$119 Cheap United flights from Boston to San Francisco (BOS to SFO)

Find The Best Day To Fly from Boston to San Francisco

Flexible dates

Amazing United BOS to SFO Flight Deals

The cheapest flights to San Francisco Intl. found within the past 7 days were $194 round trip and $119 one way. Prices and availability subject to change. Additional terms may apply.

Sat, May 10 - Sat, May 17
BOS
Boston
SFO
San Francisco
$194 Roundtrip, found 1 day ago
$194
Roundtrip
found 1 day ago
Select United flight, departing Sat, May 10 from Boston to San Francisco, returning Sat, May 17, priced at $194 found 1 day ago
Wed, Feb 26 - Tue, Mar 11
BOS
Boston
SFO
San Francisco
$197 Roundtrip, found 3 days ago
$197
Roundtrip
found 3 days ago
Select United flight, departing Wed, Feb 26 from Boston to San Francisco, returning Tue, Mar 11, priced at $197 found 3 days ago
Wed, Feb 26 - Tue, Mar 11
BOS
Boston
SFO
San Francisco
$203 Roundtrip, found 3 days ago
$203
Roundtrip
found 3 days ago
Select United flight, departing Wed, Feb 26 from Boston to San Francisco, returning Tue, Mar 11, priced at $203 found 3 days ago
Sat, May 10 - Sat, May 17
BOS
Boston
SFO
San Francisco
$204 Roundtrip, found 1 day ago
$204
Roundtrip
found 1 day ago
Select United flight, departing Sat, May 10 from Boston to San Francisco, returning Sat, May 17, priced at $204 found 1 day ago
Fri, Mar 14 - Wed, Mar 19
BOS
Boston
SFO
San Francisco
$211 Roundtrip, found 1 day ago
$211
Roundtrip
found 1 day ago
Select United flight, departing Fri, Mar 14 from Boston to San Francisco, returning Wed, Mar 19, priced at $211 found 1 day ago
Wed, Feb 26 - Tue, Mar 11
BOS
Boston
SFO
San Francisco
$213 Roundtrip, found 3 days ago
$213
Roundtrip
found 3 days ago
Select United flight, departing Wed, Feb 26 from Boston to San Francisco, returning Tue, Mar 11, priced at $213 found 3 days ago

SFO From BOS Economy Coach Packages on Similar Airlines

Price found within the past 48 hours. Click for updated prices.
Union Square Plaza Hotel

Union Square Plaza Hotel

2 out of 5
per person
May 9 - May 13
found 15 hours ago
Roundtrip flight included
Boston (BOS) to San Francisco (SFO)
Hotel Zetta San Francisco

Hotel Zetta San Francisco

4 out of 5
Save 100% on your flight
per person
Apr 5 - Apr 10
found 23 hours ago
Roundtrip non-stop flight included
Boston (BOS) to San Francisco (SFO)
Hotel Fiona

Hotel Fiona

3.5 out of 5
per person
Apr 5 - Apr 10
found 23 hours ago
Roundtrip non-stop flight included
Boston (BOS) to San Francisco (SFO)
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Frequently asked questions

Can I catch a flight from BOS to SFO right now?
It’s prudent to find out about any travel advice reports and quarantine requirements in place in your destination city. Ensure you visit the Covid-19 Travel Advisor for up-to-date info on flying to San Francisco Airport from Logan Intl. Airport (BOS).
What terminal is United Airlines at Logan Intl. Airport (BOS)?
If you’re flying with United Airlines from Logan Intl. Airport, you’ll generally be boarding from terminal B. If you’re jetting to SFO from here, you’re likely to be disembarking at terminal 3.
Are there United Airlines non-stop flights from BOS to SFO?
Yes, there are. Save yourself time and trouble and fly straight from BOS to SFO with United Airlines. Avoid transfers, lessen the risk of losing your belongings and get your vacation underway faster — direct flights are preferred by many wise travelers.
How long is a United Airlines flight from BOS to SFO?
Depending on no delays and good weather, your United Airlines flight from BOS to SFO should take about 7 hours and 30 minutes. That means you’ve got ample time to eat a meal, squeeze in a nap and fine tune your travel itinerary before touchdown.
What type of aircraft does United Airlines fly from BOS to SFO?
The Boeing 757-200 and the Boeing 737-800 are the aircraft models most often flown by United Airlines between Logan Intl. Airport (BOS) and San Francisco Intl. Airport (SFO).
How many direct and indirect flights does United Airlines fly from BOS to SFO?
When jetting from BOS to SFO, you’ll discover around 6 United Airlines daily flights to pick from.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to SFO, please visit our Customer Service Portal.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Discover our best United flight from Boston BOS to San Francisco SFO 

To find the best deals on flights to Boston from San Francisco with United, just enter your travel dates, filter by United, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from Boston BOS to San Francisco SFO with United 

If you’re planning a round trip, booking return flights with United is usually the most cost-effective option. With airfares ranging from $194 to $213, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way United flights from Boston BOS to San Francisco SFO 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way United flight from Boston to San Francisco costs from $119. Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to San Francisco SFO from  Boston BOS with United 

To find a cheap United flight from Boston BOS to San Francisco SFO, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on United flights from Boston BOS to San Francisco SFO 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as May, or if you book a flight with a stopover. 

 

Find nonstop flights from Boston BOS to San Francisco SFO with United 

If you’re keen to be on San Francisco soil fast, don’t waste time with a stopover—filter your search results to show direct United flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for United flights from Boston BOS to San Francisco SFO 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to San Francisco SFO from  Boston BOS with United on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

United Airports
Hop on a(n) United flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
ORDUSAO'Hare Intl.227
DENUSADenver Intl.226
IAHUSAGeorge Bush Intercontinental136
IADUSAWashington Dulles Intl.100
SFOUSASan Francisco Intl.64
LAXUSALos Angeles Intl.23
EWRUSALiberty Intl.20
FRADEUFrankfurt Intl.19
NRTJPNNarita Intl.19
PEKCHNCapital Intl.16

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