PlainFlights

Route · PDX → MIA · 2020–2025 BTS data

Portland to Miami

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), PDX to MIA (Portland to Miami) ranks #4624 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

79.8%
On-time
+0.8 pts
vs US avg
83 min
Delay when late
843
Flights
#4624 of 4927
Corpus placement

Cancelled

1.7%

Best Month

Feb 2024 97%

Worst Month

Jan 2024 62%

Distance

2,700 mi

Carriers

3

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 64 9 0 0 AS,AA
Nov 2025 37 6 0 0 AA,AS
Apr 2025 51 8 0 0 AA,AS
Mar 2025 62 11 0 0 AA,AS
Feb 2025 56 7 1 0 AA,AS
Jan 2025 62 6 0 0 AA,AS
Dec 2024 58 16 0 0 AA,AS
Nov 2024 33 3 0 0 AS,AA
Jul 2024 31 9 1 0 AA
Jun 2024 30 10 0 0 AA
May 2024 31 14 0 0 AA
Apr 2024 45 14 0 0 AA,AS
Mar 2024 62 21 2 0 AA,AS
Feb 2024 58 2 0 0 AA,AS
Jan 2024 61 23 10 0 AA,AS
Dec 2023 62 8 0 0 AA,AS
Nov 2023 40 3 0 0 AA,AS

PDX–MIA seasonal on-time pattern

Best: February (92.1%) · weakest: May (54.8%)

50%60%70%80%90%100% JanFebMarAprMayJunJulNovDec 82.1%

Strongest calendar month

February

92.1% on-time · ~57 flights/mo

Busiest calendar month

January

~62 flights/mo avg

Weakest calendar month

May

54.8% on-time · ~31 flights/mo

Cancellation Rate

1.7%

14 of 843 flights

Diversion Rate

0.0%

0 of 843 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

PDX - Portland

Full on-time, delay-cause, and seasonal performance for Portland, OR.

PDX on-time profile

MIA - Miami

Full on-time, delay-cause, and seasonal performance for Miami, FL.

MIA on-time profile

Compare the two airports

See PDX and MIA side by side on delays, cancellations, and reliability.

Compare PDX vs MIA

Origin-hub reliability standing

Mid-pack among PDX departures

From PDX, this corridor sits with 17 other 75–85% on-time routes out of 44 tracked departures, not the hub's reliability leaders (26 at ≥85%) and not the softest ( 1 below 75%). Destination: Miami · fleet on-time rank #3239 of 4927.

What the Data Says About PDX to MIA

843 tracked flights put the PDX to MIA pairing (Portland to Miami) at a 79.8% on-time rate, squarely in line with the wider network. Delays that do occur run 83.1 minutes on average. Across the 2,700-mile route and its 3 carriers, the trailing 24 months show 1.7% cancelled and 0.0% diverted (843 flights sampled).

The monthly split is wide on this route: Feb 2024 posted the strongest performance at 97% on-time, while Jan 2024 came in at just 62% - a 34-point swing worth factoring into travel timing.

On the multi-year calendar, PDX–MIA peaks in February at 92.1% on-time while January carries the heaviest traffic (~62 flights per month) ; the softest month is May at 54.8%, a 37.3-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does PDX to MIA rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, PDX to MIA ranks #4624 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from PDX to MIA? ▼
Flights from Portland to Miami have a 79.8% on-time rate based on 843 flights. The average delay is 83.1 minutes. The best recent month was Feb 2024 with 97% on-time.
What is the cancellation rate for PDX to MIA? ▼
Over the last 24 months, 1.7% of flights on this route were cancelled (14 of 843 flights) and 0.0% were diverted.
How far is the flight from PDX to MIA? ▼
The flight distance from Portland (PDX) to Miami (MIA) is approximately 2,700 miles. This route is served by 3 carriers.
When is the best time to fly from PDX to MIA? ▼
The best recent month for on-time performance was Feb 2024 (97% on-time). The worst was Jan 2024 (62% on-time). Consider booking during months with historically better performance.

Airports on this route

PDX Airport

Portland
MIA Airport

Miami
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using PDX–MIA data

PDX–MIA is mid-pack at 79.8% on-time; month and carrier mix move more than the corridor headline.

  • Compare PDX and MIA airport profiles: delay causes and top routes differ even on the same corridor. PDX airport
  • If your dates flex, February (92.1% on-time) beats May (54.8%) on this corridor. Seasonal chart
  • 4 other routes post a similar 79.8% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.