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Cheap flights from San Francisco to Boston from C$ 163

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/1. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BOS
23 Dec — 30 Dec1
1 adult

Cheap flight deals from San Francisco to Boston

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 18 December 2024.

Round-trip from

C$ 303

One-way from

C$ 163

Popular in

June

Cheapest in

February

Average price

C$ 673
United Airlines
  • United Airlines
  • 21/1-24/1
  • 1 total stop
  • 14h 37m total
  • San Francisco to Boston
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Delta
  • Delta
  • 28/1
  • Nonstop
  • 5h 40m total
  • San Francisco to Boston
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High demand for flights, 13% potential price rise
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Best time to find cheap flights, 2% potential price drop
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Average for round-trip flights in December 2024
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Find flight deals from San Francisco to Boston

Cheapest flights from San Francisco to Boston
Explore the most affordable flight options available from San Francisco to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 December 2024.

Tue 31/127:10 a.m.SFO - BOS
Nonstop5h 49mDelta
Tue 14/17:40 a.m.BOS - SFO
Nonstop7h 09mDelta
Deal found 18/12C$ 411
Tue 31/1211:30 p.m.SFO - BOS
Nonstop5h 30mJetBlue
Wed 15/16:00 a.m.BOS - SFO
Nonstop6h 55mJetBlue
Deal found 16/12C$ 433
Mon 30/127:00 a.m.SFO - BOS
Nonstop5h 44mAlaska Airlines
Tue 14/15:24 p.m.BOS - SFO
1 stop22h 13mAlaska Airlines
Deal found 16/12C$ 443
Tue 24/121:30 p.m.SFO - BOS
Nonstop5h 42mUnited Airlines
Tue 7/15:45 a.m.BOS - SFO
1 stop8h 47mUnited Airlines
Deal found 17/12C$ 503
Mon 30/128:55 a.m.SFO - BOS
2 stops11h 40mSouthwest
Mon 13/16:55 a.m.BOS - SFO
1 stop13h 45mSouthwest
Deal found 18/12C$ 671

Find flights from San Francisco to Boston within your budget

Customize your flight search to find flights from San Francisco to Boston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 18 December 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Tue 21/1

11:10 p.m.-7:53 a.m.

Nonstop5h 43m

Boston Logan Intl

Fri 24/1

6:15 p.m.-12:09 a.m.

1 stop8h 54m

C$ 303

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Sat 11/1

7:30 a.m.-4:10 p.m.

Nonstop5h 40m

Boston Logan Intl

Mon 13/1

5:50 p.m.-9:56 p.m.

Nonstop7h 06m

C$ 304

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Mon 13/1

11:05 p.m.-7:38 a.m.

Nonstop5h 33m

Boston Logan Intl

Tue 14/1

10:00 a.m.-1:49 p.m.

Nonstop6h 49m

C$ 316

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Wed 12/2

6:00 a.m.-4:55 p.m.

1 stop7h 55m

Boston Logan Intl

Wed 19/2

4:23 p.m.-9:41 p.m.

1 stop32h 18m

C$ 346

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Sun 26/1

6:10 a.m.-10:15 p.m.

1 stop13h 05m

Boston Logan Intl

Fri 31/1

6:05 a.m.-10:35 p.m.

2 stops19h 30m

C$ 416

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Tue 14/1

8:20 a.m.-4:50 p.m.

Nonstop5h 30m

C$ 163

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Wed 8/1

6:00 a.m.-4:55 p.m.

1 stop7h 55m

C$ 173

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Fri 24/1

11:59 p.m.-10:56 a.m.

1 stop7h 57m

C$ 176

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Tue 25/2

1:15 p.m.-9:54 p.m.

Nonstop5h 39m

C$ 179

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Sun 26/1

6:10 a.m.-10:15 p.m.

1 stop13h 05m

C$ 213

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/12

Showing 1-10 of 12 results
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Best time to book a flight from San Francisco to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from San Francisco with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from San Francisco to Boston

Get recent, data-driven insights about flights from San Francisco to Boston including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from San Francisco to Boston?

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Boston. Price data was last updated on 13 December 2024.

Booking 50 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Francisco to Boston. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from San Francisco to Boston?

Currently, December is the cheapest month in which you can book a flight from San Francisco to Boston (average of C$ 287). Flying from San Francisco to Boston in July is currently the most expensive (average of C$ 330). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SFO to BOS?

Find hourly flight availability from San Francisco to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 December 2024.

Unlike at noon, when flights are generally more expensive, you can save up to 48% on flights from San Francisco to Boston by exploring options for tickets in the morning.

Rainfall in Boston by month

Plan your trip to Boston by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Boston ranges from 78.0 - 101.0 mm per month. March is typically the wettest month, when rainfall can reach 101.0 mm. July is typically the driest time to visit Boston when rainfall is around 78.0 mm.

Temperature in Boston by month

Plan your trip to Boston by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Boston, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -1.0 C).

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boston. Reviews last updated 18 December 2024.
Peruse reviews from past customers who have flown with Delta, Southwest and United Airlines from San Francisco to Boston to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,848 reviews
Check prices

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Southwest
8.1
Very good
4,848 reviews
Southwest
8.1
Very good
4,848 reviews
Check prices

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Alaska Airlines
8.0
Very good
9,554 reviews
Southwest
8.1
Very good
4,848 reviews
Check prices

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Delta
8.0
Very good
8,604 reviews
Southwest
8.1
Very good
4,848 reviews
Check prices

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

JetBlue
7.4
Good
3,279 reviews
Southwest
8.1
Very good
4,848 reviews
Check prices

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

United Airlines
7.4
Good
9,055 reviews
Southwest
8.1
Very good
4,848 reviews
Check prices

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this San Francisco to Boston flight route?

    Flights from San Francisco to Boston Logan Intl have been viewed 5 times in the past calendar month.

  • What are the cheapest airlines flying from San Francisco to Boston round-trip?

    Our cheapest airline available from San Francisco to Boston is United Airlines. Our recent data shows that you can find tickets from as low as C$ 303 on this airline. Additional options worth looking into are Delta and JetBlue, starting at C$ 304 and C$ 316 round-trip. These flights start at 42% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from San Francisco to Boston one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as C$ 163. Users have also found prices from C$ 173 and C$ 190 on Alaska Airlines and JetBlue, respectively.

  • What are the most reliable airlines from San Francisco to Boston?

    Consider Etihad Airways (100%), American Airlines (95%) or Fiji Airways (95%) when booking your flight. These represent the most reliable airlines when flying from San Francisco to Boston.

  • Can I find deals for flights from San Francisco to Boston that include hotel bookings?

    Yes. In addition to deals on San Francisco to Boston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Boston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Boston.

  • Can I find deals for business class flights from San Francisco to Boston?

    Yes. Cheapflights offers flight deals from San Francisco to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Francisco to Boston?

    Currently, December is the cheapest month in which you can book a flight from San Francisco to Boston (average of C$ 287). Flying from San Francisco to Boston in July is currently the most expensive (average of C$ 330). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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How does Cheapflights help users find flights from San Francisco to Boston?

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Why should you use Cheapflights to find cheap flight tickets from San Francisco to Boston?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from San Francisco to Boston for you. Better yet — we are completely free to use.

Can Cheapflights find flights from San Francisco to Boston with no change fees?

Yes, we can. To see specific flights from San Francisco to Boston with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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Of course! You can now track prices for flights from San Francisco to Boston and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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