Best Time to Fly PDX to MSO
Portland to Missoula — month-by-month delay data from the Bureau of Transportation Statistics.
Best month
March
1% on time
Worst month
March
1% on time
PDX → MSO on-time performance by month
24
26
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
Monthly breakdown
| Month | On-time | Cancel rate | Flights |
|---|---|---|---|
| March | 1% | 0% | 29 |
| April | 1% | 0% | 30 |
| May | 1% | 0% | 12 |
| June | 1% | 0% | 21 |
| July | 1% | 0% | 31 |
Frequently asked
What is the best month to fly from PDX to MSO?
March has the highest on-time rate at 1% for flights from Portland to Missoula.
What is the worst month to fly PDX to MSO?
March has the lowest on-time rate at 1%, often due to seasonal weather patterns.
How often are PDX to MSO flights delayed?
On average, 1% of flights from PDX to MSO arrive on time. That means about 99% experience some form of delay.
Source: Bureau of Transportation Statistics.