Travelers have found it’s best to book a flight 61 days in advance to save up to 79% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 61 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from San Francisco to Cambridge 1-2 weeks in advance for as low as $701, or $885 for flights within the next 24 hours.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Francisco to Cambridge as you normally would.
Flights from San Francisco to Cambridge lean towards being more expensive in December. Prices are generally better when you fly from San Francisco to Cambridge in February, with the cheapest ticket starting at $369.