DEN → MIA: 72% on-time

Historical on-time performance

Denver to Miami

1,709 miData through May 2026Source: US DOT · BTS

Flights on DEN–MIA arrive on time 72% of the time over the last 12 months.

On-time rate72%arrived within 15 min

p90 delay50 min1 in 10 flights is worse (tail risk)

Cancelled0.7%of scheduled flights

based on 2,225 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Too close to call — no single carrier is clearly more on-time here.

Airline	On-time	Median	p90	Cancel	Flights
American Airlines	75%	on time	50 min	1.1%	885
United Airlines	74%	on time	45 min	0.1%	954
Frontier Airlines⚠ low data	64%	on time	55 min	1.8%	165
Southwest Airlines	59%	5 min	75 min	0.9%	221

Why flights run late

Most delay minutes here are attributed to Airline.

When flights don't go

Most cancellations here are attributed to Weather. Shares are among 16 cancellations with a reported cause (BTS reports causes from June 2003).

Over time

By season

When to fly

All airlines · rolling 36 months (2023-06 .. 2026-05).

On-time rates are fairly even by time of day on this route — ranging from 64% to 75% on time.

On-time rates are fairly even by day on this route — ranging from 66% to 75% on time.

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