</span> flights.

Flight FAQs

From Cambridge to San Francisco

Are flight prices decreasing from Cambridge to San Francisco due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Cambridge and San Francisco for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

COVID Restrictions

View COVID Travel Restrictions for San Francisco, CA

Do I need a COVID test to fly to San Francisco from Cambridge?

Information is based on travel restrictions from Cambridge to San Francisco

Most visitors from Cambridge will not be allowed to enter San Francisco.

COVID-19 testing requirements
Visitors from Cambridge must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to San Francisco.

Quarantine requirements
Visitors from Cambridge are not required to quarantine after entering San Francisco.

Do I need a test to fly back to Cambridge from San Francisco?

Returning to Cambridge from San Francisco

COVID-19 testing requirements
Visitors from San Francisco must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Cambridge.

Quarantine requirements
Visitors from San Francisco are not required to quarantine after entering Cambridge.

Hide COVID Travel Restrictions for San Francisco, CA

Alternative routes for Cambridge to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for San Francisco

Things to know before you go - useful duration and weather info for your trip from Cambridge to San Francisco.
Today's exchange rate
£1 = $1.39
Average temperature for September in San Francisco
25.0 °C
Avg rainfall for September in San Francisco
3.0 mm

Airports servicing Cambridge

Airports servicing San Francisco

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