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Find cheap one-way flights from San Francisco to Boston starting at US$99.

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

  • One way
  • Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to book flights from San Francisco to Boston?

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Cheapest airlines flights from San Francisco to Boston

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Delta Air Lines
From US$99
Frontier Airlines
From US$104
Jetblue Airways
From US$122
Alaska Airlines
From US$126
United Airlines
From US$150
Southwest Airlines
From US$162
American Airlines
From US$217
Sun Country Airlines
From US$231
Hawaiian Airlines
From US$525
ANA airlines

Find more flights and airlines

Find cheap flights from San Francisco to Boston by different airports

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from San Francisco to Boston.

  • Cheapest
    Delta Air Lines
    SFO
    07:00
    5h 45m
    Direct
    BOS
    15:45
    San Francisco International Airport - General Edward Lawrence Logan International Airport
    Tue, May 7Delta Air Lines
    US$99
  • Delta Air Lines
    SFO
    07:00
    5h 45m
    Direct
    BOS
    15:45
    San Francisco International Airport - General Edward Lawrence Logan International Airport
    Tue, May 7Delta Air Lines
    US$99
    Find More Flights

Frequently Asked Questions

  • When are flight tickets from San Francisco (SFO) to Boston (BOS) the cheapest?

    Airlines adjust prices for flights from San Francisco to Boston based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much do flights from San Francisco (SFO) to Boston (BOS) cost?

    According to Trip.com's data, the lowest price is around $449.
  • How long does it take to fly from San Francisco (SFO) to Boston (BOS) and what is the distance?

    It takes around 6 hours 9 minutes to fly from San Francisco (SFO) to Boston (BOS).
  • What are the most popular airlines that fly from San Francisco (SFO) to Boston (BOS)?

San Francisco to Boston Flight Information

Cheapest nonstop flight price

$98

Cheapest round-trip ticket price

$190

Off-season for travel

November

Peak season for travel

September

What You Should Know about Flights from San Francisco to Boston