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240 € Cheap Flights from San Francisco International to Boston

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      Compare San Francisco International to Boston flight deals

      Find the cheapest month or even day of the year to fly to Boston

      Book the best Boston fare with no extra fees

      Flight deals from San Francisco International to Boston

      Looking for a cheap last-minute deal or the best return flight from San Francisco International Airport to Boston? If you want to travel next month, return fares start from 240 €. Find the lowest prices on one-way and return tickets right here.
      Boston.240 € per passenger.Departing Sat, 14 Nov, returning Wed, 18 Nov.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from San Francisco International on Sat, 14 Nov, arriving in Boston Logan International.Inbound indirect flight with Southwest Airlines, departs from Boston Logan International on Wed, 18 Nov, arriving in San Francisco International.Price includes taxes and charges.From 240 €, select.
      Boston.240 € per passenger.Departing Tue, 27 Oct, returning Wed, 28 Oct.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from San Francisco International on Tue, 27 Oct, arriving in Boston Logan International.Inbound indirect flight with Southwest Airlines, departs from Boston Logan International on Wed, 28 Oct, arriving in San Francisco International.Price includes taxes and charges.From 240 €, select.
      Boston.240 € per passenger.Departing Wed, 13 Jan, returning Tue, 19 Jan.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from San Francisco International on Wed, 13 Jan, arriving in Boston Logan International.Inbound indirect flight with Southwest Airlines, departs from Boston Logan International on Tue, 19 Jan, arriving in San Francisco International.Price includes taxes and charges.From 240 €, select.
      Boston.251 € per passenger.Departing Wed, 9 Dec, returning Tue, 15 Dec.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from San Francisco International on Wed, 9 Dec, arriving in Boston Logan International.Inbound indirect flight with Southwest Airlines, departs from Boston Logan International on Tue, 15 Dec, arriving in San Francisco International.Price includes taxes and charges.From 251 €, select.
      Boston.254 € per passenger.Departing Sat, 24 Oct, returning Sat, 7 Nov.Return flight with Frontier Airlines and jetBlue.Outbound indirect flight with Frontier Airlines, departs from San Francisco International on Sat, 24 Oct, arriving in Boston Logan International.Inbound indirect flight with jetBlue, departs from Boston Logan International on Sat, 7 Nov, arriving in San Francisco International.Price includes taxes and charges.From 254 €, select.
      Boston.255 € per passenger.Departing Wed, 16 Dec, returning Mon, 18 Jan.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from San Francisco International on Wed, 16 Dec, arriving in Boston Logan International.Inbound indirect flight with Southwest Airlines, departs from Boston Logan International on Mon, 18 Jan, arriving in San Francisco International.Price includes taxes and charges.From 255 €, select.
      Boston.268 € per passenger.Departing Tue, 24 Nov, returning Wed, 2 Dec.Return flight with Frontier Airlines and jetBlue.Outbound indirect flight with Frontier Airlines, departs from San Francisco International on Tue, 24 Nov, arriving in Boston Logan International.Inbound indirect flight with jetBlue, departs from Boston Logan International on Wed, 2 Dec, arriving in San Francisco International.Price includes taxes and charges.From 268 €, select.
