Cheap Flights from Boston to San Francisco
Browse current best options from Boston. Become a member to unlock all deals and get alerts when new deals appear.
Deals from
Boston
RatePunk searches hundreds of travel sites at once for deals on flights to San Francisco
Prices updated 24 days ago
486,190 searches this week
171 airlines compared
80%+ AI score for best value
Fares are subject to change and may not be available for all dates. (Data last updated May 29, 2026.)
Today’s best flight deals from Boston to San Francisco
Explore current cheapest deals departing from Boston to San Francisco
Round trip
Sort by: Cheapest
August 22 - August 25
BOS - San Francisco
$319
$236
Round trip
August 12 - August 18
BOS - San Francisco
$306
$236
Round trip
August 18 - August 25
BOS - San Francisco
$308
$237
Round trip
September 25 - September 28
BOS - San Francisco
$340
$240
Round trip
September 11 - September 14
BOS - San Francisco
$327
$241
Round trip
September 18 - September 25
BOS - San Francisco
$322
$242
Round trip
September 23 - September 30
BOS - San Francisco
$330
$244
Round trip
August 19 - August 25
BOS - San Francisco
$309
$245
Round trip
September 10 - September 14
BOS - San Francisco
$327
$245
Round trip
September 8 - September 14
BOS - San Francisco
$317
$245
Round trip
Unlock all 500+ flight deals to San Francisco and get alerts when great deals appear
Route Intelligence — 486,190 Searches this Week
Insights for flights from Boston to San Francisco
How much is a round trip from Boston to San Francisco
Regular price: $267 - $476
Prices for flights from Boston to San Francisco are currently below the regular range.
The regular price range for flights from Boston to San Francisco is $267 to $476. The current lowest deal is $236 with JetBlue Airways, for travel from Aug 22 to Aug 25.
now $236
Low $267
High $476
The cheapest time to fly from Boston to San Francisco
The cheapest month to fly from Boston to San Francisco is January, with a median price of $182. The most expensive month is June, with a median price of $592. Prices are generally lower from January to November.
January
Flights from $182
June
Flights from $592
Direct flights from Boston to San Francisco
JetBlue Airways
Last-minute flights going from Boston to San Francisco
Wed, Jul 1
BOS - San Francisco
Boston (BOS) - San Francisco (SFO)
JetBlue Airways
$295
$259
One-way
Thu, Jul 2
BOS - San Francisco
Boston (BOS) - San Francisco (SFO)
JetBlue Airways
$321
$268
One-way
Thu, Jul 2
BOS - San Francisco
Boston (BOS) - San Francisco (SFO)
Deutsche Luft Hansa
$327
$287
One-way
Fri, Jul 3
BOS - San Francisco
Boston (BOS) - San Francisco (SFO)
Deutsche Luft Hansa
$344
$287
One-way
Sat, Jul 4
BOS - San Francisco
Boston (BOS) - San Francisco (SFO)
JetBlue Airways
$341
$284
One-way
Sat, Jul 4
BOS - San Francisco
Boston (BOS) - San Francisco (SFO)
Frontier Airlines
$361
$287
One-way
Biggest price drops on these dates for flights from Boston to San Francisco
Aug 21 - Aug 25
$371 → $253
32%
Aug 13 - Aug 18
$368 → $259
30%
Aug 18 - Aug 22
$374 → $266
29%
Aug 26 - Aug 29
$372 → $266
28%
Popular Airports to fly from Boston to San Francisco
Boston - San Francisco route insights
💸 Price insights
Recent fares are below the typical level
Recent fares from Boston to San Francisco are below the typical level, with deals around $236.
📅 Best time to fly
January is historically cheapest at $182
Historically, January is the cheapest month to fly from Boston to San Francisco, with a median price of $182.
⏱️ Flight duration
Flights typically take 12h 25m
Flights from Boston to San Francisco typically take 12 hours and 25 minutes, covering a long-haul distance.
✈️ Airlines & availability
Direct flights are a mixed share
Direct flights make up a mixed share of deals, with connecting flights typically having 2 stopovers.
🏆 Airline highlight
JetBlue Airways offers direct flights
JetBlue Airways is an airline offering direct flights for the Boston to San Francisco route.
