Southwest Airlines AUS to BOS on-time performance
Southwest Airlines nonstop flights from Austin to Boston · Aug 2025 – Jul 2026
On-time arrivals
56%
arrived < 15 min late
Cancelled
1.8%
5 flights
Avg arrival delay
24 min
51 min when late
Rank on route
#3 of 3
route average 65% on time
Key facts
- Southwest Airlines flights on AUS to BOS arrived on time 56% of the time in Aug 2025 – Jul 2026.
- 1.8% were cancelled, and 13% arrived an hour or more late.
- That ranks #3 of 3 airlines on this route, which averaged 65% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (49%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion49%
- Late-arriving aircraft27%
- Airline (crew, maintenance, cleaning, fueling)23%
- Security0%
- Extreme weather0%
Other airlines on AUS to BOS
- Delta Air Lines70% on time · 29 min avg delay
- JetBlue60% on time · 35 min avg delay
Full AUS to BOS comparison →
Southwest Airlines on-time record across all routes →
282 Southwest Airlines flights tracked on this route; 5 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.