Best Time to Fly PDX to MDW
Portland to Chicago — month-by-month delay data from the Bureau of Transportation Statistics.
Best month
January
1% on time
Worst month
January
1% on time
PDX → MDW on-time performance by month
24
25
26
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
Monthly breakdown
| Month | On-time | Cancel rate | Flights |
|---|---|---|---|
| January | 1% | 0% | 124 |
| February | 1% | 0% | 113 |
| March | 1% | 0% | 151 |
| April | 1% | 0% | 147 |
| May | 1% | 0% | 154 |
| June | 1% | 0% | 294 |
| July | 1% | 0% | 323 |
| August | 1% | 0% | 231 |
| September | 1% | 0% | 212 |
| October | 1% | 0% | 160 |
| November | 1% | 0% | 95 |
| December | 1% | 0% | 93 |
Frequently asked
What is the best month to fly from PDX to MDW?
January has the highest on-time rate at 1% for flights from Portland to Chicago.
What is the worst month to fly PDX to MDW?
January has the lowest on-time rate at 1%, often due to winter weather.
How often are PDX to MDW flights delayed?
On average, 1% of flights from PDX to MDW arrive on time. That means about 99% experience some form of delay.
Source: Bureau of Transportation Statistics.