BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
AUS→BOS

Austin, TX (AUS) to Boston, MA (BOS) flight delay odds

63.7% of 1,634 official scheduled AUS-to-BOS flights arrived on time; 24.2% arrived at least 30 minutes late and 2.3% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALVariable
63.7%arrived on time
24.2%30+ min late
2.3%cancelled
1,634scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late14.1%all scheduled flights
120+ minutes late5.8%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+22.6 mincompleted flights

Which departure time was most reliable for AUS to BOS?

Among qualifying AUS-to-BOS departure window results, Early morning had the highest on-time rate: 85.6% of 362 flights. Afternoon was lowest at 50.6% across 595 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning36285.6%6.6%2.5%
Late morning20168.2%20.9%1.5%
Afternoon59550.6%36.5%1.8%
Evening47661.6%23.5%3.2%

Which weekday was most reliable for AUS to BOS?

Among qualifying AUS-to-BOS weekday results, Saturday had the highest on-time rate: 74.9% of 171 flights. Thursday was lowest at 56.1% across 246 flights.

DayFlightsOn time30+ minCancelled
Monday25264.7%22.6%4.8%
Tuesday24371.6%18.9%1.2%
Wednesday23465.4%22.6%1.3%
Thursday24656.1%28.5%2.0%
Friday25058.8%28.0%1.2%
Saturday17174.9%18.7%0.6%
Sunday23858.0%28.2%4.6%

Which airline was most reliable for AUS to BOS?

Among qualifying AUS-to-BOS airline results, Delta Air Lines had the highest on-time rate: 68.7% of 988 flights. Southwest Airlines was lowest at 53.5% across 282 flights.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines98868.7%20.2%2.7%
JetBlue Airways36458.0%30.2%1.6%
Southwest Airlines28253.5%30.1%1.8%

Which month was most reliable for AUS to BOS?

Among qualifying AUS-to-BOS month results, May 2026 had the highest on-time rate: 74.5% of 145 flights. October 2025 was lowest at 53.0% across 151 flights.

MonthFlightsOn time30+ minCancelled
July 202514259.2%29.6%3.5%
August 202514172.3%19.1%0.0%
September 202513759.9%30.7%1.5%
October 202515153.0%37.1%0.7%
November 202513163.4%27.5%1.5%
December 202512564.8%21.6%2.4%
January 20269867.3%18.4%8.2%
February 202611959.7%18.5%8.4%
March 202614555.2%23.4%4.1%
April 202613865.2%21.7%0.0%
May 202614574.5%20.0%0.0%
June 202616270.4%19.8%0.6%

What drove AUS to BOS delay minutes?

Late aircraft was the largest recorded AUS-to-BOS delay category, accounting for 36.4% of 44,515 BTS-attributed delay minutes during July 2025–June 2026.

Airline29.5%
Late aircraft36.4%
National airspace33.4%
Weather0.6%
Security0.1%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.