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

Las Vegas, NV (LAS) to Portland, OR (PDX) flight delay odds

Historically, 78.3% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 2,984 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
78.3%arrived on time
12.8%30+ min late
0.6%cancelled
2,984scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.5%all scheduled flights
120+ minutes late1.7%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+4.4 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 morning65289.1%5.2%0.8%
Late morning61085.1%6.4%0.7%
Afternoon72074.7%13.6%0.1%
Evening73273.8%18.9%0.7%
Night27058.5%27.0%1.1%

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
Monday47080.0%13.2%0.4%
Tuesday40380.1%11.7%0.2%
Wednesday38781.7%9.0%0.0%
Thursday44675.1%16.6%0.9%
Friday46574.0%16.1%0.9%
Saturday33783.7%7.7%0.3%
Sunday47675.6%13.2%1.3%

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
Alaska Airlines1,53482.7%10.0%0.7%
Southwest Airlines1,14972.1%17.4%0.3%
Frontier Airlines17374.0%12.7%2.9%
Spirit Airlines12887.5%5.5%0.0%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 202530475.7%17.4%0.7%
August 202527682.2%12.0%0.4%
September 202526479.2%10.2%0.0%
October 202525072.4%14.8%1.2%
November 202523883.2%10.1%0.8%
December 202523972.4%16.7%0.0%
January 202622583.6%10.7%0.9%
February 202620687.4%4.9%0.0%
March 202625678.1%12.5%1.2%
April 202623977.8%12.6%0.0%
May 202623778.1%13.1%0.4%
June 202625071.6%16.4%1.6%

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.

Airline31.2%
Late aircraft55.9%
National airspace9.3%
Weather3.4%
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.