Historical on-time performance
Austin to Washington
1,315 miData through May 2026Source: US DOT · BTS
Flights on AUS–DCA arrive on time 64% of the time over the last 12 months.
On-time rate64%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled1.2%of scheduled flights
based on 337 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time64%Median5 minp9050 minCancel1.2%Flights337
Why flights run late
Delay causes
- Airline26%
- Weather3%
- Air traffic (NAS)45%
- Late aircraft26%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
When flights don't go
Why flights were cancelled
- Airline0%
- Weather75%
- Air traffic (NAS)25%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 4 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 AUS → DCA
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best day of week
On-time rates are fairly even by day on this route — ranging from 60% to 78% on time.
- Saturdays78% on time · p90 25 min · 157 flights · limited
- Thursdays76% on time · p90 40 min · 157 flights · limited
- Mondays75% on time · p90 30 min · 156 flights · limited
- Wednesdays75% on time · p90 40 min · 156 flights · limited
- Tuesdays69% on time · p90 40 min · 156 flights · limited
- Sundays67% on time · p90 40 min · 157 flights · limited
- Fridays60% on time · p90 50 min · 157 flights · limited
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