Flights from Boston to San Francisco, United States

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Did you mean flights from San Francisco to Boston?

Boston to San Francisco Last modified: Mar 24, 2019 4:21 -04:00

We've scanned 48,195,047,545 round trip itineraries and found the cheapest flights to San Francisco. United & Alaska frequently offer the best deals to San Francisco flights, or select your preferred carrier below to see the cheapest days to fly.

United
BOSSFO
Wed 4/24
nonstop
SFOBOS
Wed 4/24
nonstop
$191
Alaska
BOSSFO
Tue 4/23
nonstop
SFOBOS
Sat 5/4
nonstop
$197
JetBlue
BOSSFO
Tue 4/23
nonstop
SFOBOS
Wed 5/1
nonstop
$197
American
BOSSFO
Tue 4/23
1 stop
SFOBOS
Sat 5/4
1 stop
$211
Sun Country
BOSSFO
Tue 4/16
1 stop
SFOBOS
Sun 4/21
1 stop
$246
Frontier
BOSSFO
Wed 5/1
1 stop
SFOBOS
Mon 5/6
1 stop
$278

How Much is a Flight from Boston to San Francisco?

We have collected flight cost data from across the web for travel from Boston to San Francisco, and have found the average flight price for this trip to be $223.

Where To Buy Cheap Flights from Boston to San Francisco?

The best way to find a great deal on airfare is to search multiple sites. When you run a search on FareCompare, we search multiple sites and fare sources all at once so you don't have to - which is why we think FareCompare is the best place to find cheap tickets. Airlines can adjust prices for tickets from Boston to San Francisco based on the day and time that you decide to book your flight. We have collected data from all airlines, and have found that Tuesdays, Wednesdays, and Saturdays are often the best days to book flights. If you'd like to learn more, read our article about the best time to buy airline tickets.

How far in advance should I book tickets from Boston to San Francisco?

The chart below shows up-to-date information regarding how far in advance to book your flight from Boston to San Francisco.

Non Stop versus Connecting
Advanced PurchaseNon StopConnecting
< 7 days $431 $264
7-14 days $333 $264
14-21 days $281 $231
21-30 days $197 $206
30-60 days $191 $206
60-90 days $249 $214
90+ days $277 $264

Cheapest Day To Fly from Boston to San Francisco

We've examined 57,595,778,181 itinerary searches that we've seen for departures in the next 90 days and found that the cheapest day to fly from Boston to San Francisco is Wednesday. See the chart below to compare prices for other days of the week.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$252$197$191$231$246$197$246

Compare Flight Prices from Boston to San Francisco by Month

Low priced flights are most commonly available by purchasing between one and three months in advance. International or holiday flights may need to be purchased even further in advance. The chart below shows the cheapest flight prices by month for Boston to San Francisco flights.

Month Origin Destination Carrier Depart Date Return Date Stops Price
March Boston San Francisco American 3/27/19 4/2/19 1 $264
April Boston San Francisco United 4/24/19 4/24/19 0 $191
May Boston San Francisco Alaska 5/1/19 5/4/19 0 $197
June Boston San Francisco Sun Country 6/7/19 6/14/19 1 $246
July Boston San Francisco United 7/18/19 7/23/19 1 $286
August Boston San Francisco American 8/21/19 9/6/19 1 $264
September Boston San Francisco American 9/4/19 9/9/19 1 $264
October Boston San Francisco American 10/23/19 10/28/19 1 $264

Cheap Last Minute Flights from Boston to San Francisco

Looking for cheap last minute flights or a weekend getaway? We've got you covered with weekend flight deals from Boston to San Francisco. The chart below shows the best last minute deals and cheap flights this weekend we could find.

Next 30 Days

SunMonTueWedThuFriSat
24 25 26 27 28 29 30
$264
31 1 2 3 4 5 6
$264 $264
7 8 9 10 11 12 13
$264 $298
14 15 16 17 18 19 20
$298 $249
21 22 23 24 25 26 27
$249 $197
28 29 30 1 2 3 4
$197

Connecting Flights vs Direct Flights from Boston to San Francisco

Flights between some cities may be significantly cheaper if you choose a multi-stop airline ticket. Although these connecting flights sacrifice some convenience, on average, travelers save 20%-60% when they choose to fly multi-stop versus a direct flight.

The average price for connecting flights from Boston to San Francisco is $280.

The average price for direct flights from Boston to San Francisco is $292.

The chart below shows up to date information regarding non-stop flights from Boston to San Francisco.

Weekly Direct Flights from Boston to San Francisco - By Carrier
CarrierMonTueWedThuFriSatSunEarliest FlightLatest Flight
Alaska 2 2 2 2 2 2 1 03:00 12:25
JetBlue 5 5 5 5 5 4 5 01:57 16:47
Major Airlines 2 1 2 2 2 1 1 02:05 12:15
United 7 6 7 7 7 6 7 01:10 15:22

One Way Flights vs Round Trip Flights from Boston to San Francisco

We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from Boston to San Francisco. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison.

The average price for one way flights from Boston to San Francisco is $128.

The average price for round trip flights from Boston to San Francisco is $263.

Boston to San Francisco Flight Questions

Below are some common questions that asked about this flight route:

Question: How long is the flight from Boston to San Francisco?
Answer: The average Boston to San Francisco flight time is 6 hours and 45 minutes.
Question: How far is San Francisco from Boston?
Answer: The distance from Boston to San Francisco is 2,697 miles (4,340 kilometers).
Question: How common are direct flights from Boston to San Francisco?
Answer: There are 104 direct flights from Boston to San Francisco.
Question: What are the most popular Boston airlines for direct flights from Boston to San Francisco?
Answer: United Airlines provides 44% of the non-stop flights between Boston and San Francisco.
Question: What are the most popular connecting cities when flying from Boston to San Francisco?
Answer: Los Angeles, CA

Airlines in Boston flying to San Francisco Last modified: Mar 24, 2019 4:21 -04:00Number of routes searched: 466Number of itineraries searched: 2,950,046

Wondering which airlines fly out of Boston to San Francisco? We've gathered the average price of Boston airlines with flights to San Francisco. Different airlines offer different levels of comfort and service, so consider convenience when choosing your airline.

Below is the full flight schedule summary showing which days of the week individual carriers offer flights for the next 30 days.

Boston to San Francisco
Airline Connections Mon Tue Wed Thu Fri Sat Sun
Alaska -
JetBlue -
Major Airlines -
United -
American DFW
American PHX
American CLT
American JFK
American LAX
Air France CDG
Alaska PDX
Alaska SEA
Alaska LAX
Alaska SAN
JetBlue JFK
JetBlue FLL
JetBlue LGB
British Airways LHR
Copa PTY
Cathay HKG
Major Airlines ATL
Major Airlines SLC
Major Airlines CVG
Major Airlines DTW
Frontier DEN
Hawaiian HNL
Korean ICN
KLM AMS
Lufthansa FRA
Lufthansa MUC
Swiss ZRH
Spirit LAS
Spirit ORD
Sun Country MSP
Tap Portugal LIS
United AUS
United DEN
United EWR
United IAD

Boston to San Francisco Airports

These are the major commercial airports we're currently monitoring in Boston and San Francisco. If your route includes a city with multiple airports, you may be able to find substantial savings by choosing an alternate airport.

Farecompare Research Tools

FareCompare's Flight Schedule Search Tool helps you find information about airline schedule filings, including flight numbers, depart times, and travel distance.

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Cheap Flights from Boston to San Francisco