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

Denver International ⇄ Phoenix Sky Harbor International DEN–PHX

Airlines flew 17,912 flights between Denver International DEN in Denver, CO and Phoenix Sky Harbor International PHX in Phoenix, AZ in the twelve months to July 2026, both directions together: 2,418,101 passengers in 3,079,485 seats, 79% of them filled, and 3,444,240 pounds of freight. 602 miles, about 89 minutes in the air, on 12 airlines: Southwest Airlines Co. (7,848), United Air Lines Inc. (4,696), Frontier Airlines Inc. (2,915), American Airlines Inc. (1,954) and 8 more. Planning to fly it yourself? The weather and winds along this route right now.

17,912
flights, twelve months
DEN-PHX: 9,005 · PHX-DEN: 8,907
2,418,101
passengers
79% of seats filled
602
miles
about 89 minutes airborne
12
airlines
19 aircraft types

Flights by month both directions

04869721,4581,9441/254/257/2510/251/264/261,3787/26
By month, as a table
flights
1/251,617
2/251,530
3/251,944
4/251,694
5/251,472
6/251,277
7/251,305
8/251,222
9/251,318
10/251,609
11/251,518
12/251,543
1/261,465
2/261,446
3/261,842
4/261,657
5/261,550
6/261,364
7/261,378

Passengers by month

063,454126,908190,362253,8161/254/257/2510/251/264/26175,1017/26
By month, as a table
passengers
1/25195,891
2/25198,091
3/25253,816
4/25206,616
5/25201,465
6/25174,608
7/25172,984
8/25167,335
9/25187,511
10/25223,156
11/25206,311
12/25208,156
1/26196,983
2/26197,231
3/26253,660
4/26212,988
5/26207,884
6/26181,785
7/26175,101

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Southwest Airlines Co. WN7,848968,55975%scheduled passenger service
United Air Lines Inc. UA4,696702,45483%charter passenger service, scheduled passenger service
Frontier Airlines Inc. F92,915500,74683%scheduled passenger service
American Airlines Inc. AA1,954221,89571%scheduled passenger service
Envoy Air MQ34821,49981%scheduled passenger service
Federal Express Corporation FX500scheduled cargo service
SkyWest Airlines Inc. OO491,79351%scheduled passenger service
Delta Air Lines Inc. DL2291750%charter passenger service
CFM Inc d/b/a Contour Airlines d/b/a One Jet Shuttle LF1800%charter passenger service
United Parcel Service 5X90scheduled cargo service
Sun Country Airlines d/b/a MN Airlines SY216086%charter cargo service, scheduled passenger service
Air Canada rouge LP RV17846%scheduled passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Boeing 737-8003,694172479,698
Boeing B737 Max 8003,610174476,795
Boeing 737-700/700LR/Max 72,509140265,101
Airbus Industrie A321-200n2,199215389,675
Boeing 737-900ER1,619179240,538
Airbus Industrie A320-200n1,482186234,005
Airbus Industrie A320-100/20078815592,546
Airbus Industrie A321Neoxlr682208108,444
Boeing B737 Max 90046917971,012
Embraer ERJ-1753857623,292
Airbus Industrie A31936112835,695
Boeing 767-300/300ER5000
Boeing 757-2003061917
Embraer-13518300
Canadair RJ-200ER /RJ-4406500
Canadair RJ-7006660
Boeing 737-9002179323
Boeing 757-300123460
Airbus Industrie A300-600/R/CF/RCF100

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

9,005 flights of 9,032 scheduled, 1,208,893 passengers in 1,541,324 seats, 2,719,405 pounds of freight, 398,552 pounds of mail. Southwest Airlines Co. 3,935; United Air Lines Inc. 2,353; Frontier Airlines Inc. 1,460; American Airlines Inc. 976; Envoy Air 174; Federal Express Corporation 48; SkyWest Airlines Inc. 26; Delta Air Lines Inc. 14; United Parcel Service 9; CFM Inc d/b/a Contour Airlines d/b/a One Jet Shuttle 9; Air Canada rouge LP 1.

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

8,907 flights of 8,942 scheduled, 1,209,208 passengers in 1,538,161 seats, 724,835 pounds of freight, 431,572 pounds of mail. Southwest Airlines Co. 3,913; United Air Lines Inc. 2,343; Frontier Airlines Inc. 1,455; American Airlines Inc. 978; Envoy Air 174; SkyWest Airlines Inc. 23; CFM Inc d/b/a Contour Airlines d/b/a One Jet Shuttle 9; Delta Air Lines Inc. 8; Federal Express Corporation 2; Sun Country Airlines d/b/a MN Airlines 2.

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 Phoenix Sky Harbor International PHX; all routes.