My trip
Plan a trip
Tell FlyerIntel where and when you are flying. It will show how that route actually performs at that time of day and on that day of the week, what both airports are doing right now, and when to get to the airport.
BOS → SFO
Boston to San Francisco
Your slot
Add a date and a scheduled departure time above to see how your weekday and hour have done on this route.
Other times on BOS → SFO
Time of day
- 5–9 AM83.7%
- 9 AM–12 PM79.3%
- 12–3 PM80.7%
- 3–6 PM67.3%
- 6–9 PM62.9%
- 9 PM–5 AM58.0%
Day of week
- Monday73.4%
- Tuesday79.8%
- Wednesday78.3%
- Thursday71.5%
- Friday72.3%
- Saturday75.8%
- Sunday71.6%
Bars start below the lowest figure so a real gap is visible; read the percentage, not the bar length. A time with too few flights to score is left unscored rather than guessed at.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · History describes what has happened on this route. It is not a prediction about your flight. Full route profile →
Which flight
Every flight number on BOS → SFO with enough history to judge, most reliable first.
On this route, UA2441 (usually 6:00 AM) has the best record: 86.7% on time and 0.68% cancelled over 584 flights, against 74.6% on time for BOS → SFO as a whole.
| Flight | Usually departs | On time | Cancelled |
|---|---|---|---|
| UA2441United AirlinesLive map | 6:00 AM | 86.7% | 0.68% |
| B61333JetBlueLive map | 6:05 AM | 84.3% | 0.17% |
| DL977Delta Air LinesLive map | 7:55 AM | 80.8% | 0.67% |
| UA1074United AirlinesLive map | 2:00 PM | 80.4% | 0.30% |
| B61833JetBlueLive map | 9:50 AM | 79.3% | 0.42% |
| B6233JetBlueLive map | 3:50 PM | 77.0% | 1.19% |
| B62233JetBlueLive map | 11:00 AM | 69.4% | 1.36% |
| DL1655Delta Air LinesLive map | 5:00 PM | 68.3% | 1.35% |
| B6733JetBlueLive map chosen, below | 6:30 PM | 68.2% | 0.76% |
| UA2400United AirlinesLive map | 6:18 PM | 62.0% | 2.03% |
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Showing 10 of 11 flight numbers. “Usually departs” is the scheduled time each flight number most often had over the period; airlines retime flights, so confirm the time on your booking. Flight numbers with fewer than 90 operations on this route are left out. This is history, not a forecast for your flight.
Where B6733 is right now
A live reading for one flight, only if you ask for it. It is not part of the planning figures above.
Ask for the position of B6733 right now, if receivers on the ground are hearing it. Nothing is requested until you press the button.
When to get to the airport
A starting point for BOS, not a promise about your day.
Add your departure time above for clock times.
How this was worked out
- FlyerIntel cannot currently obtain live security wait times for BOS, so this figure does not account for the queue on the day.
- It does not include your journey to the airport, parking, or a shuttle from a remote lot.
- International departures, and travel with children, checked pets or special assistance, need more time.
Both airports right now
Aviation weather is not currently a factor.
Minimal operational impact. Conditions are not a notable factor for operations right now.
UpdatedAviation weather is not currently a factor.
Minimal operational impact. Conditions are not a notable factor for operations right now.
UpdatedSource: NOAA Aviation Weather Center · Conditions describe the airfield, not your flight, and change quickly.
Who flies this route
Performance by the carrier that actually operates the flight.
| Carrier | Flights | On time | Cancelled | Median delay |
|---|---|---|---|---|
| United Airlines | 5,526 | 78.7% | 1.19% | -8 min |
| JetBlue | 5,059 | 71.8% | 0.89% | -5 min |
| Delta Air Lines | 2,529 | 73.6% | 0.91% | -6 min |
| Alaska Airlines | 1,117 | 69.2% | 1.16% | -3 min |