The flight time from Boston to San Francisco is 6 hours, 22 minutes. See Data as Tables

Average Timeline

Leaves BOS Boston, MA 3 minutes early.
16 minutes taxiing out
5 hours, 56 minutes in the air
6 minutes taxiing in
Arrives SFO San Francisco, CA 18 minutes early.

Flight Reliability By Airline ?

United
89%
Alaska
89%
JetBlue
88%
Delta
80%
Cancelled
Delayed*
Normal

Flight Summary

The flight time from Boston to San Francisco is 6 hours, 22 minutes. The time spent in the air is 5 hours, 56 minutes.

The flight distance from Boston to San Francisco is 2704 Miles.

Reverse Journey

San Francisco to Boston
5 hours, 26 minutes

Flight Time By Airline ?

United
6h 18m
JetBlue
6h 22m
Alaska
6h 27m
Delta
6h 37m
Taxiing Out
Air Time
Taxiing In

Flight Time by Time of Day ?

12AM06AM12PM06PM1h2h3h4h5h6h
Taxiing Out
Air Time
Taxiing In

Flights By Time of Day ?
(Average)

12AM06AM12PM06PM0.00.51.01.52.0

Flights Per Week

45

Distance

2704 Miles

Flights By Month ?

JFMAMJJASOND0100200

Flights By Day of Week ?
(Average)

MonTueWedThuFriSatSun02468

Flights By Airline ?
(Per Week)

JetBlue
23
United
13
Alaska
4
Delta
2

Frequently Asked Questions

How far is Boston from San Francisco by plane?

The distance from Boston to San Francisco by plane is 2704 Miles. This is the air distance on the most direct route taken by the vast majority of flights.

How long is the flight from Boston to San Francisco?

The flight time from Boston to San Francisco is 6 hours, 22 minutes. The time spent in the air is 5 hours, 56 minutes. These numbers are averages. In reality, it varies by airline with United being the fastest taking 6 hours, 18 minutes, and Delta the slowest taking 6 hours, 37 minutes.

What airlines fly from Boston to San Francisco?

United, Alaska, Delta, and JetBlue are the airlines with direct flights from Boston to San Francisco.

Does Southwest fly from Boston to San Francisco?

Southwest does not fly from Boston (BOS) to San Francisco (SFO). Keep in mind that Southwest may fly to other nearby airports, as they will often fly into smaller airpors instead of larger ones. This is because the costs are often lower to fly into smaller airports, and they pass the savings on to you.

Tables and Explanations

Data Source

Our information is computed from the latest available data from the US Department of Transportation.

Average Timeline Timeline Chart

The average timeline contains the median time a flight spends in 3 stages. The first of these three stages is taxiing out which includes the time from the flight leaving the gate to taking off. The second stage is in the air, which includes the time spent from the flight leaving the ground to touching back down at the end of it's journey. The last stage is taxiing in, which is from when the flight touches down to the flight arriving at it's gate.

The average timeline also estimates on average of when the flight will leave and arrive relative to it's stated departure time.

Leaves Boston 3 minutes early
Taxi Out Time 16 minutes
In the Air 356 minutes
Taxiing In 6 minutes
Arrives San Francisco 18 minutes early

Flight Reliability Reliability Chart

The reliability of an airline measures how often the airline's flights on this route are cancelled or delayed more than 20 minutes. For example, from Boston to San Francisco, Alaska is 89% reliable, which means that Alaska flights are on time 89% of the time, and cancelled or delayed the remaining time.

Airline Normal Flights Arrival Delayed* Flight Cancelled
Alaska 89% 7% 4%
United 89% 9% 2%
JetBlue 88% 11% 1%
Delta 80% 16% 4%

Flight Time By Airline Flight Time By Airline Chart

Each airline takes a different amount of time to fly between Boston and San Francisco, this is due to different operational factors on the ground, as well as scheduling of planes. Each airline's flight time is split into three stages which are described above in the "Average Timeline" section. There are also miscellaneous operational issues which are included in the below total but are not accounted for in one of the three stages.

Airline Taxiing Out
(minutes)
In the Air
(minutes)
Taxiing In
(minutes)
Total
(minutes)
United 15 356 5 378
JetBlue 16 355 7 382
Alaska 20 360 4 387
Delta 19 370 6 397

Flights By Time of Day Flight Time By Day Chart

This one is pretty self explanatory, it represents the number of flights that leave the gate in a given hour of the day. The tricky thing here is that this is normally not a whole number since it is an average over 52 weeks. Partial numbers may indicate that a flight may be seasonal or may take off at different times due to different operational factors.

Time Count
2pm 0.01
6am 0.53
1pm 0.56
9am 0.49
8am 1.33
10am 0.02
7pm 0.14
6pm 1.07
11am 0.24
8pm 0.17
12pm 0.56
4pm 0.27
5pm 0.47
9pm 0.21
7am 0.23

Flights By Month Flights By Month Chart

The quantity of flights from Boston to San Francisco that take off in a given month of the year. This number changes because some flights are seasonal, and almost all flights have uneven demand througout the year.

Month Count
January 242
February 43
March 72
April 91
May 120
June 186
July 269
August 282
September 266
October 275
November 251
December 244

Flights By Day Of Week Flights By Day of Week Chart

The quantity of flights from Boston to San Francisco that take off on a given day of the week. Some routes only have enough demand to sustain a few trips a week, while others have many flights a day. This number is also an average across the year, and hence may not be a whole number.

Day Count
Monday 7.25
Tuesday 5.71
Wednesday 5.98
Thursday 7.23
Friday 7.06
Saturday 4.73
Sunday 7.06

Flight per Airline (per Week) Flights By Airline Chart

How many times an airline flies this route in a week. Different factors play into how often a carrier chooses to fly a given route including it's need to connect disparate routes, and demand.

Airline Flights per Week
JetBlue 0
United 0
Alaska 0
Delta 0

Flight Time By Time of Day Flight Time by Time of Day Chart

The total flight time varies by each hour of the day due to factors such as airport traffic. More flights leaving an airport may cause higher taxi in or taxi out times. See the description of the average timeline above for a deeper discussion of each of these times.

Time Taxi Out
(minutes)
In the Air
(minutes)
Taxi In
(minutes)
Total
(minutes)
2pm 12 352 3 368
6am 15 352 6 376
1pm 13 354 5 374
9am 16 348 8 378
8am 16 361 5 384
10am 16 368 9 390
7pm 18 358 4 379
6pm 17 360 5 385
11am 13 370 6 391
8pm 14 350 9 385
12pm 15 354 8 378
4pm 19 363 5 388
5pm 16 355 7 387
9pm 14 356 6 376
7am 16 356 5 379
* Delayed more than 20 minutes.
All data above is a median or mean as appropriate.