Best Time to Fly PWM to MDW
Portland to Chicago — month-by-month delay data from the Bureau of Transportation Statistics.
Best month
June
1% on time
Worst month
June
1% on time
PWM → MDW on-time performance by month
23
24
25
26
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
Monthly breakdown
| Month | On-time | Cancel rate | Flights |
|---|---|---|---|
| June | 1% | 0% | 107 |
| July | 1% | 0% | 124 |
| August | 1% | 0% | 93 |
| September | 1% | 0% | 90 |
| October | 1% | 0% | 93 |
Frequently asked
What is the best month to fly from PWM to MDW?
June has the highest on-time rate at 1% for flights from Portland to Chicago.
What is the worst month to fly PWM to MDW?
June has the lowest on-time rate at 1%, often due to summer thunderstorms.
How often are PWM to MDW flights delayed?
On average, 1% of flights from PWM to MDW arrive on time. That means about 99% experience some form of delay.
Source: Bureau of Transportation Statistics.