The flight time from San Francisco to Boston is 5 hours, 31 minutes. See Data as Tables

Average Timeline

Leaves SFO San Francisco, CA 2 minutes early.
21 minutes taxiing out
5 hours, 1 minute in the air
7 minutes taxiing in
Arrives BOS Boston, MA 6 minutes early.

Flight Reliability By Airline ?

Delta
83%
Virgin America
81%
United
80%
JetBlue
80%
Alaska
79%
Cancelled
Delayed*
Normal

Reverse Journey

Boston to San Francisco
6 hours, 32 minutes

Flight Time By Airline ?

JetBlue
5h 29m
United
5h 30m
Virgin America
5h 31m
Delta
5h 33m
Alaska
5h 39m
Taxiing Out
Air Time
Taxiing In

Flight Time by Time of Day ?

12AM06AM12PM06PM1h2h3h4h5h
Taxiing Out
Air Time
Taxiing In

Flights By Time of Day ?
(Average)

12AM06AM12PM06PM0123

Flights Per Week

99

Distance

2704 Miles

Flights By Month ?

JFMAMJJASOND0100200300400500

Flights By Day of Week ?
(Average)

MonTueWedThuFriSatSun051015

Flights By Airline ?
(Per Week)

United
42
JetBlue
28
Virgin America
16
Delta
10
Alaska
3

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 San Francisco 2 minutes early
Taxi Out Time 21 minutes
In the Air 301 minutes
Taxiing In 7 minutes
Arrives Boston 6 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 10 minutes. For example, from San Francisco to Boston, JetBlue is 80% reliable, which means that JetBlue flights are on time 80% of the time, and cancelled or delayed the remaining time.

Airline Normal Flights Arrival Delayed* Flight Cancelled
Delta 83% 17% 0%
Virgin America 81% 18% 1%
JetBlue 80% 19% 1%
United 80% 19% 1%
Alaska 79% 20% 1%

Flight Time By Airline Flight Time By Airline Chart

Each airline takes a different amount of time to fly between San Francisco and Boston, 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)
JetBlue 17 302 7 329
United 24 299 6 330
Virgin America 18 302 7 331
Delta 22 301 8 333
Alaska 19 310 7 339

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
0am 0.24
6am 1.19
7am 0.66
8am 1.1
9am 1.16
10am 0.52
11am 2.15
12pm 0.13
1pm 0.94
2pm 0.93
3pm 0.41
4pm 1.08
8pm 1.96
9pm 1
10pm 0.35
11pm 0.23

Flights By Month Flights By Month Chart

The quantity of flights from San Francisco to Boston 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 361
February 347
March 386
April 440
May 489
June 436
July 487
August 504
September 434
October 449
November 404
December 388

Flights By Day Of Week Flights By Day of Week Chart

The quantity of flights from San Francisco to Boston 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 14.4
Tuesday 14.3
Wednesday 14.2
Thursday 14.9
Friday 14.8
Saturday 11.9
Sunday 14.1

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
United 42
JetBlue 28
Virgin America 16
Delta 10
Alaska 3

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)
0am 18 298 5 323
6am 29 304 6 339
7am 15 304 7 329
8am 23 297 7 328
9am 19 306 9 340
10am 25 306 6 339
11am 24 300 8 334
12pm 17 297 8 325
1pm 23 297 5 329
2pm 17 301 7 326
3pm 19 301 5 327
4pm 20 298 5 324
8pm 18 301 6 328
9pm 17 298 7 322
10pm 29 297 6 332
11pm 29 302 6 339
* Delayed more than 10 minutes.
All data above is a median or mean as appropriate.