Historical on-time performance
Washington to San Antonio
1,380 miData through May 2026Source: US DOT · BTS
Flights on DCA–SAT arrive on time 52% of the time over the last 12 months.
On-time rate52%arrived within 15 min
p90 delay120 min1 in 10 flights is worse (tail risk)
Cancelled1.5%of scheduled flights
based on 275 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- American AirlinesOn-time52%Median10 minp90120 minCancel1.5%Flights275
Why flights run late
Delay causes
- Airline23%
- Weather3%
- Air traffic (NAS)14%
- Late aircraft59%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather100%
- Air traffic (NAS)0%
- 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
Keep exploring