On-Time Report

Airlines › SkyWest Airlines › May 2026

Carrier month · May 2026

SkyWest Airlines in May 2026

79.2%arrived on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.

In May 2026, SkyWest Airlines (OO) reported 75,994 scheduled domestic flights. 79.2% arrived on time, 0.9% were cancelled and 0.3% diverted.

All reporting carriers together recorded 77.6% on time and 0.9% cancelled that month, so the carrier was 1.6 points above the combined figure.

A year earlier, in May 2025, it reported 72,962 flights with 80.4% on time: a change of −1.2 points.

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 44%, late-arriving aircraft 26% and national aviation system 19%.

Every scheduled domestic flight reported by SkyWest Airlines in May 2026.

May 2026 against a year earlier, the carrier's year and all carriers

MeasureMay 2026May 2025OO, 12 months to Jul 2026All carriers, May 2026
Arrived on time79.2%80.4%77.4%77.6%
Departed on time81.3%83.0%79.5%77.1%
Cancelled0.9%0.9%1.8%0.9%
Average arrival delay7.7 min7.2 min9.6 min6.2 min
Scheduled flights a day2,5332,4322,34020,391
Scheduled flights75,99472,962854,130611,735

249 airports and 1,360 routes had OO flights that month.

Busiest airports that month

AirportDeparturesOn timeAvg arrival delayCancelled
ORD Chicago7,81769.8%15.2 min1.6%
DEN Denver6,33181.5%3.9 min0.4%
SLC Salt Lake City3,28689.3%-2.4 min0.0%
LAX Los Angeles3,23785.8%-1.2 min0.1%
MSP Minneapolis2,78785.4%4.7 min0.2%
PHX Phoenix2,65682.3%4.7 min0.1%
SEA Seattle2,57786.1%-1.1 min0.0%
SFO San Francisco2,51864.8%17.4 min1.4%
DTW Detroit2,31681.1%6.7 min0.7%
DFW Dallas/Fort Worth1,85075.1%8.0 min4.2%
SAN San Diego1,45075.2%4.6 min1.0%
IAH Houston1,22671.4%18.5 min0.6%
PDX Portland1,02087.1%-1.3 min0.3%
BOI Boise91980.7%3.2 min0.1%
MKE Milwaukee81275.0%10.6 min0.6%

By scheduled departure hour

On-time share:under 62%6270768288% and over
Share of OO flights that arrived on time, by scheduled departure hour (local time at each origin), May 2026.

Delay causes

BTS cause categoryShare of delay minutesAll carriers, May 2026Minutes
Air carrier43.6%33.0%535,133
Late-arriving aircraft25.9%40.4%317,891
National Aviation System19.2%20.5%235,319
Extreme weather11.2%6.0%137,931
Security0.1%0.1%760
1,227,034 delay minutes on 14,925 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← April 2026June 2026 →

Questions and answers

What share of SkyWest Airlines flights were on time in May 2026?

79.2% of 75,994 scheduled domestic flights arrived less than 15 minutes late; all reporting carriers together recorded 77.6% that month.

How does that compare with a year earlier?

In May 2025 the carrier reported 72,962 flights with 80.4% on time and 0.9% cancelled, against 79.2% and 0.9% in May 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for May 2026; public domain. Domestic scheduled flights, totals and averages only. The site's data runs through July 2026. Full record for SkyWest Airlines · methodology · corrections.