Route Reliability
Portland → Miami
PDX–MIA · 2,700 miles · Portland International Airport to Miami International Airport
- 85%
- Arrive within 15 minutes
- 1 min early
- Average arrival delay
- 0.9%
- Cancelled
- 344
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.Alaska Airlines85%142 flights
- 2.American Airlines85%202 flights
What the data says
Departure time hasn't mattered much.
On-time rates stay between 85% and 85% across the day.
Friday is doing you no favors.
PDX–MIA flights arrived on time 94% of the time on Thursdays and just 78% on Fridays. That gap is worth planning around.
Not much between Alaska Airlines and American Airlines.
On this route they all land within 85% to 85% on time. Pick on schedule and price.
Recent months have been rougher.
PDX–MIA flights arrived on time 80% of the time over the last three months in the data, compared with 87% in the three months before that.
Flights on this route
The breakdown
- Mon88%(51 flights)
- Tue88%(50 flights)
- Wed81%(42 flights)
- Thu94%(47 flights)
- Fri78%(49 flights)
- Sat84%(50 flights)
- Sun80%(51 flights)
- 6–9 AM85%(139 flights)
- 9 AM–12 PM—(1 flights)
- 9 PM–12 AM85%(200 flights)
Nov 87% → May 70% on time
| Month | On-time percentage | Flights |
|---|---|---|
| November 2025 | 87% | 37 |
| December 2025 | 86% | 64 |
| January 2026 | 86% | 56 |
| February 2026 | 89% | 52 |
| March 2026 | 85% | 59 |
| April 2026 | 84% | 50 |
| May 2026 | 70% | 20 |
Same trip, other airports
Keep nerding
Based on 344 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.