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

Washington Dulles International ⇄ Phoenix Sky Harbor International IAD–PHX

Airlines flew 2,068 flights between Washington Dulles International IAD in Washington, DC and Phoenix Sky Harbor International PHX in Phoenix, AZ in the twelve months to July 2026, both directions together: 296,406 passengers in 359,691 seats, 82% of them filled, and 173,079 pounds of freight. 1,956 miles, about 267 minutes in the air, on 6 airlines: United Air Lines Inc. (1,453), Southwest Airlines Co. (605), Delta Air Lines Inc. (4), American Airlines Inc. (4) and 2 more. Planning to fly it yourself? The weather and winds along this route right now.

2,068
flights, twelve months
IAD-PHX: 1,033 · PHX-IAD: 1,035
296,406
passengers
82% of seats filled
1,956
miles
about 267 minutes airborne
6
airlines
10 aircraft types

Flights by month both directions

0621241852471/254/257/2510/251/264/26617/26
By month, as a table
flights
1/25173
2/25187
3/25247
4/25241
5/25226
6/25178
7/25179
8/25176
9/25177
10/25196
11/25216
12/25217
1/26191
2/26162
3/26231
4/26182
5/26191
6/2668
7/2661

Passengers by month

08,64217,28425,92534,5671/254/257/2510/251/264/2610,0587/26
By month, as a table
passengers
1/2523,826
2/2523,891
3/2534,567
4/2533,882
5/2533,504
6/2526,993
7/2526,224
8/2524,062
9/2525,035
10/2529,316
11/2530,499
12/2530,813
1/2623,763
2/2621,311
3/2634,250
4/2626,645
5/2629,382
6/2611,272
7/2610,058

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
United Air Lines Inc. UA1,453215,44685%scheduled passenger service
Southwest Airlines Co. WN60580,08977%scheduled passenger service
Delta Air Lines Inc. DL416557%charter passenger service
American Airlines Inc. AA464889%scheduled passenger service
Scott Aviation, LLC d/b/a Silver Air 3EQ1323%charter passenger service
Breeze Aviation Group DBA Breeze MX15540%charter passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Boeing B737 Max 90056117984,993
Boeing 737-80054517076,622
Boeing 737-900ER47917970,316
Boeing B737 Max 80041217356,324
Boeing 737-700/700LR/Max 7631427,611
Boeing 757-200472165
Bombardier Global 50001133
Airbus Industrie A321Neoxlr1190151
A220-300 BD-500-1A11113755
Airbus Industrie A321-200n1196166

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

1,033 flights of 1,037 scheduled, 146,940 passengers in 178,501 seats, 48,823 pounds of freight, 142 pounds of mail. United Air Lines Inc. 725; Southwest Airlines Co. 302; Delta Air Lines Inc. 3; Scott Aviation, LLC d/b/a Silver Air 1; American Airlines Inc. 1; Breeze Aviation Group DBA Breeze 1.

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

1,035 flights of 1,040 scheduled, 149,466 passengers in 181,190 seats, 124,256 pounds of freight, 12,939 pounds of mail. United Air Lines Inc. 728; Southwest Airlines Co. 303; American Airlines Inc. 3; Delta 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: Washington Dulles International IAD and Phoenix Sky Harbor International PHX; all routes.