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

Baltimore, MD (BWI) to Las Vegas, NV (LAS) flight delay odds

Historically, 77.8% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 1,811 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
77.8%arrived on time
12.1%30+ min late
1.0%cancelled
1,811scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.0%all scheduled flights
120+ minutes late2.3%all scheduled flights
Diverted0.4%did not reach as scheduled
Average arrival+3.4 mincompleted flights

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

Departure windowFlightsOn time30+ minCancelled
Early morning57890.8%4.3%0.2%
Late morning23284.5%7.3%1.3%
Afternoon44271.3%15.2%0.5%
Evening48368.3%19.3%2.3%
Night7656.6%23.7%2.6%

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

DayFlightsOn time30+ minCancelled
Monday26878.4%14.2%1.5%
Tuesday25782.1%10.9%0.4%
Wednesday26280.9%11.8%0.4%
Thursday26774.2%12.4%1.1%
Friday26676.7%13.9%0.8%
Saturday21780.6%8.8%0.5%
Sunday27472.6%12.4%2.6%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 flights.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines1,63076.9%12.4%1.1%
Spirit Airlines18185.6%9.9%0.6%

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

MonthFlightsOn time30+ minCancelled
July 202517163.2%21.1%4.7%
August 202516086.2%6.9%0.0%
September 202516881.5%10.1%0.0%
October 202518685.5%9.1%0.0%
November 202515687.8%5.8%0.6%
December 202515269.7%14.5%0.7%
January 202612871.1%14.8%3.9%
February 202611384.1%6.2%1.8%
March 202614479.2%11.8%1.4%
April 202614575.2%12.4%0.0%
May 202614983.2%10.7%0.0%
June 202613965.5%22.3%0.0%

What drove reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

Airline33.0%
Late aircraft33.6%
National airspace23.6%
Weather7.9%
Security1.9%
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.