Delta Air Lines LAX to BOS on-time performance
Delta Air Lines nonstop flights from Los Angeles to Boston · Aug 2025 – Jul 2026
On-time arrivals
77%
arrived < 15 min late
Cancelled
1.9%
24 flights
Avg arrival delay
21 min
88 min when late
Rank on route
#2 of 4
route average 77% on time
Key facts
- Delta Air Lines flights on LAX to BOS arrived on time 77% of the time in Aug 2025 – Jul 2026.
- 1.9% were cancelled, and 10% arrived an hour or more late.
- That ranks #2 of 4 airlines on this route, which averaged 77% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (41%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)41%
- Air traffic control & airport congestion31%
- Late-arriving aircraft20%
- Extreme weather8%
- Security0%
Other airlines on LAX to BOS
- JetBlue75% on time · 18 min avg delay
- American Airlines75% on time · 24 min avg delay
- United Airlines87% on time · 10 min avg delay
Full LAX to BOS comparison →
Delta Air Lines on-time record across all routes →
1,236 Delta Air Lines flights tracked on this route; 24 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.