Historical on-time performance
Austin to Boston
1,698 miData through May 2026Source: US DOT · BTS
Flights on AUS–BOS arrive on time 65% of the time over the last 12 months.
On-time rate65%arrived within 15 min
p90 delay85 min1 in 10 flights is worse (tail risk)
Cancelled2.2%of scheduled flights
based on 1,325 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Delta Air LinesbestOn-time68%Medianon timep9070 minCancel2.7%Flights987
- JetBlue AirwaysOn-time58%Median5 minp90100 minCancel0.4%Flights276
- Southwest AirlinesOn-time47%Median15 minp90115 minCancel1.6%Flights62
Why flights run late
Delay causes
- Airline29%
- Weather1%
- Air traffic (NAS)30%
- Late aircraft40%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline38%
- Weather48%
- Air traffic (NAS)14%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 29 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly AUS → BOS
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 87% on time.
- Mornings87% on time · p90 15 min · 1,323 flights
- Evenings66% on time · p90 80 min · 1,725 flights
- Afternoons63% on time · p90 95 min · 654 flights
- Middays60% on time · p90 85 min · 1,054 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 66% to 76% on time.
- Saturdays76% on time · p90 60 min · 552 flights
- Tuesdays76% on time · p90 50 min · 687 flights
- Wednesdays75% on time · p90 45 min · 688 flights
- Mondays68% on time · p90 80 min · 713 flights
- Thursdays66% on time · p90 90 min · 709 flights
- Fridays66% on time · p90 85 min · 715 flights
- Sundays66% on time · p90 85 min · 696 flights
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