About SkyWest Airlines
SkyWest Airlines is a regional United States airline headquartered in St. George, UT. The carrier operates under the IATA designator OO and the ICAO designator SKW; air-traffic controllers address its flight crews on the radio with the callsign "SKYWEST". The airline was founded in 1972 and currently operates a fleet of approximately 481 aircraft.
Within the US air-travel ecosystem, SkyWest Airlines sits in the "Regional" segment. Regional carriers operate the smaller jets and turboprops that feed traffic into the major hubs. Most of their flights are operated under the brand of a major partner, but the safety oversight, crews, and aircraft remain the regional carrier's responsibility.
Codes & identifiers
| Legal / brand name | SkyWest Airlines |
|---|---|
| IATA code | OO |
| ICAO code | SKW |
| Radio callsign | SKYWEST |
| Category | Regional |
| Headquarters | St. George, UT |
| Year founded | 1972 |
| Fleet size | 481 aircraft |
| Official website | www.skywest.com |
Hub & focus airports
The airports below are listed as hubs or focus cities for SkyWest Airlines. From these airports the carrier operates the densest schedule of nonstop departures, holds the most gate space, and typically supports the broadest range of international or long-haul service.
| Airport | City | State | IATA | Class |
|---|---|---|---|---|
| Salt Lake City International Airport | Salt Lake City | UT | SLC |
Large hub |
| Denver International Airport | Denver | CO | DEN |
Large hub |
| Chicago O'Hare International Airport | Chicago | IL | ORD |
Large hub |
| Phoenix Sky Harbor International Airport | Phoenix | AZ | PHX |
Large hub |
| Los Angeles International Airport | Los Angeles | CA | LAX |
Large hub |
| Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field | Minneapolis | MN | MSP |
Large hub |
| Detroit Metropolitan Wayne County Airport | Detroit | MI | DTW |
Large hub |
| San Francisco International Airport | San Francisco | CA | SFO |
Large hub |
Booking & service notes
Schedules, fares, and aircraft assignments for SkyWest Airlines change frequently, sometimes weekly. The data on this page is intended as a stable reference for codes, headquarters, fleet scale, and hub list; for live availability, fare class rules, baggage policies, and seat selection, always consult the carrier's own booking system at www.skywest.com. When a flight is operated under SkyWest Airlines's code but flown by a regional partner, the operating carrier is normally disclosed on the booking page; this distinction matters for elite-status benefits and, in rare cases, for irregular-operations rebooking.