$175 United Cheap Flights from Boston to San Francisco

Find The Best Day To Fly from Boston to San Francisco

Amazing United BOS to SFO Flight Deals

The cheapest flights to San Francisco Intl. found within the past 7 days were $290 round trip and $175 one way. Prices and availability subject to change. Additional terms may apply.

Frequently asked questions

CarrierFlightDepart BOSArrive SFOTue
6/28
Wed
6/29
Thu
6/30
Fri
7/1
Sat
7/2
Sun
7/3
Mon
7/4
Stops
UA43306:10 am09:40 amCheck FareCheck FareCheck FareCheck FareCheck Fare
-
Check Fare
0 Stops
UA100808:50 am00:18 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
UA47711:25 am02:51 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
UA117203:01 pm06:35 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
UA240006:23 pm10:00 pmCheck FareCheck FareCheck FareCheck FareCheck Fare
-
Check Fare
0 Stops

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 5 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 $290 to $290, 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 $175. 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 November, 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 6 hour(s) 26 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

Travelers ❤️ these 🏨 after their flight to San Francisco

SFO Airport Hotel, El Rancho Inn, BW Signature Collection
SFO Airport Hotel, El Rancho Inn, BW Signature Collection
3 out of 5
1100 El Camino Real, Millbrae, CA, 94030
The price is $124 per night from Jul 3 to Jul 4
This motel features an outdoor pool and a spa tub. Business travelers can take advantage of the free WiFi in public areas. Self parking, a lobby fireplace, and ...
4/5 Very Good! (41 reviews)
"it was better than cats!!"

Reviewed on May 16, 2022

SFO Airport Hotel, El Rancho Inn, BW Signature Collection
The Westin San Francisco Airport
The Westin San Francisco Airport
4 out of 5
1 Old Bayshore Hwy, Millbrae, CA, 94030
The price is $159 per night from Jul 3 to Jul 4
This hotel features a restaurant, an indoor pool, and a bar/lounge. Traveling on business? Take advantage of the 10 conference rooms, 24-hour business center, ...
4.4/5 Wonderful! (26 reviews)
"Nothing unusual state of West and Western in China and it was out of the world will disappointed"

Reviewed on May 16, 2022

The Westin San Francisco Airport
Grand Hyatt at SFO
Grand Hyatt at SFO
4 out of 5
55 S McDonnell Rd, San Francisco, CA, 94128
The price is $304 per night from Jul 16 to Jul 17
This hotel features a restaurant, a 24-hour gym, and a bar/lounge. Traveling on business? Take advantage of the free WiFi in public areas, laundry service, and ...
5/5 Exceptional! (22 reviews)
"Very convenient hotel!"

Reviewed on Jun 11, 2022

Grand Hyatt at SFO
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.