Historical on-time performance
Dallas to Washington
1,184 miData through Dec 2025Source: US DOT · BTS
Flights on DAL–DCA arrive on time 68% of the time over the last 12 months.
On-time rate68%arrived within 15 min
p90 delay65 min1 in 10 flights is worse (tail risk)
Cancelled2.1%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-time68%Medianon timep9065 minCancel2.1%Flights1,735
Why flights run late
Delay causes
- Airline28%
- Weather6%
- Air traffic (NAS)31%
- Late aircraft34%
- Security1%
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 DAL → DCA
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 — 90% on time.
- Mornings90% on time · p90 10 min · 1,363 flights
- Middays79% on time · p90 30 min · 1,016 flights
- Afternoons65% on time · p90 70 min · 1,482 flights
- Overnights63% on time · p90 55 min · 197 flights · limited
- Evenings58% on time · p90 70 min · 1,073 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 67% to 81% on time.
- Saturdays81% on time · p90 30 min · 497 flights
- Tuesdays78% on time · p90 40 min · 785 flights
- Mondays74% on time · p90 40 min · 785 flights
- Wednesdays73% on time · p90 50 min · 785 flights
- Sundays70% on time · p90 50 min · 729 flights
- Fridays69% on time · p90 60 min · 778 flights
- Thursdays67% on time · p90 55 min · 772 flights
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