Best Time to Fly IAD to LAX
Washington to Los Angeles — month-by-month delay data from the Bureau of Transportation Statistics.
Best month
January
1% on time
Worst month
January
1% on time
IAD → LAX on-time performance by month
24
25
26
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
Monthly breakdown
| Month | On-time | Cancel rate | Flights |
|---|---|---|---|
| January | 1% | 0.1% | 638 |
| February | 1% | 0% | 595 |
| March | 1% | 0% | 809 |
| April | 1% | 0% | 896 |
| May | 1% | 0% | 956 |
| June | 1% | 0% | 913 |
| July | 1% | 0% | 950 |
| August | 1% | 0% | 676 |
| September | 1% | 0% | 587 |
| October | 1% | 0% | 659 |
| November | 1% | 0% | 620 |
| December | 1% | 0% | 633 |
Frequently asked
What is the best month to fly from IAD to LAX?
January has the highest on-time rate at 1% for flights from Washington to Los Angeles.
What is the worst month to fly IAD to LAX?
January has the lowest on-time rate at 1%, often due to winter weather.
How often are IAD to LAX flights delayed?
On average, 1% of flights from IAD to LAX arrive on time. That means about 99% experience some form of delay.
Source: Bureau of Transportation Statistics.