Cheap flights from Boston, MA to San Francisco, CA
Flights starting at $68. Choose between United Airlines, JetBlue Airways, or Alaska 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
Prices updated:
Prices updated:
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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 15.12 | Mon 16.12 | Tue 17.12 | Wed 18.12 | Thu 19.12 | Fri 20.12 | Sat 21.12 |
|---|---|---|---|---|---|---|---|
| --- | --- | --- | 6 | 1 | --- | --- | |
| --- | --- | --- | 4 | 3 | 1 | 2 | |
| --- | --- | --- | 1 | --- | --- | --- | |
| Weekly flights: 18 total | Daily flights: 2.57 average | Most flights: Wednesday 6 flights |
| Airline | Sun 22.12 | Mon 23.12 | Tue 24.12 | Wed 25.12 | Thu 26.12 | Fri 27.12 | Sat 28.12 |
|---|---|---|---|---|---|---|---|
| 4 | 4 | 4 | 4 | 4 | 3 | 4 | |
| --- | 5 | 5 | 4 | 5 | 5 | 4 | |
| 1 | --- | 1 | 1 | 1 | 1 | 1 | |
| Weekly flights: 61 total | Daily flights: 8.71 average | Most flights: Monday 5 flights |
| Airline | Sun 29.12 | Mon 30.12 | Tue 31.12 | Wed 01.01 | Thu 02.01 | Fri 03.01 | Sat 04.01 |
|---|---|---|---|---|---|---|---|
| 2 | 5 | 1 | 5 | 4 | 4 | 4 | |
| 5 | 5 | 4 | 5 | --- | 5 | 4 | |
| 1 | --- | 1 | --- | 1 | 1 | 1 | |
| Weekly flights: 58 total | Daily flights: 8.29 average | Most flights: Monday 5 flights |
| Airline | Sun 05.01 | Mon 06.01 | Tue 07.01 | Wed 08.01 | Thu 09.01 | Fri 10.01 | Sat 11.01 |
|---|---|---|---|---|---|---|---|
| 4 | 5 | 4 | 4 | 4 | 4 | 4 | |
| --- | 5 | --- | 4 | 4 | 4 | 3 | |
| 1 | --- | --- | --- | --- | --- | --- | |
| Weekly flights: 50 total | Daily flights: 7.14 average | Most flights: Monday 5 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 |
| Alaska Airlines | ASA | AS | No |
| Frontier Airlines | FFT | F9 | No |
| American Airlines | AAL | AA | 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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