Historical on-time performance
Washington to Dallas
1,184 miData through Dec 2025Source: US DOT · BTS
Flights on DCA–DAL arrive on time 71% of the time over the last 12 months.
On-time rate71%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled2.4%of scheduled flights
based on 1,735 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time71%Medianon timep9050 minCancel2.4%Flights1,735
Why flights run late
Delay causes
- Airline29%
- Weather5%
- Air traffic (NAS)16%
- Late aircraft50%
- 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 DCA → DAL
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 — 89% on time.
- Mornings89% on time · p90 10 min · 1,513 flights
- Middays79% on time · p90 30 min · 1,117 flights
- Afternoons72% on time · p90 40 min · 653 flights
- Overnights68% on time · p90 75 min · 820 flights
- Evenings61% on time · p90 70 min · 1,027 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 69% to 80% on time.
- Saturdays80% on time · p90 30 min · 497 flights
- Tuesdays78% on time · p90 35 min · 785 flights
- Wednesdays77% on time · p90 35 min · 785 flights
- Mondays76% on time · p90 40 min · 785 flights
- Thursdays75% on time · p90 45 min · 771 flights
- Fridays72% on time · p90 50 min · 778 flights
- Sundays69% on time · p90 50 min · 729 flights
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