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Alaska vs SkyWest: On-Time Performance Compared

Last 12 months · Aug 2025 – Jul 2026

Data through July 2026 · Last updated October 18, 2026

Over the last 12 months 79.6% of Alaska flights arrived on time, compared with 79.0% for SkyWest.

Alaska cancelled fewer flights (1.2% vs 1.8%), and late flights averaged 52 minutes late on Alaska vs 88 on SkyWest.

On the 74 routes both airlines fly regularly, Alaska had the better on-time record on 31 and SkyWest on 43.

Alaska vs SkyWest: key numbers

Last 12 months, all flights each airline operated.

MeasureAlaskaSkyWest
On-time arrivals79.6%79.0%
On-time departures79.9%80.9%
Avg delay when late52 min88 min
Cancelled1.2%1.8%
Diverted0.3%0.3%
Scheduled flights301,435854,130

Monthly on-time trend: Alaska vs SkyWest

On-time arrival % each month, last 24 months.

What delays each airline

Share of each airline’s reported delay minutes by cause, last 12 months.

Routes both airlines fly

74 routes where each airline had at least 100 completed flights in the last 12 months; the 25 busiest are shown. Better on-time rate in bold.

RouteAlaska on timeSkyWest on timeAlaska flightsSkyWest flights
SEA → GEG 77.6%87.8% 1,7632,956
GEG → SEA 81.1%88.0% 1,7632,918
PDX → SEA 82.6%86.1% 1,1573,504
SEA → PDX 76.8%86.0% 1,1553,377
SEA → LAX 80.7%85.5% 3,2891,237
LAX → SEA 85.3%84.0% 3,2871,234
SEA → BOI 81.2%87.2% 9232,958
SFO → SEA 69.7%70.3% 2,7131,073
SEA → SFO 57.8%71.9% 2,7101,071
BOI → SEA 82.4%86.1% 9232,838
SEA → SJC 81.1%86.7% 1,8811,593
SJC → SEA 81.5%89.1% 1,8781,594
LAX → SFO 51.2%69.2% 8642,573
SFO → LAX 68.1%75.3% 8622,568
SEA → PHX 79.1%79.5% 2,887445
PHX → SEA 84.5%83.0% 2,884445
SMF → SEA 80.4%87.3% 1,3521,899
SEA → SMF 79.8%89.0% 1,3531,888
SEA → SNA 85.9%80.8% 2,580436
SNA → SEA 87.6%82.4% 2,578436
LAX → PDX 90.0%75.3% 1,846590
PDX → LAX 86.0%80.4% 1,845590
ONT → SEA 82.2%91.8% 1,2591,048
SEA → ONT 77.1%88.8% 1,2591,047
EUG → SEA 88.3%88.2% 3281,605

More comparisons

Alaska Airlines full stats · SkyWest Airlines full stats · All airline comparisons