Great Lakes Airlines (ZK)
An at-a-glance profile of Great Lakes Airlines, the active carrier registered in United States under IATA code ZK. Includes its callsign, ICAO identifier, and a sample of routes filed under this code.
Carrier facts
- Legal/common name: Great Lakes Airlines
- Country of registration: United States
- ATC callsign: LAKES AIR
- ICAO code: GLA
Great Lakes Airlines is one of 983 active airlines indexed in this directory. The route sample below comes straight from the OpenFlights routes table. Treat it as a snapshot rather than a complete schedule. It still gives a clear picture of where the carrier flies and which airports it concentrates on.
Route sample
Up to 60 routes filed under ZK. Each row links to both endpoints' airport pages and to a dedicated route page.
| From | To | Route | ||
|---|---|---|---|---|
| AIA | Alliance, United States | CDR | Chadron, United States | AIA→CDR |
| ALS | Alamosa, United States | DEN | Denver, United States | ALS→DEN |
| ALS | Alamosa, United States | FMN | Farmington, United States | ALS→FMN |
| ATY | Watertown, United States | MSP | Minneapolis, United States | ATY→MSP |
| ATY | Watertown, United States | PIR | Pierre, United States | ATY→PIR |
| BFF | Scottsbluff, United States | DEN | Denver, United States | BFF→DEN |
| CDR | Chadron, United States | DEN | Denver, United States | CDR→DEN |
| CEZ | Cortez, United States | DEN | Denver, United States | CEZ→DEN |
| CYS | Cheyenne, United States | DEN | Denver, United States | CYS→DEN |
| CYS | Cheyenne, United States | WRL | Worland, United States | CYS→WRL |
| DDC | Dodge City, United States | DEN | Denver, United States | DDC→DEN |
| DDC | Dodge City, United States | LBL | Liberal, United States | DDC→LBL |
| DEN | Denver, United States | AIA | Alliance, United States | DEN→AIA |
| DEN | Denver, United States | ALS | Alamosa, United States | DEN→ALS |
| DEN | Denver, United States | BFF | Scottsbluff, United States | DEN→BFF |
| DEN | Denver, United States | CEZ | Cortez, United States | DEN→CEZ |
| DEN | Denver, United States | CYS | Cheyenne, United States | DEN→CYS |
| DEN | Denver, United States | DDC | Dodge City, United States | DEN→DDC |
| DEN | Denver, United States | FMN | Farmington, United States | DEN→FMN |
| DEN | Denver, United States | LBF | North Platte, United States | DEN→LBF |
| DEN | Denver, United States | LBL | Liberal, United States | DEN→LBL |
| DEN | Denver, United States | MCK | McCook, United States | DEN→MCK |
| DEN | Denver, United States | PGA | Page, United States | DEN→PGA |
| DEN | Denver, United States | PIR | Pierre, United States | DEN→PIR |
| DEN | Denver, United States | RIW | Riverton WY, United States | DEN→RIW |
| DEN | Denver, United States | SHR | Sheridan, United States | DEN→SHR |
| FMN | Farmington, United States | ALS | Alamosa, United States | FMN→ALS |
| FMN | Farmington, United States | DEN | Denver, United States | FMN→DEN |
| FMN | Farmington, United States | SOW | Show Low, United States | FMN→SOW |
| HON | Huron, United States | PIR | Pierre, United States | HON→PIR |
| LAX | Los Angeles, United States | MCE | Merced, United States | LAX→MCE |
| LAX | Los Angeles, United States | PRC | Prescott, United States | LAX→PRC |
| LAX | Los Angeles, United States | VIS | Visalia, United States | LAX→VIS |
| LBF | North Platte, United States | DEN | Denver, United States | LBF→DEN |
| LBL | Liberal, United States | DDC | Dodge City, United States | LBL→DDC |
| LBL | Liberal, United States | DEN | Denver, United States | LBL→DEN |
| MCE | Merced, United States | LAX | Los Angeles, United States | MCE→LAX |
| MCK | McCook, United States | DEN | Denver, United States | MCK→DEN |
| MSP | Minneapolis, United States | ATY | Watertown, United States | MSP→ATY |
