The U.S. aircraft register, updated daily
Routes and flights · the DOT's airline reports, August 2025 to July 2026

Denver International ⇄ Tucson International DEN–TUS

Airlines flew 5,514 flights between Denver International DEN in Denver, CO and Tucson International TUS in Tucson, AZ in the twelve months to July 2026, both directions together: 601,657 passengers in 768,830 seats, 78% of them filled, and 219,968 pounds of freight. 639 miles, about 97 minutes in the air, on 4 airlines: Southwest Airlines Co. (2,369), United Air Lines Inc. (1,727), SkyWest Airlines Inc. (1,248), Frontier Airlines Inc. (170). Planning to fly it yourself? The weather and winds along this route right now.

5,514
flights, twelve months
DEN-TUS: 2,745 · TUS-DEN: 2,769
601,657
passengers
78% of seats filled
639
miles
about 97 minutes airborne
4
airlines
15 aircraft types

Flights by month both directions

01442874305741/254/257/2510/251/264/262907/26
By month, as a table
flights
1/25507
2/25482
3/25574
4/25553
5/25545
6/25379
7/25327
8/25388
9/25392
10/25518
11/25519
12/25541
1/26511
2/26498
3/26556
4/26529
5/26473
6/26299
7/26290

Passengers by month

016,40232,80449,20665,6081/254/257/2510/251/264/2635,4957/26
By month, as a table
passengers
1/2544,971
2/2547,958
3/2561,563
4/2556,429
5/2556,547
6/2538,314
7/2536,592
8/2540,950
9/2547,541
10/2561,178
11/2553,198
12/2554,275
1/2648,803
2/2654,414
3/2665,608
4/2654,979
5/2647,698
6/2637,518
7/2635,495

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Southwest Airlines Co. WN2,369298,21179%scheduled passenger service
United Air Lines Inc. UA1,727210,77479%charter passenger service, scheduled passenger service
SkyWest Airlines Inc. OO1,24870,79580%scheduled passenger service
Frontier Airlines Inc. F917021,87765%scheduled passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Boeing 737-8001,350170180,646
Embraer ERJ-1751,0357362,239
Boeing 737-700/700LR/Max 71,020140116,188
Boeing B737 Max 800900174122,144
Airbus Industrie A31941712642,584
Airbus Industrie A320-100/20026415128,114
Canadair RJ-700153708,556
Airbus Industrie A320-200n12418615,483
Boeing 737-900ER8617910,600
Boeing B737 Max 900651799,343
Canadair RJ-200ER /RJ-44047500
Airbus Industrie A321-200n322374,629
Bombardier CRJ55012500
Airbus Industrie A321Neoxlr82301,131
Embraer-Emb-1701700

DEN → TUS this direction alone · flown January 2025 to July 2026

2,745 flights of 2,752 scheduled, 300,057 passengers in 382,281 seats, 140,735 pounds of freight. Southwest Airlines Co. 1,179; United Air Lines Inc. 866; SkyWest Airlines Inc. 615; Frontier Airlines Inc. 85.

TUS → DEN this direction alone · flown January 2025 to July 2026

2,769 flights of 2,782 scheduled, 301,600 passengers in 386,549 seats, 79,233 pounds of freight, 2 pounds of mail. Southwest Airlines Co. 1,190; United Air Lines Inc. 861; SkyWest Airlines Inc. 633; Frontier Airlines Inc. 85.

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: Denver International DEN and Tucson International TUS; all routes.