🎯 Booking tip
Deals are frequent for this route
Deals for flights from Boston to San Francisco are frequent, with over 1 deal per day.
Boston main airports to depart from
Logan International (BOS)
Logan International Airport is a convenient option for flights from Boston to San Francisco.
📍 ~5 km from Boston city center (reachable by car or public transport)
💸 Flights from ~$236
San Francisco main airports to arrive at
San Francisco International (SFO)
San Francisco International Airport is a major gateway to San Francisco and the Bay Area.
📍 ~20 km from city center (reachable by public transport, taxi, or ride-share).
💸 Flights from ~$236
Airports nearby San Francisco used as alternative
Oakland International (OAK)
Oakland International is a useful alternative with high flight frequency and direct BART public transit access.
📍 ~19 km from San Francisco (reachable by public transit)
💸 Flights from ~$265
San Jose International (SJC)
San Jose International is a major international airport serving the South Bay tech corridor with fewer weather delays.
📍 ~60 km from San Francisco (reachable by car)
💸 Flights from ~$233
Sacramento International (SMF)
Sacramento International offers a robust domestic route network for travelers in the northern and eastern metro areas.
📍 ~120 km from San Francisco (reachable by car)
💸 Flights from ~$246
Charles M. Schulz–Sonoma County (STS)
Charles M. Schulz–Sonoma County is convenient for travelers in the North Bay and Wine Country.
📍 ~95 km from San Francisco (reachable by car)
💸 Flights from ~$317
Monterey Regional (MRY)
Monterey Regional is an alternative for travelers in the southern coastal region with a less crowded environment.
📍 ~140 km from San Francisco (reachable by car)
💸 Flights from ~$352
Business & First Class Flight Deals to San Francisco
Discover luxury on the budget with premium cabin class on flights from Boston to San Francisco.
Elite
Best Elite deals to San Francisco
Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.
From BOS
Elite
Jul 14
San Francisco, United States
94% AI deal score
$1,558
$881
Save $677
From BOS
Elite
Jul 15
San Francisco, United States
94% AI deal score
$1,559
$881
Save $678
From BOS
Elite
Jul 04
San Francisco, United States
94% AI deal score
$1,606
$912
Save $694
From BOS
Elite
Jul 01
San Francisco, United States
94% AI deal score
$1,601
$912
Save $689
From BOS
Elite
Jul 15
San Francisco, United States
93% AI deal score
$1,573
$902
Save $671
From BOS
Elite
Jul 04
San Francisco, United States
93% AI deal score
$1,542
$912
Save $630
From BOS
Elite
Jul 23
San Francisco, United States
93% AI deal score
$1,573
$912
Save $661
From BOS
Elite
Jul 09
San Francisco, United States
93% AI deal score
$1,530
$912
Save $618
From BOS
Elite
Jul 11
San Francisco, United States
93% AI deal score
$1,549
$914
Save $635
From BOS
Elite
Jul 11
San Francisco, United States
93% AI deal score
$1,577
$927
Save $650
From BOS
Elite
Jul 22
San Francisco, United States
93% AI deal score
$1,559
$932
Save $627
From BOS
Elite
Jul 13
San Francisco, United States
93% AI deal score
$1,591
$932
Save $659
From BOS
Elite
Jul 09
San Francisco, United States
93% AI deal score
$1,548
$933
Save $615
From BOS
Elite
Jul 24
San Francisco, United States
93% AI deal score
$1,573
$934
Save $639
From BOS
Elite
Jun 25
San Francisco, United States
92% AI deal score
$2,435
$1,446
Save $989
From BOS
Elite
Aug 29
San Francisco, United States
92% AI deal score
$1,599
$917