| PGA | Page, United States | DEN | Denver, United States | PGA→DEN |
| PGA | Page, United States | PHX | Phoenix, United States | PGA→PHX |
| PHX | Phoenix, United States | PGA | Page, United States | PHX→PGA |
| PHX | Phoenix, United States | SOW | Show Low, United States | PHX→SOW |
| PIR | Pierre, United States | ATY | Watertown, United States | PIR→ATY |
| PIR | Pierre, United States | DEN | Denver, United States | PIR→DEN |
| PIR | Pierre, United States | HON | Huron, United States | PIR→HON |
| PRC | Prescott, United States | LAX | Los Angeles, United States | PRC→LAX |
| RIW | Riverton WY, United States | DEN | Denver, United States | RIW→DEN |
| SHR | Sheridan, United States | DEN | Denver, United States | SHR→DEN |
| SOW | Show Low, United States | FMN | Farmington, United States | SOW→FMN |
| SOW | Show Low, United States | PHX | Phoenix, United States | SOW→PHX |
| VIS | Visalia, United States | LAX | Los Angeles, United States | VIS→LAX |
| WRL | Worland, United States | CYS | Cheyenne, United States | WRL→CYS |
Top destinations in the sample
| IATA | Airport | City | Country | Sample frequency |
|---|---|---|---|---|
| DEN | Denver International Airport | Denver | United States | 14 |
| FMN | Four Corners Regional Airport | Farmington | United States | 3 |
| PIR | Pierre Regional Airport | Pierre | United States | 3 |
| LAX | Los Angeles International Airport | Los Angeles | United States | 3 |
| LBL | Liberal Mid-America Regional Airport | Liberal | United States | 2 |
| ALS | San Luis Valley Regional Bergman Field | Alamosa | United States | 2 |
| CYS | Cheyenne Regional Jerry Olson Field | Cheyenne | United States | 2 |
| DDC | Dodge City Regional Airport | Dodge City | United States | 2 |
| PGA | Page Municipal Airport | Page | United States | 2 |
| SOW | Show Low Regional Airport | Show Low | United States | 2 |
| ATY | Watertown Regional Airport | Watertown | United States | 2 |
| PHX | Phoenix Sky Harbor International Airport | Phoenix | United States | 2 |
| CDR | Chadron Municipal Airport | Chadron | United States | 1 |
| MSP | Minneapolis-St Paul International/Wold-Chamberlain Airport | Minneapolis | United States | 1 |
| WRL | Worland Municipal Airport | Worland | United States | 1 |
| AIA | Alliance Municipal Airport | Alliance | United States | 1 |
| BFF | Western Neb. Rgnl/William B. Heilig Airport | Scottsbluff | United States | 1 |
| CEZ | Cortez Municipal Airport | Cortez | United States | 1 |
| LBF | North Platte Regional Airport Lee Bird Field | North Platte | United States | 1 |
| MCK | Mc Cook Ben Nelson Regional Airport | McCook | United States | 1 |
| RIW | Riverton Regional Airport | Riverton WY | United States | 1 |
| SHR | Sheridan County Airport | Sheridan | United States | 1 |
| MCE | Merced Regional Macready Field | Merced | United States | 1 |
| PRC | Ernest A. Love Field | Prescott | United States | 1 |
| VIS | Visalia Municipal Airport | Visalia | United States | 1 |
Reading an airline page
An airline's IATA code is the two-character identifier you see on tickets and flight numbers. The ICAO code is the three-letter identifier used in air traffic control and on flight plans. The callsign is the spoken name controllers use on the radio. Together they uniquely fingerprint the carrier across regulatory and operational systems, which is handy when you have a flight number from one source and want to confirm the operator from another.
Route samples here come from a community-maintained snapshot. They aren't a substitute for the airline's official schedule, but they reflect which markets the carrier has historically flown. They're also a fast way to spot a carrier's hubs, since hub airports turn up at the top of both the destination and origin lists.