      Boston.271 € per passenger.Departing Sat, 6 Feb, returning Mon, 8 Feb.Return flight with Frontier Airlines and jetBlue.Outbound indirect flight with Frontier Airlines, departs from San Francisco International on Sat, 6 Feb, arriving in Boston Logan International.Inbound indirect flight with jetBlue, departs from Boston Logan International on Mon, 8 Feb, arriving in San Francisco International.Price includes taxes and charges.From 271 €, select.
      Boston.285 € per passenger.Departing Wed, 20 Jan, returning Fri, 5 Feb.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from San Francisco International on Wed, 20 Jan, arriving in Boston Logan International.Inbound indirect flight with Southwest Airlines, departs from Boston Logan International on Fri, 5 Feb, arriving in San Francisco International.Price includes taxes and charges.From 285 €, select.
      Boston.290 € per passenger.Departing Fri, 6 Nov, returning Tue, 10 Nov.Return flight with Delta.Outbound direct flight with Delta departs from San Francisco International on Fri, 6 Nov, arriving in Boston Logan International.Inbound direct flight with Delta departs from Boston Logan International on Tue, 10 Nov, arriving in San Francisco International.Price includes taxes and charges.From 290 €, select.
      Boston.290 € per passenger.Departing Wed, 2 Dec, returning Sat, 5 Dec.Return flight with Delta.Outbound direct flight with Delta departs from San Francisco International on Wed, 2 Dec, arriving in Boston Logan International.Inbound direct flight with Delta departs from Boston Logan International on Sat, 5 Dec, arriving in San Francisco International.Price includes taxes and charges.From 290 €, select.
      Boston.290 € per passenger.Departing Tue, 27 Oct, returning Fri, 30 Oct.Return flight with Delta.Outbound direct flight with Delta departs from San Francisco International on Tue, 27 Oct, arriving in Boston Logan International.Inbound direct flight with Delta departs from Boston Logan International on Fri, 30 Oct, arriving in San Francisco International.Price includes taxes and charges.From 290 €, select.
      Boston.290 € per passenger.Departing Thu, 29 Oct, returning Thu, 5 Nov.Return flight with Delta.Outbound direct flight with Delta departs from San Francisco International on Thu, 29 Oct, arriving in Boston Logan International.Inbound direct flight with Delta departs from Boston Logan International on Thu, 5 Nov, arriving in San Francisco International.Price includes taxes and charges.From 290 €, select.
      Boston.316 € per passenger.Departing Wed, 18 Nov, returning Wed, 2 Dec.Return flight with Delta.Outbound direct flight with Delta departs from San Francisco International on Wed, 18 Nov, arriving in Boston Logan International.Inbound direct flight with Delta departs from Boston Logan International on Wed, 2 Dec, arriving in San Francisco International.Price includes taxes and charges.From 316 €, select.
      Boston.318 € per passenger.Departing Tue, 2 Mar, returning Tue, 16 Mar.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from San Francisco International on Tue, 2 Mar, arriving in Boston Logan International.Inbound indirect flight with Southwest Airlines, departs from Boston Logan International on Tue, 16 Mar, arriving in San Francisco International.Price includes taxes and charges.From 318 €, select.
      Boston.321 € per passenger.Departing Wed, 16 Dec, returning Mon, 18 Jan.Return flight with Delta.Outbound direct flight with Delta departs from San Francisco International on Wed, 16 Dec, arriving in Boston Logan International.Inbound direct flight with Delta departs from Boston Logan International on Mon, 18 Jan, arriving in San Francisco International.Price includes taxes and charges.From 321 €, select.
      How did we find these deals? The deals you see here are the lowest prices for flight tickets from San Francisco International to Boston found in the last 4 days, and are subject to change and availability.

