Best Time to Fly SAN to SEA
San Diego to Seattle — month-by-month delay data from the Bureau of Transportation Statistics.
Best month
January
1% on time
Worst month
January
1% on time
SAN → SEA on-time performance by month
24
25
26
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
Monthly breakdown
| Month | On-time | Cancel rate | Flights |
|---|---|---|---|
| January | 1% | 0% | 1,400 |
| February | 1% | 0% | 1,278 |
| March | 1% | 0% | 1,508 |
| April | 1% | 0% | 1,529 |
| May | 1% | 0% | 1,635 |
| June | 1% | 0% | 1,677 |
| July | 1% | 0% | 1,762 |
| August | 1% | 0% | 1,293 |
| September | 1% | 0% | 1,213 |
| October | 1% | 0% | 1,128 |
| November | 1% | 0% | 1,044 |
| December | 1% | 0% | 1,128 |
Frequently asked
What is the best month to fly from SAN to SEA?
January has the highest on-time rate at 1% for flights from San Diego to Seattle.
What is the worst month to fly SAN to SEA?
January has the lowest on-time rate at 1%, often due to winter weather.
How often are SAN to SEA flights delayed?
On average, 1% of flights from SAN to SEA arrive on time. That means about 99% experience some form of delay.
Source: Bureau of Transportation Statistics.