Best Time to Fly ORD to BIL
Chicago to Billings — month-by-month delay data from the Bureau of Transportation Statistics.
Best month
May
1% on time
Worst month
May
1% on time
ORD → BIL on-time performance by month
23
24
25
26
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
Monthly breakdown
| Month | On-time | Cancel rate | Flights |
|---|---|---|---|
| May | 1% | 0% | 21 |
| June | 1% | 0% | 168 |
| July | 1% | 0% | 186 |
| August | 1% | 0% | 138 |
| September | 1% | 0% | 120 |
| October | 1% | 0% | 60 |
Frequently asked
What is the best month to fly from ORD to BIL?
May has the highest on-time rate at 1% for flights from Chicago to Billings.
What is the worst month to fly ORD to BIL?
May has the lowest on-time rate at 1%, often due to seasonal weather patterns.
How often are ORD to BIL flights delayed?
On average, 1% of flights from ORD to BIL arrive on time. That means about 99% experience some form of delay.
Source: Bureau of Transportation Statistics.