Green Bay/Austin Straubel International ⇄ Denver International GRB–DEN
Airlines flew 18 flights between Green Bay/Austin Straubel International GRB in Green Bay, WI and Denver International DEN in Denver, CO in the twelve months to July 2026, both directions together: 2,722 passengers in 3,872 seats, 70% of them filled. 905 miles, about 128 minutes in the air, on 4 airlines: Frontier Airlines Inc. (12), Delta Air Lines Inc. (4), SkyWest Airlines Inc. (1), United Air Lines Inc. (1). Planning to fly it yourself? The weather and winds along this route right now.
Flights by month both directions
By month, as a table
| flights | |
|---|---|
| 2/25 | 1 |
| 5/25 | 12 |
| 6/25 | 18 |
| 7/25 | 16 |
| 8/25 | 12 |
| 11/25 | 1 |
| 12/25 | 4 |
| 7/26 | 1 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 2/25 | 0 |
| 5/25 | 1,503 |
| 6/25 | 2,395 |
| 7/25 | 2,583 |
| 8/25 | 2,200 |
| 11/25 | 0 |
| 12/25 | 338 |
| 7/26 | 184 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Frontier Airlines Inc. F9 | 12 | 2,200 | 77% | scheduled passenger service |
| Delta Air Lines Inc. DL | 4 | 338 | 46% | charter passenger service |
| SkyWest Airlines Inc. OO | 1 | 0 | 0% | scheduled passenger service |
| United Air Lines Inc. UA | 1 | 184 | 92% | scheduled passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Airbus Industrie A321-200n | 11 | 236 | 2,039 |
| Airbus Industrie A321Neoxlr | 4 | 210 | 483 |
| Boeing 737-900ER | 2 | 180 | 200 |
| Embraer ERJ-175 | 1 | 70 | 0 |
GRB → DEN this direction alone · flown February 2025 to December 2025
8 flights of 6 scheduled, 1,291 passengers in 1,801 seats. Frontier Airlines Inc. 6; Delta Air Lines Inc. 2.
DEN → GRB this direction alone · flown May 2025 to July 2026
10 flights of 7 scheduled, 1,431 passengers in 2,071 seats, 454 pounds of mail. Frontier Airlines Inc. 6; Delta Air Lines Inc. 2; SkyWest Airlines Inc. 1; United Air Lines Inc. 1.
Source: the Bureau of Transportation Statistics' T-100 Segment table (all carriers). A flight is one departure performed on this segment; seats and passengers are the airlines' own monthly reports; "seats filled" is passengers divided by seats. The miles are the DOT's great-circle distance. Both ends: Green Bay/Austin Straubel International GRB and Denver International DEN; all routes.