Save $682
From BOS
Elite
Aug 19
San Francisco, United States
92% AI deal score
$1,594
$932
Save $662
From BOS
Elite
Aug 19
San Francisco, United States
92% AI deal score
$1,652
$932
Save $720
From BOS
Elite
Aug 18
San Francisco, United States
92% AI deal score
$1,594
$932
Save $662
From BOS
Elite
Jun 29
San Francisco, United States
92% AI deal score
$1,283
$933
Save $350
From BOS
Elite
Aug 12
San Francisco, United States
91% AI deal score
$1,993
$1,327
Save $666
From BOS
Elite
Jul 04
San Francisco, United States
91% AI deal score
$2,175
$1,307
Save $868
From BOS
Elite
Jul 13
San Francisco, United States
91% AI deal score
$2,090
$1,317
Save $773
From BOS
Elite
Jul 13
San Francisco, United States
91% AI deal score
$2,239
$1,399
Save $840
From BOS
Elite
Aug 05
San Francisco, United States
91% AI deal score
$2,314
$1,412
Save $902
From BOS
Elite
Jul 31
San Francisco, United States
91% AI deal score
$2,208
$1,422
Save $786
From BOS
Elite
Jun 30
San Francisco, United States
91% AI deal score
$2,386
$1,477
Save $909
From BOS
Elite
Sep 02
San Francisco, United States
91% AI deal score
$1,340
$912
Save $428
From BOS
Elite
Sep 05
San Francisco, United States
91% AI deal score
$1,392
$912
Save $480
From BOS
Elite
Sep 05
San Francisco, United States
91% AI deal score
$1,365
$922
Save $443
From BOS
Elite
Jul 13
San Francisco, United States
90% AI deal score
$1,857
$1,352
Save $505
From BOS
Elite
Aug 30
San Francisco, United States
90% AI deal score
$1,967
$1,422
Save $545
From BOS
Elite
Aug 13
San Francisco, United States
90% AI deal score
$1,860
$1,307
Save $553
From BOS
Elite
Jul 09
San Francisco, United States
90% AI deal score
$1,786
$1,327
Save $459
From BOS
Elite
Jul 10
San Francisco, United States
90% AI deal score
$2,131
$1,379
Save $752
From BOS
Elite
Jul 10
San Francisco, United States
90% AI deal score
$2,131
$1,379
Save $752
From BOS
Elite
Jul 01
San Francisco, United States
90% AI deal score
$1,903
$1,389
Save $514
From BOS
Elite
Jul 11
San Francisco, United States
90% AI deal score
$2,092
$1,399
Save $693
From BOS
Elite
Jul 10
San Francisco, United States
90% AI deal score
$2,168
$1,422
Save $746
From BOS
Elite
Jul 01
San Francisco, United States
90% AI deal score
$2,221
$1,442
Save $779
From BOS
Elite
Sep 01
San Francisco, United States
90% AI deal score
$1,280
$914
Save $366
From BOS
Elite
Sep 01
San Francisco, United States
90% AI deal score
$1,299
$924
Save $375
From BOS
Elite
Sep 03
San Francisco, United States
90% AI deal score
$1,364
$933
Save $431
From BOS
Elite
Jul 04
San Francisco, United States
89% AI deal score
$1,728
$1,276
Save $452
From BOS
Elite
Jul 04
San Francisco, United States
89% AI deal score
$1,669
$1,297
Save $372
From BOS
Elite
Jul 04
San Francisco, United States
89% AI deal score
$1,709
$1,297
Save $412
From BOS
Elite
Jul 09
San Francisco, United States
89% AI deal score
$1,739
$1,297
Save $442
From BOS
Elite
Jul 11
San Francisco, United States
89% AI deal score
$1,780
$1,352
Save $428
From BOS
Elite
Jul 04
San Francisco, United States
89% AI deal score
$1,863
$1,369
Save $494
From BOS
Elite
Jul 10
San Francisco, United States
89% AI deal score
$1,784
$1,369
Save $415
From BOS
Elite
Jul 07
San Francisco, United States
89% AI deal score
$1,926
$1,389
Save $537
From BOS
Elite
Jul 04
San Francisco, United States
89% AI deal score
$1,638
$1,296
Save $342
From BOS
Elite
Jul 01
San Francisco, United States
89% AI deal score
$1,633
$1,296
Save $337
From BOS
Elite
Jun 29
