$122 Cheap United flights from San Francisco to Boston (SFO to BOS)

Find The Best Day To Fly from San Francisco to Boston

Amazing United SFO to BOS Flight Deals

The cheapest flights to Logan Intl. found within the past 7 days were $237 round trip and $122 one way. Prices and availability subject to change. Additional terms may apply.

BOS From SFO Economy Coach Packages on Similar Airlines

Price found within the past 48 hours. Click for updated prices.
Hampton Inn & Suites Portsmouth Downtown
Raffles Boston
Ocean Air Suites
Don't see what you're looking for?
See all available trips from San Francisco Intl. to Logan Intl.
View all trips

Frequently asked questions

Can I catch a flight from SFO to Logan Intl. Airport (BOS) right now?
For information on any current Logan Intl. Airport quarantine requirements and travel advice, go to the Covid-19 Travel Advisor. Check before you book your flight, so you don't get caught out.
What terminal is United Airlines at San Francisco Airport?
If you're flying with United Airlines from San Francisco Airport, you'll generally be boarding from terminal 3. If you're heading to Logan Intl. Airport (BOS) from here, you're likely to be filing off the aircraft at terminal B.
Are there United Airlines non-stop flights from SFO to BOS?
With United Airlines offering nonstop services from San Francisco Intl. Airport (SFO) to Logan Intl. Airport, you can't go wrong. Say goodbye to the stress, hassle and baggage hiccups often associated with stopovers, and lock in your seat today.
How long is a United Airlines flight from SFO to BOS?
Squeeze in some in-flight shut-eye and begin your getaway feeling refreshed. You'll have enough time to do so when traveling with United Airlines between San Francisco Airport and Logan Intl. Airport, with the flight taking on average 6 hours and 17 minutes.
What type of aircraft does United Airlines fly from SFO to BOS?
United Airlines commonly uses the Boeing 757-200 or the Boeing 737 MAX 9 on the flight path between SFO and BOS.
How many direct and indirect flights does United Airlines fly from SFO to BOS?
You can choose from approximately 6 United Airlines flights daily from SFO to BOS.
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 BOS, 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.
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

Travelers ❤️ these 🏨 after their flight to Boston

Hilton Boston Logan Airport

Hilton Boston Logan Airport

4 out of 5
One Hotel Drive, Boston, MA
This hotel features a restaurant, an indoor pool, and a bar/lounge. Traveling on business? Take advantage of the 24-hour business center, express check-in, and ...
8.8/10 Excellent! (3,412 reviews)
"Everything was on point! Comfy beds, clean spaces, friendly staff, great location, convenient shuttles."

Reviewed on Jul 13, 2025

Hilton Boston Logan Airport
Hyatt Regency Boston Harbor

Hyatt Regency Boston Harbor

4 out of 5
101 Harborside Drive, Boston, MA
This hotel features a restaurant, a 24-hour gym, and a bar/lounge. Guests will appreciate perks like free WiFi and a free airport shuttle. Valet parking, a 24-hour ...
9/10 Wonderful! (1,519 reviews)
"I loved the view of the harbor from my room as well as the restaurant and the overall service. I The hotel was located close to Logan Airport and car rental services. The staff was friendly and helpful."

Reviewed on Jul 13, 2025

Hyatt Regency Boston Harbor
Omni Boston Hotel at the Seaport

Omni Boston Hotel at the Seaport

4 out of 5
450 Summer Street, Boston, MA
A full-service spa, 4 restaurants, and an outdoor pool are all featured at this smoke-free hotel. Relax with a drink at one of the 2 bars/lounges and get perks ...
9/10 Wonderful! (3,688 reviews)
"Property was beautiful and room was spacious and clean. Only wish was that the rooms could get colder than 65. Being in a larger room it didn’t feel cold and woke up a lot readjusting the amount of blankets."

Reviewed on Jul 15, 2025

Omni Boston Hotel at the Seaport
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.