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Cheap Flights from San Francisco to Boston (BOS)
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Average price per month
- Low Season: January
- High Season: October
- Prices for this route are volatile and fluctuate from month to month.
- The cheapest flights are usually bought in January, March and April.
- High season months are September, December and October. However, it's not the rule and you should always search current flight deals.
Price increase as travel date approaches
- Flight prices for this route increase by 49% if you book last minute. Hover on the graph above to see for yourself!.
- To grab the lowest price possible, you should buy your flight around 33 days before departure!
- Consider booking at least 21 days before departure to increase your chances of getting a low price.
- Generally, it's safe to book between 90 and 60 days in advance.
San Francisco to Boston Flight Information
| Flights Depart From | San Francisco (SFO) |
| Flights Arriving To | Boston (BOS) |
| Distance | 4342.58 km |
| Current Price | $236.4 |
| Good Deal | $236.74 |
| Cheapest Airlines | Alaska Airlines, Hawaiian Airlines, JetBlue, Delta Air Lines |
| Popular Airlines | JetBlue, Alaska Airlines, Delta Air Lines, Hawaiian Airlines, American Airlines, United Airlines |
| Flight Duration | 05 hours 47 minutes |
| Flights Depart From |
| San Francisco (SFO) |
| Flights Arrive In |
| Boston (BOS) |
| Distance |
| 4342.58 km |
| Flight Duration |
| 05 hours 47 minutes |
| Current Price |
| $236.4 |
| Good Deal |
| $236.74 |
| Cheapest Airlines |
| Alaska Airlines, Hawaiian Airlines, JetBlue, Delta Air Lines |
| Popular Airlines |
| JetBlue, Alaska Airlines, Delta Air Lines, Hawaiian Airlines, American Airlines, United Airlines |
Most Reliable Airlines flying to Boston
- According to our data, JetBlue, Alaska Airlines and Delta Air Lines have the highest overall rating.
- The following airlines have the highest chance of on time arrivals: Alaska Airlines, Delta Air Lines and American Airlines.
- If legroom is important for you then you should consider flying with JetBlue, Alaska Airlines and American Airlines.
| Airline | Overall Rating | On time arrival | Check-in & Boarding | Cleanliness | Customer Service | Food & Beverage | Entertainment | Legroom | Seat Comfort |
|---|---|---|---|---|---|---|---|---|---|
JetBlue |
4.2 | 4.0 | 4.5 | 4.5 | 4.0 | 4.0 | 4.0 | 4.5 | 4.0 |
Alaska Airlines |
4.1 | 4.5 | 4.5 | 4.5 | 4.5 | 3.5 | 3.5 | 4.0 | 4.0 |
Delta Air Lines |
3.8 | 4.5 | 4.0 | 4.0 | 4.0 | 3.5 | 4.0 | 3.5 | 3.5 |
Hawaiian Airlines |
3.8 | - | 4.0 | 4.0 | 4.0 | 3.5 | 3.5 | 4.0 | 3.5 |
American Airlines |
3.3 | 4.0 | 3.5 | 3.5 | 3.5 | 3.0 | 3.0 | 3.5 | 3.0 |
United Airlines |
3.3 | 4.0 | 3.5 | 3.5 | 3.5 | 3.0 | 3.0 | 3.0 | 3.0 |
Overall Rating
4.0
On time arrival
4.0
Check-in & Boarding
4.5
Cleanliness
4.5
Customer Service
4.0
Food & Beverage
4.0
Entertainment
4.0
Legroom
4.5
Seat Comfort
4.0
Overall Rating
4.0
On time arrival
4.5
Check-in & Boarding
4.5
Cleanliness
4.5
Customer Service
4.5
Food & Beverage
3.5
Entertainment
3.5
Legroom
4.0
Seat Comfort
4.0
Overall Rating
4.0
On time arrival
4.5
Check-in & Boarding
4.0
Cleanliness
4.0
Customer Service
4.0
Food & Beverage
3.5
Entertainment
4.0
Legroom
3.5
Seat Comfort
3.5
Overall Rating
4.0
On time arrival
-
Check-in & Boarding
4.0
Cleanliness
4.0
Customer Service
4.0
Food & Beverage
3.5
Entertainment
3.5
Legroom
4.0
Seat Comfort
3.5
Overall Rating
3.5
On time arrival
4.0
Check-in & Boarding
3.5
Cleanliness
3.5
Customer Service
3.5
Food & Beverage
3.0
Entertainment
3.0
Legroom
3.5
Seat Comfort
3.0
Overall Rating
3.5
On time arrival
4.0
Check-in & Boarding
3.5
Cleanliness
3.5
Customer Service
3.5
Food & Beverage
3.0
Entertainment
3.0
Legroom
3.0
Seat Comfort
3.0
Good to know:
- Logan International is the major airport in Boston and surrounding area.
Enter your preferred departure airport and travel dates into the search form above to unlock the latest Boston flight deals.
Track the flight prices from San Francisco to Boston by subscribing to Fare Alerts to never miss the best deals possible.
