Historical on-time performance
Denver to Baltimore
1,491 miData through Dec 2025Source: US DOT · BTS
Flights on DEN–BWI arrive on time 74% of the time over the last 12 months.
On-time rate74%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled0.9%of scheduled flights
based on 2,949 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesbestOn-time77%Medianon timep9035 minCancel0.5%Flights981
- Southwest AirlinesOn-time73%Medianon timep9040 minCancel1.2%Flights1,968
Why flights run late
Delay causes
- Airline31%
- Weather2%
- Air traffic (NAS)22%
- Late aircraft46%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly DEN → BWI
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 87% on time.
- Mornings87% on time · p90 15 min · 3,295 flights
- Overnights78% on time · p90 35 min · 780 flights
- Middays76% on time · p90 30 min · 1,405 flights
- Early mornings70% on time · p90 55 min · 127 flights · limited
- Afternoons61% on time · p90 50 min · 1,204 flights
- Evenings59% on time · p90 70 min · 2,309 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 72% to 76% on time.
- Wednesdays76% on time · p90 35 min · 1,311 flights
- Tuesdays75% on time · p90 40 min · 1,273 flights
- Saturdays74% on time · p90 40 min · 1,133 flights
- Fridays74% on time · p90 40 min · 1,390 flights
- Mondays73% on time · p90 40 min · 1,392 flights
- Thursdays73% on time · p90 45 min · 1,335 flights
- Sundays72% on time · p90 45 min · 1,286 flights
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