Boston (BOS) to San Francisco (SFO) flights
JetBlue, United Airlines, Delta Air Lines fly nonstop from Boston Logan International Airport to San Francisco International Airport, with about 111 flights a week in July 2026. The 2,704-mile flight takes about 6h 35m gate to gate.
- Distance
- 2,704 mi ยท 4,352 km
- Flight time
- 6h 35m
- Airlines
- 3
- Seats filled
- 85%
Airlines flying BOS to SFO
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| JetBlue | 45 | Airbus A321, Airbus A320-100/200 | 230,282 | 6h 36m |
| United Airlines | 42 | Boeing 737 MAX 9, Boeing 757-200, Boeing 757-300 | 286,715 | 6h 32m |
| Delta Air Lines | 23 | Airbus A321 | 144,046 | 6h 39m |
| Alaska AirlinesSeasonal or ended | n/a | Boeing 737 MAX 9, Boeing 737-900ER, Boeing 737-800 | 24,726 | 6h 31m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
BOS to SFO flight schedule
22 flight numbers flew this route in August 2026, 17 of them almost daily. The first usually leaves at 6:00am and the last at 8:55pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| UA 2441United Airlines | 6:00am | 9:30am | 22 | 84% |
| B6 1333JetBlue | 6:35am | 10:05am | 31 | 83% |
| UA 323United Airlines | 7:28am | 10:55am | 10 | 85% |
| DL 977Delta Air Lines | 7:35am | 11:09am | 31 | 80% |
| UA 304United Airlines | 7:45am | 11:15am | 21 | 91% |
| B6 833JetBlue | 8:00am | 11:34am | 31 | 81% |
| UA 2002United Airlines | 9:07am | 12:34pm | 10 | 54% |
| UA 726United Airlines | 9:20am | 12:43pm | 21 | 48% |
| B6 1833JetBlue | 10:00am | 1:33pm | 31 | 76% |
| DL 860Delta Air Lines | 10:05am | 1:39pm | 31 | 48% |
| UA 1074United Airlines | 11:34am | 2:57pm | 29 | 78% |
| UA 1367United Airlines | 2:00pm | 5:23pm | 21 | 78% |
| B6 233JetBlue | 3:50pm | 7:22pm | 31 | 67% |
| UA 512United Airlines | 4:15pm | 7:49pm | 10 | 59% |
| UA 754United Airlines | 4:15pm | 7:40pm | 21 | 57% |
| DL 1655Delta Air Lines | 5:05pm | 8:51pm | 31 | 66% |
| B6 733JetBlue | 5:20pm | 8:56pm | 31 | 56% |
| UA 2400United Airlines | 6:13pm | 9:44pm | 23 | 51% |
| B6 1633JetBlue | 6:50pm | 10:31pm | 26 | 43% |
| UA 2107United Airlines | 8:20pm | 11:57pm | 8 | 54% |
| B6 413JetBlue | 8:55pm | 12:30am | 31 | 45% |
| DL 2919Delta Air Lines | 8:55pm | 12:33am | 12 | 62% |
Is BOS to SFO on time?
From September 2025 to August 2026, 69% of 4,817 flights arrived within 15 minutes of schedule and 1.6% were cancelled. Flights leaving around 8am were the most punctual (86%), those around 6pm the least (48%). Most delay time was caused by air traffic control and airport congestion (42%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| United Airlines | 1,940 | 73% | 19 min | 1.2% |
| JetBlue | 1,808 | 67% | 24 min | 2% |
| Delta Air Lines | 945 | 69% | 21 min | 1.6% |
| Alaska Airlines | 123 | 58% | 33 min | 0.8% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 6am to 7am | 449 | 84% | |
| 7am to 8am | 743 | 83% | |
| 8am to 9am | 251 | 86% | |
| 9am to 10am | 237 | 65% | |
| 10am to 11am | 321 | 73% | |
| 11am to 12pm | 326 | 71% | |
| 1pm to 2pm | 185 | 85% | |
| 3pm to 4pm | 197 | 63% | |
| 4pm to 5pm | 390 | 55% | |
| 5pm to 6pm | 444 | 63% | |
| 6pm to 7pm | 339 | 48% | |
| 7pm to 8pm | 143 | 44% | |
| 8pm to 9pm | 577 | 59% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 431 | 66,411 | |
| September 2025 | 408 | 59,341 | |
| October 2025 | 424 | 64,875 | |
| November 2025 | 351 | 50,268 | |
| December 2025 | 349 | 52,758 | |
| January 2026 | 298 | 40,298 | |
| February 2026 | 262 | 38,926 | |
| March 2026 | 323 | 46,945 | |
| April 2026 | 379 | 55,074 | |
| May 2026 | 439 | 65,002 | |
| June 2026 | 497 | 68,752 | |
| July 2026 | 491 | 77,228 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.