Delta Air Lines AUS to BOS on-time performance
Delta Air Lines nonstop flights from Austin to Boston · Aug 2025 – Jul 2026
On-time arrivals
70%
arrived < 15 min late
Cancelled
2.5%
25 flights
Avg arrival delay
29 min
93 min when late
Rank on route
#1 of 3
route average 65% on time
Key facts
- Delta Air Lines flights on AUS to BOS arrived on time 70% of the time in Aug 2025 – Jul 2026.
- 2.5% were cancelled, and 13% arrived an hour or more late.
- That ranks #1 of 3 airlines on this route, which averaged 65% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (37%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)37%
- Late-arriving aircraft32%
- Air traffic control & airport congestion30%
- Extreme weather1%
- Security0%
Other airlines on AUS to BOS
- JetBlue60% on time · 35 min avg delay
- Southwest Airlines56% on time · 24 min avg delay
Full AUS to BOS comparison →
Delta Air Lines on-time record across all routes →
996 Delta Air Lines flights tracked on this route; 25 cancelled, 3 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.