      Find the cheapest month to fly from San Francisco International to Boston

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Francisco International to Boston flights are currently cheapest in October.
      Sep
      from 426 €
      Oct
      from 240 €
      Nov
      from 240 €
      Dec
      from 251 €
      Jan
      from 240 €
      Feb
      from 271 €
      Mar
      from 318 €
      Apr
      from 352 €
      May
      from 352 €
      Jun
      from 352 €
      Jul
      from 354 €
      Aug
      from 354 €

      Direct flights from San Francisco International to Boston

      Air China
      Air France
      Air New Zealand
      ANA (All Nippon Airways)
      China Eastern
      Delta
      EL AL Israel Airlines
      Etihad Airways
      Icelandair
      ITA Airways
      Japan Airlines
      jetBlue
      Korean Air
      LATAM Airlines
      Scandinavian Airlines
      Singapore Airlines
      TAP Air Portugal
      United
      Virgin Atlantic
      Virgin Australia
      WestJet

      Alternative San Francisco International to Boston routes

      Looking for the cheapest, fastest or easiest route from San Francisco International to Boston? You could fly into the following airports instead.

      Boston Logan International

      5km from central Boston
      Closest
      from 240 €
      Search flights

      Worcester

      68km from central Boston
      from 638 €
      Search flights

      Manchester

      72km from central Boston
      from 316 €
      Search flights

      Fall River

      76km from central Boston
      from 912 €
      Search flights

      Provincetown

      76km from central Boston
      Search flights

      Providence

      76km from central Boston
      Cheapest
      from 211 €
      Search flights

      Portsmouth

      82km from central Boston
      from 864 €
      Search flights

      San Francisco to Boston: Flight information

      The things to know before you go.
      Cheapest flight found240 €
      Cheapest month to flyJanuary
      Average flight time5 hrs, 44 mins
      Most popular airlinejetBlue
      Average flights per week426

      Finding cheap flights from San Francisco International to Boston: Frequently asked questions

      There are 7 airports in Boston: Boston Logan International, Worcester, Manchester, Fall River, Provincetown, Providence, and Portsmouth.
      The best price we found for a return flight from San Francisco International to Boston is 240 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      5 hours and 44 minutes is the average flight time from San Francisco International to Boston.
      jetBlue, United and Air New Zealand fly direct from San Francisco International to Boston.
      As of September 2026, there are 426 flights per week flying from San Francisco International to Boston.
      The cheapest month to fly from San Francisco International to Boston is usually January.
      If you're flying from San Francisco International Airport, the cheapest airport near Boston is Boston Logan International – which is 4.5 km away from the centre of Boston. We've found flights into this airport from 240 €.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Francisco International Airport to Boston on Wednesday, 13 January 2027.
      Yes – the average flight time is 5 hours and 44 minutes.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Boston but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Boston is around 40 days in advance, so don’t leave your flight to the last minute.

      In September, the average temperature is usually around 19°C. July is typically the warmest month in Boston, when it usually averages around 27°C. You can expect the least rain in November. The coldest month is January, with temperatures averaging -3°C. The rainiest month is January.
      Currently, Southwest Airlines and Delta offer the cheapest flight tickets to Boston.

      How to find cheap flights to Boston (BOSA) from San Francisco (SFO)in 2026

      Looking for cheap tickets from San Francisco International to Boston? Return tickets start from 240 € and one-way flights to Boston from San Francisco International start from 106 €


      Here are a few tips on how to secure the best flight price and make your journey as smooth as possible.

      • Simply hit 'search'. From British Airways to international carriers like Emirates, we compare all major airlines along with the most popular online travel agents to find the cheapest plane tickets from San Francisco International to Boston. And with us there are no hidden fees - what you see is what you pay.
      • Compare flight deals to Boston from San Francisco from over 1,000 providers. Then choose the cheapest or fastest plane tickets. Flight tickets to Boston start from 106 € one-way.
      • Set up a Price Alert. You can easily track the fare of your cheap San Francisco International-Boston flights by creating an alert. Whenever prices go down or up, you'll get an email or push notification to help make sure you get the best possible flight deal.
      • Flex your dates to find the best SFO-BOSA ticket prices. If you are flexible when it comes to your travel dates, use Skyscanner's 'Whole month' tool to find the cheapest month, and even day to fly to Boston from San Francisco International.
      • Fly without stops. Only interested in direct flights between San Francisco International and Boston? Make sure to tick 'Direct flights only' when performing a search. If there are direct flights available on the route, these will appear in the results. Airlines that fly direct include: jetBlue
        United
        Air New Zealand
        Virgin Australia
        WestJet
        LATAM Airlines
        Etihad Airways
        Delta
      • Find the cheapest Business class flights from San Francisco International and Boston. We scour the internet for the best Business, Premium Economy and First Class flight fares to Boston, too. Check the difference in price as you search – you might just chance upon a last-minute low fare. Note that not all cabin classes are available for every destination or airline.
      • Include nearby airports in your search. Widen your search for San Francisco International to Boston flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save next time you travel.
      • Flexible on when you travel? The cheapest month to fly from San Francisco International to Boston is January.
      • Search for cheap flights regardless of where you are. To get the best flight booking experience when out and about, download the app and search for plane tickets between San Francisco International and Boston whenever you want.

      Combine your flight to Boston from San Francisco International with hotels and car hire

      Once you've secured your cheap flight ticket from San Francisco International to Boston, discover the best prices and exclusive rates for hotels in Boston or nearby. You can also compare hundreds of car hire companies in one go so that you get the best car hire price for your trip.


      Plan the rest of your trip from San Francisco to Boston

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.