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

Grand Rapids, MI (GRR) to Las Vegas, NV (LAS) flight delay odds

Historically, 71.5% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 411 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
71.5%arrived on time
17.8%30+ min late
0.0%cancelled
411scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.8%all scheduled flights
120+ minutes late2.4%all scheduled flights
Diverted0.7%did not reach as scheduled
Average arrival+11.0 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 morning5777.2%17.5%0.0%
Afternoon31670.6%17.4%0.0%

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
Monday8476.2%11.9%0.0%
Thursday8073.8%16.2%0.0%
Friday8363.9%21.7%0.0%
Saturday3076.7%13.3%0.0%
Sunday8869.3%22.7%0.0%

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
Allegiant Air21471.0%19.2%0.0%
Southwest Airlines19772.1%16.2%0.0%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 20255253.8%28.8%0.0%
August 20254175.6%22.0%0.0%
September 20253884.2%7.9%0.0%
October 20254868.8%12.5%0.0%
November 20254484.1%9.1%0.0%
December 20254757.4%31.9%0.0%
January 20262759.3%33.3%0.0%
February 20263476.5%14.7%0.0%
March 20262075.0%15.0%0.0%
April 20261782.4%11.8%0.0%
May 20261877.8%5.6%0.0%
June 20262584.0%4.0%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.

Airline45.0%
Late aircraft34.5%
National airspace17.6%
Weather2.7%
Security0.2%
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.