Historical on-time performance
Washington to Denver
Flights on DCA–DEN arrive on time 78% of the time over the last 12 months.
based on 1,320 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.
- Frontier AirlinesOn-time78%Medianon timep9050 minCancel0.9%Flights983
- United AirlinesOn-time77%Medianon timep9050 minCancel0.3%Flights337
Why flights run late
Delay causes
- Airline25%
- Weather10%
- Air traffic (NAS)29%
- Late aircraft35%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline50%
- Weather50%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 10 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 DCA → 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 66% to 86% on time.
- Middays86% on time · p90 20 min · 909 flights
- Mornings86% on time · p90 20 min · 1,093 flights
- Afternoons76% on time · p90 70 min · 1,228 flights
- Evenings66% on time · p90 90 min · 1,036 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 74% to 82% on time.
- Saturdays82% on time · p90 35 min · 625 flights
- Sundays81% on time · p90 40 min · 625 flights
- Tuesdays80% on time · p90 40 min · 572 flights
- Wednesdays78% on time · p90 55 min · 572 flights
- Mondays76% on time · p90 60 min · 621 flights
- Thursdays75% on time · p90 50 min · 623 flights
- Fridays74% on time · p90 65 min · 628 flights
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