BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
MIA→PDX

Miami, FL (MIA) to Portland, OR (PDX) flight delay odds

72.1% of 341 official scheduled MIA-to-PDX flights arrived on time; 18.2% arrived at least 30 minutes late and 1.5% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALGenerally reliable
72.1%arrived on time
18.2%30+ min late
1.5%cancelled
341scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late9.7%all scheduled flights
120+ minutes late4.7%all scheduled flights
Diverted0.9%did not reach as scheduled
Average arrival+12.0 mincompleted flights

Which departure time was most reliable for MIA to PDX?

Among qualifying MIA-to-PDX departure window results, Afternoon had the highest on-time rate: 80.0% of 125 flights. Evening was lowest at 66.7% across 195 flights.

Departure windowFlightsOn time30+ minCancelled
Afternoon12580.0%10.4%1.6%
Evening19566.7%23.6%1.5%

Which weekday was most reliable for MIA to PDX?

Among qualifying MIA-to-PDX weekday results, Thursday had the highest on-time rate: 81.2% of 48 flights. Sunday was lowest at 62.7% across 51 flights.

DayFlightsOn time30+ minCancelled
Monday5168.6%15.7%2.0%
Tuesday5180.4%7.8%2.0%
Wednesday4072.5%17.5%0.0%
Thursday4881.2%10.4%4.2%
Friday5072.0%20.0%0.0%
Saturday5068.0%24.0%0.0%
Sunday5162.7%31.4%2.0%

Which airline was most reliable for MIA to PDX?

Among qualifying MIA-to-PDX airline results, Alaska Airlines had the highest on-time rate: 78.7% of 141 flights. American Airlines was lowest at 67.5% across 200 flights.

AirlineFlightsOn time30+ minCancelled
American Airlines20067.5%23.5%1.5%
Alaska Airlines14178.7%10.6%1.4%

Which month was most reliable for MIA to PDX?

Among qualifying MIA-to-PDX month results, April 2026 had the highest on-time rate: 88.2% of 51 flights. March 2026 was lowest at 65.0% across 60 flights.

MonthFlightsOn time30+ minCancelled
November 20253767.6%21.6%0.0%
December 20256271.0%14.5%0.0%
January 20265971.2%13.6%5.1%
February 20265269.2%23.1%0.0%
March 20266065.0%25.0%3.3%
April 20265188.2%11.8%0.0%
May 20262075.0%20.0%0.0%

What drove MIA to PDX delay minutes?

Late aircraft was the largest recorded MIA-to-PDX delay category, accounting for 49.1% of 7,110 BTS-attributed delay minutes during July 2025–June 2026.

Airline34.0%
Late aircraft49.1%
National airspace13.8%
Weather3.2%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.