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Frontier vs SkyWest: On-Time Performance Compared

Last 12 months · Aug 2025 – Jul 2026

Data through July 2026 · Last updated October 18, 2026

Frontier Airlines 73.1%on time · ranked 12th of 14 SkyWest Airlines 79.0%on time · ranked 6th of 14

SkyWest was more punctual than Frontier over the last 12 months: 79.0% of its flights arrived on time, against 73.1%.

SkyWest cancelled fewer flights (1.8% vs 1.9%), and late flights averaged 83 minutes late on Frontier vs 88 on SkyWest.

On the 97 routes both airlines fly regularly, Frontier had the better on-time record on 23 and SkyWest on 74.

Frontier vs SkyWest: key numbers

Last 12 months, all flights each airline operated.

MeasureFrontierSkyWest
On-time arrivals73.1%79.0%
On-time departures73.6%80.9%
Avg delay when late83 min88 min
Cancelled1.9%1.8%
Diverted0.2%0.3%
Scheduled flights209,405854,130

Monthly on-time trend: Frontier 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

97 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.

RouteFrontier on timeSkyWest on timeFrontier flightsSkyWest flights
LAX → SMF 82.8%87.5% 2263,509
SMF → LAX 72.8%89.7% 2263,509
SNA → SFO 60.4%68.8% 1513,575
SFO → SNA 69.3%78.5% 1513,515
PHX → LAX 83.0%89.8% 4992,638
LAX → PHX 75.4%87.2% 4982,638
LAX → SFO 49.5%69.2% 3912,573
SFO → LAX 68.5%75.3% 3902,568
DEN → SLC 82.2%80.5% 1,0231,399
SLC → DEN 79.2%85.3% 1,0231,394
SJC → LAX 77.7%92.3% 1171,953
LAX → SJC 80.5%91.0% 1171,949
LAX → DEN 81.6%81.7% 7831,200
DEN → LAX 82.3%79.3% 7821,200
PHX → SLC 84.8%82.4% 6971,209
SLC → PHX 82.6%85.8% 6971,209
SAN → SFO 42.9%65.2% 2061,517
LAS → SAN 68.5%73.8% 3741,322
SAN → LAS 66.3%79.3% 3741,321
SFO → SAN 52.0%63.5% 2061,477
OKC → DEN 77.9%83.5% 3501,203
DEN → OKC 79.5%83.8% 3491,197
SEA → LAX 80.4%85.5% 2951,237
LAX → SEA 81.8%84.0% 2951,234
FSD → DEN 72.0%83.1% 1501,304

More comparisons

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