San Francisco, United States
89% AI deal score
$1,608
$1,337
Save $271
From BOS
Elite
Jul 09
San Francisco, United States
88% AI deal score
$1,686
$1,352
Save $334
From BOS
Elite
Jul 10
San Francisco, United States
88% AI deal score
$1,739
$1,352
Save $387
From BOS
Elite
Jul 02
San Francisco, United States
88% AI deal score
$1,756
$1,387
Save $369
From BOS
Elite
Jul 04
San Francisco, United States
88% AI deal score
$1,945
$1,478
Save $467
From BOS
Elite
Sep 04
San Francisco, United States
88% AI deal score
$1,613
$1,337
Save $276
From BOS
Elite
Sep 04
San Francisco, United States
88% AI deal score
$1,673
$1,362
Save $311
From BOS
Elite
Aug 19
San Francisco, United States
88% AI deal score
$1,819
$1,401
Save $418
From BOS
Elite
Jul 12
San Francisco, United States
88% AI deal score
$1,722
$1,409
Save $313
From BOS
Elite
Jun 29
San Francisco, United States
87% AI deal score
$1,663
$1,345
Save $318
From BOS
Elite
Sep 03
San Francisco, United States
87% AI deal score
$1,791
$1,422
Save $369
From BOS
Elite
Jul 03
San Francisco, United States
87% AI deal score
$1,903
$1,478
Save $425
From BOS
Elite
Jul 02
San Francisco, United States
87% AI deal score
$1,892
$1,478
Save $414
From BOS
Elite
Jul 03
San Francisco, United States
83% AI deal score
$1,863
$1,467
Save $396
From BOS
Elite
Jul 01
San Francisco, United States
83% AI deal score
$1,856
$1,478
Save $378
From BOS
Elite
Jul 05
San Francisco, United States
83% AI deal score
$1,899
$1,493
Save $406
From BOS
Elite
Jul 14
San Francisco, United States
83% AI deal score
$1,577
$1,367
Save $210
From BOS
Elite
Jul 28
San Francisco, United States
82% AI deal score
$1,593
$1,348
Save $245
From BOS
Elite
Jul 04
San Francisco, United States
82% AI deal score
$1,705
$1,415
Save $290
From BOS
Elite
Jul 07
San Francisco, United States
82% AI deal score
$1,717
$1,415
Save $302
From BOS
Elite
Jul 02
San Francisco, United States
82% AI deal score
$1,721
$1,415
Save $306
From BOS
Elite
Jul 03
San Francisco, United States
82% AI deal score
$1,701
$1,415
Save $286
From BOS
Elite
Jul 01
San Francisco, United States
82% AI deal score
$1,722
$1,415
Save $307
From BOS
Elite
Jul 13
San Francisco, United States
82% AI deal score
$1,734
$1,448
Save $286
From BOS
Elite
Jun 30
San Francisco, United States
82% AI deal score
$1,778
$1,477
Save $301
From BOS
Elite
Jul 12
San Francisco, United States
81% AI deal score
$1,595
$1,399
Save $196
From BOS
Elite
Jul 31
San Francisco, United States
81% AI deal score
$1,644
$1,422
Save $222
From BOS
Elite
Jul 03
San Francisco, United States
81% AI deal score
$1,729
$1,459
Save $270
From BOS
Elite
Jul 03
San Francisco, United States
80% AI deal score
$1,670
$1,465
Save $205
From BOS
Elite
Jul 24
San Francisco, United States
79% AI deal score
$2,181
$1,932
Save $249
From BOS
Elite
Jul 15
San Francisco, United States
68% AI deal score
$2,222
From BOS
Elite
Jul 15
San Francisco, United States
67% AI deal score
$2,628
From BOS
Elite
Jul 14
San Francisco, United States
67% AI deal score
$3,013
From BOS
Elite
Jul 14
San Francisco, United States
67% AI deal score
$3,420
From BOS
Elite
Oct 24
San Francisco, United States
67% AI deal score
$3,747
From BOS
Elite
Oct 03
San Francisco, United States
67% AI deal score
$4,864
From BOS
Elite
Oct 10
San Francisco, United States
67% AI deal score
$4,864
From BOS
Elite
Aug 22
San Francisco, United States
67% AI deal score
$3,545
From BOS
Elite
Oct 24
San Francisco, United States
67% AI deal score
$4,005