San Francisco (SFO) to Boston (BOS) flight deal in economy from $123

UAUnited Airlines

One Way•Economy

SFO

San Francisco International Airport

San Francisco, United States

BOS

Logan International Airport

Boston, United States

$205 USD

-40%$123 USD

Verified 14 days ago

September 2026

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31$1641$1282$1283$3324$2845$1286$1597$1648$1239$14910$17911$17412$14913$17414$17415$14916$14917$21318$17419$14920$17421$17422$15423$14924$18425$17426$14927$17428$17429$14930$1491$1842$1843$1494$174

Rare Availability

5% of dates checked are available within 10% of the lowest price

Thursday, September 10th, 2026

Outbound Flights

5h 52m·Nonstop

$179 USD

SFOSep 10 14:07

→

BOSSep 10 22:59

UA 2634Boeing 737MAX 9 Passenger

9h 15m·1 stop

$189 USD

SFOSep 10 00:35

→

ORDSep 10 06:56

UA 2847Airbus A321neo

2h 11m layover

ORDSep 10 09:07

→

BOSSep 10 12:50

UA 1117Boeing 737MAX 9 Passenger

5h 52m·Nonstop

$208 USD

SFOSep 10 12:10

→

BOSSep 10 21:02

UA 1372Boeing 737MAX 9 Passenger

5h 55m·Nonstop

$233 USD

SFOSep 10 07:00

→

BOSSep 10 15:55

UA 371Boeing 737MAX 9 Passenger

5h 52m·Nonstop

$233 USD

SFOSep 10 21:10

→

BOSSep 11 06:02

UA 796Boeing 737MAX 9 Passenger

5h 56m·Nonstop

$259 USD

SFOSep 10 23:18

→

BOSSep 11 08:14

UA 1665Boeing 737MAX 9 Passenger

5h 55m·Nonstop

$273 USD

SFOSep 10 08:12

→

BOSSep 10 17:07

UA 2647Boeing 737MAX 9 Passenger

5h 54m·Nonstop

$273 USD

SFOSep 10 10:16

→

BOSSep 10 19:10

UA 2356Boeing 737MAX 8 Passenger

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