Cheap flights from Boston, MA to San Francisco, CA
Flights starting at $72. Choose between United Airlines, JetBlue Airways, or Frontier Airlines to find the best price.
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How much do flights to San Francisco cost?
Key info about flying to San Francisco
Great deals from Boston to San Francisco
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Weekly direct flights
Discover the top airlines offering direct flights from Boston to San Francisco in the next month. You’ll find the number of daily direct flights per airline in the chart.
| Airline | Sun 12.01 | Mon 13.01 | Tue 14.01 | Wed 15.01 | Thu 16.01 | Fri 17.01 | Sat 18.01 |
|---|---|---|---|---|---|---|---|
| --- | --- | --- | 4 | 4 | 4 | 4 | |
| --- | --- | --- | 3 | 5 | 5 | 2 | |
| Weekly flights: 31 total | Daily flights: 4.43 average | Most flights: Thursday 5 flights |
| Airline | Sun 19.01 | Mon 20.01 | Tue 21.01 | Wed 22.01 | Thu 23.01 | Fri 24.01 | Sat 25.01 |
|---|---|---|---|---|---|---|---|
| 4 | 4 | 4 | 4 | 4 | 4 | 4 | |
| 4 | 4 | 3 | 3 | 3 | 3 | 2 | |
| Weekly flights: 50 total | Daily flights: 7.14 average | Most flights: Sunday 4 flights |
| Airline | Sun 26.01 | Mon 27.01 | Tue 28.01 | Wed 29.01 | Thu 30.01 | Fri 31.01 | Sat 01.02 |
|---|---|---|---|---|---|---|---|
| 4 | 4 | 4 | 4 | 4 | 4 | 4 | |
| 3 | 3 | 3 | --- | 3 | 3 | 2 | |
| Weekly flights: 45 total | Daily flights: 6.43 average | Most flights: Sunday 4 flights |
| Airline | Sun 02.02 | Mon 03.02 | Tue 04.02 | Wed 05.02 | Thu 06.02 | Fri 07.02 | Sat 08.02 |
|---|---|---|---|---|---|---|---|
| 4 | 4 | 4 | 4 | 4 | 4 | 4 | |
| 3 | 3 | 3 | 3 | 3 | 3 | 2 | |
| Weekly flights: 48 total | Daily flights: 6.86 average | Most flights: Sunday 4 flights |
Check-in for a flight from Boston to San Francisco
| Name | Carrier code | IATA Code | Passport needed during booking |
|---|---|---|---|
| United Airlines | UAL | UA | Yes |
| JetBlue Airways | JBU | B6 | No |
| Frontier Airlines | FFT | F9 | No |
Online check-in is not available for these airlines.
Weather in San Francisco
Average Weather
| Month | Average monthly max temperature | Average monthly min temperature |
| January | 14°C | 7°C |
| February | 15°C | 8°C |
| March | 15°C | 8°C |
| April | 17°C | 9°C |
| May | 19°C | 10°C |
| June | 21°C | 12°C |
| July | 22°C | 13°C |
| August | 22°C | 14°C |
| September | 23°C | 14°C |
| October | 21°C | 13°C |
| November | 17°C | 10°C |
| December | 13°C | 8°C |
14 day forecast
Frequently asked questions
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