Cheap flights from San Francisco to Boston from $140
Trusted by millions
Kiwi.com Guarantee for stress-free travel
One search, all the best deals
Explore flight deals to Boston
Prices updated:
Not happy with the results? Try some of our useful filters
Search by stops
Search by carrier
Search by departure date
Prices updated:
Not happy with the results? Try some of our useful filters
Search by stops
Search by carrier
Search by price
Search by departure date
How much do flights to Boston cost?
Key info about flying to Boston
Depart from
Arrive to
Average flights per week
Flight distance
Worth visiting
Weekly direct flights
Discover the top airlines offering direct flights from San Francisco to Boston in the next month. You’ll find the number of daily direct flights per airline in the chart.
| Airline | Sun 14.09 | Mon 15.09 | Tue 16.09 | Wed 17.09 | Thu 18.09 | Fri 19.09 | Sat 20.09 |
|---|---|---|---|---|---|---|---|
| 4 | 5 | 4 | 3 | 1 | 1 | 2 | |
| 4 | 5 | 5 | 2 | --- | 1 | 4 | |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
| 1 | --- | --- | --- | --- | --- | --- | |
| Weekly flights: 49 total | Daily flights: 7 average | Most flights: Monday 5 flights |
| Airline | Sun 21.09 | Mon 22.09 | Tue 23.09 | Wed 24.09 | Thu 25.09 | Fri 26.09 | Sat 27.09 |
|---|---|---|---|---|---|---|---|
| 4 | 5 | 4 | 4 | 3 | 5 | 3 | |
| 5 | 6 | 5 | 5 | 1 | 2 | 4 | |
| --- | 1 | --- | --- | 1 | 1 | 1 | |
| --- | --- | --- | --- | --- | --- | --- | |
| Weekly flights: 60 total | Daily flights: 8.57 average | Most flights: Monday 6 flights |
| Airline | Sun 28.09 | Mon 29.09 | Tue 30.09 | Wed 01.10 | Thu 02.10 | Fri 03.10 | Sat 04.10 |
|---|---|---|---|---|---|---|---|
| 5 | 5 | 4 | 5 | 5 | 5 | 3 | |
| 6 | 6 | 4 | 1 | 3 | 6 | 5 | |
| 1 | 1 | 1 | --- | 1 | 1 | 1 | |
| --- | --- | --- | --- | --- | 1 | 1 | |
| Weekly flights: 71 total | Daily flights: 10.14 average | Most flights: Sunday 6 flights |
| Airline | Sun 05.10 | Mon 06.10 | Tue 07.10 | Wed 08.10 | Thu 09.10 | Fri 10.10 | Sat 11.10 |
|---|---|---|---|---|---|---|---|
| 5 | 5 | 5 | 5 | 4 | 3 | 3 | |
| 6 | 6 | 4 | 3 | 1 | 3 | 5 | |
| --- | --- | --- | 1 | 1 | 1 | 1 | |
| 1 | 1 | 1 | --- | --- | --- | --- | |
| Weekly flights: 65 total | Daily flights: 9.29 average | Most flights: Sunday 6 flights |
Check-in for a flight from San Francisco to Boston
| Name | Carrier code | IATA Code | Passport needed during booking |
|---|---|---|---|
| United Airlines | UAL | UA | No |
| JetBlue Airways | JBU | B6 | No |
| Frontier Airlines | FFT | F9 | No |
| Spirit Airlines | NKS | NK | No |
| Hawaiian Airlines | HAL | HA | No |
Online check-in is not available for these airlines.
Weather in Boston
Average Weather
| Month | Average monthly max temperature | Average monthly min temperature |
| January | 1°C | -4°C |
| February | 3°C | -3°C |
| March | 7°C | 0°C |
| April | 13°C | 5°C |
| May | 18°C | 10°C |
| June | 23°C | 15°C |
| July | 27°C | 19°C |
| August | 27°C | 18°C |
| September | 23°C | 14°C |
| October | 16°C | 9°C |
| November | 10°C | 3°C |
| December | 5°C | 0°C |
14 day forecast
The distance between San Francisco and Boston is 4347 km. The most popular airlines for this route are United Airlines, JetBlue Airways, Frontier Airlines, Spirit Airlines, and Hawaiian Airlines. San Francisco and Boston have 194 direct flights per week.
Frequently asked questions
Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any origin and destination in the world by plane. Find the cheapest routes and best deals, as well as the best dates to travel.
Explore alternative trips
Flights from San Francisco
Flights to Boston
Airports near San Francisco
Airports near Boston
Download our app