Did you know that you could find even better deals when you use our Mobile App?. Awesome Deals
notifications_active In the past few days the following airlines offered the lowest prices from San Francisco to Boston: Alaska Airlines, Hawaiian Airlines, JetBlue and Delta Air Lines..
Alaska AirlinesSat, 23 Aug SFO BOS
Wed, 03 Sep BOS SFO Trip duration: 11 days$236.4
Hawaiian AirlinesSat, 13 Sep SFO BOS
Mon, 22 Sep BOS SFO Trip duration: 9 days$236.59
Alaska AirlinesWed, 17 Sep SFO BOS
Mon, 29 Sep BOS SFO Trip duration: 12 days$236.59
Hawaiian AirlinesMon, 11 Aug SFO BOS
Mon, 08 Sep BOS SFO Trip duration: 28 days$236.59
Alaska AirlinesTue, 23 Sep SFO BOS
Sat, 04 Oct BOS SFO Trip duration: 11 days$236.59
Alaska AirlinesThu, 21 Aug SFO BOS
Tue, 26 Aug BOS SFO Trip duration: 5 days$236.59
Hawaiian AirlinesWed, 01 Oct SFO BOS
Sun, 05 Oct BOS SFO Trip duration: 4 days$236.59
Hawaiian AirlinesMon, 08 Sep SFO BOS
Wed, 10 Sep BOS SFO Trip duration: 2 days$236.59
Alaska AirlinesMon, 01 Sep SFO BOS
Sat, 06 Sep BOS SFO Trip duration: 5 days$236.59
Hawaiian AirlinesMon, 08 Sep SFO BOS
Sun, 14 Sep BOS SFO Trip duration: 6 days$236.59
Alaska AirlinesThu, 21 Aug SFO BOS
Tue, 26 Aug BOS SFO Trip duration: 5 days$236.59
Hawaiian AirlinesSat, 20 Sep SFO BOS
Sat, 27 Sep BOS SFO Trip duration: 7 days$236.78
JetBlueFri, 15 Aug SFO BOS
Sun, 24 Aug BOS SFO Trip duration: 9 days$236.96
JetBlueThu, 23 Oct SFO BOS
Sun, 26 Oct BOS SFO Trip duration: 3 days$236.96
Delta Air LinesFri, 03 Oct SFO BOS
Tue, 14 Oct BOS SFO Trip duration: 11 days$236.96
Delta Air LinesThu, 25 Sep SFO BOS
Thu, 09 Oct BOS SFO Trip duration: 14 days$236.96
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Frequently Asked Questions
- How long is a direct flight from San Francisco to Boston?A direct flight from San Francisco to Boston takes roughly 05 hours 47 minutes.
- How many direct flights are there between San Francisco to Boston daily?On average, there are 86 direct flights from San Francisco to Boston each day.
- Which airlines offer cheap airfare from San Francisco to Boston?That may change at any time. But in the past 14 days, the cheapest tickets we've found were with Alaska Airlines, Hawaiian Airlines, JetBlue and Delta Air Lines.
- Do I need my passport to fly from San Francisco to Boston?Nope, not this time.
- Which airlines fly from San Francisco to Boston most often?JetBlue, Alaska Airlines, Delta Air Lines, Hawaiian Airlines, American Airlines and United Airlines are the top.
- What's the cheapest day to fly from San Francisco to Boston?That depends. Recently, the cheapest day to fly from San Francisco to Boston has been Friday. And the cheapest return flight from Friday has been. That said, the cheapest departure days are constantly changing.
- Which airport will I be flying from in San Francisco?When departing from San Francisco you'll be flying out of San Francisco International.
- Which airport will I be flying from in Boston?When departing from Boston you'll be flying out of Logan International.
- How is Justfly.com so good at finding cheap flights?We've taken an oath of secrecy and vowed never to say. Just kidding. Our team and technology allows us to browse through hundreds of airlines and hundreds of thousands of flights to find the lowest prices. Then we pass the savings on to you.
- Can Justfly.com help me save money in any other way?We're glad you asked. We help you save money with our Fare Alerts, Price Trend charts and multi-ticket bookings. We also help you save on hotels and car rentals.
- How many airlines does Justfly.com search to find affordable flights?We typically search over 400 airlines.
- Can Justfly.com's Price Trend tool really tell me the best time to buy tickets?Absolutely! That's why we've made it accessible to you.
- Will the price of my flight change?Flight prices and availability change often. To counter this, we update the important data as often as possible every step of the way.
- How will I receive my booking confirmation and travel information?We'll send you an email with the important details!
- Can you cancel or change Justfly.com flights?You sure can. But give us a call first. We'll do our best to find a solution. However, in some cases, if we cancel your booking, we'll have to charge an administrative fee of $75 (domestic), $125 (trans-border between Canada and USA) and $200 (international).
- Are Justfly.com's tickets refundable?All bookings are currently non-refundable.
- How do I contact Justfly.com?To find answers to all of your questions, click here to visit our support page.