Southwest Airlines BOS to AUS on-time performance
Southwest Airlines nonstop flights from Boston to Austin · Aug 2025 – Jul 2026
On-time arrivals
63%
arrived < 15 min late
Cancelled
1.4%
4 flights
Avg arrival delay
22 min
55 min when late
Rank on route
#3 of 3
route average 72% on time
Key facts
- Southwest Airlines flights on BOS to AUS arrived on time 63% of the time in Aug 2025 – Jul 2026.
- 1.4% were cancelled, and 13% arrived an hour or more late.
- That ranks #3 of 3 airlines on this route, which averaged 72% on time overall.
- The largest source of delay minutes was late-arriving aircraft (54%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft54%
- Airline (crew, maintenance, cleaning, fueling)29%
- Air traffic control & airport congestion16%
- Extreme weather1%
- Security0%
Other airlines on BOS to AUS
- Delta Air Lines74% on time · 25 min avg delay
- JetBlue74% on time · 17 min avg delay
Full BOS to AUS comparison →
Southwest Airlines on-time record across all routes →
282 Southwest Airlines flights tracked on this route; 4 cancelled, 0 diverted.
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.