Cheap flights from San Francisco to Boston from $118
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How much do flights to Boston cost?
Cheapest one-way trip | $118 |
|---|---|
Cheapest nonstop round-trip | $242 |
Cheapest round-trip | $239 |
Average round-trip | $281 |
Nonstop flights in May | $120 – $424 |
Key info about flying to Boston
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 04.05 | Mon 05.05 | Tue 06.05 | Wed 07.05 | Thu 08.05 | Fri 09.05 | Sat 10.05 |
|---|---|---|---|---|---|---|---|
| 4 | 5 | 5 | 5 | --- | 5 | 4 | |
| 3 | 2 | 5 | 5 | 2 | 5 | 4 | |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
| --- | --- | --- | --- | --- | --- | --- | |
| Weekly flights: 61 total | Daily flights: 8.71 average | Most flights: Monday 5 flights |
| Airline | Sun 11.05 | Mon 12.05 | Tue 13.05 | Wed 14.05 | Thu 15.05 | Fri 16.05 | Sat 17.05 |
|---|---|---|---|---|---|---|---|
| 5 | 5 | 5 | 5 | --- | 2 | 3 | |
| 5 | 3 | 5 | 3 | --- | --- | 4 | |
| 1 | 1 | 1 | 2 | --- | 2 | 1 | |
| --- | --- | --- | --- | --- | --- | --- | |
| Weekly flights: 53 total | Daily flights: 7.57 average | Most flights: Sunday 5 flights |
| Airline | Sun 18.05 | Mon 19.05 | Tue 20.05 | Wed 21.05 | Thu 22.05 | Fri 23.05 | Sat 24.05 |
|---|---|---|---|---|---|---|---|
| 5 | 4 | 5 | 5 | --- | 3 | 4 | |
| 3 | 4 | 4 | 4 | --- | 3 | 5 | |
| 2 | 2 | 2 | 2 | 2 | 2 | 2 | |
| --- | --- | --- | --- | --- | --- | 1 | |
| Weekly flights: 64 total | Daily flights: 9.14 average | Most flights: Sunday 5 flights |
| Airline | Sun 25.05 | Mon 26.05 | Tue 27.05 | Wed 28.05 | Thu 29.05 | Fri 30.05 | Sat 31.05 |
|---|---|---|---|---|---|---|---|
| 4 | 3 | 5 | 5 | 5 | 5 | 4 | |
| 5 | 5 | 4 | 4 | 2 | 4 | 5 | |
| 2 | 2 | 2 | 2 | 2 | 2 | 2 | |
| 1 | --- | --- | --- | 1 | --- | --- | |
| Weekly flights: 76 total | Daily flights: 10.86 average | Most flights: Tuesday 5 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 |
| American Airlines | AAL | AA | No |
| JetBlue Airways | JBU | B6 | No |
| Alaska Airlines | ASA | AS | No |
| Frontier Airlines | FFT | F9 | 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 | 19°C | 10°C |
| June | 23°C | 14°C |
| July | 27°C | 18°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
Frequently asked questions
Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.
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