Historical on-time performance
Memphis to Denver
Flights on MEM–DEN arrive on time 78% of the time over the last 12 months.
based on 1,139 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.
- United AirlinesOn-time79%Medianon timep9045 minCancel1.2%Flights728
- Southwest AirlinesOn-time78%Medianon timep9035 minCancel0.7%Flights411
Why flights run late
Delay causes
- Airline38%
- Weather4%
- Air traffic (NAS)32%
- Late aircraft26%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline42%
- Weather58%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 12 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly MEM → DEN
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 62% to 85% on time.
- Mornings85% on time · p90 25 min · 1,450 flights
- Middays82% on time · p90 25 min · 674 flights
- Overnights73% on time · p90 50 min · 113 flights · limited
- Afternoons73% on time · p90 60 min · 1,327 flights
- Evenings62% on time · p90 90 min · 266 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 76% to 82% on time.
- Wednesdays82% on time · p90 40 min · 520 flights
- Tuesdays81% on time · p90 40 min · 507 flights
- Mondays79% on time · p90 40 min · 561 flights
- Saturdays78% on time · p90 40 min · 499 flights
- Sundays77% on time · p90 40 min · 618 flights
- Thursdays77% on time · p90 50 min · 574 flights
- Fridays76% on time · p90 40 min · 551 flights
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