Best Time to Fly SJC to BOS
San Jose to Boston — month-by-month delay data from the Bureau of Transportation Statistics.
Best month
May
1% on time
Worst month
June
0% on time
SJC → BOS on-time performance by month
23
24
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
Monthly breakdown
| Month | On-time | Cancel rate | Flights |
|---|---|---|---|
| May | 1% | 0% | 58 |
| June | 0% | 0% | 60 |
| July | 1% | 0% | 62 |
| August | 1% | 0% | 62 |
| September | 1% | 0.1% | 30 |
| October | 1% | 0% | 28 |
Frequently asked
What is the best month to fly from SJC to BOS?
May has the highest on-time rate at 1% for flights from San Jose to Boston.
What is the worst month to fly SJC to BOS?
June has the lowest on-time rate at 0%, often due to summer thunderstorms.
How often are SJC to BOS flights delayed?
On average, 1% of flights from SJC to BOS arrive on time. That means about 99% experience some form of delay.
Source: Bureau of Transportation Statistics.