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Cheap flights from San Francisco to Boston from ₹ 11,679

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 21/8. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BOS
1 Aug — 8 Aug1
1 adult

Cheapflights Tip: The best prices from San Francisco to Boston Logan Intl are usually found in January or February, booked 64 days in advance, depart on a Thursday or Friday and return on a Friday

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 27 July 2025.

Round-trip from

₹ 21,800

One-way from

₹ 11,679

Popular in

December

Cheapest in

January

Average price

₹ 37,458

Good round-trip deal

₹ 22,795 or less

Good one-way deal

₹ 12,312 or less
Alaska Airlines
  • Alaska Airlines
  • 4/9-8/9
  • 2 total stops
  • 38h 52m total
  • San Francisco to Boston
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United Airlines
  • United Airlines
  • 21/8
  • Nonstop
  • 5h 46m total
  • San Francisco to Boston
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Highest demand for flights based on searches. 1% potential increase in price (₹ 36,739 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (₹ 53,056 potential savings vs. average return price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from San Francisco to Boston Logan Intl.
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Price to beat on a one-way flight from San Francisco to Boston Logan Intl.
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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 27 July 2025.

Thu 4/907:10SFO - BOS
1 stop20h 15mAlaska Airlines
Mon 8/918:55BOS - SFO
1 stop18h 37mAlaska Airlines
Deal found 25/7₹ 21,800
Mon 18/819:49SFO - BOS
1 stop8h 41mHawaiian Airlines
Mon 25/820:23BOS - SFO
Nonstop6h 29mHawaiian Airlines
Deal found 24/7₹ 21,886
Sun 7/907:05SFO - BOS
Nonstop5h 50mDelta
Fri 12/920:45BOS - SFO
Nonstop6h 36mDelta
Deal found 27/7₹ 22,406
Fri 5/914:08SFO - BOS
Nonstop5h 47mJetBlue
Sun 7/906:15BOS - SFO
Nonstop6h 32mJetBlue
Deal found 25/7₹ 22,492
Wed 5/1119:10SFO - BOS
2 stops9h 55mSouthwest
Sun 9/1106:10BOS - SFO
1 stop10h 55mSouthwest
Deal found 26/7₹ 24,568

Cheapflights Fare Finder

 
Customise 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 454,620 searches. Data last updated 27 July 2025.
Use the filters below to find and compare flights from San Francisco to Boston that are best for you.

Fly from

San Francisco

Fly to

Boston

Route

Depart

Return

Price

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Thu 4/9

07:10-06:25

1 stop20h 15m

Boston Logan Intl

Mon 8/9

18:55-10:32

1 stop18h 37m

₹ 21,800

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Mon 18/8

19:49-07:30

1 stop8h 41m

Boston Logan Intl

Mon 25/8

20:23-23:52

Nonstop6h 29m

₹ 21,886

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Fri 5/9

14:08-22:55

Nonstop5h 47m

Boston Logan Intl

Sun 7/9

06:15-09:47

Nonstop6h 32m

₹ 22,492

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Sat 6/9

13:00-21:50

Nonstop5h 50m

Boston Logan Intl

Sat 13/9

07:55-11:33

Nonstop6h 38m

₹ 22,838

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Wed 5/11

19:10-08:05

2 stops9h 55m

Boston Logan Intl

Sun 9/11

06:10-14:05

1 stop10h 55m

₹ 24,568

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Thu 21/8

21:30-06:16

Nonstop5h 46m

₹ 11,679

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Fri 5/9

06:00-17:55

1 stop8h 55m

₹ 12,025

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Mon 18/8

21:55-06:35

Nonstop5h 40m

₹ 12,457

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Mon 15/9

06:00-19:25

2 stops10h 25m

₹ 12,976

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Thu 2/10

10:35-23:59

1 stop10h 24m

₹ 13,668

Flights are sorted by cheapest return flights first.

Deals found on 24/7

Showing 1-10 of 12 results
1
2

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 return 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.

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Boston

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

Use this chart to determine the optimal time to book a return flight from San Francisco to Boston. Price data was last updated on 25 July 2025.

The price you pay for your flight from San Francisco to Boston may vary depending on when you book. For the best chance of a lower fare, look to book 64 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, October is the cheapest month in which you can book a flight from San Francisco to Boston (average of ₹ 955). Flying from San Francisco to Boston in August is currently the most expensive (average of ₹ 1,275). 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 27 July 2025.

A simple way to save on the total cost of your ticket is to fly from San Francisco to Boston at midday. If you’re flexible enough to do this you can expect to save up to 49% on your trip compared to booking a flight in the morning.

Weekly flight availability from San Francisco to Boston

Explore weekly flight availability from San Francisco to Boston. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 27 July 2025.

The most flights from SFO to BOS are scheduled on a Sunday (62 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (54 on average).

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 27 July 2025.
Check out reviews from past customers who have flown with Alaska Airlines, Southwest, andDelta from San Francisco to Boston to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Comfort

7.8

Crew

8.5

Overall

8.0

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very Good
10,000 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Comfort

7.8

Crew

8.5

Overall

8.0

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very Good
4,237 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Comfort

7.8

Crew

8.5

Overall

8.0

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very Good
7,970 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Comfort

7.8

Crew

8.5

Overall

8.0

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,598 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Comfort

7.8

Crew

8.5

Overall

8.0

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,886 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Comfort

7.8

Crew

8.5

Overall

8.0

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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.

  • What airports do I use to fly from San Francisco to Boston?

    You will need to book a flight from San Francisco to Boston Logan Intl if you want to fly from San Francisco to Boston. At least 1 airline has flights from San Francisco (SFO) to Logan Intl (BOS) on a regular basis. There are 56 flights to Boston from the San Francisco airport per day. If you manage to book one that is nonstop, then you can expect the flight time from SFO to BOS to be around 5h 41m.

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

    The San Francisco to Boston Logan Intl flight path was viewed by 12 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Currently priced at ₹ 21,800, Alaska Airlines will fly you from San Francisco to Boston and back. In addition to Alaska Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Hawaiian Airlines and JetBlue - these airlines can fly you to your destination from ₹ 21,886 and ₹ 22,492, respectively. Alaska Airlines is 32% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as ₹ 11,679. However, be on the lookout for offers from Alaska Airlines and Delta, as they are both options that can get you from San Francisco to Boston for a low price.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from San Francisco to Boston on time: Etihad Airways (95%), Scandinavian Airlines (89%), Air China (88%).

  • What are the cheapest flights from San Francisco to Boston?

    The cheapest flight price from San Francisco to Boston is ₹ 10,234. On average you can expect to pay ₹ 18,308. The most popular route, (San Francisco - Boston Logan Intl), can usually be booked for ₹ 31,921.

  • 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 holiday 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, October is the cheapest month in which you can book a flight from San Francisco to Boston (average of ₹ 955). Flying from San Francisco to Boston in August is currently the most expensive (average of ₹ 1,275). 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

Travelling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Falmouth
Revere
Waltham

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Other flights to Boston

Explore flights to Boston departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 27 July 2025.
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Top airline flying from San Francisco to Boston

Discover the top airline that operate flights from San Francisco to Boston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 454,620 searches. Data last updated 27 July 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest₹ 16,973Average₹ 24,447FlexibilityNo cancel feeOn-time62%
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights helps you search for flights from San Francisco to Boston via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Boston from San Francisco.

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.

Can Cheapflights notify me if prices for flights from San Francisco to Boston become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Boston from San Francisco today and book when prices fit your budget.

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