United Airlines Boston to San Francisco Flights

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Cheapflightsplus.com will find cheap United Airlines flights from Boston to San Francisco. Compare airline ticket prices and book air tickets starting from $129 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of United Airlines, arrivals and departure details below.

Find Cheap Airfare Boston (MA) — San Francisco (CA) by United Airlines

To find cheap tickets choose a day of your departure with attractive price on the graph below and click «Find flights». For round trip flights please click «Check prices for return flight». The cheapest airfare is in june: one-way - $129, two-way – $221.

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Cheap Flights from Boston to San Francisco by United Airlines

Look at the list of plane tickets for the most popular direct and connecting flights by United Airlines, their prices start from $129. The fastest nonstop flight takes 6h 28m. The fastest connecting flight — 8h 11m.

Price	Departure	Arrival	Flight Time	Airline	Flight
from $129 Find flight	8:15 am Boston Logan	11:46 am San Francisco San Francisco	6h 31m	United Airlines	UA1008
from $129 Find flight	6:18 pm Boston Logan	9:50 pm San Francisco San Francisco	6h 32m	United Airlines	UA2400
from $129 Find flight	10:30 am Boston Logan	2:01 pm San Francisco San Francisco	6h 31m	United Airlines	UA2279
from $129 Find flight	1:48 pm Boston Logan	5:17 pm San Francisco San Francisco	6h 29m	United Airlines	UA1074
from $129 Find flight	4:20 pm Boston Logan	7:49 pm San Francisco San Francisco	6h 29m	United Airlines	UA733
from $131 Find flight	6:00 am Boston Logan	9:28 am San Francisco San Francisco	6h 28m	United Airlines	UA2441
from $132 Find flight	2:00 pm Boston Logan	5:29 pm San Francisco San Francisco	6h 29m	United Airlines	UA390
from $132 Find flight	10:30 am Boston Logan	2:01 pm San Francisco San Francisco	6h 31m	United Airlines	UA366
from $134 Find flight	6:10 am Boston Logan	11:29 am San Francisco San Francisco	8h 19m layover 0h 42m - Chicago	United Airlines	UA1414 UA1387
from $134 Find flight	5:31 pm Boston Logan	11:59 pm San Francisco San Francisco	9h 28m layover 1h 6m - Houston	United Airlines	UA2474 UA2619
from $134 Find flight	4:57 pm Boston Logan	11:10 pm San Francisco San Francisco	9h 13m layover 1h 38m - Denver	United Airlines	UA800 UA2689
from $134 Find flight	7:45 am Boston Logan	1:40 pm San Francisco San Francisco	8h 55m layover 1h 10m - Chicago	United Airlines	UA1909 UA343
from $134 Find flight	9:30 am Boston Logan	5:47 pm San Francisco San Francisco	11h 17m layover 3h 50m - Washington D.C.	United Airlines	UA530 UA2862
from $134 Find flight	7:44 am Boston Logan	3:33 pm San Francisco San Francisco	10h 49m layover 3h 7m - Chicago	United Airlines	UA1909 UA1878
from $181 Find flight	2:46 pm Boston Logan	8:30 pm San Francisco San Francisco	8h 44m layover 1h 23m - Washington D.C.	United Airlines	UA597 UA1757
from $215 Find flight	7:30 am Boston Logan	3:10 pm San Francisco San Francisco	10h 40m layover 3h 22m - Denver	United Airlines	UA647 UA2688

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*Departure and arrival times are local. Prices are for one-way flights. Information refreshed on 06/06/2025

United Airlines Flight Schedule Boston to San Francisco

Below is a detailed 2025 flight schedule for today, tomorrow and all other days. It may vary depending on season and a day of the week of your desired trip. We recommend booking your itinerary at least 2 weeks prior your travel to get the best price and availability by the airline.

