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

Las Vegas, NV (LAS) to Boston, MA (BOS) flight delay odds

75.1% of 1,639 official scheduled LAS-to-BOS flights arrived on time; 16.8% arrived at least 30 minutes late and 1.3% 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 SIGNALGenerally reliable
75.1%arrived on time
16.8%30+ min late
1.3%cancelled
1,639scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late10.3%all scheduled flights
120+ minutes late3.5%all scheduled flights
Diverted0.4%did not reach as scheduled
Average arrival+6.2 mincompleted flights

Which departure time was most reliable for LAS to BOS?

Among qualifying LAS-to-BOS departure window results, Evening had the highest on-time rate: 77.8% of 63 flights. Late morning was lowest at 72.3% across 582 flights.

Departure windowFlightsOn time30+ minCancelled
Late morning58272.3%20.8%0.5%
Afternoon45275.7%14.8%1.3%
Evening6377.8%15.9%1.6%
Night51276.6%14.6%2.1%

Which weekday was most reliable for LAS to BOS?

Among qualifying LAS-to-BOS weekday results, Tuesday had the highest on-time rate: 84.6% of 227 flights. Sunday was lowest at 64.3% across 249 flights.

DayFlightsOn time30+ minCancelled
Monday25072.8%18.8%2.4%
Tuesday22784.6%11.5%0.9%
Wednesday22075.5%16.4%0.5%
Thursday24871.4%21.4%0.4%
Friday24876.6%14.9%0.4%
Saturday19783.2%11.2%0.0%
Sunday24964.3%21.7%4.4%

Which airline was most reliable for LAS to BOS?

Among qualifying LAS-to-BOS airline results, Delta Air Lines had the highest on-time rate: 75.4% of 593 flights. JetBlue Airways was lowest at 75.0% across 1,046 flights.

AirlineFlightsOn time30+ minCancelled
JetBlue Airways1,04675.0%17.1%1.2%
Delta Air Lines59375.4%16.2%1.5%

Which month was most reliable for LAS to BOS?

Among qualifying LAS-to-BOS month results, June 2026 had the highest on-time rate: 86.3% of 102 flights. October 2025 was lowest at 63.4% across 164 flights.

MonthFlightsOn time30+ minCancelled
July 202512272.1%20.5%1.6%
August 202510679.2%12.3%0.0%
September 202514664.4%27.4%0.0%
October 202516463.4%30.5%0.0%
November 202511683.6%11.2%0.0%
December 202512283.6%9.8%0.8%
January 202613974.8%14.4%4.3%
February 202613071.5%12.3%7.7%
March 202616878.0%14.9%0.6%
April 202616674.1%17.5%0.0%
May 202615877.8%13.9%0.6%
June 202610286.3%9.8%1.0%

What drove LAS to BOS delay minutes?

National airspace was the largest recorded LAS-to-BOS delay category, accounting for 37.6% of 29,507 BTS-attributed delay minutes during July 2025–June 2026.

Airline26.3%
Late aircraft33.4%
National airspace37.6%
Weather2.7%
Security0.0%
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.