Departure	Flight Details	Flight Time	Price
10:30 am — 2:01 pm	10:30 am — 2:01 pm UA2279 United Airlines Boston — San Francisco	6h 31m	Find flight from$129
10:30 am — 2:01 pm	10:30 am — 2:01 pm UA366 United Airlines Boston — San Francisco	6h 31m	Find flight from$132
10:32 am — 2:03 pm	10:32 am — 2:03 pm UA1482 United Airlines Boston — San Francisco	6h 31m	Find flight from$140
1:48 pm — 5:17 pm	1:48 pm — 5:17 pm UA1074 United Airlines Boston — San Francisco	6h 29m	Find flight from$129
2:00 pm — 5:29 pm	2:00 pm — 5:29 pm UA390 United Airlines Boston — San Francisco	6h 29m	Find flight from$132
4:20 pm — 7:49 pm	4:20 pm — 7:49 pm UA733 United Airlines Boston — San Francisco	6h 29m	Find flight from$129
6:00 am — 9:28 am	6:00 am — 9:28 am UA2441 United Airlines Boston — San Francisco	6h 28m	Find flight from$131
6:18 pm — 9:50 pm	6:18 pm — 9:50 pm UA2400 United Airlines Boston — San Francisco	6h 32m	Find flight from$129
8:15 am — 11:46 am	8:15 am — 11:46 am UA1008 United Airlines Boston — San Francisco	6h 31m	Find flight from$129
11:45 am — 5:46 pm	11:45 am — 2:55 pm UA642 United Airlines Boston — Los Angeles 1h 25m stop 4:20 pm — 5:46 pm UA2019 United Airlines Los Angeles — San Francisco	9h 1m including layover	Find flight from$138
11:50 am — 5:23 pm	11:42 am — 2:15 pm UA414 United Airlines Boston — Denver 1h 18m stop 4:00 pm — 5:50 pm UA2633 United Airlines Denver — San Francisco	8h 33m including layover	Find flight from$140
12:30 pm — 7:03 pm	12:30 pm — 2:20 pm UA1732 United Airlines Boston — Chicago 2h 10m stop 4:30 pm — 7:03 pm UA448 United Airlines Chicago — San Francisco	9h 33m including layover	Find flight from$141
12:45 pm — 6:28 pm	12:30 pm — 2:20 pm UA1732 United Airlines Boston — Chicago 1h 12m stop 3:47 pm — 6:28 pm UA1168 United Airlines Chicago — San Francisco	8h 43m including layover	Find flight from$138
1:35 pm — 6:59 pm	1:35 pm — 2:56 pm UA2454 United Airlines Boston — Newark 59m stop 3:55 pm — 6:59 pm UA2328 United Airlines Newark — San Francisco	8h 24m including layover	Find flight from$140
2:40 pm — 7:57 pm	2:34 pm — 4:18 pm UA721 United Airlines Boston — Washington D.C. 57m stop 5:53 pm — 8:30 pm UA1757 United Airlines Washington D.C. — San Francisco	8h 17m including layover	Find flight from$140
3:18 pm — 9:23 pm	3:15 pm — 5:05 pm UA1989 United Airlines Boston — Chicago 1h 30m stop 6:35 pm — 9:23 pm UA2179 United Airlines Chicago — San Francisco	9h 5m including layover	Find flight from$141
3:30 pm — 8:54 pm	3:25 pm — 6:09 pm UA2297 United Airlines Boston — Denver 1h 4m stop 7:30 pm — 9:17 pm UA2681 United Airlines Denver — San Francisco	8h 24m including layover	Find flight from$138
4:57 pm — 11:10 pm	4:57 pm — 7:46 pm UA800 United Airlines Boston — Denver 1h 38m stop 9:24 pm — 11:10 pm UA2689 United Airlines Denver — San Francisco	9h 13m including layover	Find flight from$134
5:05 pm — 10:50 pm	4:57 pm — 7:46 pm UA800 United Airlines Boston — Denver 1h 25m stop 9:24 pm — 11:09 pm UA746 United Airlines Denver — San Francisco	8h 45m including layover	Find flight from$138
5:31 pm — 11:59 pm	5:31 pm — 8:50 pm UA2474 United Airlines Boston — Houston 1h 6m stop 9:56 pm — 11:59 pm UA2619 United Airlines Houston — San Francisco	9h 28m including layover	Find flight from$134
7:44 am — 3:33 pm	7:44 am — 9:39 am UA1909 United Airlines Boston — Chicago 3h 7m stop 12:46 pm — 3:33 pm UA1878 United Airlines Chicago — San Francisco	10h 49m including layover	Find flight from$134
7:45 am — 1:40 pm	7:44 am — 9:39 am UA1909 United Airlines Boston — Chicago 1h 10m stop 10:53 am — 1:40 pm UA343 United Airlines Chicago — San Francisco	8h 55m including layover	Find flight from$134
8:59 pm — 6:42 am +1 day	8:59 pm — 11:41 pm UA2413 United Airlines Boston — Denver 5h 19m stop 5:00 am — 6:42 am UA2367 United Airlines Denver — San Francisco	12h 43m including layover	Find flight from$233
9:30 am — 5:47 pm	9:30 am — 11:10 am UA530 United Airlines Boston — Washington D.C. 3h 50m stop 3:00 pm — 5:47 pm UA2862 United Airlines Washington D.C. — San Francisco	11h 17m including layover	Find flight from$134
9:30 am — 3:23 pm	9:30 am — 11:13 am UA2098 United Airlines Boston — Washington D.C. 1h 22m stop 12:35 pm — 3:23 pm UA1434 United Airlines Washington D.C. — San Francisco	8h 53m including layover	Find flight from$138

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times are local. Last updated on 06/06/2025

Flight Information

There are 9 flights by United Airlines from Boston to San Francisco every week with departures from Logan, Boston City Heliport, Boston RT128 Rail, Boston South Rail. All flights arrive at San Francisco, Embarkadero, China Basin Heliport.

Departures start from 10:00 am to 9:43 am. Nonstop flight is 6h 28m. The time difference between Boston and San Francisco is 3h.

The fastest flight 6h 28m
Average flight time 6h 31m
The earliest flight 10:00 am
The latest flight 9:43 am
Distance 2698 ml

The cheapest months for traveling to San Francisco are june (from 104 $), november (from 129 $), september (from 173 $).

The most expensive and popular months are may (from 211 $), december (from 193 $), july (from 185 $).

The cheapest flight by United Airlines that our users were able to find is $129. This airfare is economy class on one-way UA1008 flight for September 27, 2025 leaving Logan in Boston at 8:15 am, it includes all taxes and additional fees.

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United Airlines Airplanes on the Route

List of the most popular United Airlines airplanes flying from Boston to San Francisco:

Other Popular Airlines on the Route

Besides United Airlines there are other 7 airline carriers between Boston and San Francisco. Please review schedules and prices from the most popular airlines to find the best airfare deals from Boston to San Francisco.

Nonstop flights

There are 19 direct flights every day from Boston. Airlines and fares are below:

AS - Alaska Airlines

from $95

Find
HA - Hawaiian Airlines

from $92

Find

See more direct flights

Connecting Flights

List of flights with layovers (1 and more stops):

AS - Alaska Airlines

from $111

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F9 - Frontier Airlines

from $93

Find
SY - Sun Country Airlines

from $123

Find
TK - Turkish Airlines

from $1175

Find
HA - Hawaiian Airlines

from $105

Find
G4 - Allegiant Air

from $148

Find
NK - Spirit Airlines

from $158

Find

See more connecting flights

How to book an air ticket yourself?

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